Shakhbazian compact galaxy groups. IV. Photometric and spectroscopic study of ShCG 8, ShCG 14 ShCG 19, ShCG 22

Details Shakhbazian compact galaxy groups. IV. Photometric and spectroscopic study of ShCG 8, ShCG 14 ShCG 19, ShCG 22 Shakhbazian compact galaxy groups. IV. Photometric and spectroscopic study of ShCG 8, ShCG 14 ShCG 19, ShCG 22

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005a%26a...439..973t&link_type=abstract

Astronomy and Astrophysics, Volume 439, Issue 3, September I 2005, pp.973-979

Astronomy and Astrophysics

Astrophysics

5

Galaxies: Clusters: General, Galaxies: Distances And Redshifts, Galaxies: Interactions, Galaxies: General, Galaxies: Kinematics And Dynamics, Galaxies:, Photometry

Scientific paper

We present the results of a detailed spectroscopic and photometric study of four Shakhbazian compact groups: ShCG 8, ShCG 14, ShCG 19, and ShCG 22. We determined the redshifts of member galaxies and radial velocity dispersions of groups. We also studied the distribution of the surface brightness of member galaxies in R and determined their morphological types. The profiles of the surface brightness versus semi-major axis, the curves of isophotal twisting, and Fourier parameter a4 are constructed. We found that some members of groups are in the process of interaction. We determined physical parameters of groups: virial masses, luminosities, mass-to-luminosity ratios, and the crossing times. On the basis of the results obtained in this and our previous works, the general properties of 22 ShCGs are discussed.

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