Bibcode
Muñoz-Darias, T.; Casares, J.; Martínez-Pais, I. G.
Bibliographical reference
Monthly Notices of the Royal Astronomical Society, Volume 385, Issue 4, pp. 2205-2209.
Advertised on:
4
2008
Citations
113
Refereed citations
105
Description
We apply the K-correction to the black hole low-mass X-ray binary (LMXB)
GX 339-4 which implies MX >= 6Msolar by only
assuming that the companion is more massive than ~0.17Msolar,
the lower limit allowed by applying a `stripped-giant' model. This
evolutionary model successfully reproduces the observed properties of
the system. We obtain a maximum mass for the companion of M2
<= 1.1Msolar and an upper limit to the mass ratio of
q(=M2/MX) <= 0.125. The high X-ray activity
displayed by the source suggests a relatively large mass transfer rate
which, according to the model, results in M2 >~
0.3Msolar and MX >~ 7Msolar. We have
also applied this scenario to the black hole binary XTE J1550-564, which
has a similar orbital period but the donor is detected
spectroscopically. The model successfully reproduces the observed
stellar parameters.
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Black holes, neutron stars, white dwarfs and their local environment
Accreting black-holes and neutron stars in X-ray binaries provide an ideal laboratory for exploring the physics of compact objects, yielding not only confirmation of the existence of stellar mass black holes via dynamical mass measurements, but also the best opportunity for probing high-gravity environments and the physics of accretion; the most
Montserrat
Armas Padilla