Interstellar dust various dust. Medical search. Frequent questions

This view and some pictures will show us how the flash light, magnification, focus and other standards alone interferes with getting first clear clean focus on Al Foils for search to start then Artifacts of the interstellar dust particles themselves debris from Space craft+ Solar arrays and so on in searching for interstellar Dust. (berkeley.edu)
We are able to reproduce the spectra at the peak positions deduced from Herschel maps and emitted by dust particles at thermal equilibrium, and also the evolution of the spatial structures observed from the near infrared to the submillimeter. (u-psud.fr)
The techniques of infrared astronomy enable investigators to examine many such objects that cannot otherwise be seen from Earth because the light of optical wavelengths that they emit is blocked by intervening dust particles. (britannica.com)
small solid particles, called dust grains. (physicsforums.com)
Dust can come from rocks as the result of collisions, and with successive high speed collisions in space with little or no gravity to collect rocks and dust into a planet, the dust particles get smaller and smaller. (physicsforums.com)
If you are talking about atmospheric dust, then mgb_phys is correct in that much of the dust is geologic in nature, it being made of soil carried up from the wind, particles from volcanic eruptions, and pollution, for a few examples. (physicsforums.com)
There are also airborne dusts such as aerosol particles. (physicsforums.com)
Planck canalso pick up on spinning dust particles emitting at these frequencies. (space.com)
Hope Ishii (University of Hawaii) and colleagues in Hawaii, Lawrence Berkeley National Laboratory, the University of Washington (Seattle), NASA Ames Research Center, and Washington University in St. Louis studied nanometer-sized dust grains in interplanetary dust particles thought to derive from comets. (hawaii.edu)
Hope Ishii and her colleagues obtained two samples of Interplanetary Dust Particles ( IDPs ) collected by NASA in the upper atmosphere. (hawaii.edu)
Most of the particles are extraterrestrial (bits of comets and asteroids), but some are volcanic dust particles, exhaust from solid rocket motors, and other types of earthly aerosols. (hawaii.edu)
Efstathiou, A., & Siebenmorgen, R. 1995, Models of dusty disks including transiently heated particles, in ESO conference on The role of dust in the formation of stars, ed. (aanda.org)
Caselli described dark clouds in which the temperature is so low (6 K) that molecules freeze out onto dust particles and form thick icy mantles, which are composed primarily of water, carbon monoxide, and other molecules and represent the precursors of planets. (nih.gov)

This life-bearing element is also present in interstellar dust, though astronomers are not sure how abundant it is. (universetoday.com)
A new study by a team of Turkish and Australian astronomers has found evidence of grease-like molecules in interstellar dust. (universetoday.com)
They block visible light while emitting infrared light, and thus help determine what astronomers can see while controlling much of the energy balance in the interstellar medium (ISM) by virtue of the absorption and subsequent re-emission at longer wavelengths of light from stars. (scitechdaily.com)
Moreover, astronomers think that at some stage in the evolution of new stars the dust around them will coagulate into large clumps - the first step towards forming planets. (scitechdaily.com)
Harvard-Smithsonian Center for Astrophysics ( CfA ) astronomer Jonathan Slavin and a team of six other astronomers wondered what happens to interstellar dust when it wanders into the solar system and gets close enough to the Sun to fall under the influence of its radiation, winds, and gravity. (scitechdaily.com)
However, until now, technological limitations restricted astronomers to studying cosmic dust associated with galaxies which formed a long time after the Big Bang (when the Universe was at least a billion years old). (ox.ac.uk)
With the advent of the JWST, astronomers have now been able to analyse the composition of cosmic dust during the first billion years of cosmic time, when the initial stages of galaxy evolution took place. (ox.ac.uk)
Professor of Astrophysics Andy Bunker (Department of Physics, University of Oxford), a co-author for the study, explained: 'Astronomers can acquire information about the composition of cosmic dust by observing the wavelengths of light that it blocks. (ox.ac.uk)
However, thanks to NSF-funded astronomers like Doug Finkbeiner of the Harvard-Smithsonian Center for Astrophysics we can now correct for dust reddening and recover a star's intrinsic color. (nsf.gov)
Astronomers can peer into the galaxy and tell that some stars are making dust right now, but other dust might be billions of years old with a long, complicated history of growing, shrinking, freezing and burning as it traveled through space. (nsf.gov)
Therefore, astronomers are trying to figure out whether these explosions are an overall 'source' or 'sink' of interstellar dust grains, and how the competing processes vary between different types of supernovae. (scitube.io)
WR140 episodically puffs out plumes of dust stretching thousands of times the distance from the Earth to the Sun. These dust plumes, produced every eight years, give astronomers a unique opportunity to observe how starlight can affect matter. (spaceandplanetarynewswire.com)
By modelling these effects into the three-dimensional geometry of the dust plume, the astronomers were able to measure to location of dust features in three-dimensional space. (spaceandplanetarynewswire.com)
Using the Very Large Telescope Interferometer (VLTI) in near-infrared light [1], the team of astronomers observed 92 nearby stars to probe exozodiacal light from hot dust close to their habitable zones and combined the new data with earlier observations [2]. (sciencedaily.com)
The images were taken from the European Space Agency's (ESA) Planckspace observatory and give astronomers a new view into the complex physicsthat shape the dust and gas in our Milky Way. (space.com)

Dust absorption and scattering in the silicon K-edge. (u-strasbg.fr)
Astronomer Joel Stebbins investigated eclipsing binaries, and the effects of interstellar dust on light absorption and the perceived colors of galaxies. (nndb.com)
Diffuse interstellar bands (DIBs) are interstellar absorption features that widely exist in the optical and near-infrared wavelength range, for which the origin might be gaseous molecules. (lu.se)

It contains copious but diffuse amounts of gas and dust. (scitechdaily.com)
The main goal of this study is to estimate the far-infrared to sub-millimeter (submm) emissivity of dust in the diffuse local interstellar medium (ISM) and in the intermediate-velocity (IVC) and high-velocity clouds (HVC) of the Galactic halo. (esa.int)
Galactic dust emission for fields with average Hi column density lower than 2 × 10 20 cm -2 is well correlated with 21-cm emission because in such diffuse areas the hydrogen is predominantly in the neutral atomic phase. (esa.int)
The goal of this project is to build a coherent database on interstellar dust emission from diffuse clouds to the sites of star formation. (u-psud.fr)

This paper presents the first results from a comparison of Planck dust maps at 353, 545 and 857GHz, along with IRAS data at 3000 (100 micronm) and 5000GHz (60 micronm), with Green Bank Telescope 21-cm observations of Hi in 14 fields covering more than 800deg 2 at high Galactic latitude. (esa.int)
Here we report the detection of 2-4M of cold dust in the youngest known Galactic supernova remnant, Cassiopeia A. This observation implies that supernovae are at least as important as stellar winds in producing dust in our Galaxy and would have been the dominant source of dust at high redshifts. (cardiff.ac.uk)
These results are compatible with expectations for clouds that are part of the Galactic fountain in which there is dust shattering and fragmentation. (vtt.fi)
The models were used to fit the spectra of nine low-mass X-ray binaries located in the Galactic center neighborhood in order to determine the dust properties along those lines of sight. (u-strasbg.fr)
DIBs play an important role in the lifecycle of the interstellar medium and can also be used to trace the interstellar environment and the Galactic structure. (lu.se)

The brighter fields in our sample, with an average Hi column density greater than 2 × 10 20 cm -2 , show significant excess dust emission compared to the Hi column density. (esa.int)
Dust emission from IVCs is detected with high significance by this correlation analysis. (esa.int)
In the sites directly observable from Earth, around 60-70% of the interstellar ice consists of water, which displays a strong emission at 3.05 μm from stretching of the O-H bond. (wikipedia.org)
Summary of the paper 'SOFIA/HAWC + observations of the Crab Nebula: dust properties from polarized emission', in Monthly Notices of the Royal Astronomical Society. (scitube.io)
Unexpected anti-correlated variations of the dust temperature and emission cross-section per H atom are identified in the local ISM and IVCs, a trend that continues into molecular environments. (vtt.fi)
Exozodiacal dust emission, even at low levels, makes it significantly harder to detect Earth-like planets with direct imaging. (sciencedaily.com)
We combine the Herschel and Spitzer maps to derive at each position the full emission spectrum of all dust components, which we compare to dust and radiative transfer models in order to learn about the spatial variations in both the excitation conditions and the dust properties. (u-psud.fr)
Methods: We adjust the emission spectra derived from PACS and SPIRE maps using modified black bodies to derive the temperature and the emissivity index $\beta$ of the dust in thermal equilibrium with the radiation field. (u-psud.fr)
The nearby Chamaeleon clouds have been observed in γ rays by the Fermi Large Area Telescope (LAT) and in thermal dust emission by Planck and IRAS. (princeton.edu)

These dust grains, produced through various processes such as supernovae explosions, play a crucial role in the evolution of the Universe, acting as the birthplaces for new stars and planets. (ox.ac.uk)
Co-author Dr Aayush Saxena (Department of Physics, University of Oxford) added: 'The formation processes of interstellar dust are uncertain, but it is generally believed that supernovae (exploding stars) and evolved stars play a major role in the dust production. (ox.ac.uk)
The dynamics of dust grains in turbulent flows plays an important role in many astrophysical processes. (aps.org)
This suggests that dust growth through aggregation, seen in molecular clouds, is active much earlier in the cloud condensation and star formation processes. (vtt.fi)
The images show three physical processes taking place in thedust and gas of the interstellar medium. (space.com)
Our study provides a small piece of the puzzle in our quest to understand the physical processes in supernovas and the interstellar medium. (ltu.se)
Mineral intergrowths in cosmic dust and primitive meteorites reveal processes that operated in interstellar space and in the protoplanetary disk surrounding the Sun before the planets formed. (hawaii.edu)

We welcome this additional, direct confirmation that comets could provide transportation for interstellar panspermia. (panspermia.org)

Thanks to the advent of modern astronomy, scientists have since learned that these elements are not only abundant in other star systems and parts of the galaxy, but also in the medium known as interstellar space. (universetoday.com)
Dust is not a very glamorous name for something this important," said Glen Langston, an NSF astronomy program director. (nsf.gov)
In a complementary study of WR140, published in Nature Astronomy, NASA's James Webb Space Telescope (JWST) was able to see much deeper to snap an image of not just a single accelerating dust plume, but almost 20 of them, nested inside each other like a giant set of onion skins. (spaceandplanetarynewswire.com)
Question: Which branch of astronomy has used electromagnetic radiation with wavelengths from about one micrometre to one millimetre to gather information on star formation and on interstellar gas and dust? (britannica.com)

At present, it is believed that half of the interstellar carbon exists in pure form, whereas the rest in bound up in either grease-like aliphatic molecules (carbon atoms that form open chains) and mothball-like aromatic molecules (carbon atoms that form planar unsaturated rings). (universetoday.com)
To determine how plentiful grease-like molecules are compared to aromatic ones, the team created material with the same properties as interstellar dust in a laboratory. (universetoday.com)
Dust is also essential to the chemistry that takes place in the ISM because it provides gas molecules with a surface on which to react with other molecules. (scitechdaily.com)
For one particular galaxy, the analysis showed a prominent dip in the light around this wavelength, which indicates that dust grains made of carbon molecules are present in the gas within this galaxy. (ox.ac.uk)

Potentially, these may have been produced by early supernovae explosions or Wolf-Rayet stars: very hot stars that tend to live fast and die young, giving enough time for generations of stars to have distributed carbon-rich grains into the surrounding cosmic dust in under a billion years. (ox.ac.uk)
As massive stars evolve rapidly, on timescales of a few Myr, these supernovae could be responsible for the high-redshift dust. (cardiff.ac.uk)
Cosmic rays, supernovae, and the interstellar medium. (wikipedia.org)
When massive stars have exhausted all their fuel, they can end their lives in colossal explosions named supernovae, flinging material far into interstellar space. (scitube.io)
As such, supernovae can lead to both the creation and destruction of interstellar dust grains. (scitube.io)
To answer these questions, scientists need to determine the sizes and compositions of dust grains when observing the remnants of supernovae, at different stages. (scitube.io)
The team's discovery offers important evidence for the origins of interstellar dust grains, along with new clues about how star systems form from the remnants of supernovae. (scitube.io)

The features in the Si K-edge offer a range of possibilities to study silicon-bearing dust, such as investigating the crystallinity, abundance, and the chemical composition along a given line of sight. (u-strasbg.fr)

Further, as a result of these transformations, the PAHs lose their spectroscopic signature which could be one of the reasons "for the lack of PAH detection in interstellar ice grains, particularly the outer regions of cold, dense clouds or the upper molecular layers of protoplanetary disks. (wikipedia.org)
Nevertheless, we find evidence for a marked rise in A VQ /N H with increasing N H and molecular fraction, and with decreasing dust temperature. (princeton.edu)
Our Solar System formed when dust and gas collapsed from a huge interstellar molecular cloud. (hawaii.edu)

Although dust only makes up about 1 percent of the interstellar medium (the stuff between the stars), it can have big effects on astronomical observations. (nsf.gov)
Interstellar ice consists of grains of volatiles in the ice phase that form in the interstellar medium. (wikipedia.org)
Gas-to-dust ratio variations across interstellar medium phases. (nature.com)
In a larger perspective, the dust from the supernova will enrich the interstellar medium 2 with small grains like normal interstellar grains. (ltu.se)
2 = the interstellar medium is the matter, mainly in the form of gas, plasma and space dust, which is found between the stars in the universe. (ltu.se)

In interstellar space there are cold clouds that contain gas and dust, and according to some theories, most of the dust are from the supernova remnants. (ltu.se)
Dust grains from supernova remnants are thus an important source of interstellar dust, says Tiia Grenman. (ltu.se)

The study, published this week in Nature , not only sheds light on the composition of early cosmic dust, but may also provide valuable insights into the formation of stars and planets. (ox.ac.uk)
The formation of water can occur on dust grain surfaces, and can impact gas phase composition. (aanda.org)
The composition of interstellar ice can be determined through its infrared spectrum. (wikipedia.org)
What is stellar dust, its composition, properties etc. (physicsforums.com)
The composition and properties of interstellar silicate dust are not well understood. (u-strasbg.fr)

This light is starlight reflected from dust created as the result of collisions between asteroids, and the evaporation of comets. (sciencedaily.com)
Bright exozodiacal light, created by the glowing grains of hot exozodiacal dust, or the reflection of starlight off these grains, was observed around nine of the targeted stars. (sciencedaily.com)
and an estimate of the dust extinction, A VQ , empirically corrected for the starlight intensity. (princeton.edu)
The longer the wavelength the older the light, and unlike visible starlight, infrared radiation can permeate clouds of dust and gas. (nih.gov)

The dust was composed of amorphous (non-crystalline) silicates, carbon, and assorted ices. (hawaii.edu)

Near-infrared imagery of WR140's expanding circumstellar dust structure. (spaceandplanetarynewswire.com)

The resulting dust extinction profiles serve as templates for the interstellar extinction that we observe. (u-strasbg.fr)
The extinction profiles were used to model the interstellar dust in the dense environments of the Galaxy. (u-strasbg.fr)

An object with interstellar velocity passed inside the orbit of Mercury in September, 2017. (panspermia.org)
One with interstellar velocity should reach perihelion around December 10th. (panspermia.org)

The mantles of interstellar ice grains are generally amorphous, becoming crystalline only in the presence of a star. (wikipedia.org)

A distributed search by volunteers for interstellar dust in the Stardust Interstellar Dust Collector. (berkeley.edu)
Regardless of startling new developments in AI, human experts will always be needed to identify interstellar dust captured in the Stardust interstellar dust collector. (berkeley.edu)

They then followed up on this by expanding the carbon-containing plasma into a vacuum at low temperatures to simulate interstellar space. (universetoday.com)
It's dirty, likely toxic and only forms in the environment of interstellar space (and our laboratory). (universetoday.com)
In a newly published study, a team of scientists report the results of their theoretical models of the behavior of interstellar dust grains as the Sun moves through space. (scitechdaily.com)
An international team involving four University of Oxford researchers has harnessed the exquisite sensitivity of the James Webb Space Telescope (JWST) to achieve the first precise characterisation of interstellar dust during the early stages of the Universe. (ox.ac.uk)
Since I started dusting the whole technology is interesting .I have learnt finding interstellar dust or just getting those images and sending Aerogel tiles + Al foil in a space craft to the cosmos is amazing yet really faces lots of challenges this experiment gives no way but just a close look at that! (berkeley.edu)
When dying stars explode, they expel dust out into space that can be recycled to make something new. (nsf.gov)
In interstellar space, dust if fine grains of minerals from way back when elements were formed. (physicsforums.com)
This composite image, shot from the James Webb Space Telescope's MIRI and NIRCam instruments, shows the bright clusters of stars and dust from barred spiral galaxy NGC 5068. (cnn.com)
The dust will eventually end up in the surrounding space. (ltu.se)
That the globules in the Crab Nebula have twice the dust than the one derived for another supernova remnant, SNR 1987A, and that the dust is ejected into the surrounding interstellar space. (ltu.se)
Citation: Taylor, G. J. (July, 2018) Minerals Track Chemical Reactions in Interstellar Space and in the Protoplanetary Disk, PSRD, http://www.psrd.hawaii.edu/July18/mineral-intergrowths.html. (hawaii.edu)
Ishii and colleagues conclude that the grains formed in interstellar space and survived their incorporation into comets, giving us samples of the materials from which our Solar System (including us) formed. (hawaii.edu)
Once in space, the Webb telescope's 18-segmented gold mirror will unfold to capture infrared light from the first galaxies that formed in the early universe and will help the telescope peer inside dust clouds where stars and planetary systems are forming today. (nih.gov)
If people at high risk have to travel to an area where this fungus is common, they should avoid places with a lot of dust, use a mask, and stay in an enclosed space with the windows closed in the event of a sandstorm. (medscape.com)

But the Planck observatory scans the universe at longmicrowave wavelengths, allowing it to peer through the dust at the newbornstars, as well as study the background radiation of the universe. (space.com)
At higher frequencies, Planck maps the sparse amount of heatgiven out by extremely cold dust. (space.com)

The signals they detected strongly hinted at the presence of large, aligned dust grains in the Crab Nebula, which are rich in both carbon and silicates. (scitube.io)

Another Interstellar Visitor Is Headed Our Way by Bob King, Sky & Telescope, 11 Sep 2019. (panspermia.org)
VISTA is a near-infrared telescope, and infrared light is not blocked by the dust. (universetoday.com)

By establishing the amount of each type of carbon in interstellar dust, they will be able to place constraints on how much of this elements is available in our galaxy. (universetoday.com)
This image highlights the location of the galaxy JADES-GS-z6, where the observation of carbon-rich dust grains was made. (ox.ac.uk)
Recent discoveries, such as that of a very young galaxy containing much more dust than expected, have shown us that we still have much to learn about where exactly all this dust comes from. (nsf.gov)
Knowing where dust is, and where it isn't, gives us a better understanding of what's happening in our galaxy. (nsf.gov)

A new study investigates what happens to interstellar dust that encounters the solar system and the Sun's heliosphere. (scitechdaily.com)
Besides providing important new information on dust grains in the solar system, the new results suggest that radiation from these intermediate-sized grain structures could contaminate the images of the sky used to measure the cosmic backgrounds. (scitechdaily.com)
Ice and dust grains form the primary material out of which the Solar System was formed. (wikipedia.org)
In contrast to earlier observations the team did not observe dust that will later form into planets, but dust created in collisions between small planets of a few kilometres in size -- objects called planetesimals that are similar to the asteroids and comets of the Solar System. (sciencedaily.com)
Dust of this kind is also the origin of the zodiacal light in the Solar System. (sciencedaily.com)
The international Cassini spacecraft has detected the faint but distinct signature of dust coming from outside our Solar System. (esa.int)
A significant, but unquantified fraction of the dust was melted, vaporized, and crystallized during formation of our Solar System, but rare grains were preserved in the frigid far reaches of the Solar System and deposited into comets. (hawaii.edu)

The presence of such large amounts of dust in the inner regions around some stars may pose an obstacle to the direct imaging of Earth-like planets in the future. (sciencedaily.com)
It should be noted that the majority of people who inhale these spores never get sick, even if they inhale large amounts of dust and spores. (medscape.com)

About 1% of the mass of this interstellar material, quite a lot in astronomical terms, is in the form of tiny dust grains made predominantly of silicates (sand too is made of silicates), though some grains are also composed of carbon and other elements. (scitechdaily.com)
Not least, dust contains a large fraction of many important elements in the universe like silicon, carbon, and iron. (scitechdaily.com)
For instance, we know that carbon-rich dust grains can be particularly efficient at absorbing ultraviolet light with a wavelength of around 217.5 nanometres. (ox.ac.uk)

Dust may seem like an odd thing to dedicate an astronomical career to but "dust is not as obscure as it sounds," Finkbeiner said. (nsf.gov)
But every part of the sky has at least some dust, and even a tiny amount of dust can interfere with astronomical measurements, so we need a way to correct for it. (nsf.gov)

In the Crab Nebula, Dr Chastenet and his collaborators searched for characteristic frequencies of infrared light emitted by elongated dust grains. (scitube.io)
Finally, we presented a theory of the globules origin where embryos to dust grains formed in the gas bubbles, turbulent cells, in the atmosphere of a giant star that exploded and caused the Crab Nebula. (ltu.se)

These unique observations, however, point towards a much quicker dust production channel, perhaps related to stellar winds in very young and massive stars. (ox.ac.uk)
This might alleviate the tension among observations of dust in the very early Universe and dust production timescales. (ox.ac.uk)
On dust grains, H 2 O is an important constituent of the icy mantle in which a complex chemistry is taking place, as revealed by hot core observations. (aanda.org)
Detecting faint dust close to the dazzling central star requires high resolution observations with high contrast. (sciencedaily.com)

Vast, dense clouds of dust and gas block our view of many regions of the universe. (nasa.gov)
Stars are born from condensing clouds of dust and gas. (nasa.gov)

We present a first modeling of the NGC 7023-E PDR with standard dust properties and abundances. (u-psud.fr)

This adsorption occurs at the characteristic frequencies of vibration of the gas and dust. (wikipedia.org)

Some researchers are delving deep down to see how dust comes together at the atomic level, while others are looking at the big picture to see where stars and planets might be forming in dusty stellar nurseries. (nsf.gov)
Dust has a bad reputation because it gets in the way by absorbing and scattering the visible light from objects such as far-off galaxies and stars, making them difficult or impossible to observe with optical telescopes. (nsf.gov)
Using data from almost 1 billion stars, Finkbeiner, along with student Gregory Green and former student Edward Schlafly, created a 3-D map of interstellar dust reddening across three quarters of the visible sky. (nsf.gov)
These dust grains may eventually clump together under gravity to form new stars, planets, moons, and asteroids. (scitube.io)
Researchers from the universities of Cambridge and Sydney made the observation when tracking a giant plume of dust generated by the violent interactions between two massive stars. (spaceandplanetarynewswire.com)
Instead, the dust forms where the winds from the two stars collide, on the surface of a cone-shaped shock front between them. (spaceandplanetarynewswire.com)
The two stars are not on circular but rather elliptical orbits, and dust production turns on and off as the binary nears and departs the point of closest approach. (spaceandplanetarynewswire.com)
If we want to study the evolution of Earth-like planets close to the habitable zone, we need to observe the zodiacal dust in this region around other stars," said Steve Ertel, lead author of the paper, from ESO and the University of Grenoble in France. (sciencedaily.com)
Detecting and characterising this kind of dust around other stars is a way to study the architecture and evolution of planetary systems. (sciencedaily.com)
By analysing the properties of the stars surrounded by a disc of exozodiacal dust, the team found that most of the dust was detected around older stars. (sciencedaily.com)
Stars typically form in cosmic nurseries hidden behind veilsof interstellar dust. (space.com)
This star cluster, which Hubble zoomed in on in the image above, holds thousands of young stars that sparkle through the smoky waves of gas and dust that make up the Lagoon. (astronomy.com)

We show that grain surface chemistry has a strong impact on gas phase chemistry, and that this chemistry is very different for different dust grain temperatures. (aanda.org)
Astrochemistry fundamentally starts with the formation of the ion H 3 + , the most important ion in interstellar chemistry, Caselli said. (nih.gov)

The mapping of the PDRs in NGC 7023 performed during the science demonstration phase of Herschel is part of the "Evolution of interstellar dust" key program. (u-psud.fr)

But it is obscured by clouds of interstellar gas and dust, which makes it hard for optical telescopes to get a good look at it. (universetoday.com)

The Horsehead nebula, so-called because at highmagnifications its pillar of dust resembles a horse's head, stands out justright of the photo's center. (space.com)
Roiling clouds of interstellar gas and dust give a smoky appearance to this nearby nebula. (astronomy.com)

As this ejected material cools, it can coalesce to form interstellar dust grains. (scitube.io)

For example, an area saturated with dust may indicate a hotbed of star formation activity, while holes in an otherwise dusty area tell us that a supernova may have occurred and blown a pocket of dust away. (nsf.gov)
Han and his team found that the dust does not stream out from the star with the wind in a hazy ball. (spaceandplanetarynewswire.com)
Where strong exozodical light was present they were able to fully resolve the extended discs of dust, and separate their faint glow from the dominant light of the star [3]. (sciencedaily.com)
We notice that continuing low-mass star formation is concentrated along dust filaments. (nature.com)
The bow shock is created by winds that flow from the star, making ripples in the surrounding dust. (nasa.gov)
They used interstellar dust to mask the star light so the 100km asteroid became clearly visible. (bbc.com)

and (iii) probe the dust properties per gas nucleon in each phase and map their spatial variations across the clouds. (princeton.edu)

The dust and cosmic rays both reveal large amounts of DNM gas, with comparable spatial distributions and twice as much mass as in the CO-bright clouds. (princeton.edu)

It all depends on what kind of dust you mean. (physicsforums.com)

As these grains are thought to be more resilient to shocks, this could mean that individual supernova events contribute a significant portion of the total dust budget of their host galaxies. (scitube.io)

Its spectral properties are consistent with, compared to the local ISM values, significantly hotter dust (T ~ 20 K), lower submm dust opacity normalized per H-atom, and a relative abundance of very small grains to large grains about four times higher. (esa.int)
We provide average values for the dust properties per gas nucleon in the different phases. (princeton.edu)

[7] The first successful published direct measurements of an object at interstellar distances were undertaken by German astronomer Friedrich Wilhelm Bessel in 1838, who used this approach to calculate the 3.5-parsec distance of 61 Cygni . (wikipedia.org)

From measurements at various wavelengths, we were able to show that the grain size is the same as the interstellar grains. (ltu.se)

Chemicals and Drugs2

Phenomena and Processes1

Particles13

Astronomers15

Absorption3

Diffuse4

Galactic5

Emission9

Processes7

Panspermia1

Astronomy4

Molecules4

Supernovae7

Line of Si1

Molecular3

Medium5

Supernova remnants2

Composition5

Starlight4

Ices1

Circumstellar1

Extinction2

Velocity2

Mantles1

Stardust2

Space14

Planck2

Aligned dust grains1

Telescope2

Galaxy4

Solar system7

Amounts of dust2

Carbon3

Astronomical2

Crab Nebula2

Observations4

Clouds of dust and gas2

Abundances1

Frequencies1

Stars12

Chemistry2

Evolution1

Optical telescopes1

Nebula2

Form1

Star6

Variations1

Cosmic rays1

Kind of dust1

Galaxies1

Properties2

Distances1

Measurements1