A New Sample of Distant Compact Groups From DPOSS

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dc.creatorIovino, A.
dc.creatorde Carvalho, R.
dc.creatorGal, R.
dc.creatorOdewahn, S.
dc.creatorLopes, P.
dc.creatorMahabal, A.
dc.creatorDjorgovski, S.
dc.date2003-02-19
dc.date.accessioned2026-07-07T02:07:39Z
dc.date.available2026-07-07T02:07:39Z
dc.descriptionWe have identified eighty-four small, high density groups of galaxies out to z ~ 0.2 in a region of ~ 2000 square degrees around the north galactic pole using DPOSS (the Digitized Second Palomar Observatory Sky Survey). The groups have at least four galaxies satisfying more stringent criteria than those used by Hickson in his pioneering work in 1982: the adopted limiting surface brightness for each group is brighter (24 mag/arcsec^2 instead of 26 mag/arcsec^2), and the spread in magnitude among the member galaxies is narrower (two magnitudes instead of three). We also adopt a slightly modified version of the isolation criterion used by Hickson, in order to avoid rejecting groups with projected nearby faint background galaxies. A 10% contamination rate due to projection effects is expected for this sample based on extensive simulations.
dc.description20 pages, 3 encapsulated postscript figures, LateX, Accepted for publication in AJ; appearing in April
dc.identifierhttps://arxiv.org/abs/astro-ph/0302382
dc.identifierhttp://arxiv.org/abs/astro-ph/0302382
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/5767
dc.subjectAstrophysics
dc.titleA New Sample of Distant Compact Groups From DPOSS
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