Discovery of Ram-pressure Stripped Gas around an Elliptical Galaxy in Abell 2670

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dc.contributor.authorSheen, Y.-K.
dc.contributor.authorSmith, R.
dc.contributor.authorJaffé, Y.
dc.contributor.authorKim, M.
dc.contributor.authorYi, S.K.
dc.contributor.authorDuc, P.-A.
dc.contributor.authorNantais, J.
dc.contributor.authorCandlish, G.
dc.contributor.authorDemarco, R.
dc.contributor.authorTreister, E.
dc.date.accessioned2017-10-30T13:23:41Z
dc.date.available2017-10-30T13:23:41Z
dc.date.issued2017-05
dc.descriptionIndexación: Scopus.es_CL
dc.description.abstractStudies of cluster galaxies are increasingly finding galaxies with spectacular one-sided tails of gas and young stars, suggestive of intense ram-pressure stripping. These so-called "jellyfish" galaxies typically have late-type morphology. In this paper, we present Multi Unit Spectroscopic Explorer (MUSE) observations of an elliptical galaxy in Abell 2670 with long tails of material visible in the optical spectra, as well as blobs with tadpole-like morphology. The spectra in the central part of the galaxy reveal a stellar component as well as ionized gas. The stellar component does not have significant rotation, while the ionized gas defines a clear star-forming gas disk. We argue, based on deep optical images of the galaxy, that the gas was most likely acquired during a past wet merger. It is possible that the star-forming blobs are also remnants of the merger. In addition, the direction and kinematics of the one-sided ionized tails, combined with the tadpole morphology of the star-forming blobs, strongly suggests that the system is undergoing ram pressure from the intracluster medium. In summary, this paper presents the discovery of a post-merger elliptical galaxy undergoing ram-pressure strippinges_CL
dc.description.urihttp://iopscience.iop.org/article/10.3847/2041-8213/aa6d79/meta;jsessionid=DB968E65AE5D7E892590B893C471ACA5.c1.iopscience.cld.iop.org
dc.identifier.citationAstrophysical Journal Letters Volume 840, Issue 1, 1 May 2017, Article number L7es_CL
dc.identifier.issn2041-8205
dc.identifier.otherDOI: 10.3847/2041-8213/aa6d79
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/4487
dc.language.isoenes_CL
dc.publisherIOP Publishinges_CL
dc.subjectGalaxies: clusters: individual (Abell 2670)es_CL
dc.subjectGalaxies: clusters: intracluster mediumes_CL
dc.subjectGalaxies: elliptical and lenticular, cDes_CL
dc.subjectGalaxies: kinematics and dynamicses_CL
dc.subjectGalaxies: star formationes_CL
dc.titleDiscovery of Ram-pressure Stripped Gas around an Elliptical Galaxy in Abell 2670es_CL
dc.typeArtículoes_CL
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