NDLI: First images of a possible co(+)-tail of comet p/schwassmann-wachmann 1 observed against the dust coma background

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First images of a possible co(+)-tail of comet p/schwassmann-wachmann 1 observed against the dust coma background

Content Provider	NASA Technical Reports Server (NTRS)
Author	Bonev, T. Rauer, H. Ivanova, Violeta Jockers Sr., Klaus
Copyright Year	1992
Description	Comet P/Schwassmann-Wachmann 1 was observed with the 2m-Ritchey-Cretien Telescope of the Bulgarian National Observatory, Rozhen, Bulgaria, using the CCD-camera and focal reducer of the Max-Planck-Institute for Aeronomy. Images were taken in a red continuum window and in the 2-0 A(exp 2)Pi - X(exp 2)Sigma(+) band of CO(+) located in the blue part of the spectrum. The red images reveal an extended dust coma. From a comparison of the red and blue images a dust reddening of 13.2 percent per 1000 A is derived. At 642 nm the magnitude of the comet with a square diaphragm of 4.5 arcsec is 16.6. The blue images, taken in the CO(+) band, show a significantly different brightness distribution which is interpreted as presence of a CO(+) coma and tail superimposed on the continuum. A column density of several 10(exp 10) CO(+) molecules cm(exp -2) is derived. The tail thickness of 10(exp 5) km is unexpectedly small. We estimate the CO(+) production rate to about 6 x 10(exp 26) CO(+) particles s(exp -1). This value does not support the idea that the outbursts of this comet are caused by crystallization of amorphous water ice.
File Size	288670
Page Count	4
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19930009986
Archival Resource Key	ark:/13960/t6vx58k5r
Language	English
Publisher Date	1992-01-01
Access Restriction	Open
Subject Keyword	Astrophysics Cometary Atmospheres Crystallization Ice Observatories Comet Nuclei Continuums Telescopes Comet Tails Absorption Spectra Brightness Distribution Bulgaria Schwassmann-wachmann Comet Interplanetary Dust Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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