Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...243..453o&link_type=abstract
Astrophysical Journal, Part 1, vol. 243, Jan. 15, 1981, p. 453-459.
Astronomy and Astrophysics
Astrophysics
72
Elliptical Galaxies, Galactic Nuclei, Galactic Radiation, Iue, Ultraviolet Spectroscopy, Brightness, Globular Clusters, Hot Stars, Radiant Flux Density, Red Shift, Spectral Energy Distribution
Scientific paper
The International Ultraviolet Explorer observations of the nuclei of the elliptical galaxies NGC 3379 and NGC 4472 show that the flux drops rapidly with decreasing wavelength until about 2300 A, below which the flux increases rapidly. The hot UV component of the radiation can be approximately represented by a blackbody at 30,000 K. The spectra of NGC 3379, NGC 4472, and M31 are very similar from 1260 to 8000 A. The hot UV component is abnormally weak in M 32 and abnormally strong in M 87. The UV spectrum from 1300 to 3200 A of the metal-rich globular cluster NGC 6624 resembles those of NGC 3379, NGC 4472, and M 31, and shows evidence for hot blue stars. A comparison of the UV fluxes with those measured in large-redshift normal galaxies shows good agreement, although allowance must be made for the line-strength differences found between the integrated galaxy spectra and the nuclear-region spectra.
Bertola Francesco
Capaccioli Massimo
Oke Bev J.
No associations
LandOfFree
IUE observations of two elliptical galaxies - NGC 3379 and NGC 4472 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 IUE observations of two elliptical galaxies - NGC 3379 and NGC 4472, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and IUE observations of two elliptical galaxies - NGC 3379 and NGC 4472 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1051620