Abell 400 is a galaxy cluster which contains the galaxy NGC 1128 with two supermassive black holes (3C 75) spiraling towards merger.
| Abell 400 | |
|---|---|
 Abell 400 with the legacy surveys | |
| Observation data (Epoch J2000) | |
| Constellation(s) | Cetus |
| Right ascension | 02h 57m 38.6s[1] |
| Declination | +06° 02′ 00″[1] |
| Richness class | 1[2] |
| Bautz–Morgan classification | II-III[2] |
| Redshift | 0.0244 (7 315 km/s)[1] |
| Distance | 100 Mpc (326 Mly) h−1 0.705 |
| X-ray flux | (16.2 ± 20.5%)×10−12 erg s−1 cm−2 (0.1–2.4 keV)[1] |
These two supermassive black holes are contained in NGC 1128. The galaxy, microwave radio jets, multi-million degree X-ray producing gas and resultant radio source is known as 3C 75. X-ray source 2A 0252+060 (1H 0253+058, XRS 02522+060) may be some additional or other portion of Abell 400.[3]
The black holes are an estimated 25,000 light years apart, and thus will take millions of years to collide. Should the two supermassive black holes merge, they will form a single super-supermassive black hole.[4]
Gallery
edit-
wider view of Abell 400 with PanSTARRS -
See also
editReferences
edit- ^ a b c d "NED results for object ABELL 0400". NASA/IPAC Extragalactic Database (NED). Retrieved March 15, 2012.
- ^ a b Abell, George O.; Corwin, Harold G. Jr.; Olowin, Ronald P. (May 1989). "A catalog of rich clusters of galaxies" (PDF). Astrophysical Journal Supplement Series. 70 (May 1989): 1–138. Bibcode:1989ApJS...70....1A. doi:10.1086/191333. ISSN 0067-0049. Retrieved March 12, 2012.
- ^ Wood KS; Meekins JF; Yentis DJ; Smathers HW; McNutt DP; Bleach RD (December 1984). "The HEAO A-1 X-ray source catalog". Astrophys. J. Suppl. Ser. 56 (12): 507–649. Bibcode:1984ApJS...56..507W. doi:10.1086/190992.
- ^ "Chandra :: Photo Album :: 3C 75 in Abell 400 :: 06 Apr 06". chandra.harvard.edu. Retrieved 2019-02-16.
External links
edit- Pair of black holes locked in death dance (CNN) Thursday, April 6, 2006; Posted: 2:46 p.m. EDT (18:46 GMT)
- Black Holes Bound to Merge (SPACE.com) 6 April 2006 11:48 am ET
- Black Holes Dance With Incredible Violence (SpaceDaily) Apr 12, 2006
- Study Finds Two Supermassive Black Holes Spiraling Toward Collision (Newswise) Apr 6, 2006
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