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Proposal Identification No.:

A1911

Date Received:

2004-Feb-02 12:00:18

Technical Page
Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Prop osal Title: ABSTRACT: Regular Astronomy Spectroscopy 34 Hours

Mapping Hi and OH Toward NGC 383 (3C31)

We request 34 hours of telescop e time to conduct mapping observations at the Hi and OH transitions towards and surrounding the extended, bright continuum region asso ciated with NGC 383 (3C31) in the Pisces-Perseus Sup ercluster (PPS). These observations will allow a detailed morphological analysis of the Hi of the system from the anticipated emission and absorption information which is otherwise conspicuously absent. From these data a unique, fully sampled and high spatial resolution map of the thermal characteristics of the system can b e calculated and a dedicated study of the molecular comp onent of the emission region will b e p ossible. These observations will adopt a hexagonal p ointing pattern to Nyquist sample the system, achieving an adequate velo city resolution for the required studies. This exp eriment will b e the first to analyse the Hi of NGC 383 and its environs on a group-wide scale. The resolution and sensitivity of the Arecib o telescop e makes it the most suitable instrument for this pro ject.

Name Erik M Muller

Institution Arecibo Observatory

E-mail emuller@naic.edu

Phone (787) 878 2612 x 359

Student 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 1


RFI Considerations Frequency Ranges Planned
1390 1631 1578 1685 1402 1643 1590 1697

2