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Razmadze, N.A. and რაზმაძე, ნ.ა. and Размадзе, Н.А. (1959) Некоторые результаты фотометрии кометарной туманности NGC 2261 / Some results of the photometry of the cometary nebula NGC 2261. აბასთუმნის ასტროფიზიკური ობსერვატორიის ბიულეტენი / Bulletin of the Abastumani Astrophysical Observatory (24). pp. 25-29.
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Abstract
During tho spring of 1957 a series of photos of tho known Hubble comet-like variable nebula .NGC2261 was taken with 70-cმ meniscus telescope of the Abastnmani observatory. The photos were obtained in violet and yellow light and through a polaroid. The most reliable negatives were treated photometrically. 4 crosssections of the NGC2261 were made with a self-recording microphotometer in the East-West direction at different distances from tho top of tho nebula. Following conclusions were made: 1. The nebula is characterized by a complicated structure of luminous matter; the luminosity in yellow light being more amorphous than in violet. 2. A. violet light is being observed in the middle part of the axial region of this comet-like nebula. 3. The polarization in NGC2261 is mainly radial with respect to tho head of the nebula. Its average value is equal to 19%. The maximum rate of polarization (sometimes it is equal to 60%) is observed in the east stream of the nebula. This fact is illustrated by the fig. 4. 4. There is no correlation between colour and polarisation of the nebula. September, 1958.
| Item Type: | Article |
|---|---|
| Subjects: | Q Science > QB Astronomy |
| Divisions: | Institutes > Evgeny Kharadze Abastumani National Astrophysical Observatory |
| Depositing User: | თამარ ჭაღიაშვილი |
| Date Deposited: | 03 Jun 2018 09:56 |
| Last Modified: | 03 Jun 2018 09:56 |
| URI: | http://eprints.iliauni.edu.ge/id/eprint/8083 |
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