Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...192...81j&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 192, no. 1-2, March 1988, p. 81-86.
Astronomy and Astrophysics
Astronomy
17
Active Galactic Nuclei, Emission Spectra, Galactic Evolution, Starburst Galaxies, Infrared Astronomy Satellite, Interstellar Gas, Ionized Gases, Line Spectra, Very Large Array (Vla), Wolf-Rayet Stars
Scientific paper
The authors present an analysis of IRAS-fluxes, CCD slit spectra and i and Hα images of the closely interacting pair of galaxies ESO 148-IG02. The galaxy is an exceptionally luminous IRAS source. The bulk of this radiation originates from a warm dust component heated by a burst of star formation. Centered on the nucleus of one of the galaxies, a flattened system of ionized gas of relatively high ionization is found. The emission-lines originating in this region exhibit broad wings, extending towards the blue. Narrower emission-lines and a lower level of excitation is found around the other nucleus. The ionized gas in the whole central region is found to be expanding. The spectra were modelled by a combination of ionization by stars and by shocks. It is suggested that supernova winds are driving the expansion of the gas. Spectral features characteristic of Wolf-Rayet stars are present over the whole central region.
Bergvall Nils
Johansson Leif
No associations
LandOfFree
The active centre of the galaxy merger ESO 148-IG 02. II 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 The active centre of the galaxy merger ESO 148-IG 02. II, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The active centre of the galaxy merger ESO 148-IG 02. II will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1669606