The Survey Of HI In Extremely Low-mass Dwarfs (shield)

Details The Survey Of HI In Extremely Low-mass Dwarfs (shield) The Survey Of HI In Extremely Low-mass Dwarfs (shield)

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21924404c&link_type=abstract

American Astronomical Society, AAS Meeting #219, #244.04

Astronomy and Astrophysics

Astronomy

Scientific paper

We present first results from the Survey of H I in Extremely Low-mass Dwarfs (SHIELD), a multi-configuration Expanded Very Large Array (EVLA) study of the neutral gas contents and dynamics of galaxies with H I masses in the 106-107 Solar mass range detected by the Arecibo Legacy Fast ALFA (ALFALFA) survey. We describe the survey motivation and concept demonstration using Very Large Array imaging of six low-mass galaxies detected in early ALFALFA data products. We then describe the primary scientific goals of SHIELD and present EVLA and WIYN 3.5m imaging of the 12 SHIELD galaxies. Optical and infrared imaging of the sample is currently being obtained with the Hubble Space Telescope and the Spitzer Space Telescope. When complete, SHIELD will provide a unique opportunity to study the structural parameters and star formation properties of the galaxies that inhabit the faint end of the HI luminosity function.

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