List of least massive black holes
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Below there is a list of the least massive known black holes, sorted by increasing mass. The unit of measurement is the solar mass, equivalent to 2.0×1030 kg.
| Name | Mass (M☉) |
Distance (ly) |
Companion class | Mass determination method | Notes | Refs. |
|---|---|---|---|---|---|---|
| 2MASS J05215658+4359220 | 3.3+2.8 −0.7 | 10,000 | K-type (?) giant | Spectroscopic radial velocity measurements of noninteracting companion. | In Milky Way outskirts. Recent Hubble ultraviolet data has suggested the companion to this object is actually a warm subgiant, and ruling out smaller compact companions such as a white dwarf.[1] | [1][2][3][4] |
| GW190425's remnant | 3.4+0.3 −0.1 | 518,600,000 | N/A | Gravitational wave data of neutron star merger from LIGO and Virgo interferometers. | 97% chance of prompt collapse into a black hole immediately after merger. Alternative study suggests collapse 2.5 hours later. | [2][5][6][7] |
| NGC 3201-1 | 4.36±0.41 | 15,600 | (see Notes) | Spectroscopic radial velocity measurements of noninteracting companion. | In globular cluster NGC 3201. Companion is 0.8M☉ main sequence turn-off. | [2][8] |
| GRO J1719-24/ GRS 1716−249 | ≥4.9 | 8,500 | K0-5 V | Near-infrared photometry of companion and Eddington flux. | LMXB system. | [2][9] |
| 4U 1543-47 | 5.0+2.5 −2.3 | 30,000 ± 3,500 | A2 (V)? | Spectroscopic radial velocity measurements of companion. | SXT system. | [2][10] |
| XTE J1650-500 | ≥5.1 | 8,500 ± 2,300 | K4V | Orbital resonance modeling from QPOs | Transient binary X-ray source | [11][12] |
| GRO J1655-40 | 5.31±0.07 | <5,500 | F6IV | Precision X-ray timing observations from RossiXTE. | LMXB system. | [13][14] |
| GX 339-4 | 5.9±3.6 | 26,000 | N/A | [2] | ||
See also
References
- 1 2 Bianchi, Luciana; Hutchings, John; Bohlin, Ralph; Thilker, David; Berti, Emanuele (2024). "Revealing the elusive companion of the red giant binary 2MASSJ05215658+4359220 from UV HST and Astrosat-UVIT data". The Astrophysical Journal. 976 (1): 131. arXiv:2409.06906. Bibcode:2024ApJ...976..131B. doi:10.3847/1538-4357/ad712f.
- 1 2 3 4 5 6 Elavsky, F; Geller, A. "Masses in the Stellar Graveyard". Northwestern University.
- ↑ Thompson, T. A.; Kochanek, C. S.; Stanek, K. Z.; et al. (2019). "A noninteracting low-mass black hole–giant star binary system". Science. 366 (6465): 637–640. arXiv:1806.02751. Bibcode:2019Sci...366..637T. doi:10.1126/science.aau4005. PMID 31672898. S2CID 207815062.
- ↑ Kumar, V. (2019-11-03). "Astronomers Spot A New Class Of Low-Mass Black Holes". RankRed. Retrieved 2019-11-05.
- ↑ Abbott, B. P.; et al. (2020). "GW190425: Observation of a Compact Binary Coalescence with Total Mass ~ 3.4 M ⊙". The Astrophysical Journal. 892 (1): L3. arXiv:2001.01761. Bibcode:2020ApJ...892L...3A. doi:10.3847/2041-8213/ab75f5. S2CID 210023687.
- ↑ Foley, Ryan J.; Coulter, David A.; Kilpatrick, Charles D.; Piro, Anthony L.; Ramirez-Ruiz, Enrico; Schwab, Josiah (2020). "Updated parameter estimates for GW190425 using astrophysical arguments and implications for the electromagnetic counterpart". Monthly Notices of the Royal Astronomical Society. 494 (1): 190–198. arXiv:2002.00956. Bibcode:2020MNRAS.494..190F. doi:10.1093/mnras/staa725.
- ↑ Paul Sutter last updated (2022-09-16). "Strange quark star may have formed from a lucky cosmic merger". Space.com. Archived from the original on 2023-03-23. Retrieved 2023-03-30.
{{cite web}}:|author=has generic name (help) - ↑ Giesers, B; et al. (2018). "A detached stellar-mass black hole candidate in the globular cluster NGC 3201". Monthly Notices of the Royal Astronomical Society: Letters. 475 (1): L15 – L19. arXiv:1801.05642. Bibcode:2018MNRAS.475L..15G. doi:10.1093/mnrasl/slx203. S2CID 35600251.
- ↑ Chaty, S.; Mirabel, I. F.; Goldoni, P.; Mereghetti, S.; Duc, P.-A.; Martí, J.; Mignani, R. P. (2002). "Near-infrared observations of Galactic black hole candidates". Monthly Notices of the Royal Astronomical Society. 331 (4): 1065–1071. arXiv:astro-ph/0112329. Bibcode:2002MNRAS.331.1065C. doi:10.1046/j.1365-8711.2002.05267.x. S2CID 15529877.
- ↑ Orosz, Jerome A.; Jain, Raj K.; Bailyn, Charles D.; McClintock, Jeffrey E.; Remillard, Ronald A. (2002). "Orbital Parameters for the Soft X-Ray Transient 4U 1543-47: Evidence for a Black Hole". The Astrophysical Journal. 499 (1): 375–384. arXiv:astro-ph/9712018. Bibcode:1998ApJ...499..375O. doi:10.1086/305620. S2CID 16991861.
- ↑ Slany, P.; Stuchlik, Z. (1 October 2008). "Mass estimate of the XTE J1650-500 black hole from the Extended Orbital Resonance Model for high-frequency QPOs". Astronomy & Astrophysics. 492 (2): 319–322. arXiv:0810.0237. Bibcode:2008A&A...492..319S. doi:10.1051/0004-6361:200810334. S2CID 5526948.
- ↑ Determination of Black Hole Masses in Galactic Black Hole Binaries Using Scaling of Spectral and Variability Characteristics Shaposhnikov, Nickolai; Titarchuk, Lev; The Astrophysical Journal, Volume 699, Issue 1, pp. 453-468 (2009) doi:10.1088/0004-637X/699/1/453 Pdf
- ↑ Motta, S. E.; Belloni, T. M.; Stella, L.; Muñoz-Darias, T.; Fender, R. (2014). "Precise mass and spin measurements for a stellar-mass black hole through X-ray timing: The case of GRO J1655-40". Monthly Notices of the Royal Astronomical Society. 437 (3): 2554. arXiv:1309.3652. Bibcode:2014MNRAS.437.2554M. doi:10.1093/mnras/stt2068.
- ↑ Foellmi, C.; Depagne, E.; Dall, T.H.; Mirabel, I.F (12 June 2006). "On the distance of GRO J1655-40". Astronomy & Astrophysics. 457 (1): 249–255. arXiv:astro-ph/0606269. Bibcode:2006A&A...457..249F. doi:10.1051/0004-6361:20054686. S2CID 119395985.