Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/DunnetagA1848tp.ps Дата изменения: Mon Apr 19 20:00:21 2004 Дата индексирования: Sat Dec 22 20:59:44 2007 Кодировка: Поисковые слова: annular solar eclipse

Proposal Identication No.: A1848 Date Received: 2004-Oct-01 07:36:52
Technical Page
Proposal Type: Regular
General Category: Astronomy
Sub-Category: Spectroscopy
Observation Category: Extragalactic
Total Time Requested: 15 Hours
Proposal Title: Investigating the ISM in SCUBA selected sources
ABSTRACT:
A number of sources in our SCUBA blank eld survey have been identied with low redshift spiral galaxies from
z=0.074 -0.176. This is unusual for submm selected objects - generally believed to be mergers at high redshifts. We
have used IRAM to detect CO(1-0) in these objects and nd unusually low ratios of molecular gas mass to submm
luminosity, implying a gas/dust ratio ~ 20. We wish to measure the HI content of these galaxies to see if the HI/H2
ratio is higher than in the IR luminous objects currently used as templates for these SCUBA sources. This study
will, for the rst time, shed light on the gas and dust properties of relatively nearby galaxies which have been
selected at 850m (i.e. contain large quantities of cold dust), no other sample of low redshift galaxies exists which
has been selected in this way. Understanding the nature of these objects will be important for forthcoming
instruments such as BLAST and Herschel, which should detect many more of them with their larger area surveys.
Name Institution E-mail Phone Student
Loretta Dunne Cardi University L.Dunne@astro.cf.ac.uk +44 2920
876782
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
1310 - 1335
1290 - 1315
1195 - 1220
This proposal requires coordination with Punta Salinas radar within the band 1222-1381 MHz..
2