On the nature of Extremely Red Objects: the 2 Ms Chandra Deep Field-North Survey results

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dc.creatorVignali, C.
dc.creatorAlexander, D. M.
dc.creatorBauer, F. E.
dc.creatorBrandt, W. N.
dc.creatorHornschemeier, A. E.
dc.creatorGarmire, G. P.
dc.creatorSchneider, D. P.
dc.date2002-09-19
dc.date.accessioned2026-07-07T02:05:19Z
dc.date.available2026-07-07T02:05:19Z
dc.descriptionUnderstanding the nature of Extremely Red Objects [EROs; (I-K)>=4] is one of the most challenging issues in observational cosmology. Here we report on the X-ray constraints provided by the 2 Ms Chandra Deep Field-North Survey (CDF-N). X-ray emission has been detected from 11 out of 36 EROs (approx 30%). Five of these have hard X-ray emission and appear to be obscured AGNs, while non-AGN emission (star formation or normal elliptical galaxy emission) is likely to be the dominant source of X-rays from the soft X-ray sources detected at the faintest X-ray flux levels.
dc.description4 pages, 4 figures, Latex macro sprocl.sty, to be published in the proceedings of the 5th Italian AGN Meeting "Inflows, Outflows and Reprocessing around black holes" (2002)
dc.identifierhttps://arxiv.org/abs/astro-ph/0209415
dc.identifierhttp://arxiv.org/abs/astro-ph/0209415
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/5066
dc.subjectAstrophysics
dc.titleOn the nature of Extremely Red Objects: the 2 Ms Chandra Deep Field-North Survey results
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