Некоторые результаты фотометрии кометарной туманности NGC 2261 / Some results of the photometry of the cometary nebula NGC 2261

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.

[img]
Preview
Text
1959-4.pdf

Download (7MB) | Preview

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

Actions (login required)

View Item View Item