Aperture Synthesis of Formaldehyde Absorption in SGR B2,

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Abstract:

Synthesis observations of the 4830 MHz formaldehyde absorption originating near Sgr B2 have been obtained with a resolution of 20 arcsec in right ascension and 40 arcsec in declination. The velocity resolution was 3.1 kms. The results suggest that there are at least two absorbing clouds near the source. One cloud has a velocity of 80 kms and is associated with only one of the two bright continuum components. Another cloud, with a velocity of 65 kms, overlies the entire continuum distribution. At a velocity of 50 kms, there is some evidence that a third cloud covers the southernmost region of the source. Author

Author(s):
Rogstad, D. H. ; Lockhart, I. A. ; Whiteoak, J. B.
Author Organization(s):
OWENS VALLEY RADIO OBSERVATORY PASADENA CALIF
Pagination:
0021

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
1974-8
Contract/Grant Number(s):
N00014-67-A-0094-0019
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*Interstellar matter, *Formaldehyde, Radio sources(Astronomy), Extraterrestrial radio waves, Absorption
Field(s)/Group(s):
Astrophysics
Keyword(s):
Sagittarius B2 radio source
Report Date:
1974 Jan 01