Some properties of the filamentary nebula at 1723 - 46

Details Some properties of the filamentary nebula at 1723 - 46 Some properties of the filamentary nebula at 1723 - 46

Oct 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mnras.210..693b&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 210, Oct. 1, 1984, p. 693-699.

Astronomy and Astrophysics

Astronomy

6

B Stars, Interstellar Gas, Nebulae, Stellar Spectra, Supernova Remnants, Absorption Spectra, Radial Velocity, Stellar Winds

Scientific paper

High resolution spectra of the interstellar Na I D2 absorption line have been obtained for seven B-type stars aligned with an extensive filamentary nebula. Very fine filaments have now been found on a high contrast print of a deep Hα+[N II] plate, making identification as a fossilized SNR probable but uncertain. The inferred age is ≅2×104yr, the distance <200 pc, the diameter <17.5 pc, but the initial energy is only ≅2×1047erg.

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