BVRI surface photometry of mixed morphology pairs of galaxies. I. The first data set

Details BVRI surface photometry of mixed morphology pairs of galaxies. I. The first data set BVRI surface photometry of mixed morphology pairs of galaxies. I. The first data set

Aug 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003a%26a...406..415f&link_type=abstract

Astronomy and Astrophysics, v.406, p.415-426 (2003)

Astronomy and Astrophysics

Astrophysics

15

Galaxies: Spiral, Galaxies: Elliptical And Lenticular, Cd, Galaxies: Structure, Galaxies: Photometry, Galaxies: Interactions, Galaxies: Kinematics And Dynamics

Scientific paper

We present multicolor broad band (BVRI) photometry for a sample of 11 mixed morphology (E/S0+S) binary galaxies drawn from the Karachentsev Catalogue of Isolated Pairs of Galaxies (KPG). The data is part of an observational programme devoted to the systematic photometric study of one of the most complete and homogeneous pair samples available in the literature. We present B band, B-filtered images, B, V, R and I surface brightness and (B-V), (B-R) and (B-I) color profiles as well as geometric (epsilon = 1 - b/a, PA and a4/a) profiles for each component pair. In addition, integrated corrected B, V, R and I magnitudes and integrated (B-V), (B-R) and (B-I) colors are also presented. Internal and external data comparisons show consistency within the estimated errors. Most of this subsample have photometric parameters homogeneously derived for the first time. Geometric profiles from our surface photometry along with the broad-band imaging and color information have been used to re-evaluate morphology in all pairs. We find an important number of true mixed pairs with 5/11 (E+S) pairs in the present sample. The remaining objects include 3 disky pairs (composed of S0 and S members), 2 early-type pair comprising E and S0 members and 1 spiral-irregular pair. The measurements will be used in a series of forthcoming papers where we try to identify and isolate the main structural and photometric properties of disk and elliptical galaxies at different stages of interaction.
Based on data obtained at the 0.84 m and 1.5 m telescopes of the Observatorio Astronómico Nacional, San Pedro Mártir, Baja California, México, operated by the Instituto de Astronomía, UNAM.
Tables 1-3 and Figs. 5 to 15 are only available in electronic form at http://www.edpsciences.org

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