Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004ap%26ss.292..427b&link_type=abstract
Astrophysics and Space Science, v. 292, Issue 1, p. 427-433 (2004).
Astronomy and Astrophysics
Astrophysics
2
Polarization, Stars: Pre-Main-Sequence
Scientific paper
We obtained linear polarization observations of 82 A/B-type stars in the young cluster NGC 6611, in order to probe the circumstellar material and to search for any evidence of intracluster or interstellar material that could also contribute to the polarization. We found linear polarization values that reach up to 14%. We consider the distribution of the polarization, its position angle, correlations with extinction and membership probability, polarization variability and wavelength distribution to identify the origin of the polarization toward NGC 6611. The polarization is found to be dominated by interstellar polarization, although some stars also have some circumstellar polarization. There is no evidence for intracluster dust. Rather, the dust must be located in a low density cloud toward the general line of sight to NGC 6611 and in front of it. The depth of that cloud along the line of sight increases slowly from the south east to the north west. The cloud is threaded by a very uniform magnetic field.
Bastien Pierre
Corporon Patrice
Duchene Gaspard
Manset Nadine
Menard Francois
No associations
LandOfFree
Polarization in the young cluster NGC 6611: circumstellar, interstellar, or ... both? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Polarization in the young cluster NGC 6611: circumstellar, interstellar, or ... both?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polarization in the young cluster NGC 6611: circumstellar, interstellar, or ... both? will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1857495