Bibcode
Ryder, S. D.; Knapen, J. H.; Laine, S.; Perez, M. D.
Referencia bibliográfica
American Astronomical Society, 192nd AAS Meeting, #66.11; Bulletin of the American Astronomical Society, Vol. 30, p.916
Fecha de publicación:
5
1998
Número de citas
0
Número de citas referidas
0
Descripción
We present new near-infrared images and spectra of the circumnuclear
star formation regions in M100. Images in J, H, and K have been obtained
in conditions of 0.3'' seeing using IRCAM3 on UKIRT, and show a host of
objects not apparent in previous images (cf. Knapen et al. 1995, ApJ,
443, L73). We have also obtained H- and K-band spectra with CGS4 on
UKIRT of the nucleus and two of the most prominent circumnuclear star
formation regions of M100. An analysis of the near-infrared colours and
line ratios allows us to place new constraints on the ages, dust
extinction, and stellar populations of these regions.