Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/VanLoontagA1866tp.ps Дата изменения: Sat Jul 31 20:26:50 2004 Дата индексирования: Sat Sep 6 05:14:48 2008 Кодировка: Поисковые слова: galactic cluster

Proposal Identification No.: A1866 Date Received: 2004­Sep­30 14:38:26
Technical Page
Proposal Type: Regular
General Category: Astronomy
Sub­Category: Spectroscopy
Observation Category: globular clusters
Total Time Requested: 51 Hours
Proposal Title: H I and OH in galactic globular clusters
ABSTRACT:
The intra­cluster medium of globular clusters is continuously replenished with mass lost by red giant stars in these
clusters. This mass is then stripped from the cluster and mixed with the interstellar medium of the parent galaxy
as a result of ram pressure as the cluster crosses the galactic plane. Previous searches for this intra­cluster medium
have had very limited success. We here propose to undertake the most sensitive ever survey for H I (at 21 cm) and
OH (at 18 cm) gas within a sample of 11 galactic globular clusters, in order to better constrain the production and
retention of the intra­cluster medium.
Name Institution E­mail Phone Student
Jacco Th van Loon Keele University jacco@astro.keele.ac.uk +441782583331 no
Service Observing Request Remot e Observing Request
X None X No
All of the observing run. Maybe
Part of the observing run. Yes
Queue Observing
Instrument Setup
L­wide
Atmospheric Observation Instruments:
Special Equipment or setup: none
RFI Considerations
Frequency Ranges Planned
1

1417­1423
1609­1615
1663­1669
1717­1723
This proposal requires Iridium RFI protection at 1612 MHz between 10pm and 6am EST.
2