Persson, S. E. and Cohen, J. G. and Sellgren, K. and Mould, J. and Frogel, Jay A. (1980) Infrared photometry of the semistellar nucleus of M31. Astrophysical Journal, 240 . pp. 779-784. ISSN 0004-637X. doi:10.1086/158290. https://resolver.caltech.edu/CaltechAUTHORS:20190531-091630558
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Abstract
New broad-band infrared JHK data and narrow-band CO and H_2O indices for the semistellar nucleus of M31 are presented. The data were obtained specifically to test a prediction of a recent synthesis model by Faber and French in which the ratio of dwarf-to-giant light increases strongly in going from the bulge to the nucleus of M31. The new infrared data do not support such a model. Some alternative explanations for the behavior of the various indices are given, but the apparent conflict between the Faber-French interpretation of the strength of the Na i λ8190 feature and our data is not satisfactorily resolved.
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| Additional Information: | © American Astronomical Society • Provided by the NASA Astrophysics Data System. Received 1980 February 25; accepted 1980 March 25. Cerro Tololo Inter-American Observatory, which is supported by the National Science Foundation under contract no. AST 78-27879. This work was supported in part by NSF grant AST 77-20516 and NASA grant NGL 05-002-207. | |||||||||
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| Subject Keywords: | galaxies : individual — galaxies : nuclei — galaxies : stellar content | |||||||||
| DOI: | 10.1086/158290 | |||||||||
| Record Number: | CaltechAUTHORS:20190531-091630558 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20190531-091630558 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 95968 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | George Porter | |||||||||
| Deposited On: | 31 May 2019 20:51 | |||||||||
| Last Modified: | 16 Nov 2021 17:17 |
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