The detection of the CO emission of the elliptical galaxy NGC 7176

Details The detection of the CO emission of the elliptical galaxy NGC 7176 The detection of the CO emission of the elliptical galaxy NGC 7176

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...257..455h&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 257, no. 2, p. 455-458.

Astronomy and Astrophysics

Astrophysics

11

Carbon Monoxide, Elliptical Galaxies, Interstellar Matter, Stellar Evolution, Stellar Winds, Deflection, High Temperature Gases, Interacting Galaxies, Ionized Gases

Scientific paper

A search for CO emission in 18 southern elliptical galaxies is reported. The present, still scarce CO detections of elliptical galaxies suggest that the nominal H2 mass (i.e., the CO emission) is closely correlated with the HI mass. The nominal H2 masses are nearly equal to the HI masses. There may also be a good correlation between CO emission (or nominal H2 masses) and the IR flux. The CO emission (or nominal H2 mass) and possibly also the FIR flux per unit blue luminosity are expected to vary greatly between individual E galaxies. In that case the ratio of gas mass to dust mass may be nearly constant for elliptical galaxies, although their M(HI)/L(B) ratios show such a wide range of variations.

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