238 citations · 4.7k across the 71 of their papers we have counts for
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Star Formation in HI Selected Galaxies I: Sample Characteristics
J. F. Helmboldt, R. A. M. Walterbos, G. D. Bothun +2
A sample of 69 galaxies with radial velocities less than 2500 km/s was selected from the HI Parkes All Sky Survey (HIPASS) and imaged in broad band B and R and narrow band H-alpha…
A Hubble Space Telescope WFPC2 Investigation of the Disk-Halo Interface in NGC891
Joern Rossa, Ralf-Juergen Dettmar, Rene A. M. Walterbos +1
We present deep narrowband observations with high spatial resolution of extraplanar diffuse ionized gas in the halo of NGC891, obtained with the WFPC2 on-board the HST. Our H-alpha…
Andromeda IX: A New Dwarf Spheroidal Satellite of M31
Daniel B. Zucker, Alexei Y. Kniazev, Eric F. Bell +19
We report the discovery of a new dwarf spheroidal satellite of M31, Andromeda IX, based on resolved stellar photometry from the Sloan Digital Sky Survey (SDSS). Using both SDSS and…
A New Giant Stellar Structure in the Outer Halo of M31
Daniel B. Zucker, Alexei Y. Kniazev, Eric F. Bell +17
The Sloan Digital Sky Survey has revealed an overdensity of luminous red giant stars ~ 3 degrees (40 projected kpc) to the northeast of M31, which we have called Andromeda NE. The…