168 citations · 518 across the 8 of their papers we have counts for
8 papers
The internal dynamical equilibrium of HII regions: a statistical study
M. Relano, J. E. Beckman, A. Zurita +2
We present an analysis of the integrated Halpha emission line profiles for the HII region population of the spiral galaxies NGC 1530, NGC 6951 and NGC 3359. We show that 70% of the…
The origin of the ionization of the diffuse interstellar medium in spiral galaxies. II. Modelling the distribution of ionizing radiation in NGC 157
A. Zurita, J. E. Beckman, M. Rozas +1
In this paper we make a quantitative study of the hypothesis that the diffuse H-alpha emitted from the discs of spiral galaxies owes its origin to the ionizing photons escaping fro…
An Early-Time Infrared and Optical Study of the Type Ia Supernova 1998bu in M96
M. Hernandez, W. P. S. Meikle, A. Aparicio +22
We present first-season infrared (IR) and optical photometry and spectroscopy of the Type Ia Supernova 1998bu in M96. We also report optical polarimetry of this event. SN1998bu is…
Optical and Infrared photometry of the type IIn SN 1998S:Days 11-146
A. Fassia, W. P. S. Meikle, W. D. Vacca +1
We present contemporaneous optical and infrared photometric observations of the type IIn SN 1998S covering the period between 11 and 146 days after discovery. The infrared data con…
Populations of high-luminosity density-bounded H II regions in spiral galaxies? Evidence and implications
J. E. Beckman, M. Rozas, A. Zurita +2
(Abridged) We present evidence that the HII regions of high luminosity in disk galaxies may be density bounded, so that a significant fraction of the ionizing photons emitted by th…
Kinematics of ionized and molecular hydrogen in the core of M100
J. H. Knapen, I. Shlosman, C. H. Heller +3
We present high angular and velocity resolution two-dimensional kinematic observations in the spectral lines of H alpha and CO J=1-0 of the circumnuclear starburst region in the ba…