Fabry-Perot ground-based observations of comet Halley

Scherb, F.; Roesler, F. L.; Magee, Kara; Harlander, John M.; Reynolds, R. J.

doi:10.1016/0273-1177(85)90096-1

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1988

1993

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Cited by 12 publications

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“…1. Outflow velocity components of F. Scherb et al (1985) 14.2±3.5 km/s and 2.6±1.5 km/s 2. Flux varies as ^ R^* 1 ^ (fig.…”

Section: Hydrogen Alphamentioning

confidence: 91%

High-resolution studies of forbidden O I and NH2 line emissions at 6300 A in Halley's comet

Prasad

Chandrasekhar

Desai

et al. 1988

PASP

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Comet Halley was observed with a high-resolution Fabry-Perot spectrometer (X78X. ~4 X 10 4 ) in the wavelengths [O i] and NH 2 (0-8-0) in the neighborhood of 6300 Â during 1986 April 13-15. The [O i] line and NH 2 rotational lines were spectrally well separated by the interferometer. The profile analysis shows the profiles of [O i] and NH 2 to be symmetric with the linewidths ~ 3.5-3 km s' 1 . The ratio (NH 2 Á.6298.6 (2 12 -2 02 ))/[O i] is ~ 0.5. Observations were also attempted in Ha, but no clear signal was detectable above the noise within the field of view (50") of the instrument. Upper limits consistent with other results are derived for Ha. This paper discusses the observations briefly followed by details of the analysis and the results.

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“…1. Outflow velocity components of F. Scherb et al (1985) 14.2±3.5 km/s and 2.6±1.5 km/s 2. Flux varies as ^ R^* 1 ^ (fig.…”

Section: Hydrogen Alphamentioning

confidence: 91%