GBT02A-021

A Search for Recombination Lines from Diffuse Gas in the Galactic Center Region

Abstract

There is a significant component of ionized gas in the Galactic Center region which has not yet been detected in any spectral line. We believe that previous radio recombination line observations were corrupted by instrumental baseline resulting from the strong continuum and low elevation of the Galactic Center. We would like to use the GBT to search for this emission at L, S and C bands. Detections will give us information on the kinematics of ionized gas, its temperature and density.

**Investigators**
Name	Other *	Institution	Email	Phone
Jay Lockman	PI	NRAO-GB	jlockman@gb.nrao.edu	304-456-2302
Anish Roshi		NRAO-GB	aroshi@nrao.edu	304-456-2130
Dana Balser		NRAO - Green Bank	dbalser@nrao.edu	304-456-2204

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

Front Ends

Gregorian L(1.15 to 1.73 GHz)
Gregorian S(1.73 to 2.6 GHz)
Gregorian C(3.95 to 5.85 GHz)

Back Ends

GBT Spectrometer

Type of Observing

Spectroscopy

Switching Type

Position switching

Allocated time: 50.00 hours.

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