INTEGRAL reports new outbursts from the X-ray transients GRS 1747-312 and the Rapid Burster

J. Chenevez; C. Sanchez-Fernandez

INTEGRAL reports new outbursts from the X-ray transients GRS 1747-312 and the Rapid Burster

J. Chenevez^*
, C. Sanchez-Fernandez

^*Corresponding author for this work

European Space Astronomy Centre

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

247 Downloads (Orbit)

Abstract

During observations of the Galactic Center region (PI J. Wilms) performed between UT 2013 October 20 11:20 and Oct. 21 00:33, INTEGRAL detected renewed activity from the two transient X-ray bursters GRS 1747-312 and 4U 1730-335 (aka the Rapid Burster).

GRS 1747-312 was seen by the twin JEM-X monitors in combined mosaics at a detection significance level of 13 sigma in the 3-10 keV energy band, and 8 sigma in the 10-25 keV energy band. The average effective exposure on the source is 15.3 ks.
The measured fluxes are 20 +/-1.5 mCrab (3-10 keV), and 12 +/-1.5 mCrab (10-25 keV).
The source is not detected by the IBIS/ISGRI camera, and a 3 sigma upper limit of 11 mCrab is estimated in the 20-40 keV energy band for an effective exposure of 8.2 ks.
No burst activity is recorded.

The Rapid Burster was seen in the same JEM-X mosaics at 34 sigma and 24 sigma in the 3-10 keV and 10-25 keV energy bands, respectively. The average effective exposure on this source is 5.8 ks.
The measured fluxes are 180 +/-6 mCrab (3-10 keV) and 105 +/-4 mCrab (10-25 keV).
The source is also detected by ISGRI at a flux of 16 +/-3 mCrab in the 20-40 keV energy band.
Burst activity is detected and the related analysis is on-going.

We thank the ISDC INTEGRAL shift team for their help with the analysis of the ISGRI data.

Original language	English
Publication date	21 Oct 2013
Publication status	Published - 21 Oct 2013

Series	The Astronomer's telegram
Number	ATel #5494

Access to Document

ATel 5494Final published version, 97.5 KB

http://www.astronomerstelegram.org/?read=5494

OpenUrl availability

Check availability in DTU Findit

Cite this

@misc{74f02a8ef3434a249cdcc256f4af8cd5,

title = "INTEGRAL reports new outbursts from the X-ray transients GRS 1747-312 and the Rapid Burster",

abstract = "During observations of the Galactic Center region (PI J. Wilms) performed between UT 2013 October 20 11:20 and Oct. 21 00:33, INTEGRAL detected renewed activity from the two transient X-ray bursters GRS 1747-312 and 4U 1730-335 (aka the Rapid Burster). GRS 1747-312 was seen by the twin JEM-X monitors in combined mosaics at a detection significance level of 13 sigma in the 3-10 keV energy band, and 8 sigma in the 10-25 keV energy band. The average effective exposure on the source is 15.3 ks. The measured fluxes are 20 +/-1.5 mCrab (3-10 keV), and 12 +/-1.5 mCrab (10-25 keV). The source is not detected by the IBIS/ISGRI camera, and a 3 sigma upper limit of 11 mCrab is estimated in the 20-40 keV energy band for an effective exposure of 8.2 ks. No burst activity is recorded. The Rapid Burster was seen in the same JEM-X mosaics at 34 sigma and 24 sigma in the 3-10 keV and 10-25 keV energy bands, respectively. The average effective exposure on this source is 5.8 ks. The measured fluxes are 180 +/-6 mCrab (3-10 keV) and 105 +/-4 mCrab (10-25 keV). The source is also detected by ISGRI at a flux of 16 +/-3 mCrab in the 20-40 keV energy band. Burst activity is detected and the related analysis is on-going. We thank the ISDC INTEGRAL shift team for their help with the analysis of the ISGRI data. ",

author = "J. Chenevez and C. Sanchez-Fernandez",

year = "2013",

month = oct,

day = "21",

language = "English",

series = "The Astronomer's telegram",

publisher = "R. Rutledge",

number = "ATel \#5494",

type = "Other",

}

TY - ICOMM

T1 - INTEGRAL reports new outbursts from the X-ray transients GRS 1747-312 and the Rapid Burster

AU - Chenevez, J.

AU - Sanchez-Fernandez, C.

PY - 2013/10/21

Y1 - 2013/10/21

N2 - During observations of the Galactic Center region (PI J. Wilms) performed between UT 2013 October 20 11:20 and Oct. 21 00:33, INTEGRAL detected renewed activity from the two transient X-ray bursters GRS 1747-312 and 4U 1730-335 (aka the Rapid Burster). GRS 1747-312 was seen by the twin JEM-X monitors in combined mosaics at a detection significance level of 13 sigma in the 3-10 keV energy band, and 8 sigma in the 10-25 keV energy band. The average effective exposure on the source is 15.3 ks. The measured fluxes are 20 +/-1.5 mCrab (3-10 keV), and 12 +/-1.5 mCrab (10-25 keV). The source is not detected by the IBIS/ISGRI camera, and a 3 sigma upper limit of 11 mCrab is estimated in the 20-40 keV energy band for an effective exposure of 8.2 ks. No burst activity is recorded. The Rapid Burster was seen in the same JEM-X mosaics at 34 sigma and 24 sigma in the 3-10 keV and 10-25 keV energy bands, respectively. The average effective exposure on this source is 5.8 ks. The measured fluxes are 180 +/-6 mCrab (3-10 keV) and 105 +/-4 mCrab (10-25 keV). The source is also detected by ISGRI at a flux of 16 +/-3 mCrab in the 20-40 keV energy band. Burst activity is detected and the related analysis is on-going. We thank the ISDC INTEGRAL shift team for their help with the analysis of the ISGRI data.

AB - During observations of the Galactic Center region (PI J. Wilms) performed between UT 2013 October 20 11:20 and Oct. 21 00:33, INTEGRAL detected renewed activity from the two transient X-ray bursters GRS 1747-312 and 4U 1730-335 (aka the Rapid Burster). GRS 1747-312 was seen by the twin JEM-X monitors in combined mosaics at a detection significance level of 13 sigma in the 3-10 keV energy band, and 8 sigma in the 10-25 keV energy band. The average effective exposure on the source is 15.3 ks. The measured fluxes are 20 +/-1.5 mCrab (3-10 keV), and 12 +/-1.5 mCrab (10-25 keV). The source is not detected by the IBIS/ISGRI camera, and a 3 sigma upper limit of 11 mCrab is estimated in the 20-40 keV energy band for an effective exposure of 8.2 ks. No burst activity is recorded. The Rapid Burster was seen in the same JEM-X mosaics at 34 sigma and 24 sigma in the 3-10 keV and 10-25 keV energy bands, respectively. The average effective exposure on this source is 5.8 ks. The measured fluxes are 180 +/-6 mCrab (3-10 keV) and 105 +/-4 mCrab (10-25 keV). The source is also detected by ISGRI at a flux of 16 +/-3 mCrab in the 20-40 keV energy band. Burst activity is detected and the related analysis is on-going. We thank the ISDC INTEGRAL shift team for their help with the analysis of the ISGRI data.

M3 - Net publication - Internet publication

T3 - The Astronomer's telegram

ER -

INTEGRAL reports new outbursts from the X-ray transients GRS 1747-312 and the Rapid Burster

Abstract

Access to Document

OpenUrl availability

Fingerprint

Cite this