Deep Chandra image in the Bootes Field

Details Deep Chandra image in the Bootes Field Deep Chandra image in the Bootes Field

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...204.4814w&link_type=abstract

American Astronomical Society Meeting 204, #48.14; Bulletin of the American Astronomical Society, Vol. 36, p.748

Astronomy and Astrophysics

Astronomy

Scientific paper

A 172 ks long Chandra exposure was carried out in the LALA-Bootes field and a similar one for the LALA cetus field. These exposure were deep enough to detect LALA sources, if they were type-II quasars. Lyman-alpha emitters found with LALA show high equivalent widths and AGN phenomenon is one explanation. A total of 101 Ly-alpha emitters are covered by the two Chandra images. No Ly-alpha emitters are detected individually or in the co-added X-ray images. Our analysis indicates that fewer than 4.8 Ly-alpha emitters could be possible AGNs based on the upper limit of their average X-ray to Ly-alpha ratio. The two X-ray images are among the deepest taken by Chandra, with a total of 348 X-ray sources detected, similar to the number of X-ray sources in Chandra Deep Field South. We also see field-to-field variations of the hard X-ray source counts in different Chandra fields, due to large scale structure.

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