Browsing by Subject "Halley's comet"

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Optical interferometric observations of a transient event of 1986 March 13 in the coma of Comet Halley

Prasad, D. C; Chandrasekhar, T; Desai, J. N; Ashok, N. M; Krishan, V (Indian Academy of Sciences, 1989-03)

During the recent apparition of Comet Halley in 1985-86, a transient ionic event in the form of a blob of H2O(+) emission was recorded in the coma at about 0 h UT on March 13, 1986. Observations were carried out using a ...
Polarimetry of Comet P/Halley - Properties of dust

Sen, A. K; Deshpande, M. R; Joshi, U. C; Kameswara Rao, N; Raveendran, A. V (European Southern Observatory, 1991-02)

Comet P/Halley was observed polarimetrically for seven nights in IHW and other continuum filters, during its pre- and postpreihelion passages. These polarimetric observations have been combined with the observations taken ...
Spectrophotometry of Comet P/Halley. I - Flux, column density and emission gradients within the coma in the emission bands and the continuum

Sivaraman, K. R; Babu, G. S. D; Shylaja, B. S; Rajamohan, R (European Southern Observatory, 1987-11)

The authors made spectral scans of comet P/Halley using the scanner at the Cassegrain focus (f/13) of the 102 cm reflector at Kavalur. The scans cover generally the wavelength region from 3900 to 6200 Å and are at 40 Å ...

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