November 2007 Chandra Observations of X-Ray Transients in M31

Bibcode
2007ATel.1328....1G
Galache, J. L.; Garcia, M. R.; Torres, M. A. P.; Murray, S. S.; Steeghs, D.; Williams, B. F.
Referencia bibliográfica

The Astronomer's Telegram, #1328

Fecha de publicación:
12
2007
Número de autores
6
Número de autores del IAC
0
Número de citas
3
Número de citas referidas
2
Descripción
As part of our ongoing Chandra/HST M31 transient program we report on two active sources recently detected in two Chandra ACIS observations. Source 1 We present two 5ks ACIS-I observations of the ongoing outburst of the M31 transient source CXOM31 J004217.0+411508 (r3-46). Using an absorbed powerlaw model with photon index = 1.7 and nH = 6.6e20 atoms/cm2 at a distance of 780 kpc (as reported by Henze et al.
Tipo
Sin árbitro
Agujeros negros

Te puede interesar

  • Sin árbitro
    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.

    Fecha de publicación:

    7
    2024
    Bibcode
    2024SPIE13096E..95C
    Número de citas
    0
  • Sin árbitro
    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.

    Fecha de publicación:

    10
    2024
    Bibcode
    2024DPS....5640507W
    Número de citas
    0
  • Sin árbitro
    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.

    Fecha de publicación:

    7
    2024
    Bibcode
    2024SPIE13096E..1YW
    Número de citas
    0