Star: early-type; Optical observations; Massive binaries; DH Cep; Linear polarization
Abstract :
[en] We present preliminary results obtained from optical (B, V, R, and I) linear polarimetric observations of the O+O massive binary DH Cep. The observations were made on six nights in 2017 with the Aries IMaging POLarimeter (AIMPOL) mounted at the back of the 1.04-m Sampurnanand Telescope of ARIES. The average intrinsic linear polarization in each of the B, V, R, and I photometric bands is found to be less than 1%. The degree of polarization as well as the polarization angle appear to be orbital phase dependent. The significant polarization variability noticed towards shorter wavelengths ( i.e. B and V bands) is indicative of the asymmetric circumstellar envelope.
Research center :
STAR - Space sciences, Technologies and Astrophysics Research - ULiège
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Arora, B.
Pandey, J. C.
Joshi, A.
De Becker, Michaël ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Language :
English
Title :
Polarization study of massive binaries with the ARIES-1.04 m telescope
Publication date :
31 October 2019
Event name :
2nd BINA workshop: BINA as an expanding international collaboration
Event place :
Brussels, Belgium
Event date :
from 9-10-2018 to 12-10-2018
Audience :
International
Journal title :
Bulletin de la Société Royale des Sciences de Liège
ISSN :
0037-9565
eISSN :
1783-5720
Publisher :
Société Royale des Sciences de Liege, Liège, Belgium
