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相关论文: An infrared study of local galaxy mergers

200 篇论文

We use a sample of 9397 low z galaxies with a close companion to investigate the connection between mergers and luminous infra-red (IR) galaxies (LIRGs). The pairs are selected from the SDSS and have projected separations rp < 80 kpc,…

宇宙学与河外天体物理 · 物理学 2015-06-12 Sara L. Ellison , J. Trevor Mendel , Jillian M. Scudder , David R. Patton , Michael J. D. Palmer

We study the morphology and star formation properties of 159 local luminous infrared galaxy (LIRG) using multi-color images from Data Release 2 (DR2) of the Sloan Digital Sky Survey (SDSS). The LIRGs are selected from a cross-correlation…

天体物理学 · 物理学 2010-11-11 J. L. Wang , X. Y. Xia , S. Mao , C. Cao , Hong Wu , Z. G. Deng

We analyze the morphological properties of a large sample of 1503 70 micron selected galaxies in the COSMOS field spanning the redshift range 0.01<z< 3.5 with a median redshift of 0.5 and an infrared luminosity range of 10^8<L_IR<10^14L_sun…

Using data from the DEEP2 Galaxy Redshift Survey and HST/ACS imaging in the Extended Groth Strip, we select nearly 100 interacting galaxy systems including kinematic close pairs and morphologically identified merging galaxies. Spitzer MIPS…

We report mid-infrared observations of several luminous infrared galaxies (LIGs) carried out with the Infrared Space Observatory. Our sample was chosen to represent different phases of a merger sequence of galaxy-galaxy interaction with…

天体物理学 · 物理学 2015-06-24 Chorng-Yuan Hwang , K. Y. Lo , Yu Gao , Robert A. Gruendl , Nanyao Y. Lu

This work studies the environments and star formation relationships of local luminous infrared galaxies (LIRG) in comparison to other types of local and distant (z~1) galaxies. The infrared (IR) galaxies are drawn from the IRAS sample. The…

宇宙学与河外天体物理 · 物理学 2015-05-27 Abiy G. Tekola , Petri Vaisanen , Andreas Berlind

We present a new, detailed analysis of the morphologies and molecular gas fractions for a complete sample of 65 local luminous infrared galaxies (LIRGs) from the Great Observatories All-Sky LIRG Survey (GOALS) using high resolution $I$-band…

It has long been thought that there is a connection between ultraluminous infrared galaxies (ULIRGs), quasars, and major mergers. Indeed, simulations show that major mergers are capable of triggering massive starbursts and quasars. However,…

宇宙学与河外天体物理 · 物理学 2015-06-05 Aden R. Draper , David R. Ballantyne

The extreme infrared (IR) luminosity of local luminous and ultra-luminous IR galaxies (U/LIRGs; 11 < log LIR /Lsun < 12 and log LIR /Lsun > 12, respectively) is mainly powered by star-formation processes triggered by mergers or…

We have investigated optical properties of 4248 infrared galaxies (IRGs) by positionally matching data from the IRAS and the SDSS DR3. Our sample includes 3 hyper luminous infrared galaxies (L >10^13Lsun) and 178 ultra luminous infrared…

天体物理学 · 物理学 2009-11-10 Tomotsugu Goto

We investigate the fraction of starbursts, starburst-AGN composites, Seyferts, and LINERs as a function of infrared luminosity (L_IR) and merger progress for ~500 infrared-selected galaxies. Using the new optical classifications afforded by…

宇宙学与河外天体物理 · 物理学 2014-11-20 T. -T. Yuan , L. J. Kewley , D. B. Sanders

(Abridged) We examine the power source of 41 local Ultraluminous Infrared Galaxies using archival infrared and optical photometry. We fit the observed Spectral Energy Distributions (SEDs) with starburst and AGN components; each component…

天体物理学 · 物理学 2008-11-26 D. Farrah , J. Afonso , A. Efstathiou , M. Rowan-Robinson , M. Fox , D. Clements

The interstellar medium is a key ingredient that governs star formation in galaxies. We present a detailed study of the infrared (~ 1-500 micron) spectral energy distributions of a large sample of 193 nearby (z ~ 0.088) luminous infrared…

星系天体物理 · 物理学 2019-01-23 Jinyi Shangguan , Luis C. Ho , Ruancun Li , Ming-Yang Zhuang , Yanxia Xie , Zhihui Li

Spectroscopic observations of a sample of 73 very luminous IRAS galaxies (log(LIR/Lsun)>=11.5 for H0=50km s^{-1} Mpc^{-1},q0=0.5) from the 2Jy red- shift survey catalogue were carried out using the 2.16m telescope at the Beijing…

天体物理学 · 物理学 2007-05-23 H. Wu , Z. L. Zou , X. Y. Xia , Z. G. Deng

We use a novel method to predict the contribution of normal star-forming galaxies, merger-induced bursts, and obscured AGN, to IR luminosity functions (LFs) and global SFR densities. We use empirical halo occupation constraints to populate…

宇宙学与河外天体物理 · 物理学 2010-04-01 Philip F. Hopkins , Joshua D. Younger , Christopher C. Hayward , Desika Narayanan , Lars Hernquist

By combining the 0.12 square degree F814W Hubble Space Telescope (HST) and Spitzer MIPS 24 micron imaging in the First Look Survey (FLS), we investigate the properties of interacting and merging Mid-Infrared bright and faint sources at 0.2<…

We analyse a Far InfraRed (FIR) catalogue of galaxies at 60 microns with a flux limit of approx. 110 mJy, extracted from a deep subsample of the IRAS Faint Source Survey. Monte-Carlo simulations and optical identification statistics are…

天体物理学 · 物理学 2007-05-23 E. Bertin , M. Dennefeld , M. Moshir

We perform photometric measurements on a large HST snapshot imaging survey sample of 97 ultraluminous infrared galaxies (ULIRGs). We select putative nuclei from bright clumps in all the sample targets, mainly based on a quantitative…

天体物理学 · 物理学 2009-11-06 J. Cui , X. -Y. Xia , Z. -G. Deng , S. Mao , Z. -L. Zou

Binary merging constitutes a complementary mode of galaxy evolution to the canonical hierarchical clustering theory. This merger-driven evolution not only influences the galaxy mass distribution function, but may drive the main galactic…

天体物理学 · 物理学 2007-05-23 Yiping Wang , Peter L. Biermann

We use the Herschel/PACS spectrometer to study the global and spatially resolved far-infrared (FIR) fine-structure line emission in a sample of 52 galaxies that constitute the SHINING survey. These galaxies include star-forming,…

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