Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21942822h&link_type=abstract
American Astronomical Society, AAS Meeting #219, #428.22
Astronomy and Astrophysics
Astronomy
Scientific paper
The Arecibo Galaxy Environment Survey is an ongoing neutral hydrogen galaxy survey with higher sensitivity and better spatial and velocity resolution than previous 21cm multi-beam surveys. Here, we present results from the AGES 7448 cube, a 5x4 sq deg field including the NGC 7448 galaxy group and the surrounding volume out to 19,000 km/sec. In the cube, we identify a total of 376 HI sources, including 217 new detections. A wedge plot of the detections shows clear filamentary structure throughout the volume of the cube. Within the NGC 7448 group, we detect an HI tidal bridge connecting NGC 7448 to the rest of the group members. A preliminary search for optical counterparts was performed using SDSS; of our 376 sources, we find 4 sources with early type counterparts and 12 sources with no obvious SDSS counterpart that will require follow up. Our source catalogue includes fitted positions, velocities, velocity widths, flux and HI mass measurements for each of the 376 sources.
Herbst Hanna
Minchin Robert
Taylor Richard
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