Photometry of Galaxies in the Field of the Galaxy Cluster a BELL  1781 | Zendy

Fritze K. | Zendy; Lange M. | Zendy; Richter G. M. | Zendy; Stoll D. | Zendy

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Photometry of Galaxies in the Field of the Galaxy Cluster a BELL 1781

Author(s) -

Fritze K.,

Lange M.,

Richter G. M.,

Stoll D.

Publication year - 1978

Publication title -

astronomische nachrichten

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.394

H-Index - 63

eISSN - 1521-3994

pISSN - 0004-6337

DOI - 10.1002/asna.19782990202

Subject(s) - physics , photometry (optics) , brightest cluster galaxy , astrophysics , galaxy , brightness , cluster (spacecraft) , galaxy cluster , astronomy , stars , computer science , programming language

A method for determing the brightness and diameter of galaxies in a large field on Schmidt plates by automatic scanning with a microphotometer is described and applied to the A BELL cluster A 1781. The accuracy of this method is tested. The overall errors (r.m.s.) of brightness and diameter are 0.16 mag and 0″.44. The cluster A 1781 has been prooved to be a very poor cluster of about 10 members up to m B ≈ 19 m .5.

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