Premium
Surface photometry of NGC 3077
Author(s) -
AbdelHamid H.,
Notni P.
Publication year - 2000
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 - 10.1002/1521-3994(200012)321:5/6<315::aid-asna315>3.0.co;2-8
Subject(s) - photometry (optics) , physics , astrophysics , galaxy , astronomy , elliptical galaxy , stellar population , luminosity , population , star formation , stars , medicine , environmental health
We present surface photometry of the irregular galaxy NGC 3077 using two data sets: photographic plates and CCD images. Isophotal contours, luminosity and colour distributions as well as position angle and ellipticity curves show that NGC 3077 is similar to an elliptical galaxy in the outer regions with a disturbed blue centre. The outer isophotes 22‐25 mag / arcsec 2 are approximately centred on the dynamical centre, showing no clear evidence of the interaction with M81, the inner ones are disturbed by the dominant contribution of a reddened young population.