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 Gravitational-wave Optical Transient Observer (GOTO)
    The Gravitational-wave Optical Transient Observer (GOTO) is a project dedicated to identifying optical counterparts to gravitational-wave detections using a network of dedicated, wide-field telescopes. After almost a decade of design, construction, and commissioning work, the GOTO network is now fully operational with two antipodal sites: La Palma
    Dyer, Martin J. et al.

    Advertised on:

    8
    2024
    Bibcode
    2024SPIE13094E..1XD
    Citations
    1
  • Non-refereed
    Innovative solution for upgrading commercial bearings for use in cryogenic instruments
    Infrared instruments for astronomy require many bearings for motion that must move in cryogenic conditions. There are poor and expensive options for this, and the companies with qualified bearings only supply after a long time. To attend these constrains, the Instituto de Astrofísica de Canarias (IAC) started to develop a procedure to upgrade
    Luján, Alejandro et al.

    Advertised on:

    8
    2024
    Bibcode
    2024SPIE13100E..73L
    Citations
    0
  • Non-refereed
    NIRPS first light and early science: breaking the 1 m/s RV precision barrier at infrared wavelengths
    The Near-InfraRed Planet Searcher or NIRPS is a precision radial velocity spectrograph developed through collaborative efforts among laboratories in Switzerland, Canada, Brazil, France, Portugal and Spain. NIRPS extends to the 0.98-1.8 μm domain of the pioneering HARPS instrument at the La Silla 3.6-m telescope in Chile and it has achieved
    Artigau, Étienne et al.

    Advertised on:

    7
    2024
    Bibcode
    2024SPIE13096E..0CA
    Citations
    0