Talk:List of nearest known black holes

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Why no black holes closer to us

Why is there no black closer than 2000 ly away from us? Is it because none has been detected yet, or do scientists really believe there is no black hole within this radius? Thinking of the large number of short-living massive stars within this radius, it appears odd if there were no black holes. Tomeasy_{T C} 20:17, 20 February 2016 (UTC)[reply]

More black holes to add

This needs improvement, there are more black holes to add Such as v4641 sgr. - anonymous 16:27, 19 July 2016‎ — Preceding unsigned comment added by 82.7.154.17 (talk • contribs) 16:27, 19 July 2016 (UTC)[reply]

Incorrect mass for A0620-00 ?

The article for A0620-00 says it's 6.6 Solar masses, not 11; and this seems to be confirmed in the paper linked in the article. --TiagoTiago (talk) 06:06, 17 January 2018 (UTC)[reply]

Please fix table formatting

The table is badly mangled. Fig (talk) 09:27, 28 January 2018 (UTC)[reply]

@Fig wright I just fixed sorting by mass. Grillofrances (talk) 04:45, 16 June 2022 (UTC)[reply]

Sagittarius A* sorts as smallest.

If you sort by mass this table sorts Sagittarius A* as smallest. The mass should be listed in a different format so the sort works. Maybe 4.1x10^6? I don't know enough about how the sorting function on these lists work. — Preceding unsigned comment added by 2600:1700:8310:B1A0:F982:7B69:89AD:3506 (talk) 03:56, 29 November 2019 (UTC)[reply]

I just fixed sorting by mass. Grillofrances (talk) 04:45, 16 June 2022 (UTC)[reply]

What is meant by "relatively near?"

There is no clear definition of what is being categorized as close to the solar system. The last two entries include black holes that are over 20,000 ly away. I don't see how this would be considered "near" when the Milky Way only has a radius of about 53,000 ly? CayenneEMatt (talk) 00:47, 10 May 2021 (UTC)[reply]

Article should define the cut-off distance. Is it 30,000 light years, or should it be something less? Nurg (talk) 04:04, 7 November 2022 (UTC)[reply]

LB-1 not generally thought to contain a black hole

LB-1 in recent reviews is thought to be an unusual binary of two stars and does not contain a black hole. - anonymous — Preceding unsigned comment added by 108.31.90.200 (talk) 04:55, 15 July 2022 (UTC)[reply]

GRO J0422+32/V518 Persei has a significantly smaller mass, so it is not a black hole.

Analysis in 2012 calculated a mass of 2.1 M_☉.^[1] Voproshatel (talk) 08:37, 3 April 2024 (UTC)[reply]

References

^ Kreidberg, Laura; Bailyn, Charles D.; Farr, Will M.; Kalogera, Vicky (2012). "Mass Measurements of Black Holes in X-ray Transients: is There a Mass Gap?". The Astrophysical Journal. 757 (36): 17pp. arXiv:1205.1805. Bibcode:2012ApJ...757...36K. doi:10.1088/0004-637x/757/1/36. S2CID 118452794.

[kreidberg12-1] Kreidberg, Laura; Bailyn, Charles D.; Farr, Will M.; Kalogera, Vicky (2012). "Mass Measurements of Black Holes in X-ray Transients: is There a Mass Gap?". The Astrophysical Journal. 757 (36): 17pp. arXiv:1205.1805. Bibcode:2012ApJ...757...36K. doi:10.1088/0004-637x/757/1/36. S2CID 118452794.

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