Article (Scientific journals)
On the structure of the nebula M 2-9
Kohoutek, L.; Surdej, Jean
1980In Astronomy and Astrophysics, 85, p. 161-167
Peer Reviewed verified by ORBi
 

Files


Full Text
Kohoutek_A&A_1980_85_161_167.pdf
Publisher postprint (1.56 MB)
Download

The authors thank EDP Sciences for their deposit authorization


All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
PLANETARY NEBULAE; STELLAR STRUCTURE; ASTROMETRY; MORPHOLOGY; ASTRONOMICAL PHOTOGRAPHY
Abstract :
[en] The structure of planetary nebula M 2-9 has been investigated on direct plates taken with the ESO 3.6 m-telescope in 1977-78. Compared with the photographs from 1952, 1971, and 1973 the main condensations in the wings show a remarkable shift approximately in the W-E direction which can be explained as a rotating motion about the nebular axis of symmetry (N-S axis). The angular velocity seems to increase with the distance from the core. Two faint loops extending to about 1 arcmin on each side of the core and lying on the nebular axis were discovered. The very elongated shape of the nebula indicates the presence of an anisotropic velocity field in it.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Kohoutek, L.;  Hamburger Sternwarte, Hamburg, West Germany
Surdej, Jean  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Language :
English
Title :
On the structure of the nebula M 2-9
Publication date :
1980
Journal title :
Astronomy and Astrophysics
ISSN :
0004-6361
eISSN :
1432-0746
Publisher :
EDP Sciences, Les Ulis, France
Volume :
85
Pages :
161-167
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 02 August 2009

Statistics


Number of views
44 (2 by ULiège)
Number of downloads
29 (0 by ULiège)

Bibliography


Similar publications



Contact ORBi