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Spectral study of BIG objects on the 2.6-m telescope at the Byurakan astrophysical observatory

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Abstract

Results of spectral observations of 45 objects from the BIG sample (corresponding to 35 IRAS sources) obtained on the 2.6-m telescope at the BAO are reported. Emission lines are observed for 42 galaxies, 1 object is an absorption galaxy, and 2 turned out to be stars. The red shifts are determined, the radial velocities, distances, sizes, and absolute stellar magnitudes are calculated, the parameters of the spectral lines are determined, the objects are classified according to their activity type, and the IR and far IR luminosities are calculated. Of the 42 emission galaxies, 1 was type Sy2, 2 were LINERs, 1 was an AGN (Sy2 or LINER), 4 were composite, 25 were HII (including 6 with nuclear star-formation activity), and 9 were Em of undetermined type (3 of which may be AGN). Calculations show that 23 of the objects are LIG. A physical coupling is discovered for 9 multiple systems. Spectra of some of the galaxies are shown.

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Authors and Affiliations

  1. V. A. Ambartsumyan Byurakan Astrophysical Observatory, Armenia

    L. A. Sargsyan & A. M. Mickaelian

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  1. L. A. Sargsyan
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  2. A. M. Mickaelian
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__________

Translated from Astrofizika, Vol. 49, No. 1, pp. 23–40 (February 2006).

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Sargsyan, L.A., Mickaelian, A.M. Spectral study of BIG objects on the 2.6-m telescope at the Byurakan astrophysical observatory. Astrophysics 49, 19–35 (2006). https://doi.org/10.1007/s10511-006-0003-5

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  • DOI: https://doi.org/10.1007/s10511-006-0003-5

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