Show simple item record

dc.contributor.authorSell, Paul H.
dc.contributor.authorTremonti, Christy
dc.contributor.authorHickox, Ryan C.
dc.contributor.authorDiamond-Stanic, A. M.
dc.contributor.authorMoustakas, J.
dc.contributor.authorCoil, Alison L.
dc.contributor.authorWilliams, A.
dc.contributor.authorRudnick, Gregory H.
dc.contributor.authorRobaina, A.
dc.contributor.authorGeach, James E.
dc.contributor.authorHeinz, S.
dc.contributor.authorWilcots, E. M.
dc.identifier.citationSell, P. H., C. A. Tremonti, R. C. Hickox, A. M. Diamond-Stanic, J. Moustakas, A. Coil, A. Williams, G. Rudnick, A. Robaina, J. E. Geach, S. Heinz, and E. M. Wilcots. "Massive Compact Galaxies with High-velocity Outflows: Morphological Analysis and Constraints on AGN Activity." Monthly Notices of the Royal Astronomical Society 441.4 (2014): 3417-443.
dc.descriptionThis is the published version. Copyright © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Societyen_US
dc.description.abstractWe investigate the process of rapid star formation quenching in a sample of 12 massive galaxies at intermediate redshift (z ∼ 0.6) that host high-velocity ionized gas outflows (v > 1000 km s−1). We conclude that these fast outflows are most likely driven by feedback from star formation rather than active galactic nuclei (AGNs). We use multiwavelength survey and targeted observations of the galaxies to assess their star formation, AGN activity, and morphology. Common attributes include diffuse tidal features indicative of recent mergers accompanied by bright, unresolved cores with effective radii less than a few hundred parsecs. The galaxies are extraordinarily compact for their stellar mass, even when compared with galaxies at z ∼ 2–3. For 9/12 galaxies, we rule out an AGN contribution to the nuclear light and hypothesize that the unresolved core comes from a compact central starburst triggered by the dissipative collapse of very gas-rich progenitor merging discs. We find evidence of AGN activity in half the sample but we argue that it accounts for only a small fraction (≲10 per cent) of the total bolometric luminosity. We find no correlation between AGN activity and outflow velocity and we conclude that the fast outflows in our galaxies are not powered by ongoing AGN activity, but rather by recent, extremely compact starbursts.en_US
dc.publisherOxford University Pressen_US
dc.subjectActive galaxiesen_US
dc.subjectEvolution galaxiesen_US
dc.subjectInteractions galaxiesen_US
dc.titleMassive compact galaxies with high-velocity outflows: morphological analysis and constraints on AGN activityen_US
kusw.kuauthorRudnick, Gregory H.
kusw.kudepartmentPhysics and Astronomyen_US
kusw.oanotesPer SHERPA/RoMEO, 12/18/15: Author's Pre-print: green tick author can archive pre-print (ie pre-refereeing) Author's Post-print: green tick author can archive post-print (ie final draft post-refereeing) Publisher's Version/PDF: green tick author can archive publisher's version/PDF General Conditions:

Pre-print can only be posted prior to acceptance Pre-print on author's personal website, employer website, free public server or pre-prints in subject area Pre-print must be accompanied by set statement (see link) Pre-print set statement must be amended upon publication (see policy) Publisher's version/PDF may be used Author's Post-print and Publisher's version/PDF on Institutional repositories or Central repositories Published source must be acknowledged Must link to publisher version Set phrase to accompany archived copy (see policy)
kusw.oaversionScholarly/refereed, publisher version
kusw.oapolicyThis item meets KU Open Access policy criteria.

Files in this item


This item appears in the following Collection(s)

Show simple item record