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Proposal Identification No.:

A2220

Date Received:

2006-Feb-15 15:25:40

Technical Page
Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Prop osal Title: ABSTRACT: Regular Astronomy Spectroscopy Galactic 42.5 Hours

Interfaces in the ISM: Mapping a Cold Cloud Boundary With GALFA
we mapped part of the coldest HI cloud known. There are two types of the "bottom" the boundary is sharp with insignificant small-scale structure in different, because the boundary and the velocity structure are rough on many map the entire cloud.

Three years ago in the pre-ALFA era boundary of this sheetlike cloud. On the velocity. The "top" is completely scales. We propose to use GALFA to

Name Carl Heiles

Institution University of California, Berkeley

E-mail heiles@astron.berkeley.edu

Phone 510 642 4510

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
ALFA Atmospheric Observation Instruments:

Sp ecial Equipment or setup:

none

RFI Considerations Frequency Ranges Planned
1416.5 - 1423.5

1