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

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New star cluster candidates projected toward the Large and Small Magellanic Clouds (L/SMC) have been recently discovered from relatively deep imaging surveys. We here conduct a sound analysis of 24 star cluster candidates located in the…

星系天体物理 · 物理学 2021-03-10 Andrés E. Piatti

We investigate structural, kinematical, and chemical properties of stars and gas in the Small Magellanic Cloud (SMC) interacting with the Large Magellanic Cloud (LMC) and the Galaxy based on a series of self-consistent chemodynamical…

天体物理学 · 物理学 2009-11-13 Kenji Bekki , Masashi Chiba

Using star-forming galaxies sample in the nearby Universe (0.02<z<0.10) selected from the SDSS (DR7) and GALEX all-sky survey (GR5), we present a new empirical calibration for predicting dust extinction of galaxies from H-alpha-to-FUV flux…

We report the first observations of far-ultraviolet (FUV: 1000 -- 1150 \AA) diffuse radiation from the Small Magellanic Cloud (SMC) using observations from the {\em Far Ultraviolet Spectroscopic Explorer (FUSE)}. The strength of FUV diffuse…

宇宙学与河外天体物理 · 物理学 2015-05-30 Ananta C. Pradhan , Jayant Murthy , Amit Pathak

The composition and amount of interstellar dust within gamma-ray burst (GRB) host galaxies is of key importance when addressing selection effects in the GRB redshift distribution, and when studying the properties of their host galaxies. As…

宇宙学与河外天体物理 · 物理学 2015-05-30 P. Schady , T. Dwelly , M. J. Page , T. Krühler , J. Greiner , S. R. Oates , M. De Pasquale , M. Nardini , P. W. A. Roming , A. Rossi , M. Still

Mass loss through a stellar wind is an important physical process that steers the evolution of massive stars and controls the properties of their end-of-life products, such as the supernova type and the mass of compact remnants. For an…

We derive the mean wavelength dependence of stellar attenuation in a sample of 239 high redshift (1.90 < z < 2.35) galaxies selected via Hubble Space Telescope (HST) WFC3 IR grism observations of their rest-frame optical emission lines. Our…

We present results of optical broad-band and narrow-band Halpha observations of a sample of forty nearby early-type galaxies. The majority of sample galaxies are known to have dust in various forms viz. dust lanes, nuclear dust and…

星系天体物理 · 物理学 2014-03-05 Samridhi Kulkarni , D. K. Sahu , Laxmikant Chaware , N. K. Chakradhari , S. K. Pandey

We derive dust masses ($M_{\rm dust}$) from the spectral energy distributions of 58 post-starburst galaxies (PSBs). There is an anticorrelation between specific dust mass ($M_{\rm dust}$/$M_{\star}$) and the time elapsed since the starburst…

星系天体物理 · 物理学 2019-07-24 Zhihui Li , K. Decker French , Ann I. Zabludoff , Luis C. Ho

We present the age distributions for star clusters and individual stars in the Small Magellanic Cloud (SMC) based on data from the Magellanic Clouds Photometric Survey by Zaritsky and collaborators. The age distribution of the SMC clusters…

天体物理学 · 物理学 2011-02-11 Rupali Chandar , S. Michael Fall , Bradley C. Whitmore

We have studied the interstellar extinction in a field of ~3' x 3' at the core of the 30 Doradus nebula, including the central R136 cluster, in the Large Magellanic Cloud. Observations at optical and near-infrared wavelengths, obtained with…

太阳与恒星天体物理 · 物理学 2015-06-22 Guido De Marchi , Nino Panagia

Recent observational studies on galaxies in distant clusters discovered a significant fraction of possible dusty starburst galaxies with the so-called `e(a)' spectra that are characterized by strong H$\delta$ absorption and relatively…

天体物理学 · 物理学 2009-10-31 Yasuhiro Shioya , Kenji Bekki

We use mid-infrared Spitzer spectroscopy and far-infrared Herschel photometry for a sample of twenty main sequence O9--B2 stars in the Small Magellanic Cloud (SMC) with strong 24 micron excesses to investigate the origin of the mid-IR…

We present a new method to evaluate the dust extinction (AV) along the line of sight using the InfraRed Survey Facility (IRSF) near-infrared (NIR) data of the Large Magellanic Cloud (LMC) HI ridge region. In our method, we estimate an AV…

星系天体物理 · 物理学 2021-07-07 Takuya Furuta , Hidehiro Kaneda , Takuma Kokusho , Yasushi Nakajima , Yasuo Fukui , Kisetsu Tsuge

The proximity of the Large and Small Magellanic Clouds (LMC and SMC) provides the opportunity to study the impact of dwarf-dwarf interactions on their mass assembly with a unique level of detail. To this end, we analyze two-filter broadband…

We present a systematic study of the shape of the dust attenuation curve in star-forming galaxies from the far ultraviolet to the near infrared (0.15-2microns), as a function of specific star formation rate (sSFR) and axis ratio (b/a), for…

宇宙学与河外天体物理 · 物理学 2015-05-28 Vivienne Wild , Stephane Charlot , Jarle Brinchmann , Timothy Heckman , Oliver Vince , Camilla Pacifici , Jacopo Chevallard

The Small Magellanic Cloud (SMC) is an irregular dwarf galaxy that has recently undergone an interaction with the Large Magellanic Cloud. The young massive stars in the SMC formed in the disturbed low-metallicity environment are important…

星系天体物理 · 物理学 2024-11-14 Sipra Hota , Annapurni Subramaniam , Prasanta K. Nayak , Smitha Subramanian

We have studied the optical spectra of a sample of 31 O- and early B-type stars in the Small Magellanic Cloud, 21 of which are associated with the young massive cluster NGC 346. Stellar parameters are determined using an automated fitting…

In recent years, significant growth in the amount of data available to astronomers has opened up the possibility to uncover fundamental correlations, linking the dust component of a galaxy to its star formation rate (SFR). In this paper, we…

We have applied the unsharp-masking technique to the 24 $\mu$m image of the Small Magellanic Cloud (SMC), obtained with the Spitzer Space Telescope, to search for high-extinction regions. This technique has been used to locate very dense…