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Proposal Identification No.: A2056 Date Received: 2006­Feb­01 20:57:12
Technical Page
Proposal Type: Commensal
General Category: Astronomy
Sub­Category: Spectroscopy
Observation Category: Galactic
Total Time Requested: 64 Hours
Proposal Title: AN ALFA PROPOSAL: TESTING THE MODIFIED BASKETWEAVE TECH­
NIQUE (a commensal proposal with the ZOA group)
ABSTRACT:
This proposal has 2 technical and at least 4 scientific goals. Technically: (1) We want to develop the modified
basketweave technique for Galactic observations with ALFA, necessary to complement the standard basketweave
technique (used frequently for GALFA observations) for regions around Dec of 18 degrees. (2) We want to
investigate and test strategies for commensal observing with the ZOA group, and also develop necessary software
for the reduction of data obtained with WAPPs in the basketweave mode. Scientifically: (1) These observations
will be used to study in detail an expending shell, discovered in the SETHI survey. (2) We will be able to study at
least several forbidden­velocity line wings. (3) We will continue mapping of the anti­center region (for which we
have already obtained large maps with ALFA) -- this will complement e#orts by Putman et al. to study the
disk/halo interface. (4) And, find new galaxies in the ZOA; please see the corresponding commensal proposal by
Henning et al.
Name Institution E­mail Phone Student
Eric J Korpela Space Sciences Labo­
ratory, UC Berkeley
korpela@gmail.com 510 643 6538 no
Service Observing Request Remot e Observing Request
X None No
All of the observing run. X Maybe
Part of the observing run. Yes
Queue Observing
Instrument Setup
ALFA
Atmospheric Observation Instruments:
1

Special Equipment or setup: none
RFI Considerations
Frequency Ranges Planned
1370­1470
This proposal requires coordination with Punta Salinas radar within the band 1222­1381 MHz..
This proposal requires coordination with GPS L3 at 1381 MHz.
2