Langbahn Team – Weltmeisterschaft

Abell 2390

Abell 2390
Observation data (Epoch J2000)
Constellation(s)Pegasus
Right ascension21h 53m 34.6s[1]
Declination+17° 40′ 11″[1]
Brightest memberLEDA 140982
Richness class1[2]
Redshift0.22800 [1]
Distance919 Mpc (2,997 Mly) h−1
0.705 [1]
ICM temperature8.89 keV[3]
Binding mass10.74×1014[3] M☉
X-ray flux(9.60 ± 23.4%)×10−12 erg s−1 cm−2 (0.1–2.4 keV) [1]

Abell 2390 is a massive galaxy cluster located in the constellation Pegasus.[4] It is classified as an X-ray and rich galaxy clusters measured cooling rate of 200-300 Mʘyr-1.[5] The galaxy cluster contains a cD galaxy called Abell 2390 BCG (short for brightest cluster galaxy), associated with a complex radio source, B2151+141.[6][7]

A study has been conducted on the galaxy members of Abell 2390 and finds each of them have different morphology classifications.[8] 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.[9]

Based on weak gravitational distortion of galaxies lying in the background, dark matter distribution is detected in Abell 2390.[10] 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.[11]

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.[7] Another study shows the galaxy also contains molecular gas, with some located in a one-sided plume from the galaxy's center.[6]

See also

References

  1. ^ a b c d e "NED results for object ABELL 2390". NASA/IPAC Extragalactic Database (NED). Retrieved 15 March 2012.
  2. ^ Abell GO, Corwin HG Jr, Olowin RP (May 1989). "A catalog of rich clusters of galaxies". Astrophysical Journal Supplement Series. 70 (May 1989): 1–138. Bibcode:1989ApJS...70....1A. doi:10.1086/191333. ISSN 0067-0049.
  3. ^ a b Table 4 from Vikhlinin A, Kravtsov A, Forman W, Jones C, Markevitch M, Murray SS, et al. (April 2006). "Chandra Sample of Nearby Relaxed Galaxy Clusters: Mass, Gas Fraction, and Mass-Temperature Relation". The Astrophysical Journal. 640 (2): 691–709. arXiv:astro-ph/0507092. Bibcode:2006ApJ...640..691V. doi:10.1086/500288. S2CID 18940822.
  4. ^ "Abell 2390". www.esahubble.org. Retrieved 12 September 2024.
  5. ^ Allen S, Ettori S, Fabian A (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. arXiv:astro-ph/0008517. doi:10.1046/j.1365-8711.2001.04318.x. ISSN 0035-8711.
  6. ^ a b Rose T, McNamara BR, Combes F, Edge AC, Russell H, Salomé P, et al. (19 January 2024). "A massive multiphase plume of gas in Abell 2390's brightest cluster galaxy". Monthly Notices of the Royal Astronomical Society. 528 (2): 3441–3455. arXiv:2310.16892. doi:10.1093/mnras/stae213. ISSN 0035-8711.
  7. ^ a b Augusto P, Edge AC, Chandler CJ (1 March 2006). "The radio properties of the cD galaxy of Abell 2390". Monthly Notices of the Royal Astronomical Society. 367 (1): 366–374. arXiv:astro-ph/0512250. Bibcode:2006MNRAS.367..366A. doi:10.1111/j.1365-2966.2005.09965.x. ISSN 0035-8711.
  8. ^ Hutchings JB, Saintonge A, Schade D, Frenette D (1 April 2002). "Galaxy Morphology in the Rich Cluster Abell 2390". The Astronomical Journal. 123 (4): 1826–1837. arXiv:astro-ph/0201042. Bibcode:2002AJ....123.1826H. doi:10.1086/339305. ISSN 0004-6256.
  9. ^ Abraham RG, Smecker-Hane TA, Hutchings JB, Carlberg RG, Yee HK, Ellingson E, et al. (1 November 1996). "Galaxy Evolution in Abell 2390". The Astrophysical Journal. 471 (2): 694–719. arXiv:astro-ph/9605144. Bibcode:1996ApJ...471..694A. doi:10.1086/177999. ISSN 0004-637X.
  10. ^ Squires G, Kaiser N, Fahlman G, Babul A, Woods D (1 September 1996). "A Weak Gravitational Lensing Analysis of Abell 2390". The Astrophysical Journal. 469: 73. arXiv:astro-ph/9602105. Bibcode:1996ApJ...469...73S. doi:10.1086/177759. ISSN 0004-637X.
  11. ^ Pierre M, Le Borgne JF, Soucail G, Kneib JP (1 July 1996). "X-ray analysis and matter distribution in the lens-cluster Abell 2390". Astronomy and Astrophysics. 311: 413–424. arXiv:astro-ph/9510128. Bibcode:1996A&A...311..413P. ISSN 0004-6361.


Quelle: http://en.wikipedia.org/wiki/Abell_2390