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Integral Observations of the Transient Source IGR J19140+098

Published online by Cambridge University Press:  22 February 2018

C. Cabanac ,
J. Rodriguez ,
P. O. Petrucci ,
G. Henri ,
D. C. Hannikainen  and
P. Durouchoux
C. Cabanac
Affiliation:
Laboratoire d'Astrophysique de Grenoble, France
J. Rodriguez
Affiliation:
ISDC, Versoix, Switzerland CEA, Saclay, France
P. O. Petrucci
Affiliation:
Laboratoire d'Astrophysique de Grenoble, France
G. Henri
Affiliation:
Laboratoire d'Astrophysique de Grenoble, France
D. C. Hannikainen
Affiliation:
Observatory, University of Helsinki, Finland
P. Durouchoux
Affiliation:
CEA, Saclay, France

Extract

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IGR J19140+098 was (re-)discovered during the early INTEGRAL observations of GRS1915+105 in March 2003. The following observations by INTEGRAL and RXTE show significant variability on various time scales from 100s to 1ks, but no pulsations. The ISGRI spectra show strong spectral variability in the 20-80keV range. Combined JEMX 2-ISGRI spectra are well fitted by a “multi-coulour” disk model with a rather high inner disk temperature (≃1.8 keV). RXTE data also reveal an apparently broad ionised iron line not detected in earlier INTEGRAL observations. These results are compatible with a galactic X-ray binary source.

Type
The Contributed Papers
Information
International Astronomical Union Colloquium , Volume 194: Compact binaries in the galaxy and beyond , 2004 , pp. 209
Copyright
Copyright © Instituto de astronomia/revista mexicana de astronomίa y astrofίsica 2004

References

Hannikainen, et al. 2003, [astro-ph/309532]Google Scholar
Hannikainen, , Rodriguez, & Potschmidt, 2003, IAUC 8088Google Scholar
Rodriguez, et al. 2003, A&A, 407, 41–45 Google Scholar
Swank, & Markwardt, , 2003, ATEL #128Google Scholar