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相关论文: Starburst-like Dust Extinction in the Small Magell…

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Hubble Space Telescope ultraviolet (UV) images of nine starburst galaxies reveal them to be highly irregular, even after excluding compact sources (clusters and resolved stars). Most (7/9) are found to have a similar intrinsic effective…

天体物理学 · 物理学 2009-10-28 G. R. Meurer , T. M. Heckman , C. Leitherer , A. Kinney , C. Robert , D. R. Garnett

We analyze the multi-wavelength photometric and spectroscopic data of 12 ultraluminous infrared galaxies (ULIRGs) at z ~ 1 and compare them with models of stars and dust in order to study the extinction law and star formation in young…

宇宙学与河外天体物理 · 物理学 2015-05-28 T. Shimizu , K. Kawara , H. Sameshima , N. Ienaka , T. Nozawa , T. Kozasa

We derive the UV-optical stellar dust attenuation curve of galaxies at z=1.4-2.6 as a function of gas-phase metallicity. We use a sample of 218 star-forming galaxies, excluding those with very young or heavily obscured star formation, from…

We present a study of the composition of gas and dust in the Large and Small Magellanic Clouds (LMC and SMC, together -- the MCs) as measured by UV absorption spectroscopy. We have measured P II and Fe II along 85 sightlines toward the MCs…

Due to their close proximity, the Large and Small Magellanic Clouds (SMC/LMC) provide natural laboratories for understanding how galaxies form and evolve. With the goal of determining the structure and dynamical state of the SMC, we present…

星系天体物理 · 物理学 2020-05-06 Michele De Leo , Ricardo Carrera , Noelia E. D. Noel , Justin I. Read , Denis Erkal , Carme Gallart

We present the results of targeted observations and a survey of 1612-, 1665-, and 1667-MHz circumstellar OH maser emission from asymptotic giant branch (AGB) stars and red supergiants (RSGs) in the Small Magellanic Cloud (SMC), using the…

We present data on the gas phase abundances for 9 different elements in the interstellar medium of the Small Magellanic Cloud (SMC), based on the strengths of ultraviolet absorption features over relevant velocities in the spectra of 18…

星系天体物理 · 物理学 2017-05-09 Edward B. Jenkins , George Wallerstein

We present a dust extinction AV map of the Large Magellanic Cloud (LMC) in the H I ridge region using the IRSF near-infrared (IR) data, and compare the AV map with the total hydrogen column density N(H) maps derived from the CO and H I…

The stars in the Magellanic Clouds with the largest degree of obscuration are used to probe the highly uncertain physics of stars in the asymptotic giant branch (AGB) phase of evolution. Carbon stars in particular, provide key information…

太阳与恒星天体物理 · 物理学 2016-02-17 P. Ventura , A. I. Karakas , F. Dell'Agli , D. A. García-Hernández , M. L. Boyer , M. Di Criscienzo

We observed six fields of the Small Magellanic Cloud (SMC) with the Advanced Camera for Survey on board the Hubble Space Telescope in the F555W and F814W filters. These fields sample regions characterized by very different star and gas…

We present a map of the total intrinsic reddening across ~34 deg$^{2}$ of the Small Magellanic Cloud (SMC) derived using optical ($ugriz$) and near-infrared (IR; $YJK_{\mathrm{s}}$) spectral energy distributions (SEDs) of background…

We derive the physical properties of three WNh stars in the SMC to constrain stellar evolution beyond the main sequence at low metallicity and to investigate the metallicity dependence of the clumping properties of massive stars. We compute…

天体物理学 · 物理学 2009-11-13 F. Martins , D. J. Hillier , J. C. Bouret , E. Depagne , C. Foellmi , S. Marchenko , A. F. Moffat

We apply the supernova(SN) extinction curves to reproduce the observed properties of SST J1604+4304 which is a young infrared (IR) galaxy at z = 1. The SN extinction curves used in this work were obtained from models of unmixed ejecta of…

宇宙学与河外天体物理 · 物理学 2015-05-20 K. Kawara , H. Hirashita , T. Nozawa , T. Kozasa , S. Oyabu , Y. Matsuoka , T. Shimizu , H. Sameshima , N. Ienaka

Stripped stars are hot, helium-rich stars formed when binary interactions remove a star's hydrogen envelope. While low-mass ($\lesssim 1 M_\odot$) and high-mass ($\gtrsim 8 M_\odot$) stripped stars are well studied as hot subdwarfs and…

太阳与恒星天体物理 · 物理学 2026-01-22 Lisa Blomberg , Kareem El-Badry , Bethany Ludwig , Maria Drout , Ylva Gotberg

We present our catalog of U, B, V, and I stellar photometry of the central 18 sq. degree area of the Small Magellanic Cloud. We combine our data with the 2MASS and DENIS catalogs to provide, when available, U through K_S data for stars.…

天体物理学 · 物理学 2011-07-18 Dennis Zaritsky , Jason Harris , Ian B. Thompson , Eva K. Grebel , Philip Massey

We investigate the infrared (IR) properties of cool, evolved stars in the Small Magellanic Cloud (SMC), including the red giant branch (RGB) stars and the dust-producing red supergiant (RSG) and asymptotic giant branch (AGB) stars using…

We recover the spatially resolved star formation history across the entire main body and Wing of the Small Magellanic Cloud (SMC), using fourteen deep tile images from the VISTA survey of the Magellanic Clouds (VMC), in the YJKs filters.…

The dust extinction curve is a critical component of many observational programs and an important diagnostic of the physics of the interstellar medium. Here we present new measurements of the dust extinction curve and its variation towards…

In this paper we aim to constrain for the first time the dust emission in the mid-to-far infrared domain, in the LMC, with the use of the Spitzer IRS and MIPS SED data, combined with Herschel data. We also consider UV extinction predictions…

星系天体物理 · 物理学 2023-06-21 D. Paradis , C. Mény , K. Demyk , A. Noriega-Crespo , I. Ristorcelli

Red supergiants (RSGs) are a He-burning phase in the evolution of moderately high mass stars (10-25 solar masses). The evolution of these stars, particularly at low metallicities, is still poorly understood. The latest-type RSGs in the…

天体物理学 · 物理学 2007-08-23 Emily M. Levesque , Philip Massey , K. A. G. Olsen , Bertrand Plez