GR Muscae, also known as 2S 1254-690 is a binary star system in the constellationMusca composed of a neutron star of between 1.2 and 1.8 times the mass of the Sun and a low-mass star likely to be around the mass of the Sun in close orbit.[2] A magnitude 19 blue star was pinpointed as the optical counterpart of the X-ray source in 1978.[3] Its apparent magnitude varies from 18 to 19.1 over a period of 0.16 days.[4]
The neutron star has an accretion disk that takes around 6.74 days to complete a revolution, and is inclined at an angle to the incoming stream of material from the donor star.[2]
^ abcCornelisse, R.; Kotze, M.M.; Casares, J.; Charles, P.A.; Hakala, P.J. (2013). "The Origin of the Tilted Disc in the Low-mass X-ray Binary GR Mus (XB 1254-690)". Monthly Notices of the Royal Astronomical Society. 436 (1): 910–20. arXiv:1309.4972. Bibcode:2013MNRAS.436..910C. doi:10.1093/mnras/stt1654. S2CID 119242800.
^Griffiths, R.E.; Gursky, H.; Schwartz, D.A.; Schwarz, J.; Bradt, H.; Doxsey, R.E.; Charles, P.A.; Thorstensen, J. R. (1978). "Positions and Identifications for Galactic X-ray Sources 2A1822-371 and 2S1254-690". Nature. 276 (16): 247–49. Bibcode:1978Natur.276..247G. doi:10.1038/276247a0. S2CID 4372341.
^"VSX : Detail for GR Mus". The International Variable Star Index. AAVSO.
This variable star–related article is a stub. You can help Wikipedia by expanding it.
muscae, also, known, 1254, binary, star, system, constellation, musca, composed, neutron, star, between, times, mass, mass, star, likely, around, mass, close, orbit, magnitude, blue, star, pinpointed, optical, counterpart, source, 1978, apparent, magnitude, va. GR Muscae also known as 2S 1254 690 is a binary star system in the constellation Musca composed of a neutron star of between 1 2 and 1 8 times the mass of the Sun and a low mass star likely to be around the mass of the Sun in close orbit 2 A magnitude 19 blue star was pinpointed as the optical counterpart of the X ray source in 1978 3 Its apparent magnitude varies from 18 to 19 1 over a period of 0 16 days 4 GR Muscae Observation dataEpoch J2000 0 Equinox J2000 0 ICRS Constellation MuscaRight ascension 12h 57m 37 153s 1 Declination 69 17 18 98 1 Visual band light curves for GR Muscae adapted from Cornelisse et al 2013 2 The neutron star has an accretion disk that takes around 6 74 days to complete a revolution and is inclined at an angle to the incoming stream of material from the donor star 2 References edit a b GR Muscae Low Mass X ray Binary SIMBAD Astronomical Database Centre de Donnees astronomiques de Strasbourg Retrieved 9 March 2014 a b c Cornelisse R Kotze M M Casares J Charles P A Hakala P J 2013 The Origin of the Tilted Disc in the Low mass X ray Binary GR Mus XB 1254 690 Monthly Notices of the Royal Astronomical Society 436 1 910 20 arXiv 1309 4972 Bibcode 2013MNRAS 436 910C doi 10 1093 mnras stt1654 S2CID 119242800 Griffiths R E Gursky H Schwartz D A Schwarz J Bradt H Doxsey R E Charles P A Thorstensen J R 1978 Positions and Identifications for Galactic X ray Sources 2A1822 371 and 2S1254 690 Nature 276 16 247 49 Bibcode 1978Natur 276 247G doi 10 1038 276247a0 S2CID 4372341 VSX Detail for GR Mus The International Variable Star Index AAVSO nbsp This variable star related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title GR Muscae amp oldid 1154749052, wikipedia, wiki, book, books, library,
