INTEGRAL discovered a new hard X-ray source: IGRJ17511-3057

C. Baldovin; E. Kuulkers; C. Ferrigno; E. Bozzo; J. Chenevez; S. Brandt; V. Beckmann; A. Bird; A. Domingo; K. Ebisawa; P. Jonker; P. Kretschmar; C. Markwardt; T. Oosterbroek; A. Paizis; D. Risquez; C. Sanchez-Fernandez; S. Shaw; R. Wijnands

INTEGRAL discovered a new hard X-ray source: IGRJ17511-3057

C. Baldovin, E. Kuulkers, C. Ferrigno, E. Bozzo, J. Chenevez, S. Brandt, V. Beckmann, A. Bird, A. Domingo, K. Ebisawa, P. Jonker, P. Kretschmar, C. Markwardt, T. Oosterbroek, A. Paizis, D. Risquez, C. Sanchez-Fernandez, S. Shaw, R. Wijnands

Research output: Other contribution › Net publication - Internet publication › Research

Abstract

During the latest observations of the Galactic Bulge monitoring (see ATel #438), carried out between 2009-09-12 03:21:34 and 2009-09-12 05:27:22 (UTC), INTEGRAL discovered a new bright hard X-ray source, which we designate IGRJ17511-3057. The source is detected in the INTEGRAL/IBIS mosaic image with a significance of 14 sigma in the 20-40 keV energy band, and 7 sigma in the 40-80 keV energy band. The corresponding count rates in these bands are 4.2+/0.3 cts/s (28 mCrab) and 1.8+/-0.3 cts/s (25 mCrab), respectively. The source is also detected in the JEM-X mosaic in the three energy bands 3-7 keV, 7-11 keV, and 11-20 keV. The source flux is ~20 mCrab and the detection significance is 3 sigma in all bands. The best determined source position is RA: 267.811 DEC: -30.954 (J2000), with a 90% error radius of 2.0 arcmin. The combined IBIS/ISGRI and JEM-X spectrum in the 3-100 keV energy range is well described by a single power-law with photon index 2.0+/-0.2. The source flux is 5.7e-10 erg/cm2/s in the 3-20 keV energy band and 4.8e-10 erg/cm2/s in the 20-100 keV energy band.

Original language	English
Publication date	13 Sept 2009
Publication status	Published - 13 Sept 2009

Series	The Astronomer´s Telegram
Number	ATel #2196

Keywords

Transients
Gamma Ray
X-ray
Request for Observations

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Baldovin, C., Kuulkers, E., Ferrigno, C., Bozzo, E., Chenevez, J., Brandt, S., Beckmann, V., Bird, A., Domingo, A., Ebisawa, K., Jonker, P., Kretschmar, P., Markwardt, C., Oosterbroek, T., Paizis, A., Risquez, D., Sanchez-Fernandez, C., Shaw, S., & Wijnands, R. (2009, Sept 13). INTEGRAL discovered a new hard X-ray source: IGRJ17511-3057. The Astronomer´s Telegram No. ATel #2196 http://www.astronomerstelegram.org/?read=2196

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title = "INTEGRAL discovered a new hard X-ray source: IGRJ17511-3057",

abstract = "During the latest observations of the Galactic Bulge monitoring (see ATel #438), carried out between 2009-09-12 03:21:34 and 2009-09-12 05:27:22 (UTC), INTEGRAL discovered a new bright hard X-ray source, which we designate IGRJ17511-3057. The source is detected in the INTEGRAL/IBIS mosaic image with a significance of 14 sigma in the 20-40 keV energy band, and 7 sigma in the 40-80 keV energy band. The corresponding count rates in these bands are 4.2+/0.3 cts/s (28 mCrab) and 1.8+/-0.3 cts/s (25 mCrab), respectively. The source is also detected in the JEM-X mosaic in the three energy bands 3-7 keV, 7-11 keV, and 11-20 keV. The source flux is ~20 mCrab and the detection significance is 3 sigma in all bands. The best determined source position is RA: 267.811 DEC: -30.954 (J2000), with a 90% error radius of 2.0 arcmin. The combined IBIS/ISGRI and JEM-X spectrum in the 3-100 keV energy range is well described by a single power-law with photon index 2.0+/-0.2. The source flux is 5.7e-10 erg/cm2/s in the 3-20 keV energy band and 4.8e-10 erg/cm2/s in the 20-100 keV energy band.",

keywords = "Transients, Gamma Ray, X-ray, Request for Observations",

author = "C. Baldovin and E. Kuulkers and C. Ferrigno and E. Bozzo and J. Chenevez and S. Brandt and V. Beckmann and A. Bird and A. Domingo and K. Ebisawa and P. Jonker and P. Kretschmar and C. Markwardt and T. Oosterbroek and A. Paizis and D. Risquez and C. Sanchez-Fernandez and S. Shaw and R. Wijnands",

year = "2009",

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TY - ICOMM

T1 - INTEGRAL discovered a new hard X-ray source: IGRJ17511-3057

AU - Baldovin, C.

AU - Kuulkers, E.

AU - Ferrigno, C.

AU - Bozzo, E.

AU - Chenevez, J.

AU - Brandt, S.

AU - Beckmann, V.

AU - Bird, A.

AU - Domingo, A.

AU - Ebisawa, K.

AU - Jonker, P.

AU - Kretschmar, P.

AU - Markwardt, C.

AU - Oosterbroek, T.

AU - Paizis, A.

AU - Risquez, D.

AU - Sanchez-Fernandez, C.

AU - Shaw, S.

AU - Wijnands, R.

PY - 2009/9/13

Y1 - 2009/9/13

N2 - During the latest observations of the Galactic Bulge monitoring (see ATel #438), carried out between 2009-09-12 03:21:34 and 2009-09-12 05:27:22 (UTC), INTEGRAL discovered a new bright hard X-ray source, which we designate IGRJ17511-3057. The source is detected in the INTEGRAL/IBIS mosaic image with a significance of 14 sigma in the 20-40 keV energy band, and 7 sigma in the 40-80 keV energy band. The corresponding count rates in these bands are 4.2+/0.3 cts/s (28 mCrab) and 1.8+/-0.3 cts/s (25 mCrab), respectively. The source is also detected in the JEM-X mosaic in the three energy bands 3-7 keV, 7-11 keV, and 11-20 keV. The source flux is ~20 mCrab and the detection significance is 3 sigma in all bands. The best determined source position is RA: 267.811 DEC: -30.954 (J2000), with a 90% error radius of 2.0 arcmin. The combined IBIS/ISGRI and JEM-X spectrum in the 3-100 keV energy range is well described by a single power-law with photon index 2.0+/-0.2. The source flux is 5.7e-10 erg/cm2/s in the 3-20 keV energy band and 4.8e-10 erg/cm2/s in the 20-100 keV energy band.

AB - During the latest observations of the Galactic Bulge monitoring (see ATel #438), carried out between 2009-09-12 03:21:34 and 2009-09-12 05:27:22 (UTC), INTEGRAL discovered a new bright hard X-ray source, which we designate IGRJ17511-3057. The source is detected in the INTEGRAL/IBIS mosaic image with a significance of 14 sigma in the 20-40 keV energy band, and 7 sigma in the 40-80 keV energy band. The corresponding count rates in these bands are 4.2+/0.3 cts/s (28 mCrab) and 1.8+/-0.3 cts/s (25 mCrab), respectively. The source is also detected in the JEM-X mosaic in the three energy bands 3-7 keV, 7-11 keV, and 11-20 keV. The source flux is ~20 mCrab and the detection significance is 3 sigma in all bands. The best determined source position is RA: 267.811 DEC: -30.954 (J2000), with a 90% error radius of 2.0 arcmin. The combined IBIS/ISGRI and JEM-X spectrum in the 3-100 keV energy range is well described by a single power-law with photon index 2.0+/-0.2. The source flux is 5.7e-10 erg/cm2/s in the 3-20 keV energy band and 4.8e-10 erg/cm2/s in the 20-100 keV energy band.

KW - Transients

KW - Gamma Ray

KW - X-ray

KW - Request for Observations

M3 - Net publication - Internet publication

T3 - The Astronomer´s Telegram

ER -

INTEGRAL discovered a new hard X-ray source: IGRJ17511-3057

Abstract

Keywords

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