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UGC 12732: A Disk Galaxy Lacking High-Velocity Clouds
(1997)
We used the Very Large Array to obtain high-sensitivity 21cm synthesis images of the disk galaxy UGC 12732. This object did not show high-velocity wings in Arecibo telescope spectra obtained to search for populations of ...
Star formation histories in H II galaxies. I. Optical and radio observations
(1997)
In this paper we report CCD photometry in broad band B, R, and I colors, as well as in the H , for a sample of eight Hii galaxies with strong radio emission. In addition, we present new radio continuum observations in the ...
A dynamical analysis of the HII galaxy II Zwicky 33 and its low surface brightness companion
(1997)
We present radio and optical observations and an analysis of the dynamics of the H II galaxy II Zw 33 and its Low Surface Brightness companion. Both galaxies were observed in the radio with the VLA in its B- and C-array ...
High-Velocity H I in the Spiral Galaxy NGC 5668
(1996)
The nature and origin of the high-velocity clouds (HVCs) of neutral hydrogen in our Galaxy are not well understood, in part because of the uncertain distances to the clouds. As a result it is difficult to measure the mass ...
A Survey of Low Surface Brightness Dwarf Galaxies to Detect H i-rich Companions
(1996)
We have conducted a survey for H I-rich companions in the vicinity of low surface brightness (LSB) dwarf galaxies, objects that are characterized by low rates of massive star formation. This survey complements our earlier ...
H 2O and OH Masers as Probes of the Obscuring Torus in NGC 1068
(1996)
We report the discovery of OH masers and positionally resolved H_2_O maser emission in the nucleus of NGC 1068. The brightest H_2_O masers are associated with the radio continuum component that is probably the location of ...
HI in AGN
(Astronomical Society of the Pacific, 1996)
The Interaction between Spiral Galaxies IC 2163 and NGC 2207. II. Models
(1995)
Observations of the disturbed morphologies and internal velocity distributions, and of the relative positions, orientations, and centroid velocities of the interacting spiral galaxies IC 2163 and NGC 2207, are reproduced ...
The Interaction between Spiral Galaxies IC 2163 and NGC 2207. I. Observations
(1995)
High-resolution H I observations taken at the VLA of the interacting pair of galaxies NGC 2207 and IC 2163 are presented, compared with optical and radio continuum images, and analyzed with detailed computer simulations ...