Announcement of INTEGRAL Galactic Plane monitoring program and detection of 2 new hard X-ray sources.
ATel #3361; A. Bazzano, (INAF/IASF Roma), A. J. Bird (Univ. Southampton), E. Kuulkers (ESA/ESAC, Spain), L. Sidoli INAF/IASF Milano), V. Sguera (INAF/IASF Bologna) M. Fiocchi, L. Natalucci, A. Tarana, P. Ubertini, F. Capitanio, M. Del Santo, S. Sabatini, M. Tavani (INAF/IASF Roma), L. Bassani, A. Malizia (INAF/IASF Bologna), S. P. Drave (Univ. Southampton), C. Winkler (ESA ESTEC, The Netherlands)
on 18 May 2011; 16:30 UT
Credential Certification: mariateresa fiocchi (email@example.com)
Subjects: X-ray, Gamma Ray, Binary, Black Hole, Cataclysmic Variable, Globular Cluster, Neutron Star, Transient, Variables
Referred to by ATel #: 5079
INTEGRAL commenced a new series of Galactic Plane Scans on May 14th 2011.
Under an approved INTEGRAL AO-8 proposal (PI: Bazzano) the part of the Galactic Plane visible by INTEGRAL will be scanned regularly, during every INTEGRAL revolution (about every 3 days), for parts of AO-8, for a total exposure time of 2Msec.
We here report on quick-look analysis of the observations performed in revolution 1048, covering the period from UT 2011-05-14 at 05:21:38 to 2011-05-15 at 07:51:04 and later from 2011-05-16 at 08:28:28 ending at 21:13:12 on two different regions of the sky for a total duration 64 of and 41 ks, respectively.
Besides detection of a number of known sources at high significance level we report the
detection of 2 new sources with IBIS/ISGRI at position R.A., dec (J2000) = 290.145, 13.47 and 287.414, 4.254 with a positional uncertainty of 3 arcminutes (90% confidence). These sources are detected at flux levels of 16.5 +/- 1.9 mCrab and 18.9 +/- 1.9 mCrab respectively in the energy band 18-40 keV. They were not detected in the 40-100 keV band.
No catalogued and previously detected X-ray sources are known within the IBIS error circles and hence we name these sources IGR J19203+1328 and IGR J19094+0415.
We encourage follow-up observations at other wavelengths.
The data from the Galactic Plane monitoring program are made publicly available from http://isdc.unige.ch.
More scans of the Galactic Plane are planned in the course of the INTEGRAL AO-8,
As a service to the scientific community, mosaic images and light curves in 4 energy bands (JEM-X 3-10 keV and 10-25 keV, IBIS/ISGRI 18-40 keV and 40-100 keV) of the sources detected in the field of view will be made publicly available as soon as possible after the observations are performed. These quick-look results, as well as more information about the program, will be available soon and can be retrieved from http://gpsiasf.iasf-roma.inaf.it/
We wish to thank the ISOC team at ESAC for their assistance in the planning of these observations.