3 New X-Ray Transients in M31

Bibcode
2007ATel.1171....1G
Galache, J. L.; Garcia, M. R.; Steeghs, D.; Torres, M. A. P.; Murray, S. S.; Williams, B. F.
Bibliographical reference

The Astronomer's Telegram, #1171

Advertised on:
8
2007
Number of authors
6
IAC number of authors
0
Citations
3
Refereed citations
2
Description
We report the discovery of 3 previously unseen X-ray point sources detected in a 5ks Chandra/ACIS observation starting on 2007-07-31.14 UT as part of our ongoing Chandra/HST M31 transient program. The sources were detected at the edge of the FoV, on the ACIS-S chips, which explains the larger than usual positional errors. Notes: - All coordinates are subject to the standard bore-sight correction, which in our case is less than our centroiding errors.
Type
Non-refereed
Black holes

It may interest you

  • Non-refereed
    MAAT: an IFU for GTC optimized using spectrograph wavefront measurements and superoptimization
    The Mirror-slicer Array for Astronomical Transients (MAAT) is an IFU now being manufactured for the OSIRIS spectrograph on the 10.4-m GRANTECAN (GTC) telescope at La Palma. It is based on the Advanced Image Slicer (AIS) concept as are MUSE and KMOS on the VLT (among many others). Very significant changes to the design had to be made due in part to
    Content, Robert et al.

    Advertised on:

    7
    2024
    Bibcode
    2024SPIE13096E..95C
    Citations
    0
  • Non-refereed
    JWST observations of Chiron: A unique active Centaur beyond 18 AU
    Chiron is the second-largest Centaur, with an effective diameter of 210 km, and is among the most well-studied minor bodies in the middle and outer Solar System. Notably, Chiron belongs to the enigmatic subpopulation of active Centaurs and has displayed cometary activity several times since its discovery. In March 2021, Chiron underwent an outburst
    Wong, Ian et al.

    Advertised on:

    10
    2024
    Bibcode
    2024DPS....5640507W
    Citations
    0
  • Non-refereed
    FRIDA: diffraction-limited imaging and integral-field spectroscopy for the GTC
    FRIDA is a diffraction-limited imager and integral-field spectrograph for the adaptive-optics focus of the Gran Telescopio Canarias. In imaging mode FRIDA provides scales of 10, 20 and 40 mas/pixel and in IFS mode spectral resolutions of about 1200, 4000 and 30,000. Coronographic masks are available in both modes for highcontrast images. FRIDA is
    Watson, Alan M. et al.

    Advertised on:

    7
    2024
    Bibcode
    2024SPIE13096E..1YW
    Citations
    0