Discovery of the optical counterpart to the CGRO transient GRO J1008 - 57

Coe, M. J.; Roche, P.; Everall, C.; Fabregat, J.; Buckley, D.; Smith, R. C.; Reynolds, A. P.; Jupp, Ian; MacGillivray, H. T.

doi:10.1093/mnras/270.1.l57

Cited by 41 publications

(28 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An optical counterpart was identified with a B1-B2 Ve star (Coe et al, 2007) at a distance of ∼ 5 kpc (Coe et al, 1994a). Orbital parameters were determined using data from different observatories as follows: P orb = 249.46 ± 0.10 d, ax sin i = 530 ± 60 lt-s, ω = −26 ± 8 deg, e = 0.68 ± 0.02 (Levine and Corbet, 2006a;Coe et al, 2007;Kuehnel et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

High-mass X-ray binaries in the Milky Way

Walter

Lutovinov

Bozzo

et al. 2015

Astron Astrophys Rev

234

View full text Add to dashboard Cite

High-mass X-ray binaries are fundamental in the study of stellar evolution, nucleosynthesis, structure and evolution of galaxies and accretion processes. Hard X-rays observations by INTEGRAL and Swift have broadened significantly our understanding in particular for the super-giant systems in the Milky Way, which number has increased by almost a factor of three. INTEGRAL played a crucial role in the discovery, study and understanding of heavily obscured systems and of fast X-ray transients. Most super-giant systems can now be classified in three categories: classical/obscured, eccentric and fast transient.The classical systems feature low eccentricity and variability factor of ∼ 10 3 , mostly driven by hydrodynamic phenomena occurring on scales larger than the accretion radius. Among them, systems with short orbital periods and close to Roche-Lobe overflow or with slow winds, appear highly obscured. In eccentric systems, the variability amplitude can reach even higher factors, because of the contrast of the wind density along the orbit. Four super-giant systems, featuring fast outbursts, very short orbital periods and anomalously low accretion rates, are not yet understood.Simulations of the accretion processes on relatively large scales have progressed and reproduce parts of the observations. The combined effects of wind

show abstract

Section: Discussionmentioning

confidence: 99%

High-mass X-ray binaries in the Milky Way

Walter

Lutovinov

Bozzo

et al. 2015

Astron Astrophys Rev

234

View full text Add to dashboard Cite

show abstract

“…To investigate this possibility all the objects on the frame were measured in both the R band and Ha, and the two sets of instrumental magnitudes plotted against each other. This approach has been very successful in identifying counterparts to high-mass X-ray binaries (see, for example, Coe et al 1994b). In this case the result revealed no obvious source of Ha emission in the field.…”

Section: Rx J18384-0301mentioning

confidence: 90%

Deep infrared and optical studies of the fields of three proposed TŻO remnants

Coe¹,

Pightling²

1998

Monthly Notices of the Royal Astronomical Society

Self Cite

View full text Add to dashboard Cite

A B S T R A C TDeep infrared and optical images are presented of three proposed remnants of Thorne-Żytkow objects (TŻOs). In particular, the infrared data go several infrared magnitudes deeper than previous observations, and in at least one case reveal the existence of weak objects within the error circles. It is argued, however, that none of the objects is likely to be the binary companion to the X-ray source in that region. These data present severe limits on any possible star or residual envelope at the distances of the respective X-ray objects.

show abstract

“…The neutron star in the transient high mass X-ray binary GRO J1008−57 orbits its Be-star companion of type B0e [11] with an eccentricity of 0.68 [12]. By analyzing the arrival times of the 93.7 spulsations as detected during outbursts in 2005 and 2007 by RXTE, Swift, and Suzaku, we were able to improve the time of the periastron passage and the orbital period to 249.48(4) d [10].…”

Section: Gro J1008−57mentioning

confidence: 99%

Luminosity dependent accretion state change in GRO J1008–57

Kühnel

Müller

Kreykenbohm

et al. 2014

EPJ Web of Conferences

View full text Add to dashboard Cite

Abstract. In a former publication, we have analyzed the transient neutron star X-ray binary GRO J1008−57 using all available RXTE-, Swift-, and Suzaku-data. As we have found, the source's spectral components, i.e., a power-law with high exponential cutoff and a black-body, are strongly correlated with the hard X-ray flux (15-50 keV). We update the analytical description of these dependence, including a change in the photon index behaviour from a flat to a logarithmic function. The flux, where the change occurs, is consistent with the onset of the black-body emission. Thus, a change of the accretion state always occurs in GRO J1008−57 at a particular flux level.

show abstract

Discovery of the optical counterpart to the CGRO transient GRO J1008 - 57

Cited by 41 publications

References 0 publications

High-mass X-ray binaries in the Milky Way

High-mass X-ray binaries in the Milky Way

Deep infrared and optical studies of the fields of three proposed TŻO remnants

Luminosity dependent accretion state change in GRO J1008–57

Contact Info

Product

Resources

About