VFTS 243 (2MASS J05380840-6909190) is an O7V type main sequence star that orbits a stellar mass black hole.[7] The black hole is around nine times the mass of the Sun, with the blue star being 25 times the mass of the Sun making the star 200,000 times larger than the black hole. VFTS 243 is located in the Large Magellanic Cloud inside NGC 2070 (the Tarantula Nebula) around 160,000 light years from Earth.[8][5] The binary has an orbital period of 10.4 days.[4]
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Dorado |
| Right ascension | 05h 38m 08.407s[1] |
| Declination | −69° 09′ 18.98″[1] |
| Apparent magnitude (V) | 15.26[2] |
| Characteristics | |
| Evolutionary stage | main sequence + black hole |
| Spectral type | O7V(n)((f))[3] |
| Variable type | variable[4] |
| Astrometry | |
| Proper motion (μ) | RA: +1.722 mas/yr[1] Dec.: +0.603 mas/yr[1] |
| Parallax (π) | −0.0468 ± 0.0244 mas[1] |
| Orbit[4] | |
| Period (P) | 10.4031 days |
| Eccentricity (e) | 0.017 |
| Inclination (i) | ≥ 40° |
| Semi-amplitude (K1) (primary) | 81.4 km/s |
| Details[4] | |
| star | |
| Mass | 25 M☉ |
| Radius | 10.3 R☉ |
| Luminosity | 158,000 L☉ |
| Surface gravity (log g) | 3.7 cgs |
| Temperature | 36,000 K |
| Rotational velocity (v sin i) | 181 km/s |
| Age | 7.4 Myr |
| black hole | |
| Mass | 10.1 M☉ |
| Other designations | |
| Database references | |
| SIMBAD | data |
References
edit- ^ a b c d 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.
- ^ Evans, C. J.; Taylor, W. D.; Hénault-Brunet, V.; Sana, H.; De Koter, A.; et al. (June 2011). "The VLT-FLAMES Tarantula Survey. I. Introduction and observational overview". Astronomy & Astrophysics. 530: A108. arXiv:1103.5386. Bibcode:2011A&A...530A.108E. doi:10.1051/0004-6361/201116782. S2CID 54501763.
- ^ Walborn, N. R.; Sana, H.; Simón-Díaz, S.; Maíz Apellániz, J.; Taylor, W. D.; Evans, C. J.; Markova, N.; Lennon, D. J.; De Koter, A. (2014). "The VLT-FLAMES Tarantula Survey. XIV. The O-type stellar content of 30 Doradus". Astronomy and Astrophysics. 564: A40. arXiv:1402.6969. Bibcode:2014A&A...564A..40W. doi:10.1051/0004-6361/201323082. S2CID 119302111.
- ^ a b c d Shenar, Tomer; Sana, Hugues; Mahy, Laurent; El-Badry, Kareem; Marchant, Pablo; Langer, Norbert; Hawcroft, Calum; Fabry, Matthias; Sen, Koushik; Almeida, Leonardo A.; Abdul-Masih, Michael; Bodensteiner, Julia; Crowther, Paul A.; Gieles, Mark; Gromadzki, Mariusz (2022-07-18). "An X-ray-quiet black hole born with a negligible kick in a massive binary within the Large Magellanic Cloud". Nature Astronomy. 6 (9): 1085–1092. arXiv:2207.07675. Bibcode:2022NatAs...6.1085S. doi:10.1038/s41550-022-01730-y. ISSN 2397-3366. S2CID 250626810.
- ^ a b "VFTS 243". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2022-09-13.
- ^ "'Black hole police' discover a dormant black hole outside our galaxy". European Southern Observatory. 18 July 2022. Retrieved 20 September 2022.
- ^ Stevance, H. F.; Ghodla, S.; Richards, S.; Eldridge, J. J.; Briel, M. M.; Tang, P. (2023). "VFTS 243 as predicted by the BPASS fiducial models". Monthly Notices of the Royal Astronomical Society. 520 (3): 4740–4746. arXiv:2208.02258. doi:10.1093/mnras/stad362.
- ^ Katie Hunt (18 July 2022). "'Black hole police' discover dormant black hole outside our galaxy for first time". CNN. Retrieved 2022-09-13.
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