UNVEILING THE NATURE OF IGR J17177-3656 WITH X-RAY, NEAR-INFRARED, AND RADIO OBSERVATIONS

Journal Article · Sat Sep 10 04:00:00 EDT 2011 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/738/2/183; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA)· OSTI ID:21584840

Paizis, A ^[1]; Nowak, M A ^[2]; Wilms, J ^[3]; Chaty, S; Corbel, S; Rodriguez, J ^[4]; Del Santo, M; Ubertini, P ^[5]; Chini, R ^[6]

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1. Istituto Nazionale di Astrofisica, INAF-IASF, Via Bassini 15, I-20133 Milano (Italy)
2. Massachusetts Institute of Technology, Kavli Institute for Astrophysics, Cambridge, MA 02139 (United States)
3. Dr. Karl Remeis-Sternwarte and Erlangen Centre for Astroparticle Physics, Universitaet Erlangen-Nuernberg, Sternwartstr. 7, D-96049 Bamberg (Germany)
4. AIM-Astrophysique, Instrumentation et Modelisation (UMR-E 9005 CEA/DSM-CNRS-Universite Paris Diderot) Irfu/Service d'Astrophysique, Centre de Saclay, F-91191 Gif-sur-Yvette Cedex (France)
5. IASF Roma-INAF, Via del Fosso del Cavaliere 100, I-00133 Roma (Italy)
6. Astronomisches Institut, Ruhr-Universitaet Bochum, Universitaetsstrasse 150, D-44780 Bochum (Germany)

We report on the first broadband (1-200 keV) simultaneous Chandra-INTEGRAL observations of the recently discovered hard X-ray transient IGR J17177-3656 that took place on 2011 March 22, about two weeks after the source discovery. The source had an average absorbed 1-200 keV flux of about 8 x 10{sup -10} erg cm{sup -2} s{sup -1}. We extracted a precise X-ray position of IGR J17177-3656, {alpha}{sub J2000} = 17{sup h}17{sup m}42.{sup s}62, {delta}{sub J2000} = -36{sup 0}56'04.''5 (90% uncertainty of 0.''6). We also report Swift, near-infrared, and quasi-simultaneous radio follow-up observations. With the multi-wavelength information at hand, we propose IGR J17177-3656 is a low-mass X-ray binary, seen at high inclination, probably hosting a black hole.

• OSTI ID: 21584840
• Journal Information: Astrophysical Journal, Journal Name: Astrophysical Journal Journal Issue: 2 Vol. 738; ISSN ASJOAB; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
ACCRETION DISKS
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
ELECTROMAGNETIC RADIATION
INFRARED RADIATION
NEAR INFRARED RADIATION
RADIATIONS
RADIOWAVE RADIATION
STARS