A Near-Infrared μ0,K -- log h Relation for Early-Type Spiral Galaxy Disks

Bibcode
2001ASPC..230..101G
Graham, A. W.
Referencia bibliográfica

in Galaxy Disks and Disk Galaxies, proceeding of a conference held in Rome, Italy, June 12-16, 2000 at the Pontifical Gregorian University and sponsored by the Vatican Observatory. ASP Conference Series, Vol. 230. Edited by José G. Funes, S. J. and Enrico Maria Corsini. San Francisco: Astronomical Society of the Pacific. ISBN: 1-58381-063-3, 2001, pp. 101-102

Fecha de publicación:
0
2001
Número de autores
1
Número de autores del IAC
1
Número de citas
2
Número de citas referidas
2
Descripción
The K-band light-profiles from a sample of roughly 100 disk galaxies have been simultaneously modelled with a seeing convolved Sersic r1/n bulge and an exponential disk. Rather than a constant central disk surface brightness, in the near-infrared, μ0,K is shown to decrease with the logarithm of the disk scale-length (log h) - with a correlation coefficient equal to 0.78, a slope of -2, and a standard deviation of 0.47 mag arcsec-2. Galaxy types Scd or later are observed to have fainter disks.
Tipo
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