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Detection of a second optical component in the H I cloud of the young dwarf galaxy SBS 0335-052 : New observations with the 6-m telescope
(1997-05-01)
The Blue Compact Dwarf (BCD) galaxy SBS 0335–052 is one of the most metal–deficient galaxies known and one of the best candidates for a young dwarf galaxy in the process of formation. A VLA HI map reveals an unusual ...
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 ...
Starbursts in H II Galaxies
(1997)
H II galaxies fall at the lower end on the scale of the energy output of their starbursts. Still, they are genuine Starburst Galaxies, producing large numbers of massive stars, and at a rate which is unsustainable 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 ...
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 ...