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The ALFALFA "Almost Darks" Campaign: Pilot VLA HI Observations of Five High Mass-to-Light Ratio Systems
John M. Cannon, Charlotte P. Martinkus, Lukas Leisman +13
We present VLA HI spectral line imaging of 5 sources discovered by ALFALFA. These targets are drawn from a larger sample of systems that were not uniquely identified with optical c…
AGC198606: A gas-bearing dark matter minihalo?
E. A. K. Adams, Y. Faerman, W. F. Janesh +9
We present neutral hydrogen (HI) imaging observations with the Westerbork Synthesis Radio Telescope of AGC198606, an HI cloud discovered in the ALFALFA 21cm survey. This object is…
The HI Mass Function and Velocity Width Function of Void Galaxies in the Arecibo Legacy Fast ALFA Survey
Crystal M. Moorman, Michael S. Vogeley, Fiona Hoyle +3
We measure the HI mass function (HIMF) and velocity width function (WF) across environments over a range of masses , and profile widths $1.3\log(km…
HIghMass -- High HI Mass, HI-rich Galaxies at z~0: Sample Definition, Optical and Halpha Imaging, and Star Formation Properties
Shan Huang, Martha P. Haynes, Riccardo Giovanelli +10
We present first results of the study of a set of exceptional HI sources identified in the 40% ALFALFA extragalactic HI survey catalog alpha.40 as being both HI massive (M_HI > 10^…
HIghMass - High HI Mass, HI-rich Galaxies at z~0: High-Resolution VLA Imaging of UGC 9037 and UGC 12506
Gregory Hallenbeck, Shan Huang, Kristine Spekkens +8
We present resolved HI observations of two galaxies, UGC 9037 and UGC 12506, members of a rare subset of galaxies detected by the ALFALFA extragalactic HI survey characterized by h…
An extremely optically dim tidal feature in the gas-rich interacting galaxy group NGC 871/NGC 876/NGC 877
K. Lee-Waddell, K. Spekkens, J. -C. Cuillandre +7
We present GMRT HI observations and deep CFHT MegaCam optical images of the gas-rich interacting galaxy group NGC 871/NGC 876/NGC 877 (hereafter NGC 871/6/7). Our high-resolution d…