Variability-selected Quasars behind the Small Magellanic Cloud | Zendy

A. Dobrzycki | Zendy; Lucas M. Macri | Zendy; K. Z. Stanek | Zendy; P. Groot | Zendy

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Variability-selected Quasars behind the Small Magellanic Cloud

Author(s) -

A. Dobrzycki,

Lucas M. Macri,

K. Z. Stanek,

P. Groot

Publication year - 2003

Publication title -

the astronomical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.61

H-Index - 271

eISSN - 1538-3881

pISSN - 0004-6256

DOI - 10.1086/346144

Subject(s) - quasar , physics , astrophysics , redshift , small magellanic cloud , stars , large magellanic cloud , astronomy , galaxy

We present followup spectroscopic observations of quasar candidates in theSmall Magellanic Cloud selected by Eyer from the OGLE database. Of twelveobserved objects identified as "QSO Candidate", five are confirmed quasars,with the emission redshifts ranging from 0.28 to 2.16. Two of those quasarswere also recently identified independently in the MACHO database by Geha etal. We discuss the prospects of using variability-based selection technique forquasar searches behind other dense stellar fields. An additional criterionutilizing the color-color diagram should reduce the number of stars in thecandidate lists.Comment: Revised version, AASTeX, 11 pages, 3 EPS figures, one table, accepted 14 Nov 2002 for publication in the Astronomical Journal, March 2003 issu

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