XMM-Newton Observations of V404 Cygni in Quiescence

Bibcode
2006HEAD....9.0172B
Bradley, Charles K.; Hynes, R. I.; Kong, A. K.; Casares, J.; Charles, P.; Fender, R.; Gallo, E.; Garcia, M. R.; Haswell, C. A.; Robinson, E. L.; Rupen, M. R.; Shahbaz, T.; Zurita, C.
Referencia bibliográfica

American Astronomical Society, HEAD meeting #9, #1.72; Bulletin of the American Astronomical Society, Vol. 38, p.340

Fecha de publicación:
9
2006
Número de autores
13
Número de autores del IAC
0
Número de citas
0
Número de citas referidas
0
Descripción
We present a new 40ks XMM observation of the black hole X-ray nova V404 Cyg in quiescence. Its quiescent spectra can be best fitted by a power-law with slope Gamma 2 as found previously. V404 Cyg was roughly equal in luminosity compared to the previous observation of Chandra with variability of a factor of 4 during the observation. We find no evidence for the presence of iron fluorescent emission, nor emission from more highly ionized states and discuss constraints this presents upon the accretion flow geometry. This research was supported by the XMM-Newton Guest Observer Program.
Tipo
Sin árbitro

Te puede interesar

  • Sin árbitro
    Identification of Superclusters and their Properties in the Sloan Digital Sky Survey
    Superclusters are the largest massive structures in the cosmic web on tens to hundreds of megaparsecs (Mpc) scales. They are the largest assembly of galaxy clusters in the Universe. Apart from a few detailed studies of such structures, their evolutionary mechanism is still an open question. In order to address and answer the relevant questions, a
    Sankhyayan, Shishir et al.

    Fecha de publicación:

    1
    2024
    Bibcode
    2024asi..confP..81S
    Número de citas
    0
  • Sin árbitro
    Rapid multiwavelength variability reveals jet emission in the black hole binary V404 Cygni in quiescence
    Spitzer Space Telescope observations of several quiescent black hole low mass X-ray binaries (LMXBs) have shown mid-infrared excesses above the emission of a companion star. The excess has been proposed to originate from either a relativistic jet or circumbinary disk. If the mid-IR originates in a jet, then it probes the region closest to the black
    Borowski, Eric et al.

    Fecha de publicación:

    5
    2024
    Bibcode
    2024HEAD...2130105B
    Número de citas
    0
  • Sin árbitro
    KIC 9163796 - Age determination by asteroseismic grid modelling for an oscillating red giant binary
    The age of a star cannot be measured but only inferred from observational quantities related to age. A wellknown stellar age greatly impacts our understanding of evolution on much larger scales, such as exoplanetary systems or the history of the Milky Way. For stars in the red-giant phase, comparison of observations with evolutionary models
    Grossmann, D. H. et al.

    Fecha de publicación:

    3
    2024
    Bibcode
    2024aecc.conf....7G
    Número de citas
    0