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| Title:
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INTEGRAL detection of high energy emission from XMMSL1 J171900.4-353217 |
| Type:
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Journal articleJournal article |
| Participant(s):
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Forfatter:
Ishibashi, W.
ISDC, Geneve Observatory
Forfatter:
Bozzo, Enrico
ISDC, Geneve Observatory
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| Abstract:
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During the observations of the SNR RXJ1713.7-3946, performed from 2010 August 12 at 00:14 to 2010 August 14 at 16:02 (UTC; PI R. Terrier), INTEGRAL detected hard X-ray emission from a position consistent with that of the recently discovered transient XMMSL1 J171900.4-353217.
The source was within the IBIS/ISGRI FOV for a total exposure time of 170 ks and was detected at a significance level of 6.5 sigma (20-40 keV energy band). The best fit position obtained from the OSA software is at RA: 259.738 DEC: -35.508 (J2000), with an associated error of 3.9 arcmin. The ISGRI spectrum is best fit with a power-law model of photon index Gamma=2.7-0.9+1.3 and the estimated flux is 3.0e-11 ergs/cm^2/s (20-40 keV energy band). The count-rate of the source slightly increased in the latest part of the observation. XMMSL1 J171900.4-353217 was not detected in the ISGRI hard energy band (40-80 keV) and the estimated 3 sigma upper limit on the X-ray flux is 4 mCrab.
The source was also in the Jem-X FOV (total exposure time 24 ks), but not detected. We estimated a 3 sigma upper limit on the source flux of 6 mCrab (3-10 keV energy band).
Further INTEGRAL observations of the region comprising XMMSL1 J171900.4-353217 are ongoing. A Swift follow-up observation has been requested. |
| Published:
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in journal: The Astronomer's Telegram, vol: 2803, pages: #2803, 2010 |
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