Butcher & Oemler cluster A 2111: a head-on merger at z = 0.23 | Zendy

Q. Daniel Wang | Zendy; M. P. Ulmer | Zendy; R. J. Lavery | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Butcher & Oemler cluster A 2111: a head-on merger at z = 0.23

Author(s) -

Q. Daniel Wang,

M. P. Ulmer,

R. J. Lavery

Publication year - 1997

Publication title -

monthly notices of the royal astronomical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.058

H-Index - 383

eISSN - 1365-8711

pISSN - 0035-8711

DOI - 10.1093/mnras/288.3.702

Subject(s) - physics , astrophysics , brightest cluster galaxy , cluster (spacecraft) , rosat , surface brightness , galaxy cluster , astronomy , galaxy , abell 2744 , butcher , fornax cluster , computer science , programming language , archaeology , history

We present ROSAT PSPC and HRI observations of A2111, the richest galaxycluster photometrically surveyed by Butcher & Oemler (1984). The clustercontains a distinct comet-shaped X-ray subcomponent, which appears hotter thanthe rest of the cluster. The galaxy and X-ray surface brightness distributionsof the cluster show a similarly elongated morphology. These results suggestthat the cluster is undergoing a head-on subcluster merger. This merger mayalso be responsible for the high fraction of gas-rich blue galaxies observed inthe cluster. We have further detected a poor cluster along the merging axis andat a projected distance of about 5 Mpc from A2111.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research