Abstract
A previously unknown X-ray transient, IGR J01363+6610, was discovered by the IBIS/ISGRI telescope on April 19, 2004 during INTEGRAL observations dedicated to the Galactic Plane Scan.
The source position was R.A.=01h36m18s, Decl.=+66d10m36s (equinox 2000.0, position uncertainty 2'). It was within the IBIS field-of-view during 4 subsequent pointings (~2.3 h) and was detected with the total S/N ratio equal to 8.6 and an average flux 17+/-2 mCrab in the 17-45 keV band.
The detection was confirmed by the JEM-X telescope during one of the pointings (when the source was near the center of the JEM-X field-of-view). The JEM-X position was R.A.=01h36m04s, Decl.=+66d11m50s (position uncertainty 2'), the flux was about 9 mCrab in the 8-15 keV band.
The source was not detected with IBIS/ISGRI during next GPS observations of the region on May 1, 2004. The 3-sigma upper limit was 11 mCrab in the 17-45 keV band. The source was outside the JEM-X field-of-view that time.
We encourage observations of this source at other wavelengths.
The source position was R.A.=01h36m18s, Decl.=+66d10m36s (equinox 2000.0, position uncertainty 2'). It was within the IBIS field-of-view during 4 subsequent pointings (~2.3 h) and was detected with the total S/N ratio equal to 8.6 and an average flux 17+/-2 mCrab in the 17-45 keV band.
The detection was confirmed by the JEM-X telescope during one of the pointings (when the source was near the center of the JEM-X field-of-view). The JEM-X position was R.A.=01h36m04s, Decl.=+66d11m50s (position uncertainty 2'), the flux was about 9 mCrab in the 8-15 keV band.
The source was not detected with IBIS/ISGRI during next GPS observations of the region on May 1, 2004. The 3-sigma upper limit was 11 mCrab in the 17-45 keV band. The source was outside the JEM-X field-of-view that time.
We encourage observations of this source at other wavelengths.
| Original language | English |
|---|---|
| Publication date | 11 May 2004 |
| Publication status | Published - 11 May 2004 |
| Series | The Astronomer's telegram |
|---|---|
| Number | ATel #275 |
Keywords
- Radio
- Infra-red
- Optical
- X-ray
- Gamma ray
- Binary
- Black hole
- Neutron star
- Transient
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