Astronomy:Abell 2390

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Abell 2390
Observation data (Epoch J2000)
Constellation(s)Pegasus
Right ascension 21h 53m 34.6s[1]
Declination+17° 40′ 11″[1]
Brightest memberLEDA 140982
Redshift0.22800 [1]
Distance
(co-moving)		919 Mpc (2,997 Mly) h−10.705 [1]
ICM temperature8.89 keV[2]
Binding mass10.74×1014[2] M☉
X-ray flux(9.60 ± 23.4%)×10−12 erg s−1 cm−2 (0.1–2.4 keV) [1]
See also: Galaxy group, Galaxy cluster, List of galaxy groups and clusters

Abell 2390 is a massive galaxy cluster located in the constellation Pegasus.[3] It is classified as an X-ray and rich galaxy clusters measured cooling rate of 200-300 Mʘyr−1.[4] The galaxy cluster contains a cD galaxy called Abell 2390 BCG (short for brightest cluster galaxy), associated with a complex radio source, B2151+141.[5][6]

A study has been conducted on the galaxy members of Abell 2390 and finds each of them have different morphology classifications.[7] Further evidence also points out only a few galaxies show star formations, indicating starbursts play no major role in propelling the galaxy cluster's evolution.[8]

Based on weak gravitational distortion of galaxies lying in the background, dark matter distribution is detected in Abell 2390.[9] Its X-ray distribution in the cluster is elliptical and distorted by its sub-structure on a large scale according to an X-ray ROSAT/HRI observation.[10]

Abell 2390 BCG

The brightest cluster galaxy of Abell 2390 is the supergiant elliptical galaxy, LEDA 140982. It is a Fanaroff-Riley class II radio galaxy hosting a luminous powerful radio source with extended optical emission lines. According to studies published in 2006, the source of LEDA 140982 is found peculiar with a misaligned, compact twin radio jet structure created by the host galaxy's apparent structure. Based on evidence, it might be caused by the precession of its central supermassive black hole.[6] Another study shows the galaxy also contains molecular gas, with some located in a one-sided plume from the galaxy's center.[5]

See also

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 "NED results for object ABELL 2390". http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=Abell+2390&extend=no. 
  2. ↑ 2.0 2.1 Table 4 from Vikhlinin, A.; Kravtsov, A.; Forman, W.; Jones, C.; Markevitch, M.; Murray, S. S.; Van Speybroeck, L. (April 2006). "Chandra Sample of Nearby Relaxed Galaxy Clusters: Mass, Gas Fraction, and Mass-Temperature Relation". The Astrophysical Journal 640 (2): 691–709. doi:10.1086/500288. Bibcode: 2006ApJ...640..691V. 
  3. ↑ "Abell 2390" (in en). https://esahubble.org/images/heic0814d/. 
  4. ↑ Allen, S.W.; Ettori, S.; Fabian, A.C. (July 2001). "Chandra measurements of the distribution of mass in the luminous lensing cluster Abell 2390". Monthly Notices of the Royal Astronomical Society 324 (4): 877–890. doi:10.1046/j.1365-8711.2001.04318.x. ISSN 0035-8711. 
  5. ↑ 5.0 5.1 Rose, Tom; McNamara, B R; Combes, F; Edge, A C; Russell, H; Salomé, P; Tamhane, P; Fabian, A C et al. (2024-01-19). "A massive multiphase plume of gas in Abell 2390's brightest cluster galaxy". Monthly Notices of the Royal Astronomical Society 528 (2): 3441–3455. doi:10.1093/mnras/stae213. ISSN 0035-8711. 
  6. ↑ 6.0 6.1 Augusto, Pedro; Edge, Alastair C.; Chandler, Claire J. (2006-03-01). "The radio properties of the cD galaxy of Abell 2390". Monthly Notices of the Royal Astronomical Society 367 (1): 366–374. doi:10.1111/j.1365-2966.2005.09965.x. ISSN 0035-8711. Bibcode: 2006MNRAS.367..366A. 
  7. ↑ Hutchings, J. B.; Saintonge, A.; Schade, D.; Frenette, D. (2002-04-01). "Galaxy Morphology in the Rich Cluster Abell 2390". The Astronomical Journal 123 (4): 1826–1837. doi:10.1086/339305. ISSN 0004-6256. Bibcode: 2002AJ....123.1826H. https://ui.adsabs.harvard.edu/abs/2002AJ....123.1826H/abstract. 
  8. ↑ Abraham, R. G.; Smecker-Hane, Tammy A.; Hutchings, J. B.; Carlberg, R. G.; Yee, H. K. C.; Ellingson, Erica; Morris, Simon; Oke, J. B. et al. (1996-11-01). "Galaxy Evolution in Abell 2390". The Astrophysical Journal 471 (2): 694–719. doi:10.1086/177999. ISSN 0004-637X. Bibcode: 1996ApJ...471..694A. https://ui.adsabs.harvard.edu/abs/1996ApJ...471..694A/abstract. 
  9. ↑ Squires, G.; Kaiser, N.; Fahlman, G.; Babul, A.; Woods, D. (1996-09-01). "A Weak Gravitational Lensing Analysis of Abell 2390". The Astrophysical Journal 469: 73. doi:10.1086/177759. ISSN 0004-637X. Bibcode: 1996ApJ...469...73S. https://ui.adsabs.harvard.edu/abs/1996ApJ...469...73S/abstract. 
  10. ↑ Pierre, M.; Le Borgne, J. F.; Soucail, G.; Kneib, J. P. (1996-07-01). "X-ray analysis and matter distribution in the lens-cluster Abell 2390". Astronomy and Astrophysics 311: 413–424. ISSN 0004-6361. Bibcode: 1996A&A...311..413P. https://ui.adsabs.harvard.edu/abs/1996A&A...311..413P/abstract. 

Coordinates: Sky map 21h 53m 34.6s, +17° 40′ 11″



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