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High spatial and spectral resolution observations of the atomic interstellar medium in nearby dwarf galaxies reveal evidence for warm and cold neutral gas, just like the phases in our own Galaxy. The cold or quiescent phase (about 20% of…

Astrophysics · Physics 2009-04-13 L. M. Young , L. van Zee , R. C. Dohm-Palmer , K. Y. Lo

Star formation in interacting systems may take place in various locations, from the dust--enshrouded core of Ultraluminous Infrared Galaxies to more unusual places such as the debris of colliding galaxies expelled into the intergalactic…

We show that the star-forming regions in high-redshift luminous and ultraluminous infrared galaxies (LIRGs and ULIRGs) and submillimeter galaxies (SMGs) have similar physical scales to those in local normal star-forming galaxies. To first…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Wiphu Rujopakarn , George H. Rieke , Daniel J. Eisenstein , Stephanie Juneau

This is the second of two papers presenting a detailed long-slit spectroscopic study of the stellar populations in a sample of 36 ULIRGs. In the previous paper we presented the sample, the data and the spectral synthesis modelling while in…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Javier Rodriguez-Zaurin , C. N. Tadhunter , R. M. Gonzalez-Delgado

New optical HST, Spitzer, GALEX, and Chandra observations of the single-nucleus, luminous infrared galaxy (LIRG) merger IC 883 are presented. The galaxy is a member of the Great Observatories All-sky LIRG Survey (GOALS), and is of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 F. Modica , T. Vavilkin , A. S. Evans , D. C. Kim , J. M. Mazzarella , K. Iwasawa , A. Petric , J. H. Howell , J. A. Surace , L. Armus , H. W. W. Spoon , D. B. Sanders , J. E. Barnes

Starting from a sample of 24 \micron\ sources in the Extended Groth Strip, we use 3.6 to 8 \micron\ color criteria to select ultraluminous infrared galaxies (ULIRGs) at $z\sim2$. Spectroscopy from 20-38 \micron\ of 14 objects verifies their…

Astrophysics of Galaxies · Physics 2015-06-18 Guanwen Fang , Jia-Sheng Huang , S. P. Willner , Xu Kong , Tao Wang , Yang Chen , Xuanbin Lin

We have studied the dynamics and masses of a sample of ten nearby luminous and ultraluminous infrared galaxies (LIRGS and ULIRGs), using 2.3 micron CO absorption line spectroscopy and near-infrared H- and Ks-band imaging. By combining…

Astrophysics · Physics 2008-11-26 Joannah L. Hinz , George H. Rieke

A major recent development in extragalactic astronomy has been the discovery of a population of galaxies that are luminous at submillimetre wavelengths. Estimates of their spectral energy distributions suggest that these galaxies are the…

Astrophysics · Physics 2009-10-31 Neil Trentham , A. W. Blain , Jeff Goldader

Recent observational results on high spatial resolution images of ultra-luminous infrared galaxies (ULIGs) have revealed very luminous, young, compact, and heavily obscured super star clusters in their central regions, suggested to be…

Astrophysics · Physics 2009-11-06 Kenji Bekki , Warrick J. Couch

Intense, compact, star-forming galaxies are rare in the local Universe but ubiquitous at high redshift. We interpret the 0.1-22 um spectral energy distributions (SED) of a sample of 180 galaxies at 0.05<z<0.25 selected for extremely high…

Astrophysics of Galaxies · Physics 2016-04-20 Stephanie M. L. Greis , Elizabeth R. Stanway , Luke J. M. Davies , Andrew J. Levan

Triggered star formation in bright rims and shells is reviewed. Shells are commonly observed in the Milky Way and other galaxies, but most diffuse shells seen in HI or the infrared do not have obvious triggered star formation. Dense…

Astrophysics of Galaxies · Physics 2015-05-27 Bruce G. Elmegreen

Luminous Infrared (IR) Galaxies (LIRGs) are an important cosmological class of galaxies as they are the main contributors to the co-moving star formation rate density of the universe at z=1. In this paper we present a GTO Spitzer IRS…

Recent observations reveal galaxies in the early Universe (2<z<6.4) with large reservoirs of molecular gas and extreme star formation rates. For a very large range of sources, a tight relationship exists between star formation rate and the…

Astrophysics · Physics 2009-11-11 Chris Lintott , Serena Viti

Local luminous infrared (IR) galaxies (LIRGs) have both high star formation rates (SFR) and a high AGN (Seyfert and AGN/starburst composite) incidence. Therefore, they are ideal candidates to explore the co-evolution of black hole (BH)…

We present clustering measurements and halo masses of star forming galaxies at 0.2 < z < 1.0. After excluding AGN, we construct a sample of 22553 24 {\mu}m sources selected from 8.42 deg^2 of the Spitzer MIPS AGN and Galaxy Evolution Survey…

Sometimes the early star formation can be found in cold and dense molecular clouds, such as infrared dark cloud (IRDC). Considering star formation often occurs in clustered condition, HII regions may be triggering a new generation of star…

Astrophysics of Galaxies · Physics 2017-06-07 Chuan-Peng Zhang , Jing-Hua Yuan , Jin-Long Xu , Xiao-Lan Liu , Nai-Ping Yu , Nan Li , Li-Ping He , Guo-Yin Zhang , Jun-Jie Wang

We present infrared luminosities, star formation rates, colors, morphologies, locations, and AGN properties of 24 micron-detected sources in photometrically detected high-redshift clusters in order to understand the impact of environment on…

Cosmology and Nongalactic Astrophysics · Physics 2009-08-05 J. E. Krick , J. A. Surace , D. Thompson , M. L. N. Ashby , J. L. Hora , V. Gorjian , L. Yan

We examine the recent star formation associated with four supergiant shells (SGSs) in the Large Magellanic Cloud (LMC): LMC 1, 4, 5, and 6, which have been shown to have simple expanding-shell structures. H II regions and OB associations…

Solar and Stellar Astrophysics · Physics 2010-12-07 Laura G. Book , You-Hua Chu , Robert A. Gruendl , Yasuo Fukui

Our Galactic Center hosts over 10% of the known massive stars in the Galaxy. The majority of these stars are located in three particularly massive clusters that formed within the past 5 Myr. While these clusters are extraordinary, their…

Astrophysics · Physics 2009-11-07 Donald F. Figer

This paper presents the result of $H\alpha$ imaging for luminous infrared galaxies (LIRGs) and ultra-luminous infrared galaxies (ULIRGs). \textbf{It is } a \textbf{complete subsample of Great Observatories All-sky LIRG Survery (GOALS) with…

Astrophysics of Galaxies · Physics 2019-10-30 Jun-Jie Jin , Yi-Nan Zhu , Hong Wu , Feng-Jie Lei , Chen Cao , Xian-Min Meng , Zhi-Min Zhou , Man I Lam