GBT01A-011

Low Latitude Galactic HI Mapping with the GBT

Abstract

This project focuses on low latitude studies of Galactic 21-cm line and continuum emission from the Milky Way. The three observations described here measure the distribution and motion of the interstellar HI in the Milky Way disk. The first is a mapping project in support of the interferometer surveys of the Galactic plane which are currently underway, the second is to study the scale height and random velocity distribution of the HI in the inner Galaxy, and the third probes the outer Galaxy HI distribution, to test whether the Milky Way disk has an outer edge. The GBT is critical for all these projects because of its low stray radiation response due to the unblocked aperture. The three projects push to progressively higher sensitivity, testing the baseline quality more and more deeply.

**Investigators**
Name	Other *	Institution	Email	Phone
John Dickey	PI	University of Minnesota	john@astro.umn.edu	612 624-2895
Jay Lockman		NRAO-GB	jlockman@gb.nrao.edu	304-456-2302
Naomi McClure-Griffiths		University of Minnesota	naomi@astro.umn.edu	1-612-626-1819

* PI = Principal Investigator; T = Thesis observations; S = Student

Front Ends

Gregorian L(1.15 to 1.73 GHz)

Back Ends

GBT Spectrometer

Type of Observing

Spectroscopy

Switching Type

Frequency switching

Allocated time: 85.00 hours.

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