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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 ...
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 ...
The Absence of Diffuse Gas around the Dwarf Spheroidal Galaxy Leo I
(1997)
We have obtained spectra of three QSO/AGNs with the GHRS aboard the Hubble Space Telescope to search for absorption from low column density gas in the halo of the dwarf spheroidal (dSph) galaxy Leo I. The probe sight lines ...
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 ...
Gas segregation in the interacting system Arp 105
(1997)
Arp 105 is an example of a collision between an infrared luminous spiral (NGC 3561A) and an elliptical (NGC 3561B) galaxy in a cluster of galaxies. Duc & Mirabel (1994) reported in this system the genesis of star{forming ...
HI in AGN
(Astronomical Society of the Pacific, 1996)
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 ...
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 ...
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 ...
An H i/Optical Atlas of H II Galaxies and Their Companions
(1995)
We have conducted a directed search for intergalactic H I clouds, using H II galaxies as pointers to fields on the sky likely to contain such clouds. This extends our previous survey (Taylor et al. 1993) by using the VLA ...