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PSR B1259−63

From Wikipedia, the free encyclopedia
(Redirected from LS 2883)
PSR B1259−63

The location of PSR J1302−6350 (circled in red)
Observation data
Epoch J2000      Equinox ICRS
Constellation Centaurus[1]
Right ascension 13h 02m 47.654s[2]
Declination −63° 50′ 08.63″[2]
Apparent magnitude (V) 9.98[3]
Characteristics
Evolutionary stage Pulsar + Main sequence[4]
Spectral type O9.5Ve[4]
Astrometry
Proper motion (μ) RA: −7.093[2] mas/yr
Dec.: −0.342[2] mas/yr
Parallax (π)0.4434±0.0133 mas[2]
Distance7,400 ± 200 ly
(2,260 ± 70 pc)
Orbit[5]
NameSS 2883
Period (P)3.389 years
(1,237 days)
Eccentricity (e)0.87
Inclination (i)36°
Details
Pulsar
Rotation47.7625075 ms
Age332,000 years
O-type star
Mass22.5[6] M☉
Radius10.4[2] R☉
Luminosity160,000[7] L☉
Surface gravity (log g)3.84[8] cgs
Temperature35,610[8] K
Rotational velocity (v sin i)280 km/s
Other designations
AAVSO 1256−63, ALS 2883, AX J1302−638, CPD-63° 2495, GSC 08997-01597, Hbg 757, Hen 3-852, INTREF 538, LS 2883, MSX6C G304.1845-00.9916, PSR B1259−63 PSR J1302−6350, THA 17-8, TYC 8997-1597-1, UCAC2 3710789, WRAY 15-1053[9]
Database references
SIMBADdata

PSR B1259−63 is a pulsar and member of an eclipsing binary star system with the blue O9.5Ve-class star SS 2883. The pair has an eccentric orbit that is inclined to the line of sight from Earth by about 36°, leading to a 40-day-long eclipse each time the pulsar passes behind the star.[5] The pulsar has a period of 47.762 milliseconds (ms) and a luminosity of 8.3 × 1035 erg/s. It emits very high energy gamma rays that vary on a time scale of several days.[10]

The star SS 2883 has about 22.5 solar masses and is 10.4 solar radii in size. The rate of rotation is about 280 km/s at the equator, or 70% of the breakup velocity.[5]

References

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  1. ↑ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.
  2. 1 2 3 4 5 6 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  3. ↑ Zacharias, N.; Finch, C. T.; Girard, T. M.; Henden, A.; Bartlett, J. L.; Monet, D. G.; Zacharias, M. I. (2012). "VizieR Online Data Catalog: UCAC4 Catalogue (Zacharias+, 2012)". VizieR On-line Data Catalog: I/322A. Originally Published in: 2012yCat.1322....0Z; 2013AJ....145...44Z. 1322. Bibcode:2012yCat.1322....0Z.
  4. 1 2 Chernyakova, M.; et al. (March 2014). "Multiwavelength observations of the binary system PSR B1259-63/LS 2883 around the 2010-2011 periastron passage". Monthly Notices of the Royal Astronomical Society. 439 (1): 432–445. arXiv:1401.1386. Bibcode:2014MNRAS.439..432C. doi:10.1093/mnras/stu021. S2CID 55330740.
  5. 1 2 3 Wang, N.; Johnston, S.; Manchester, R. N. (June 2004). "13 years of timing of PSR B1259-63". Monthly Notices of the Royal Astronomical Society. 351 (2): 599–606. arXiv:astro-ph/0403612. Bibcode:2004MNRAS.351..599W. doi:10.1111/j.1365-2966.2004.07806.x. S2CID 119397388.
  6. ↑ Fortin, Francis; García, Federico; Chaty, Sylvain; Chassande-Mottin, Eric; Simaz Bunzel, Adolfo (2022). "Constraints to neutron-star kicks in high-mass X-ray binaries with Gaia EDR3". Astronomy & Astrophysics. 665: A31. arXiv:2206.03904. Bibcode:2022A&A...665A..31F. doi:10.1051/0004-6361/202140853.
  7. ↑ Wang, Song; Liu, Jifeng; Qiu, Yanli; Bai, Yu; Yang, Huiqin; Guo, Jincheng; Zhang, Peng (2016). "Chandra Acis Survey of X-Ray Point Sources: The Source Catalog". The Astrophysical Journal Supplement Series. 224 (2): 40. arXiv:1603.08353. Bibcode:2016ApJS..224...40W. doi:10.3847/0067-0049/224/2/40.
  8. 1 2 Doyle, Lauren; Armstrong, David J.; Bayliss, Daniel; Rodel, Toby; Kunovac, Vedad (2024). "The TESS-SPOC FFI target sample explored with Gaia". Monthly Notices of the Royal Astronomical Society. 529 (2): 1802. arXiv:2403.02407. Bibcode:2024MNRAS.529.1802D. doi:10.1093/mnras/stae616.
  9. ↑ "TYC 8997-1597-1 -- Pulsar". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2009-01-06.
  10. ↑ Aharonian, F.; et al. (2005). "Discovery of the Binary Pulsar PSR B1259-63 in Very-High-Energy Gamma Rays around Periastron with H.E.S.S.". Astronomy & Astrophysics. 442 (1): 1–10. arXiv:astro-ph/0506280. Bibcode:2005A&A...442....1A. doi:10.1051/0004-6361:20052983. S2CID 11673268.
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