The Arp 220 merger on kpc scales

dc.contributor.authorKonig, S
dc.contributor.authorGarcia-Marin, M
dc.contributor.authorEckart, A
dc.contributor.authorDownes, D
dc.contributor.authorScharwaechter, Julia
dc.date.accessioned2015-12-10T23:16:32Z
dc.date.issued2012
dc.date.updated2016-02-24T08:35:36Z
dc.description.abstractFor the first time, we study the eastern nucleus in greater detail and search for the more extended emission in the molecular gas in different CO line transitions of the famous ultraluminous infrared galaxy (ULIRG) Arp 220. Furthermore, we present a model of the merger in Arp 220 on large scales with the help of the CO data and an optical and near-infrared composite Hubble Space Telescope image of the prototypical ULIRG. Using the Plateau de Bure interferometer (PdBI), we obtained CO(2-1) and (1-0) data at wavelengths of 1 and 3mm in 1994, 1996, 1997, and 2006 at different beam sizes and spatial resolutions. The simulations of the merger in Arp 220 were performed with the Identikit modeling tool. The model parameters that describe the galaxy merger best give a mass ratio of 1:2 and result in a merger of 6 × 108yr. The low-resolution CO(1-0) PdBI observations suggest that there are indications for emission 10″ toward the south, as well as to the north and to the west of the two nuclei.
dc.identifier.issn0004-637X
dc.identifier.urihttp://hdl.handle.net/1885/65104
dc.publisherIOP Publishing
dc.sourceAstrophysical Journal, The
dc.subjectKeywords: Galaxies: interactions; Galaxies: kinematics and dynamics; Galaxies: nuclei; Radio lines: galaxies
dc.titleThe Arp 220 merger on kpc scales
dc.typeJournal article
local.bibliographicCitation.issue1
local.contributor.affiliationKonig, S, Dark Cosmology Centre
local.contributor.affiliationGarcia-Marin, M, Universität zu Köln
local.contributor.affiliationEckart, A, Universität zu Köln
local.contributor.affiliationDownes, D, Domaine Universitaire
local.contributor.affiliationScharwaechter, Julia, College of Physical and Mathematical Sciences, ANU
local.contributor.authoremailrepository.admin@anu.edu.au
local.contributor.authoruidScharwaechter, Julia, u4735320
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.identifier.absfor020100 - ASTRONOMICAL AND SPACE SCIENCES
local.identifier.ariespublicationf5625xPUB1052
local.identifier.citationvolume754
local.identifier.doi10.1088/0004-637X/754/1/58
local.identifier.scopusID2-s2.0-84863679808
local.identifier.thomsonID000307271100007
local.identifier.uidSubmittedByf5625
local.type.statusPublished Version

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