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Proposal Identication No.: A1511 Date Received: 2001-Feb-01 17:39:36
Technical Page
Proposal Type: Regular
General Category: Astronomy
Sub-Category: Spectroscopy
Observation Category: Extragalactic
Total Time Requested: 20 Hours
Proposal Title: Low Surface Brightness Galaxies in X-ray Emitting Clusters
ABSTRACT:
Successful surveys for the detection of low surface brightness disk galaxies have been primarily undertaken in spiral
rich clusters with little or no X-ray emission. Based on these detections, it has been shown that the number density
of galaxies in the local Universe is dominated by galaxies of low surface brightness. This, however, begs the
question of whether or not the previously surveyed environments are biased in their preponderance of low surface
brightness systems. To test this hypothesis we have undertaken a survey of the spiral-rich, strongly X-ray emitting
cluster Abell 1367. As a rst step in this project we have optically discovered 36 previously un-identied galaxies in
the central region of Abell 1367. However, positive identication of the newly discovered galaxies with the cluster
requires knowing the objects' redshifts. To accomplish this, we propose to use the Arecibo 305m telescope to search
for these galaxies in HI.
Name Institution E-mail Phone Student
Karen L O'Neil Arecibo Observatory koneil@naic.edu 787-878-2612
I want to do remote observing.
Instrument Setup
L-narrow
Atmospheric Optical Instruments:
Special Equipment or setup: none
RFI Considerations
Frequency Ranges Planned
1350-1430
This proposal requires coordination with Punta Salinas radar within the band 1222-1381 MHz..
This proposal requires coordination with GPS L3 at 1381 MHz.
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