STIS observations of the nuclear ionized gas in the elliptical galaxy M84

Details STIS observations of the nuclear ionized gas in the elliptical galaxy M84 STIS observations of the nuclear ionized gas in the elliptical galaxy M84

Jan 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997hstc.work...70b&link_type=abstract

The 1997 HST Calibration Workshop with a New Generation of Instruments, p. 70

Astronomy and Astrophysics

Astronomy

Black Holes (Astronomy), Elliptical Galaxies, Ionized Gases, Spectroscopy, Radio Galaxies, Interstellar Gas, Galactic Nuclei, Velocity, Kinematics, Shapes, Kepler Laws, Newton Methods, Calibrating, Disk Galaxies, Hubble Space Telescope

Scientific paper

We present optical long-slit spectroscopy of the nucleus of the nearby radio galaxy M84 (NGC 4374 = 3C 272.1) obtained with STIS aboard HST. The velocity curve has an S-shape with a peak amplitude of 400 km/s at 0".1 = 8 pc from the nucleus. To model the observed gas kinematics, Bower et al. fit a thin Keplerian disk model to these data, leading to the conclusion that a is approx. = 1.5 x 109 Solar mass dark compact mass (most likely a supermassive black hole) resides in the nucleus of M84.

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