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Related papers: Luminous IR Galaxies in a Merger Sequence: BIMA CO…

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We present first results of our on-going BIMA Key Project: imaging the CO(1-0) emission from a sample of 10 luminous IR galaxies (LIRGs) that are at various merging stages, with special emphasis on systems apparently in the…

Astrophysics · Physics 2009-10-28 Yu Gao , Robert A. Gruendl , K. Y. Lo , C. Y. Hwang , S. Veilleux

Most luminous infrared galaxies (LIGs) are closely interacting/merging systems rich in molecular gas. We study here the relationship between the stage of the galaxy-galaxy interactions, the molecular gas mass, and the star formation rate as…

Astrophysics · Physics 2016-08-30 Yu Gao , Philip M. Solomon

We present results on mid-IR (5--16micron) spectral imaging of a sequence of interacting galaxies, observed by ISOCAM. The galaxies are part of the well known Toomre's ``merger sequence'' which was defined as a sample of galaxies depicting…

Astrophysics · Physics 2007-05-23 V. Charmandaris , O. Laurent , I. F. Mirabel , P. Gallais

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…

Astrophysics · Physics 2015-06-24 Chorng-Yuan Hwang , K. Y. Lo , Yu Gao , Robert A. Gruendl , Nanyao Y. Lu

We present an initial result from the 12CO (J=1-0) survey of 79 galaxies in 62 local luminous and ultra-luminous infrared galaxy (LIRG and ULIRG) systems obtained using the 45 m telescope at the Nobeyama Radio Observatory. This is the…

Galaxy mergers are crucial to understanding galaxy evolution, therefore we must determine their observational signatures to select them from large IFU galaxy samples such as MUSE and SAMI. We employ 24 high-resolution idealised…

Luminous infrared galaxies ($L_{\rm{IR}}>10^{11} L_{\odot}$) are often associated with interacting galactic systems and are thought to be powered by merger--induced starbursts and/or dust--enshrouded AGN. In such systems, the evolution of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 J. Leech , K. G. Isaak , P. P. Papadopoulos , Y. Gao , G. R. Davis

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…

Astrophysics · Physics 2009-11-06 Dinh-V-Trung , K. Y. Lo , D. -C. Kim , Yu Gao , R. A. Gruendl

Line intensity mapping (LIM) is a promising approach to study star formation and the interstellar medium (ISM) in galaxies by measuring the aggregate line emission from the entire galaxy population. In this work, we develop a simple yet…

Astrophysics of Galaxies · Physics 2020-01-08 Guochao Sun , Brandon S. Hensley , Tzu-Ching Chang , Olivier Doré , Paolo Serra

We present mid-infrared (5--16micron) images and spectra of a sequence of interacting galaxies, observed by ISOCAM. The galaxies were selected as being at progressive stages in the time evolution of a merging event, following what is known…

Astrophysics · Physics 2007-05-23 V. Charmandaris , O. Laurent , I. F. Mirabel , P. Gallais , J. Houck

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…

Astrophysics of Galaxies · Physics 2019-01-23 Jinyi Shangguan , Luis C. Ho , Ruancun Li , Ming-Yang Zhuang , Yanxia Xie , Zhihui Li

We present a comprehensive suite of high-resolution (parsec-scale), idealised (non-cosmological) galaxy merger simulations (24 runs, stellar mass ratio ~2.5:1) to investigate the connection between interaction-induced star formation and the…

A total of 19 luminous infrared galaxy mergers, with L_IR~2 10^11 L_sun for H_0=75 km/s/Mpc, have been observed in the HI line at Nancay and four of them were observed at Arecibo as well. Of these 19, ten had not been observed before. Six…

Astrophysics · Physics 2009-11-06 W. van Driel , Y. Gao , D. Monnier-Ragaigne

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…

We collected data for two samples of normal and interacting galaxies for a total of 2953 galaxies having fluxes in one or more of the following wavebands: FIR, 21 cm line, CO(1-0) lines and soft X-ray. The large set of data obtained allowed…

Astrophysics · Physics 2007-05-23 V. Casasola , L. Piovan , G. Galletta , D. Bettoni , E. Merlin

We analyse subarcsecond resolution interferometric CO line data for twelve sub-millimetre-luminous (S850um > 5mJy) galaxies with redshifts between 1 and 3, presenting new data for four of them. Morphologically and kinematically most of the…

Cosmology and Nongalactic Astrophysics · Physics 2010-11-03 H. Engel , L. J. Tacconi , R. I. Davies , R. Neri , I. Smail , S. C. Chapman , R. Genzel , P. Cox , T. R. Greve , R. J. Ivison , A. Blain , F. Bertoldi , A. Omont

LISA will extend the search for gravitational waves (GWs) at $0.1\,{-}\,100$ mHz where loud signals from coalescing binary black holes of $ 10^4 \,{-}\,10^7\,\rm M_{\odot}$ are expected. Depending on their mass and luminosity distance, the…

Astrophysics of Galaxies · Physics 2023-01-18 Gaia Lops , David Izquierdo-Villalba , Monica Colpi , Silvia Bonoli , Alberto Sesana , Alberto Mangiagli

We introduce the `Illustris zoom simulation project', which allows the study of selected galaxies forming in the $\Lambda$CDM cosmology with a 40 times better mass resolution than in the parent large-scale hydrodynamical Illustris…

Astrophysics of Galaxies · Physics 2016-08-01 Martin Sparre , Volker Springel

Mergers in the local universe present a unique opportunity for studying the transformations of galaxies in detail. Presented here are recent results, based on multi-wavelength, high-resolution imaging and medium resolution spectroscopy,…

Cosmology and Nongalactic Astrophysics · Physics 2010-05-12 Barry Rothberg , Jacqueline Fischer

Millimeter (CO) observations of 5 double-nucleus ultraluminous infrared galaxy (ULIG) mergers are presented. With nuclear separations of 3-5 kpc, these galaxies are in the ``intermediate'' stages of the merger process. A preliminary…

Astrophysics · Physics 2009-09-25 A. S. Evans , J. A. Surace , J. M. Mazzarella , D. B Sanders
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