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Proposal Identification No.:

A1866

Date Received:

2004-Sep-30 14:38:26

Technical Page
Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Prop osal Title: ABSTRACT: Regular Astronomy Spectroscopy globular clusters 51 Hours

H I and OH in galactic globular clusters

The intra-cluster medium of globular clusters is continuously replenished with mass lost by red giant stars in these clusters. This mass is then stripp ed 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 intra-cluster medium have had very limited success. We here prop ose 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 b etter constrain the pro duction and retention of the intra-cluster medium.

Name Jacco Th van Loon

Institution Keele University

E-mail jacco@astro.keele.ac.uk

Phone Student +441782583331 no

Service Observing Request

Remot e Observing Request

X

None All of the observing run. Part of the observing run. Queue Observing

X

No Maybe Yes

Instrument Setup
L-wide Atmospheric Observation Instruments:

Sp ecial Equipment or setup:

none

RFI Considerations Frequency Ranges Planned
1


1417-1423 1609-1615 1663-1669 1717-1723 This proposal requires Iridium RFI protection at 1612 MHz between 10pm and 6am EST.

2