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Title:
Neutral hydrogen towards 3C 10, the remnant of Tycho's supernova
Authors:
Albinson, J. S.; Tuffs, R. J.; Swinbank, E.; Gull, S. F.
Affiliation:
AA(Mullard Radio Astronomy Observatory, Cambridge, England), AB(Mullard Radio Astronomy Observatory, Cambridge, England), AC(Mullard Radio Astronomy Observatory, Cambridge, England), AD(Mullard Radio Astronomy Observatory, Cambridge, England)
Publication:
Royal Astronomical Society, Monthly Notices (ISSN 0035-8711), vol. 219, March 15, 1986, p. 427-439. (MNRAS Homepage)
Publication Date:
03/1986
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
INTERSTELLAR GAS, SUPERNOVA REMNANTS, BRIGHTNESS TEMPERATURE, DISTANCE, FILAMENTS, H II REGIONS, OPEN CLUSTERS, RADIAL VELOCITY, STELLAR WINDS
Bibliographic Code:
1986MNRAS.219..427A

Abstract

Aperture synthesis observations of neutral hydrogen towards the remnant of Tycho's supernova (AD 1572), 3C 10, have been made with the Cambridge Half-Mile Telescope. Details of the absorption features indicate that the distance of 3C 10 is in the range of 1.7-3.7 kpc. The neutral hydrogen in a cloud in the local arm has a spin temperature of about 80 K and an optical depth of order unity. Numerous arc and filamentary structures are seen in emission; some have been analyzed in terms of expanding shells. These are found to have H I masses between 500 solar masses and 280,000 solar masses, and H I kinetic energies between 3.5 x 10 to the 40th J and 6 x 10 to the 43rd J. Stellar winds are proposed as energy sources for two of the arcs because three open clusters are near the center of curvature of one, and a bright star near the center of the other. An open cluster, three 9th mag stars and two CO clouds are seen to coincide with various minima in the H I emission. Two other CO clouds coincide with bright H I emission features, as does the small H II region S175.

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