We present H I synthesis observations of the nearby dwarf galaxy IC 2574 (a member of the M81 group of galaxies) made with the NRAO2 Very Large Array (VLA) in its B, C, and D conÐgurations at high spatial and velocity ...

We present high resolution VLA-observations of the nearby Low Surface Brightness Galaxy DDO 47. This object shows many hole-like structures in its neutral interstellar medium. The majority of the detected H I-shells are ...

Observations with the Hubble Space Telescope reveal an irregular network of dust spiral arms in the nuclear region of the interacting disk galaxy NGC 2207. The spirals extend from »50 to »300 pc in galactocentric radius, ...

We present a multiwavelength study of a supergiant shell within the violent interstellar medium of the nearby dwarf galaxy IC 2574, which is a member of the M81 group of galaxies. Neutral hydrogen (H i) observations obtained ...

The edge-on, nearby spiral galaxy NGC 5907 has long been used as the prototype of a “noninteracting” warped galaxy. We report here the discovery of two interactions with companion dwarf galaxies that substantially change ...

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 ...

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 ...

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 ...

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 ...