English
Related papers

Related papers: Grain Growth and Density Distribution of the Young…

200 papers

In this analysis we illustrate how the relatively new emission mechanism known as spinning dust can be used to characterize dust grains in the interstellar medium. We demonstrate this by using spinning dust emission observations to…

The small grain sizes produced by Type II supernova (SN II) models in young, metal-poor galaxies make the appearance of their infrared (IR) spectral energy distribution (SED) quite different from that of nearby, older galaxies. To study…

Protostellar disks are a ubiquitous part of the star formation process and the future sites of planet formation. As part of the Early Planet Formation in Embedded Disks (eDisk) large program, we present high-angular resolution dust…

Emission from protostars at centimeter radio wavelengths has been shown to trace the free-free emission arising from ionizing shocks as a result of jets and outflows driven by protostars. Therefore, measuring properties of protostars at…

We present a 1.3 mm continuum survey of protoplanetary disks in the 2-3 Myr old cluster, IC348, with the Submillimeter Array. We observed 85 young stellar objects and detected 10 with 1.3 mm fluxes greater than 2 mJy. The brightest source…

Solar and Stellar Astrophysics · Physics 2015-05-28 Nicholas Lee , Jonathan P. Williams , Lucas A. Cieza

We make use of ALMA continuum observations of $15$ luminous Lyman-break galaxies at $z$$\sim$$7$$-$$8$ to probe their dust-obscured star-formation. These observations are sensitive enough to probe to obscured SFRs of $20$ $M_{\odot}$$/$$yr$…

High dynamic range imaging of submillimeter dust emission from the envelopes of eight young protostars in the Taurus and Perseus star-forming regions has been carried out using the SCUBA submillimeter camera on the James Clerk Maxwell…

Astrophysics · Physics 2009-10-31 Claire J. Chandler , John S. Richer

The formation process of binary stars and multiple systems is poorly understood. Here, we seek to determine the typical outcome of protostellar collapse and to constrain models of binary formation by core fragmentation during collapse,…

Astrophysics of Galaxies · Physics 2015-05-18 A. J. Maury , Ph. Andre , P. Hennebelle , F. Motte , D. Stamatellos , M. Bate , A. Belloche , G. Duchene , A. Whitworth

The X-ray regime is a largely underused resource for constraining interstellar dust grain models and improving our understanding of the physical processes that dictate how grains evolve over their lifetimes. This is mostly due to current…

Dust grains are the building {blocks} of future planets. They evolve in size, shape and composition during the life cycle of the interstellar medium. We seek to understand the process which leads from diffuse medium grains to dust grains in…

Astrophysics of Galaxies · Physics 2020-02-12 Charlène Lefèvre , Laurent Pagani , Bilal Ladjelate , Michiel Min , Hiroyuki Hirashita , Robert Zylka

Determination of the composition and size distribution of dust grains in debris discs is strongly dependent on constraining the underlying spatial distribution of that dust through multi-wavelength, spatially resolved imaging spanning…

Earth and Planetary Astrophysics · Physics 2025-12-16 J. P. Marshall , S. Hengst , R. Young , F. Kemper , L. Matrà , N. Pawellek , H. Kobayashi , P. Scicluna , S. T. Zeegers

We present a 3 mm spectral line and continuum survey of L1451 in the Perseus Molecular Cloud. These observations are from the CARMA Large Area Star Formation Survey (CLASSy), which also imaged Barnard 1, NGC 1333, Serpens Main and Serpens…

Dust is known to drift and grow in protoplanetary discs, which results in dust segregation over the disc extent. Maps of the spectral index $\alpha$ are a common tool for studying the dust content in protoplanetary discs. The analysis of…

Instrumentation and Methods for Astrophysics · Physics 2019-04-17 Yaroslav Pavlyuchenkov , Vitaly Akimkin , Dmitri Wiebe , Eduard Vorobyov

We examine the hypothesis that the red near-infrared colors of some L dwarfs could be explained by a "dust haze" of small particles in their upper atmospheres. This dust haze would exist in conjunction with the clouds found in dwarfs with…

Solar and Stellar Astrophysics · Physics 2016-10-26 Kay Hiranaka , Kelle L. Cruz , Stephanie T. Douglas , Mark S. Marley , Vivienne F. Baldassare

We present results from a dual narrow-band imaging survey targeting the CL1604 supercluster at z = 0.9 using the Subaru Telescope. By combining the NB921 filter on HSC and the NB1244 filter on SWIMS, we can detect redshifted H$\alpha$ and…

The dust properties in high-redshift galaxies provide clues to the origin of dust in the Universe. Although dust has been detected in galaxies at redshift $z>7$, it is difficult to constrain the dominant dust sources only from the total…

Astrophysics of Galaxies · Physics 2019-10-02 Hsin-Min Liu , Hiroyuki Hirashita

X-ray scattering is a powerful probe of the optical constants and grain size distribution of interstellar dust. Bright, transient sources are excellent tools for this, since they fade rapidly, leaving only the expanding scattered x-ray…

High Energy Astrophysical Phenomena · Physics 2025-09-03 Albert Sneppen , Darach Watson

We present opacity sampling model atmospheres, synthetic spectra and colors for brown dwarfs and very low mass stars in two limiting case of dust grain formation: 1) inefficient gravitational settling i.e. the dust is distributed according…

Context: The R CrA cloud hosts a handful of Class 0/I low-mass young stellar objects. The chemistry and physics at scales $>500$ AU in this cloud are dominated by the irradiation from the nearby Herbig Be star R CrA. The luminous…

The spatial distribution of gas and solids in protoplanetary disks determines the composition and formation efficiency of planetary systems. A number of disks show starkly different distributions for the gas and small grains compared to…

Solar and Stellar Astrophysics · Physics 2016-12-07 L. Ilsedore Cleeves , Karin I. Öberg , David J. Wilner , Jane Huang , Ryan A. Loomis , Sean M. Andrews , Ian Czekala