Old stellar populations. I - A spectroscopic comparison of galactic globular clusters, M31 globular clusters, and elliptical galaxies

Details Old stellar populations. I - A spectroscopic comparison of galactic globular clusters, M31 globular clusters, and elliptical galaxies Old stellar populations. I - A spectroscopic comparison of galactic globular clusters, M31 globular clusters, and elliptical galaxies

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...287..586b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 287, Dec. 15, 1984, p. 586-609. Research supported by the University of Cal

Astronomy and Astrophysics

Astrophysics

471

Abundance, Andromeda Galaxy, Astronomical Spectroscopy, Elliptical Galaxies, Galactic Clusters, Galactic Nuclei, Globular Clusters, Absorption Spectra, Balmer Series, Iue, Metallicity, Wavelengths

Scientific paper

Integrated 9 A-resolution spectra in the 4000-6300 A region are presented for 17 Galactic globular clusters and 19 M31 globular clusters. Indices for 11 molecular bands and lines and several broadband colors are compared between the M31 and galactic cluster systems, as well as with the nuclei of 170 E galaxies. H-beta and CN are noted to differ markedly among the three groups. It is suggested that the three old stellar populations presently examined must differ in one or more respects beyond mean metallicity. Several models are analyzed to account for the higher H-beta and CN in M31 globulars. Most models fail to yield the requisite simultaneous H-beta and CN enhancements, except perhaps those of younger age. Satellite UV flux measurements will eventually offer an important tool for discriminating between various possible warm star components.

Affiliated with

Also associated with

No associations

Rating

Old stellar populations. I - A spectroscopic comparison of galactic globular clusters, M31 globular clusters, and elliptical 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 Old stellar populations. I - A spectroscopic comparison of galactic globular clusters, M31 globular clusters, and elliptical galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Old stellar populations. I - A spectroscopic comparison of galactic globular clusters, M31 globular clusters, and elliptical galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-734422