Abstract
view Abstract Citations (7) References (11) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Diffuse Interstellar Bands. VII. Search for Diffuse Features in the Absorption Spectrum of Comet P/Halley Herbig, G. H. Abstract A series of CCD spectrograms was obtained of Tau-1 Ari (type B5 IV) and HD 17435 (A3) as the coma of P/Halley passed across those stars, at projected separations from the nucleus of 179 and 29 arcsec, respectively. No cometary contributions were detected at the positions of the interstellar features 5780, 5797, 6177, 6203, or 6269 A. Although the chemistry of cometary comae is believed to be very different from the interstellar, a rough argument involving cometary and interstellar CN column densities versus interstellar band strengths suggests that it was not altogether unlikely that 5780 A might have been detectable under the circumstances of the occultation of Tau-1 Ari. Publication: The Astrophysical Journal Pub Date: July 1990 DOI: 10.1086/168986 Bibcode: 1990ApJ...358..293H Keywords: Absorption Spectra; Halley'S Comet; Interstellar Matter; Line Spectra; Stellar Occultation; Charge Coupled Devices; Comet Nuclei; Spectrograms; Spectrographs; Astrophysics; COMETS; INTERSTELLAR: MATTER; LINE IDENTIFICATIONS; OCCULTATIONS full text sources ADS | Related Materials (8) Part 1: 1963ApJ...137..200H Part 2: 1966ZA.....64..512H Part 3: 1967IAUS...31...85H Part 4: 1975ApJ...196..129H Part 5: 1982ApJ...252..610H Part 6: 1988ApJ...331..999H Part 8: 1991ApJ...382..193H Part 9: 1993ApJ...407..142H
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