NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-24 T06:00:26 PDT
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For refcode 1999A&AS..137..101M:
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Copyright by European Southern Observatory (ESO). Reproduced by permission
1999A&AS..137..101M Near-infrared observations of galaxies in Pisces-Perseus. I. (H)-band surface photometry of 174 spirals. MORIONDO G., BAFFA C., CASERTANO S., CHINCARINI G., GAVAZZI G., GIOVANARDI C., HUNT L.K., PIERINI D., SPERANDIO M., TRINCHIERI G. Received November 30, 1998; accepted March 8, 1999 Abstract: We present near-infrared, H-band (1.65micron), surface photometry of 174 spiral galaxies in the area of the Pisces-Perseus supercluster. The images, acquired with the ARNICA camera mounted on various telescopes, are used to derive radial profiles of surface brightness, ellipticities, and position angles, together with global parameters such as H-band magnitudes and diameters. The mean relation between H-band isophotal diameter D_21.5_ and the B-band D_25_ implies a B-H color of the outer disk bluer than 3.5; moreover, D_21.5_/D_25_ depends on (global) color and absolute luminosity. The correlations among the various photometric parameters suggest a ratio between isophotal radius D_21.5_/2 and disk scale length of ~3.5 and a mean disk central brightness =~17.5H-mag/arcsec^-2^. We confirm the trend of the concentration index C_31_ with absolute luminosity and, to a lesser degree, with morphological type. We also assess the influence of non-axisymmetric structures on the radial profiles and on the derived parameters. Keywords: galaxies: fundamental parameters - galaxies: spiral - infrared: galaxies
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