A new bright compact galaxy in Ursa Major

Details A new bright compact galaxy in Ursa Major A new bright compact galaxy in Ursa Major

Jan 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...105..369b&link_type=abstract

Astronomy and Astrophysics, vol. 105, no. 2, Jan. 1982, p. 369-371.

Astronomy and Astrophysics

Astrophysics

1

Astronomical Photometry, Compact Galaxies, Early Stars, Eclipsing Binary Stars, Galactic Structure, Variable Stars, Absorption Spectra, Astronomical Models, Emission Spectra, Line Spectra, Photographic Plates, Red Shift, Spectral Line Width, Stellar Evolution

Scientific paper

A previously unknown compact galaxy of integrated magnitude about 12.4 has been discovered as a variable star on Asiago Schmidt telescope plates. Large scale photographs and spectra have revealed that this remarkable object is an extremely compact blue galaxy with a strong continuum, emission and absorption lines, at a redshift z equals 0.09 (absolute magnitude of about -21.4 if H equals 50 km/s Mpc, diameter 3 kpc). The spectral characteristics resemble those of galaxies rich of early type stars. The variability, however, if confirmed by other observations, would have been detected here for the first time on such systems.

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