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Title:
Sub-A.U. Structure In Galactic HI
Authors:
Minter, A. H.; Balser, D. S.; Kartaltepe, J. S.
Affiliation:
AA(NRAO), AB(NRAO), AC(Colgate)
Publication:
American Astronomical Society, 201st AAS Meeting, #112.25; Bulletin of the American Astronomical Society, Vol. 34, p.1283
Publication Date:
12/2002
Origin:
AAS
Bibliographic Code:
2002AAS...20111225M

Abstract

We have observed fluctuations in the neutral hydrogen (HI) absorption measured towards the pulsar PSR B0329+54 using the 100 meter Green Bank radio telescope (GBT). Due to the sensitivity and sky coverage of the GBT, the brightness of PSR B0329+54, and the large proper motion of this pulsar, it is feasible to measure fluctuations in the HI absorption on time scales of less than one day. We report on initial results from these observations which indicate that structures in the cold (< 100 K) HI exist with size scales less than 1 A.U.
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