Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007atel..992....1l&link_type=abstract
The Astronomer's Telegram, #992
Astronomy and Astrophysics
Astronomy
1
X-Ray, Gamma Ray, Agn, Stars
Scientific paper
Four excesses (IGR J11567+3700, IGR J12488+3315, IGR J13371+1520 and IGR J13103+2001) detected by INTEGRAL/IBIS in a deep observation of the Coma region (Krivonos et al., 2005, ApJ, 625, 89) have recently been observed with the Swift/XRT X-ray telescope. Within the 4 arcmin IBIS error box we do not detect any X-ray source above 3 sigma confidence level. We further notice that none of the above excesses has been reported in the literature afterwards nor is listed in recent INTEGRAL/IBIS survey catalogs (Bird et al., 2007, ApJ Supp in press, astro-ph/0611493 ; Krivonos et al., 2007, astro-ph/0701836).
Fiocchi Maria Teresa
Hill Adrian
Landi Raffaella
Markwardt Craig
Tueller Jack
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