The nature of fifty Palermo Swift-BAT hard X-ray objects through optical spectroscopy

Journal
REVISTA MEXICANA DE ASTRONOMÍA Y ASTROFÍSICA. SERIE DE CONFERENCIAS
Date Issued
2017
Author(s)
Rojas, A. F.
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Minniti, D.
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Jiménez-Bailón, E.
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Chavushyan, V.
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Hau, G.
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McBride, V. A.
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Bird, A. J.
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Galaz, G.
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Gavignaud, I.
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Landi, R.
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Morelli, L.
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Patiño-álvarez, V.
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Ubertini, P.
Abstract
We present the nature of 50 unidentified hard X-ray emitting objects detected with Swift-BAT and listed as of unidentified nature in the 54-month Palermo BAT catalogue. We found 45 extragalactic sources: 26 type 1 AGN, 15 type 2 AGN, one type 1 QSO, one starburst galaxy, one X-ray bright optically normal galaxy, and one LINER. We report 30 new redshift measurements, 13 confirmations and 2 more accurate redshift values. The remaining five objects are galactic sources: three are Cataclismic Variables, one is a X-ray Binary, and one is an active star.
Coverage
XV Latin American Regional IAU Meeting Cartagena 2016
All editors
Higuera Garzón, Mario Armando; Vargas Domínguez, Santiago
Volume
49
Start page
153
Conferenece
XV Latin American Regional IAU Meeting Cartagena 2016
Conferenece place
Cartagena
Conferenece date
3 - 7 Ottobre, 2016
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