Abstract
view Abstract Citations (33) References (24) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Neutral-Hydrogen Observations and Maps of Early-Type Galaxies Burstein, David ; Krumm, Nathan ; Salpeter, E. E. Abstract The authors report measurements of neutral hydrogen in and around 12 elliptical, S0, and early-type spiral galaxies, as well as three spirals of later type. The observations were made with the 4 arcmin "flat" beam of the Arecibo Radio Telescope. Ten of the 12 early-type galaxies were detected, and show small H I masses of 4×107 to 8×108M_sun; (H0 = 100 km/s/Mpc). Very low upper limits of 3×106 and 6×106M_sun; of H I have been established for the S0 galaxies NGC 4382 and 7332. A faint dwarf galaxy 3 arcmin south of NGC 4382 was detected. Together with the previously detected dwarfs around NGC 2859, this suggests that H I-rich companions to H I-poor S0 galaxies may be common. In contrast to the other galaxies mapped in this program, the H I distribution in NGC 3773 is tightly concentrated to the center of the galaxy. The measurements are compared to earlier observations, and satisfactory agreement is found. Publication: The Astronomical Journal Pub Date: October 1987 DOI: 10.1086/114523 Bibcode: 1987AJ.....94..883B Keywords: Abundance; Astronomical Maps; Elliptical Galaxies; Hydrogen; Neutral Gases; Spiral Galaxies; Astronomical Spectroscopy; Dwarf Galaxies; Gauss Equation; Radial Velocity; Astrophysics; GALAXIES: GENERAL full text sources ADS | data products NED (16) SIMBAD (14)
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