Publication:
Probing O VI Emission in the Halos of Edge-on Spiral Galaxies

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dc.contributor.authorOtte, B
dc.contributor.authorMurphy, EM
dc.contributor.authorHowk, JC
dc.contributor.authorWang, QD
dc.contributor.authorOegerle, WR
dc.contributor.authorSembach, KR
dc.contributor.departmentUniversity of Massachusetts - Amherst
dc.date2023-09-23T03:40:04.000
dc.date.accessioned2024-04-26T08:25:06Z
dc.date.available2024-04-26T08:25:06Z
dc.date.issued2003-01-01
dc.description<p>This is the pre-published version harvested from ArXiv. The published version is located at <a href="http://iopscience.iop.org/0004-637X/591/2/821/">http://iopscience.iop.org/0004-637X/591/2/821/</a></p>
dc.description.abstractWe have used the Far Ultraviolet Spectroscopic Explorer to search for O VI λλ1031.926, 1037.617 emission in the halos of the edge-on spiral galaxies NGC 4631 and NGC 891. In NGC 4631, we detected O VI in emission toward a soft X-ray bubble above a region containing numerous Hα arcs and filaments. The line-of-sight component of the motion of the O VI gas appears to match the underlying disk rotation. The observed O VI luminosities can account for 0.2%-2% of the total energy input from supernovae (assuming a full O VI- emitting halo) and yield mass flux cooling rates between 0.48 and 2.8 M yr-1 depending on the model used in the derivations. On the basis of these findings, we believe it is likely that we are seeing cooling, galactic fountain gas. No emission was detected from the halo of NGC 891, a galaxy in a direction with considerably high foreground Galactic extinction.
dc.description.pages821
dc.identifier.doihttps://doi.org/10.1086/375535
dc.identifier.urihttps://hdl.handle.net/20.500.14394/2625
dc.relation.ispartofThe Astrophysical Journal
dc.relation.urlhttps://scholarworks.umass.edu/cgi/viewcontent.cgi?article=2056&amp;context=astro_faculty_pubs&amp;unstamped=1
dc.source.issue2
dc.source.issue591
dc.source.statuspublished
dc.subjectgalaxies: general; galaxies: halos; galaxies: individual (NGC 4631
dc.subjectNGC 891); galaxies: ISM; ISM: general; ISM: individual (NGC 4631
dc.subjectNGC 891)
dc.subjectAstrophysics and Astronomy
dc.titleProbing O VI Emission in the Halos of Edge-on Spiral Galaxies
dc.typearticle
dc.typearticle
digcom.contributor.authorOtte, B
digcom.contributor.authorMurphy, EM
digcom.contributor.authorHowk, JC
digcom.contributor.authorisAuthorOfPublication|email:wqd@astro.umass.edu|institution:University of Massachusetts - Amherst|Wang, QD
digcom.contributor.authorOegerle, WR
digcom.contributor.authorSembach, KR
digcom.identifierastro_faculty_pubs/1010
digcom.identifier.contextkey1943026
digcom.identifier.submissionpathastro_faculty_pubs/1010
dspace.entity.typePublication
relation.isAuthorOfPublication702446e9-94cf-40bd-9d01-6802ee56ee93
relation.isAuthorOfPublication.latestForDiscovery702446e9-94cf-40bd-9d01-6802ee56ee93
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