On the masses and evolutionary status of the black hole binary GX 339-4: a twin system of XTE J1550-564?
On the masses and evolutionary status of the black hole binary GX 339-4: a twin system of XTE J1550-564?
We apply the K-correction to the black hole low-mass X-ray binary (LMXB) GX 339-4 which implies MX? 6 M? by only assuming that the companion is more massive than ?0.17 M?, 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? 1.1 M? 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? 0.3 M? and MX? 7 M?. 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
accretion, accretion discs, binaries: close, stars: individuals: gx 339-4, stars: individuals: xte J1550-564, x-rays: binaries
2205-2209
Munoz-Darias, T.
9936bca3-962b-4b22-acf5-7b08898d0433
Casares, J.
e57ae499-4f86-421a-bcb1-67d17d2bcbfc
Martinez-Pais, I.G.
4c7ece15-a022-4bd5-9558-49c03242b82b
21 April 2008
Munoz-Darias, T.
9936bca3-962b-4b22-acf5-7b08898d0433
Casares, J.
e57ae499-4f86-421a-bcb1-67d17d2bcbfc
Martinez-Pais, I.G.
4c7ece15-a022-4bd5-9558-49c03242b82b
Munoz-Darias, T., Casares, J. and Martinez-Pais, I.G.
(2008)
On the masses and evolutionary status of the black hole binary GX 339-4: a twin system of XTE J1550-564?
Monthly Notices of the Royal Astronomical Society, 385 (4), .
(doi:10.1111/j.1365-2966.2008.12987.x).
Abstract
We apply the K-correction to the black hole low-mass X-ray binary (LMXB) GX 339-4 which implies MX? 6 M? by only assuming that the companion is more massive than ?0.17 M?, 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? 1.1 M? 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? 0.3 M? and MX? 7 M?. 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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0801.3268v1.pdf
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Published date: 21 April 2008
Keywords:
accretion, accretion discs, binaries: close, stars: individuals: gx 339-4, stars: individuals: xte J1550-564, x-rays: binaries
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Astronomy Group
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Local EPrints ID: 339068
URI: http://eprints.soton.ac.uk/id/eprint/339068
ISSN: 1365-2966
PURE UUID: 8f057467-fc0e-421d-a13e-21736fd02e0a
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Date deposited: 23 May 2012 13:40
Last modified: 14 Mar 2024 11:09
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Author:
T. Munoz-Darias
Author:
J. Casares
Author:
I.G. Martinez-Pais
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