8-13 microns spectrophotometry of galaxies. IV - Six more Seyferts and 3C345. V - The nuclei of five spiral galaxies

Details 8-13 microns spectrophotometry of galaxies. IV - Six more Seyferts and 3C345. V - The nuclei of five spiral galaxies 8-13 microns spectrophotometry of galaxies. IV - Six more Seyferts and 3C345. V - The nuclei of five spiral galaxies

Apr 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985mnras.213..777a&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 213, April 15, 1985, p. 777-797.

Astronomy and Astrophysics

Astronomy

77

Galactic Nuclei, Infrared Spectra, Quasars, Seyfert Galaxies, Spectrophotometry, Active Galaxies, Astronomical Models, Cosmic Dust, Starburst Galaxies

Scientific paper

The low-resolution spectra of six Seyfert nuclei and the quasar 3C345 are presented, together with four more starburst nuclei spectra observed in a companion study. The spectra were obtained using the UCL LH-cooled grating spectrometer with an array of 25 As:Si photoconductors in a low resolution mode covering a wavelength range of 7.7-13.3 microns. It is shown that the active galaxies are characterized by power law spectra with a tendency for the spectral index to steepen with the progression quasar-Seyfert 1-Seyfert 2 and with silicate absorption in Seyfert 2 galaxies. In contrast, the starburst galaxy spectra are dominated by emission from unidentified dust-associated features and frequently show the fine structure forbidden line of Ne II. The possible origins for the unidentified features in the starburst galaxy spectra are discussed.

Affiliated with

Also associated with

No associations

Rating

8-13 microns spectrophotometry of galaxies. IV - Six more Seyferts and 3C345. V - The nuclei of five spiral galaxies 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 8-13 microns spectrophotometry of galaxies. IV - Six more Seyferts and 3C345. V - The nuclei of five spiral galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 8-13 microns spectrophotometry of galaxies. IV - Six more Seyferts and 3C345. V - The nuclei of five spiral galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1289456