The unusual barred SO galaxy NGC 4546

Details The unusual barred SO galaxy NGC 4546 The unusual barred SO galaxy NGC 4546

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986msngr..45...18g&link_type=abstract

ESO Messenger (ISSN 0722-6691), Sept. 1986, v. 45, p. 18-20.

Astronomy and Astrophysics

Astronomy

2

Astronomical Photometry, Astronomical Spectroscopy, Barred Galaxies, Absorption Spectra, Counter Rotation, Interstellar Gas, Line Spectra, Stellar Orbits

Scientific paper

The results of spectroscopic and photometric observations of NGC 4546 in May 1986 are reported. Details of the observational techniques and instrumentation employed for the scans in the 4900-5700 A interval are described. The spectral lines of the gas in the bar indicated that the gas rotates in a direction opposite to the stars in NGC 4546, which may be a visual artifact of the gas not being coplanar with the stars. Several hypotheses are presented for the source of the gas.

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