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Abell 2390

Galaxy cluster in the constellation Pegasus

Field	Value
name	Abell 2390
image	Abell 2390 (heic0814d).tiff
epoch	J2000
constellation	Pegasus
ra
dec
brightest_member	LEDA 140982
richness	1
redshift	0.22800
distance	919 Mpc
temperature	8.89 keV
mass	10.74
flux	(9.60 ± 23.4%) erg s−1 cm−2 (0.1–2.4 keV)

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

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

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

Brightest Cluster Galaxy

Main article: 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. Another study shows the galaxy also contains molecular gas, with some located in a one-sided plume from the galaxy's center.

References

"NED results for object ABELL 2390".
(May 1989). "A catalog of rich clusters of galaxies". Astrophysical Journal Supplement Series.
(April 2006). "Chandra Sample of Nearby Relaxed Galaxy Clusters: Mass, Gas Fraction, and Mass-Temperature Relation". The Astrophysical Journal.
"Abell 2390".
(July 2001). "''Chandra'' measurements of the distribution of mass in the luminous lensing cluster Abell 2390". Monthly Notices of the Royal Astronomical Society.
(2024-01-19). "A massive multiphase plume of gas in Abell 2390's brightest cluster galaxy". Monthly Notices of the Royal Astronomical Society.
(2006-03-01). "The radio properties of the cD galaxy of Abell 2390". Monthly Notices of the Royal Astronomical Society.
(2002-04-01). "Galaxy Morphology in the Rich Cluster Abell 2390". The Astronomical Journal.
(1996-11-01). "Galaxy Evolution in Abell 2390". The Astrophysical Journal.
(1996-09-01). "A Weak Gravitational Lensing Analysis of Abell 2390". The Astrophysical Journal.
(1996-07-01). "X-ray analysis and matter distribution in the lens-cluster Abell 2390". Astronomy and Astrophysics.

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

abell-objects galaxy-clusters abell-richness-class-1 pegasus-(constellation)

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