Hubble Space Telescope observations of the serendipitous X-ray companion to Markarian 273: Cluster at z = 0.46?

We have used Hubble Space Telescope (HST) I-band images to identify Mrk 273X, the very unusual high-redshift X-ray-luminous Seyfert 2 galaxy found by ROSAT in the same field of view as Mrk 273. We have measured the photometric properties of Mrk 273X and have also analyzed the luminosity distribution...

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Detalles Bibliográficos
Autores: Borne, Kirk D., Colina, Luis, Bushouse, Howard, Lucas, Ray A.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:1999
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/393262
Acceso en línea:http://hdl.handle.net/10261/393262
Access Level:acceso abierto
Palabra clave:Galaxies: active
Galaxies: clusters: general
Galaxies: individual (Markarian 273)
X-rays: galaxies
Galaxies: Seyfert
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spelling Hubble Space Telescope observations of the serendipitous X-ray companion to Markarian 273: Cluster at z = 0.46?Borne, Kirk D.Colina, LuisBushouse, HowardLucas, Ray A.Galaxies: activeGalaxies: clusters: generalGalaxies: individual (Markarian 273)X-rays: galaxiesGalaxies: SeyfertWe have used Hubble Space Telescope (HST) I-band images to identify Mrk 273X, the very unusual high-redshift X-ray-luminous Seyfert 2 galaxy found by ROSAT in the same field of view as Mrk 273. We have measured the photometric properties of Mrk 273X and have also analyzed the luminosity distribution of the faint galaxy population seen in the HST image. The luminosity of the galaxy and the properties of the surrounding environment suggest that Mrk 273X is the brightest galaxy in a relatively poor cluster at z ≈ 0.46. Its off-center location in the cluster and the presence of other galaxy groupings in the HST image may indicate that this is a dynamically young cluster on the verge of merging with its neighboring clusters. We find that Mrk 273X is a bright, featureless elliptical galaxy, with no evidence for a disk. It follows the de Vaucouleurs (r1/4) surface brightness law very well over a range of 8 mag. Although the surface brightness profile does not appear to be dominated by the active galactic nucleus (AGN), the galaxy has very blue colors that do appear to be produced by the AGN. Mrk 273X is most similar to the IC 5063 class of active galaxies—a hybrid Seyfert 2/powerful radio galaxy.Support for this work was provided by NASA through grant GO-06346.01-95A from the Space Telescope Science Institute, which is operated by AURA, Inc., under NASA contract NAS5-26555. K. B. thanks Raytheon for providing Ðnancial support during his sabbatical leave. K. B. also thanks Ron Allen and the Space Telescope Science Institute for their hospitality in sponsoring his sabbatical visit. This research has made use of the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.Peer reviewedIOP PublishingNASAConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520251999info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/393262reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1086/308132Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3932622026-05-22T06:33:51Z
dc.title.none.fl_str_mv Hubble Space Telescope observations of the serendipitous X-ray companion to Markarian 273: Cluster at z = 0.46?
title Hubble Space Telescope observations of the serendipitous X-ray companion to Markarian 273: Cluster at z = 0.46?
spellingShingle Hubble Space Telescope observations of the serendipitous X-ray companion to Markarian 273: Cluster at z = 0.46?
Borne, Kirk D.
Galaxies: active
Galaxies: clusters: general
Galaxies: individual (Markarian 273)
X-rays: galaxies
Galaxies: Seyfert
title_short Hubble Space Telescope observations of the serendipitous X-ray companion to Markarian 273: Cluster at z = 0.46?
title_full Hubble Space Telescope observations of the serendipitous X-ray companion to Markarian 273: Cluster at z = 0.46?
title_fullStr Hubble Space Telescope observations of the serendipitous X-ray companion to Markarian 273: Cluster at z = 0.46?
title_full_unstemmed Hubble Space Telescope observations of the serendipitous X-ray companion to Markarian 273: Cluster at z = 0.46?
title_sort Hubble Space Telescope observations of the serendipitous X-ray companion to Markarian 273: Cluster at z = 0.46?
dc.creator.none.fl_str_mv Borne, Kirk D.
Colina, Luis
Bushouse, Howard
Lucas, Ray A.
author Borne, Kirk D.
author_facet Borne, Kirk D.
Colina, Luis
Bushouse, Howard
Lucas, Ray A.
author_role author
author2 Colina, Luis
Bushouse, Howard
Lucas, Ray A.
author2_role author
author
author
dc.contributor.none.fl_str_mv NASA
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Galaxies: active
Galaxies: clusters: general
Galaxies: individual (Markarian 273)
X-rays: galaxies
Galaxies: Seyfert
topic Galaxies: active
Galaxies: clusters: general
Galaxies: individual (Markarian 273)
X-rays: galaxies
Galaxies: Seyfert
description We have used Hubble Space Telescope (HST) I-band images to identify Mrk 273X, the very unusual high-redshift X-ray-luminous Seyfert 2 galaxy found by ROSAT in the same field of view as Mrk 273. We have measured the photometric properties of Mrk 273X and have also analyzed the luminosity distribution of the faint galaxy population seen in the HST image. The luminosity of the galaxy and the properties of the surrounding environment suggest that Mrk 273X is the brightest galaxy in a relatively poor cluster at z ≈ 0.46. Its off-center location in the cluster and the presence of other galaxy groupings in the HST image may indicate that this is a dynamically young cluster on the verge of merging with its neighboring clusters. We find that Mrk 273X is a bright, featureless elliptical galaxy, with no evidence for a disk. It follows the de Vaucouleurs (r1/4) surface brightness law very well over a range of 8 mag. Although the surface brightness profile does not appear to be dominated by the active galactic nucleus (AGN), the galaxy has very blue colors that do appear to be produced by the AGN. Mrk 273X is most similar to the IC 5063 class of active galaxies—a hybrid Seyfert 2/powerful radio galaxy.
publishDate 1999
dc.date.none.fl_str_mv 1999
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/393262
url http://hdl.handle.net/10261/393262
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1086/308132
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812429

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