A successful survey of H I in low-luminosity elliptical galaxies

Details A successful survey of H I in low-luminosity elliptical galaxies A successful survey of H I in low-luminosity elliptical galaxies

May 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...280..107l&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 280, May 1, 1984, p. 107-116.

Astronomy and Astrophysics

Astronomy

45

Centimeter Waves, Elliptical Galaxies, Hydrogen, Interstellar Gas, Luminosity, Radio Sources (Astronomy), Spectral Line Width, Stellar Mass Ejection

Scientific paper

The authors have made a neutral hydrogen survey of 28 faint elliptical galaxies using the 305 m antenna of the Arecibo Observatory. Eleven galaxies were detected, with 4 of them showing strong H I emission. The authors find a correlation of H I line width with blue luminosity, similar to the Faber-Jackson relation. They discuss the variation of physical conditions with luminosity that is likely to produce a high rate of H I detection in low-luminosity ellipticals. In the context of a simple wind model, the variation of heating and cooling times scales predicts significant accumulation as the result of stellar mass loss in the low-luminosity systems.

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