Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/SchneidertagA1972tp.ps Дата изменения: Mon Aug 30 23:57:55 2004 Дата индексирования: Sat Dec 22 23:34:14 2007 Кодировка: Поисковые слова: meteor shower

Proposal Identication No.: A1972 Date Received: 2004-Jun-01 13:53:14
Technical Page
Proposal Type: Regular
General Category: Astronomy
Sub-Category: Spectroscopy
Observation Category: Extragalactic
Total Time Requested: 33 Hours
Proposal Title: A Search for Massive Low Surface Brightness Galaxies
ABSTRACT:
Gaining a rm understanding of Low Surface Brightness (LSB) galaxy properties and number counts is vital for
testing galaxy formation and evolution theories, as well as for determining the amount of baryons that are
contained in galaxies. Observations show increasingly that the `traditional' view of LSB galaxies as low mass, blue
young dwarf-like systems is actually incorrect. For example, our recent HI observations at Nancay and Arecibo
have, surprisingly, increased the number of massive (MHI  10 10 M ) LSB galaxies by almost a factor of ve,
adding 68 objects to the 18 that were known beforehand. While the results of our surveys are signicant, showing
that massive LSB galaxies are far more abundant than has previously been believed, the surveys are incomplete
and more, systematic, HI observations of a homogeneous sample are required { the aim of the present proposal.
Name Institution E-mail Phone Student
Steve Schneider University of
Massechusetts
schneider@astro.umass.edu 413-545-2076 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
L-wide
Atmospheric Observation Instruments:
Special Equipment or setup: none
RFI Considerations
1

Frequency Ranges Planned
1230 -1425
This proposal requires coordination with Punta Salinas radar within the band 1222-1381 MHz..
This proposal requires coordination with GPS L3 at 1381 MHz.
2