[142.14] HI Observations of High Velocity Clouds

AAS 205th Meeting, 9-13 January 2005
Session 142 Galactic Structure, Halo and High Velocity
Poster, Thursday, January 13, 2005, 9:20am-4:00pm, Exhibit Hall

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[142.14] HI Observations of High Velocity Clouds

K. Saucedo-McQuade (Oberlin College/REU Arecibo Oberservatory), C. Pantoja (UPR/Arecibo Observatory), M. Lebron, E. Muller (Arecibo Observatory)

We present the reduced data of selected observations of High Velocity Clouds (HVCs). The data were from previous observations of HVCs made at Arecibo Observatory using L and C band receivers.

For this project, a sample of HVCs was selected from the HI survey by Hartmann and Burton (1997). These HVCs were selected so that they have a strong continuum source near their position. The data was studied for three sources from this survey. These sources were observed using a cross pattern with 12 minutes ON source and 12 minutes OFF source. The OFFs were taken at positions 1 beamwidth away (NS EW) from the continuum source position. The associated absorption line spectra was reduced using available IDL routines and the column densities for HI and formaldehyde data were calculated.

This research was part of the Research Experiences for Undergraduates (REU) Program at Arecibo Observatory. The REU Program is sponsored by the National Science Foundation. Arecibo Observatory is operated by NAIC, Cornell University, under a cooperative agreement with the NSF.

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