Anomalous kinematics and the ionization of the H-alpha arm in NGC 4258

Details Anomalous kinematics and the ionization of the H-alpha arm in NGC 4258 Anomalous kinematics and the ionization of the H-alpha arm in NGC 4258

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...240l..15d&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 240, no. 2, Dec. 1990, p. L15-L18.

Astronomy and Astrophysics

Astrophysics

7

Gas Ionization, H Alpha Line, Kinematics, Spiral Galaxies, Astronomical Models, Astronomical Spectroscopy

Scientific paper

The detection of a high-velocity component of the diffuse ionized gas in the anomalous H-alpha arm of NGC 4258 from new long-slit spectra in the H-alpha regime is reported. This gas component deviates by up to 250 km/s from the undisturbed velocity field. The nuclear emission lines are found to be asymmetric in the NW-SE direction. The emission lines in the 'jet'-like structure are broad, with FWHM up to 350 km/s, and the ionization within this structure changes to lower excitation with increasing distance from the nucleus.

Affiliated with

Also associated with

No associations

Rating

Anomalous kinematics and the ionization of the H-alpha arm in NGC 4258 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Anomalous kinematics and the ionization of the H-alpha arm in NGC 4258, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anomalous kinematics and the ionization of the H-alpha arm in NGC 4258 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1628215