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相关论文: An infrared study of local galaxy mergers

200 篇论文

We fit the near-infrared to radio spectral energy distributions of 30 luminous and ultra-luminous infrared galaxies with pure starburst models or models that include both starburst and AGN components to determine important physical…

天体物理学 · 物理学 2009-11-13 O. Vega , M. S. Clemens , A. Bressan , G. L. Granato , L. Silva , P. Panuzzo , --

We use HST NICMOS continuum and Pa-alpha observations to study the near-infrared and star-formation properties of a representative sample of 30 local (d ~ 35-75Mpc) luminous infrared galaxies (LIRGs, infrared 8-1000um luminosities of…

天体物理学 · 物理学 2008-11-26 A. Alonso-Herrero , G. H. Rieke , M. J. Rieke , L. Colina , P. G. Perez-Gonzalez , S. D. Ryder

The relation between the star formation rate and the stellar mass of star-forming galaxies has been used to argue that major mergers cannot be the main driver of star formation. Here, we re-examine these arguments using the representative…

星系天体物理 · 物理学 2015-06-19 M. Puech , F. Hammer , M. Rodrigues , S. Fouquet , H. Flores , K. Disseau

We investigate the evolutional and environmental effects on star formation efficiency for more than 400 merging galaxies. The ~400 merging systems, with photometric redshifts smaller than 0.7, are obtained from a catalog of ~15000…

宇宙学与河外天体物理 · 物理学 2015-05-27 Mei-Ling Huang , Chorng-Yuan Hwang

Star-forming galaxies produce gamma-rays primarily via pion production, resulting from inelastic collisions between cosmic ray protons and the interstellar medium (ISM). The dense ISM and high star formation rates of luminous and…

高能天体物理现象 · 物理学 2016-05-25 Rhiannon D. Griffin , Xinyu Dai , Todd A. Thompson

We study the infrared/radio correlation of galaxies in the IRAS Revised Bright Galaxy Sample using new MeerKAT observations at $\rm\nu = 1.28\, GHz$, complemented with VLA data. We classify the objects by primary energy source (Active…

星系天体物理 · 物理学 2025-10-15 M. E. Moloko , L. Marchetti , T. H. Jarrett , J. J. Condon , W. D. Cotton , A. M. Matthews , T. Mauch , M. Vaccari

We present a new catalog of 118 Ultraluminous Infrared Galaxies (ULIRGs) and one Hyperluminous Infrared Galaxy (HLIRG) by crossmatching AKARI all-sky survey with the Sloan Digital Sky Survey Data Release 10 (SDSS DR10) and the Final Data…

星系天体物理 · 物理学 2017-11-20 E. Kilerci Eser , T. Goto , Y. Doi

(Abridged) We present far-infrared (FIR) photometry at 150 micron and 205 micron of eight low-redshift starburst galaxies obtained with the ISO Photometer. Five of the eight galaxies are detected in both wavebands and these data are used,…

天体物理学 · 物理学 2009-07-09 D. Calzetti , L. Armus , R. C. Bohlin , A. L. Kinney , J. Koornneef , T. Storchi-Bergmann

We present a CO(3-2) study of four systems composed of six (ultra) luminous infrared galaxies (U/LIRGs), located at 0.28 < z < 0.44, that straddle the transition region between regular star forming galaxies and starbursts. These galaxies…

(abridged) Studies of distant galaxies have shown that ellipticals and large spirals were already in place 8 Gyr ago, leading to a very modest recent star formation in intermediate mass galaxies. This is challenged by a recent analysis…

天体物理学 · 物理学 2009-11-10 F. Hammer , H. Flores , D. Elbaz , X. Z. Zheng , Y. C. Liang , C. Cesarsky

Recent FIR/submm deep surveys revealed large number of ULIGs, which are proposed to lie at z>1, and in normally interacting systems with very dusty environments. We discussed in a previous paper that a population with a fast evolving…

天体物理学 · 物理学 2009-11-07 Y. P. Wang

Infrared (IR) luminosity is fundamental to understanding the cosmic star formation history and AGN evolution. The AKARI IR space telescope performed all sky survey in 6 IR bands (9, 18, 65, 90, 140, and 160um) with 3-10 times better…

We present a comprehensive study of Ultraluminous Infrared Galaxies (ULIRGs), leveraging data from the IRAS Faint Source Catalogue (FSC) and the spectroscopic catalog in the Sloan Digital Sky Survey (SDSS) DR16. Our meticulous…

星系天体物理 · 物理学 2024-07-09 Shaohua Zhang , Zhijian Luo , Xiheng Shi , Chenggan Shu , Hubing Xiao , Hongyan Zhou

We imaged a set of 15 intermediate redshift (z~0.8) luminous infrared galaxies (LIRGs) with the Keck Laser Guide Star (LGS) AO facility. These galaxies were selected from the GOODS-S field, allowing us to combine the high spatial resolution…

天体物理学 · 物理学 2009-11-13 J. Melbourne , M. Ammons , S. A. Wright , A. Metevier , E. Steinbring , C. Max , D. C. Koo , J. E. Larkin , M. Barczys

We present $HST$ narrow-band near-infrared imaging of Pa$\alpha$ and Pa$\beta$ emission of 48 local Luminous Infrared Galaxies (LIRGs) from the Great Observatories All-Sky LIRG Survey (GOALS). These data allow us to measure the properties…

In the complete sample of ultraluminous infrared galaxies (ULIRGs) compiled by Kim (1995) about 5% consists of widely separated galaxies which are presumably in the early phase of interaction. This fact is contrary to the conventional view…

天体物理学 · 物理学 2009-11-06 Dinh-V-Trung , K. Y. Lo , D. -C. Kim , Yu Gao , R. A. Gruendl

We present new observations made with the IRAM 30m telescope of the J=1-0 and 3-2 lines of HCN and HCO^+ used to probe the dense molecular gas content in a sample of 17 local luminous and ultraluminous infrared galaxies (LIRGs and ULIRGs).…

天体物理学 · 物理学 2009-11-13 J. Gracia-Carpio , S. Garcia-Burillo , P. Planesas , A. Fuente , A. Usero

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…

Ever since their discovery in the 1970's, UltraLuminous InfraRed Galaxies (ULIRGs; classically Lir>10^12Lsun) have fascinated astronomers with their immense luminosities, and frustrated them due to their singularly opaque nature, almost in…

天体物理学 · 物理学 2015-06-24 Carol Lonsdale , Duncan Farrah , Harding Smith

The build up of heavy elements and the stellar mass assembly are fundamental processes in the formation and evolution of galaxies. Although they have been extensively studied through observations and simulations, the key elements that…