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Proposal Identification No.: A2221 Date Received: 2006­Feb­16 12:19:31
Technical Page
Proposal Type: Regular
General Category: Astronomy
Sub­Category: Spectroscopy
Observation Category: Galactic
Total Time Requested: 14 Hours
Proposal Title: HI Halo Clouds in the Outskirts of the Milky Way
ABSTRACT:
We propose to use ALFA and GALSPECT to map a region which is expected to be typical for a recently detected
population of HI Halo Clouds in the outer parts of the Milky Way. These halo clouds have similar properties as
those detected by Lockman (2002) in the inner part of the Galaxy. However, they are located at distances 13 <17 kpc and 3 Galactic fountain. Our aim is to find more Halo clouds to provide a statistically meaningful sample for defining
cloud properties, as well as to clarify a connection between clouds and more di#use filamentary structures. This
project is part of GALFA collaboration, and it also represents core data for the PhD thesis of Leonidas Dedes (to
be completed in 2007).
Name Institution E­mail Phone Student
Leonidas Dedes University of Bonn ldedes@astro.uni­bonn.de +49 (0)228 73
3668
G
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
ALFA
Atmospheric Observation Instruments:
Special Equipment or setup: none
RFI Considerations
1

Frequency Ranges Planned
2