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相关论文: Extended Dust Emission from Nearby Evolved Stars

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The mass loss experienced on the asymptotic giant branch (AGB) at the end of the lives of low- and intermediate-mass stars is widely accepted to rely on radiation pressure acting on dust grains formed in the extended AGB atmospheres. The…

太阳与恒星天体物理 · 物理学 2024-02-22 T. Khouri , H. Olofsson , W. H. T. Vlemmings , T. Schirmer , D. Tafoya , M. Maercker , E. De Beck , L. -Å. Nyman , M. Saberi

We present observations of the spiral galaxy NGC 7331 using the Sub-millimetre Common User Bolometer Array (SCUBA) on the James Clark Maxwell Telescope. We have detected a dust ring of 45 arcsec radius (3.3 kpc) at wavelengths of 450 and…

天体物理学 · 物理学 2009-10-30 S. Bianchi , P. B. Alton , J. I. Davies , M. Trewhella

We present deep observations at 450 um and 850 um in the Extended Groth Strip field taken with the SCUBA-2 camera mounted on the James Clerk Maxwell Telescope as part of the deep SCUBA-2 Cosmology Legacy Survey (S2CLS), achieving a central…

We measure the extent of 100 micron galactic emission in two independent galaxy samples using the IRAS 100 micron Sky Survey images and constrain the distribution of dust at large ($\ltsim$30 kpc) radii. The first sample consists of 90…

天体物理学 · 物理学 2009-10-30 Amy E. Nelson , Dennis Zaritsky , Roc M. Cutri

The AKARI and Spitzer satellites provided an unique opportunity to observe a variety of stars, which are considered as departing from the Asymptotic Giant Branch (AGB) and have started their post-AGB evolution recently. Most of these stars…

太阳与恒星天体物理 · 物理学 2009-04-28 D. Engels , P. García-Lario , F. Bunzel , D. A. García-Hernández , J. V. Perea-Calderón

A follow-up survey using the Submillimetre High-Angular Resolution Camera (SHARC-II) at 350 microns has been carried out to map the regions around several 850 micron-selected sources from the Submillimetre HAlf Degree Extragalactic Survey…

The dust extinction curves toward individual sight lines in M33 are derived for the first time with a sample of reddened O-type and B-type supergiants obtained from the LGGS. The observed photometric data are obtained from the LGGS, PS1…

星系天体物理 · 物理学 2022-06-29 Yuxi Wang , Jian Gao , Yi Ren , Bingqiu Chen

Compared to the well-studied infrared and radio domains, galaxy emission in the millimeter (mm) - centimeter (cm) range has been less observed. In this domain, galaxy emission consists of thermal dust, free-free and synchrotron emissions…

The properties of dust attenuation at rest-frame UV wavelengths are inferred from very high-quality FORS2 spectra of 78 galaxies from the GMASS survey at 1<z<2.5. These objects complement a previously investigated sample of 108 UV-luminous…

We have characterized 26 Spitzer/IRAC-selected sources from the SMUVS program that are undetected in the UltraVISTA DR5 H- and/or Ks-band images, covering 94 square arcmin of the COSMOS field which have deep multiwavelength JWST photometry.…

We present the first detailed study of the spatially-resolved dust continuum emission of simulated galaxies at 1<z<5. We run the radiative transfer code SKIRT on a sample of submillimeter-bright galaxies drawn from the Feedback in Realistic…

We study the predicted sub-mm emission from massive galaxies in a Lambda-CDM universe, using hydrodynamic cosmological simulations. Assuming that most of the emission from newly formed stars is absorbed and reradiated in the rest-frame…

天体物理学 · 物理学 2007-05-23 Mark A. Fardal , Neal Katz , David H. Weinberg , Romeel Davé , Lars Hernquist

We have derived the dust emissivity in the Far-Infrared (FIR) using data available in the literature. We use two wavelength dependences derived from spectra of Galactic FIR emission (Reach et al. 1995). A value for the emissivity,…

天体物理学 · 物理学 2007-05-23 Simone Bianchi , Jonathan I. Davies , Paul B. Alton

The initial mass distribution in the solar nebula is a critical input to planet formation models that seek to reproduce today's Solar System. Traditionally, constraints on the gas mass distribution are derived from observations of the dust…

地球与行星天体物理 · 物理学 2017-05-16 Ke Zhang , Edwin A. Bergin , Geoffrey A. Blake , L. Ilsedore Cleeves , Kamber R. Schwarz

We present Spitzer Space Telescope images of the isolated dwarf galaxy UGC 10445. The galaxy is detected at all photometric bands (3.6-160um) as well as in the Multiband Imaging Photometer for Spitzer (MIPS) spectral energy distribution…

天体物理学 · 物理学 2008-11-26 J. L. Hinz , K. Misselt , M. J. Rieke , G. H. Rieke , P. S. Smith , M. Blaylock , K. D. Gordon

The initial conditions for the mass loss during the asymptotic giant branch (AGB) phase are set in their extended atmospheres, where, among others, convection and pulsation driven shocks determine the physical conditions. High resolution…

太阳与恒星天体物理 · 物理学 2019-06-19 W. H. T. Vlemmings , T. Khouri , H. Olofsson

In this second paper of the Hawaii SCUBA-2 Lensing Cluster Survey series, we cross-match SCUBA-2 maps with 3 and 6 GHz images from the Janksy-VLA Frontier Fields Legacy Survey for three cluster fields, MACS J0416.1--2403, MACS J0717.5+3745,…

星系天体物理 · 物理学 2017-05-10 Li-Yen Hsu , Vandana Desai , Eric Murphy , Lennox Cowie , Ian Heywood , Emmanuel Momjian , Amy Barger , Ian Smail

We present a demographic analysis of the physical and morphological properties of $450/850~\mu\rm m$-selected galaxies from the deep observations of the SCUBA-2 Cosmology Legacy Survey in the Extended Groth Strip that are detected below the…

星系天体物理 · 物理学 2022-10-11 L. Cardona-Torres , I. Aretxaga , A. Montaña , J. A. Zavala , S. M. Faber

Spectral energy distribution (SED) analyses, that include new millimeter (mm) to far-infrared (FIR) observations, obtained with continuum instruments on the Nobeyama and James Clerk Maxwell Telescopes and Infrared Space Observatory (ISO),…

天体物理学 · 物理学 2009-11-10 Lerothodi L. Leeuw , Anne E. Sansom , E. Ian Robson , Martin Haas , Nario Kuno