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Massive stars shaping the ISM:Hi holes and shells in nearby galaxies
(1999)
Neutral hydrogen (H I) is a magnificent tool when studying the structure of the interstellar medium (ISM) as it is relatively easily observable and can be mapped at good spatial and velocity resolution with modern instruments. ...
VLA HI imaging of the Low Surface Brightness dwarf galaxy DDO47
(Astronomical Society of the Pacific, 1999)
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 ...
HI Observations of Early-Type Galaxies
(Astronomical Society of the Pacific, 1999)
We present high resolution (15") HI observations of the S0 galaxy NGC 404. We derive an HI mass of MHi = 6.7 x 10???, in good agreement with previous measurements. The HI is distributed in a broad annulus (a doughnut) and ...
Interaction Between NGC 5394 and NGC 5395
(Astronomical Society of the Pacific, 1999)
The spiral galaxies NGC 5394/95 (at a distance of 47 Mpc) are involved in a recent, close, nonmerging encounter. The smaller galaxy, NGC 5394, has two long, fairly symmetric, open tidal arms (see Figure 1); in numerical ...
Panel Discussion: Star Formation in Early-Type Galaxies
(Astronomical Society of the Pacific, 1999)
A panel discussion on past and current star formation in early-type galaxies was held on the second day of the conference. The panelists were Luc Binette, Elias Brinks, Paul Goudfrooij, Lisa Young, George Hau, Rick Pogge ...
HI properties of Low Surface Brightness dwarf and blue compact dwarf galaxies
(Astronomical Society of the Pacific, 1999)
We present high resolution (~15") VLA HI observations of one LSB dwarf galaxy and 5 Blue Compact Dwarfs. Previous works have emphasized the difference in the peak column density of the HI between the two types of galaxy. ...
Neutral Hydrogen (21 Centimeter) Absorption in Seyfert Galaxies: Evidence for Free-Free Absorption and Subkiloparsec Gaseous Disks
(1999)
Active galaxies are thought to be both fueled and obscured by neutral gas removed from the host galaxy and funneled into a central accretion disk. We performed a VLA imaging survey of 21 cm absorption in Seyfert and starburst ...
Study of the interacting system NGC 6845
(1999)
We present optical spectroscopy, B, V , R, and I CCD photometry, and VLA neutral hydrogen observations of the interacting quartet NGC 6845, also know as Klemola 30. NGC 6845 A, the dominant component, sports a broad and ...
Massive stars shaping the ISM:Hi holes and shells in nearby galaxies
(The International Astronomical Union, 1999)
Neutral hydrogen (H I) is a magnificent tool when studying the structure of the interstellar medium (ISM) as it is relatively easily observable and can be mapped at good spatial and velocity resolution with modern instruments. ...