A further study of the molecular cloud associated with the supernova remnant G109.1-1.0

Details A further study of the molecular cloud associated with the supernova remnant G109.1-1.0 A further study of the molecular cloud associated with the supernova remnant G109.1-1.0

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...351..157t&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 351, March 1, 1990, p. 157-164.

Astronomy and Astrophysics

Astrophysics

29

Astronomical Spectroscopy, Molecular Clouds, Supernova Remnants, X Ray Sources, Absorption Spectra, Carbon Monoxide, Electron Transitions, Heao 2, Particle Acceleration, X Ray Spectra

Scientific paper

The region of the semicircular SNR G109.1-1.0 is studied on the basis of CO observations with a 45-m radio telescope and X-ray data from the archive of the Einstein Observatory. By observing the J = 1-0 transition of CO at 115 GHz, the distribution of the molecular cloud associated with the remnant is investigated in detail. The resolution of the CO mapping observations is 0.6-1.2 pc and the number of the CO spectra obtained is about 2000. The molecular ridge (CO arm), which was known to show an apparent anticorrelation with the curled x-ray jetlike feature of the remnant, is resolved into two CO filaments. The hardness of the X-ray spectrum toward the CO arm is consistent with the column densities of the two CO filaments. However, the overall appearance of the remnant will not be affected very much by the absorption, because the X-ray absorption is found to be a minor effect.

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