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The New X-Ray Pulsar J1802.7-2017 Observed by BeppoSAX

Published online by Cambridge University Press:  22 February 2018

R. Iaria ,
G. Augello ,
N. R. Robba ,
T. Di Salvo ,
L. Burderi  and
L. Lavagetto
R. Iaria
Affiliation:
Dipartimento di Scienze Fisiche ed Astronomiche, Università di Palermo, Via Archirali 36, 90123 Palermo, Italy (iaria@gifco.fisica.unipa.it)
G. Augello
Affiliation:
Dipartimento di Scienze Fisiche ed Astronomiche, Università di Palermo, Via Archirali 36, 90123 Palermo, Italy (iaria@gifco.fisica.unipa.it)
N. R. Robba
Affiliation:
Dipartimento di Scienze Fisiche ed Astronomiche, Università di Palermo, Via Archirali 36, 90123 Palermo, Italy (iaria@gifco.fisica.unipa.it)
T. Di Salvo
Affiliation:
Dipartimento di Scienze Fisiche ed Astronomiche, Università di Palermo, Via Archirali 36, 90123 Palermo, Italy (iaria@gifco.fisica.unipa.it) Astronomical Institute “Anton Pannekoek, ”, University of Amsterdam and Center for High-Energy Astrophysics, Kruislaan 403, NL 1098 SJ Amsterdam, the Netherlands
L. Burderi
Affiliation:
Osservatorio Astronomico di Roma, Via Frascati 33, 00040 Monteporzio Catone (Roma), Italy
L. Lavagetto
Affiliation:
Dipartimento di Scienze Fisiche ed Astronomiche, Università di Palermo, Via Archirali 36, 90123 Palermo, Italy (iaria@gifco.fisica.unipa.it)

Extract

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We report on the serendipitous discovery of a new X-ray source, SAX J1802.7-2017, ~ 22' away from the bright X-ray source GX 9+l, during a BeppoSAX observation of the latter source on 2001 September 16-20.

The source was outside the FOV of the BeppoSAX/ LECS. We have verified its presence in both the MECS2 and MECS3 images, which probably excludes that this was a ghost image of a source outside the MECS FOV. Moreover, we can be sure that the source was within the PDS FOV. because the source X-ray pulsations were detected also in the PDS data (see below). We searched for known X-ray sources in a circular region of 30' centered at GX 9+1 in the SIMBAD data base. We found no known sources with a position compatible with that of the faint source; we therefore designate this serendipitous source as SAX J1802.7 2017.

Type
The Contributed Papers
Information
International Astronomical Union Colloquium , Volume 194: Compact binaries in the galaxy and beyond , 2004 , pp. 212
Copyright
Copyright © Instituto de astronomia/revista mexicana de astronomίa y astrofίsica 2004