Unusual optical and X-ray flaring activity in GX 339-4

Bibcode
2008ATel.1586....1R
Russell, D. M.; Altamirano, D.; Lewis, F.; Roche, P.; Markwardt, C. B.; Fender, R. P.
Bibliographical reference

The Astronomer's Telegram, #1586

Advertised on:
6
2008
Number of authors
6
IAC number of authors
0
Citations
10
Refereed citations
5
Description
Since September 2007 we have been monitoring the optical counterpart (V, R and i-bands) of the black hole X-ray binary GX 339-4 with the Faulkes Telescope South situated at Siding Spring in Australia. The source has continued to decline from its 2006-7 outburst (ATel #968) until May 2008, in which a period of strong variability began. At its faintest flux level, on 2008-04-29 (MJD 54585.51) the magnitudes were V = 18.39 +- 0.06; R = 18.10 +- 0.03; i = 17.22 +- 0.03.
Type
Non-refereed
Black holes

It may interest you

  • Non-refereed
    The TESS TTV Follow-up Program: Revealing Volatile-Rich Terrestrial Planets Around M Stars
    Models predict that water-rich planets may be common around low-mass stars, but definitive evidence for the existence of water worlds has remained elusive. Recent JWST observations of sub-Neptune sized planets orbiting nearby M dwarfs found atmospheres enriched in CH4, CO2 and H2O, but the enrichment mechanism is debated. To answer this question
    Greklek-McKeon, Michael et al.

    Advertised on:

    7
    2024
    Bibcode
    2024tsc3.confE..21G
    Citations
    0
  • Non-refereed
    The instrumentation plan of the 10.4m GTC telescope
    The 10.4m Gran Telescopio Canarias (GTC) was designed to be a versatile telescope, able to serve a wide scientific community. To this aim, various focal stations have been equipped, including a Cassegrain, two Nasmyth foci, and four folded-Cassegrain stations. This allows an ambitious instrumentation plan to be developed. We present the latest
    Corradi, Romano L. M. et al.

    Advertised on:

    7
    2024
    Bibcode
    2024SPIE13096E..0HC
    Citations
    0
  • Non-refereed
    Design and fabrication of fold mirror (M3) system for New Robotic Telescope
    The New Robotic Telescope (NRT) is an autonomous telescope that can operate multiple instruments at the Cassegrain focal station and the straight-through port. The optical beam is directed to the ports by a fold mirror subsystem in the focal station assembly. The fold mirror is elliptical in shape, manufactured by Instituto Nazionale di Astrofisica
    Ranjbar, Ali et al.

    Advertised on:

    8
    2024
    Bibcode
    2024SPIE13094E..2HR
    Citations
    0