/ftp/cats/aliases/K/./KK2009



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J/ApJ/701/508      5000 AGNs behind the Magellanic clouds     (Kozlowski+, 2009)
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	table[12].dat
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=J/ApJ/701/508
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Beginning of ReadMe : J/ApJ/701/508 5000 AGNs behind the Magellanic clouds (Kozlowski+, 2009) ================================================================================ Discovery of 5000 active galactic nuclei behind the Magellanic Clouds. Kozlowski S., Kochanek C.S. <Astrophys. J., 701, 508-513 (2009)> =2009ApJ...701..508K ================================================================================ ADC_Keywords: Active gal. nuclei ; Photometry, infrared ; Magellanic Clouds Keywords: cosmology: observations - galaxies: active - infrared: galaxies - quasars: general Abstract: We show that using mid-IR color selection to find active galactic nuclei (AGNs) is as effective in dense stellar fields such as the Magellanic Clouds as it is in extragalactic fields with low stellar densities using comparisons between the Spitzer Deep Wide Field Survey data for the NOAO Deep Wide Field Survey Bootes region and the SAGE Survey of the Large Magellanic Cloud. We use this to build high-purity catalogs of  5000 AGN candidates behind the Magellanic Clouds. Once confirmed, these quasars will expand the available astrometric reference sources for the Clouds and the numbers of quasars with densely sampled, long-term (>decade) monitoring light curves by well over an order of magnitude and potentially identify sufficiently bright quasars for absorption line studies of the interstellar medium of the Clouds. Description: We combine results from studies of the extragalactic NOAO Deep Wide Field Survey (NDWFS; Jannuzi & Dey, 1999ASPC..191..111J) Bootes field based on the IRAC Shallow Survey (Eisenhardt et al. 2004ApJS..154...48E), the Spitzer Deep Wide Field Survey (SDWFS; Ashby et al. 2009, Cat J/ApJ/701/428), and the AGN and Galaxy Evolution Survey (AGES; C. S. Kochanek et al. 2009, in prep) with the Spitzer SAGE Survey data (Meixner et al. 2006, Cat. J/AJ/132/2268) and OGLE-III optical survey (Udalski et al. 2008AcA....58...69U, 2008AcA....58...89U, 2008AcA....58..329U) of the LMC to develop a simple method of selecting AGNs in these dense stellar fields.