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Related papers: Distorted HI Gas in the Widely Separated LIRG Arp …

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Arp 302, a luminous infrared source (L_{IR} = 4.2x10^{11} Lsun), consisting of two spiral galaxies (VV340A and VV340B) with nuclear separation of 40'', has the highest CO luminosity known. Observations with the BIMA array at 5'' X 7''…

Astrophysics · Physics 2016-08-30 K. Y. Lo , Yu Gao , Robert A. Gruendl

We present star formation rates based on cold and ionized gas measurements of Mrk 266 (NGC 5256), a system composed of two colliding gas-rich galaxies, each hosting an active galactic nucleus. Using $^{12}$CO (1-0) observations with the…

We present Spitzer/IRS spectral mapping observations of the luminous infrared galaxy (LIRG) Arp299 (IC694 + NGC3690) covering the central 45arcsec ~ 9kpc. The integrated mid-IR spectrum of Arp299 is similar to that of local starbursts…

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

Arp 220 is the prototypical Ultraluminous Infrared Galaxy (ULIRG), and one of the brightest objects in the extragalactic far-infrared sky. It is the result of a merger between two gas rich spiral galaxies which has triggered starbursting…

Astrophysics of Galaxies · Physics 2024-12-20 David L Clements , Qizhou Zhang , K. Pattle , G. Petitpas , Y. Ding , J. Cairns

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

We present some highlights from the mid-infrared (5-16 micron) images of mergers of massive galaxies obtained with the Infrared Space Observatory (ISO). We have observed: 1) ultraluminous infrared nuclei, 2) luminous dust-enshrouded…

Astrophysics · Physics 2009-10-31 I. F. Mirabel , O. Laurent

We present evidence for the dramatically different morphology between the rest frame UV and 7micron mid-IR emission of VV114 and Arp299, two nearby (z~0) violently interacting infrared luminous galaxies (LIRGs). Nearly all LIRGs are…

Astrophysics · Physics 2009-11-10 V. Charmandaris , E. Le Floc'h , I. F. Mirabel

We present IRAM Plateau de Bure Interferometer 3mm observations of CO(1-0) emission in two 24um-selected starburst galaxies in the outskirts (2-3xR_virial) of the rich cluster Cl0024+16 (z=0.395). The galaxies' inferred far-infrared…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-13 James E. Geach , Ian Smail , Kristen Coppin , Sean M. Moran , Alastair C. Edge , Richard S. Ellis

We present a first look at the local LIRG, IRAS04296+2923. This barred spiral, overlooked because of its location in the Galactic plane, is among the half dozen closest LIRGs. More IR-luminous than either M82 or the Antennae, it may be the…

Astrophysics of Galaxies · Physics 2015-05-19 David S. Meier , Jean L. Turner , Sara C. Beck , Varoujan Gorjian , Chao-Wei Tsai , Schuyler D. Van Dyk

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…

High Energy Astrophysical Phenomena · Physics 2016-05-25 Rhiannon D. Griffin , Xinyu Dai , Todd A. Thompson

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

Recent high resolution near infrared (HST-NICMOS) and mm-interferometric imaging have revealed dense gas and dust accretion disks in nearby ultra-luminous galactic nuclei. In the best studied ultraluminous IR galaxy, Arp 220, the 2 micron…

Astrophysics · Physics 2007-05-23 N. Z. Scoville

We present ground-based infrared K- (2-2.5 micron) and L-band (2.8-4.1 micron) spectroscopy, as well as interferometric observations at 3mm, for the individual merging components (A, B, and C) of the luminous infrared galaxy Arp 299. We…

Astrophysics · Physics 2015-06-24 Masatoshi Imanishi , Kouichiro Nakanishi

An analysis of data from the Spitzer Space Telescope, Hubble Space Telescope, Chandra X-ray Observatory, and AKARI Infrared Astronomy Satellite is presented for the z=0.036 merging galaxy system II Zw 096 (CGCG 448-020). Because II Zw 096…

The line and continuum spectra of the merger galaxy Arp 220 are analysed with the aim of investigating the ionizing and heating sources. We refer to radio, optical, infrared and X-ray spectra. The results show that in agreement with other…

Astrophysics of Galaxies · Physics 2015-06-12 M. Contini

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 fully sampled high angular resolution two-dimensional kinematics in the H alpha spectral line, optical and near-infrared imaging, as well as 21 cm atomic hydrogen data of the spiral galaxy NGC 278. This is a small non-barred…

Astrophysics · Physics 2009-11-10 J. H. Knapen , L. F. Whyte , W. J. G. de Blok , J. M. van der Hulst

The ultra-luminous infrared galaxy Arp2 20 is a late-stage merger with several tidal structures in the outskirts and two very compact, dusty nuclei that show evidence for extreme star formation and host at least one AGN. New and archival…

Astrophysics of Galaxies · Physics 2023-02-15 R. Chandar , M. Caputo , S. Linden , A. Mok , B. C. Whitmore , D. Calzetti , D. M. Elmegreen , J. C. Lee , L. Ubeda , R. White , D. O. Cook

We present evidence for a Spitzer-selected luminous infrared galaxy (LIRG) behind the Bullet Cluster. The galaxy, originally identified in IRAC photometry as a multiply imaged source, has a spectral energy distribution consistent with a…

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