Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...318..520c&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 318, July 15, 1987, p. 520-530.
Astronomy and Astrophysics
Astrophysics
122
Andromeda Galaxy, Galactic Structure, Novae, Spatial Distribution, Star Distribution, Stellar Spectrophotometry, X Ray Sources, Binary Stars, Charge Coupled Devices, Galactic Bulge, Galactic Nuclei, Globular Clusters, H Alpha Line
Scientific paper
Results from an H-alpha survey for novae in the bulge of M31 are reported, and the spatial distribution of the nova population is analyzed. It is shown that in M31's central bulge the distribution of novae follows that of the light to within about 10 arcsec of the nucleus, refuting the notion that there is a nova 'hole' near the center of the galaxy. The Hubble-Arp nova sample is reanalyzed, concluding that the novae observed in the central 30 arcmin x 15 arcmin region belong almost exclusively to the bulge population. This result is compared to the observed cataclysmic variable distribution in the Galaxy, concluding that M31's spheroidal nova population is still compatible with the thin disk distribution of cataclysmic variables measured in the solar neighborhood. Possible explanations for the high specific nova rate of the bulge are discussed.
Ciardullo Robin
Ford Holland C.
Jacoby George H.
Neill James D.
Shafter Allen W.
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