Advanced search
Start date
Betweenand
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

THE ALIGNMENT OF THE POLARIZATION OF HERBIG Ae/Be STARS WITH THE INTERSTELLAR MAGNETIC FIELD

Full text
Author(s):
Rodrigues, Claudia V. [1] ; Sartori, Marilia J. [2] ; Gregorio-Hetem, Jane [3] ; Magalhaes, A. Mario [3]
Total Authors: 4
Affiliation:
[1] Inst Nacl Pesquisas Espaciais MCT, BR-12227010 Sao Jose Dos Campos, SP - Brazil
[2] Lab Nacl Astrofis MCT, BR-37504364 Itajuba, MG - Brazil
[3] Un Sao Paulo, Inst Astron Goefis & Ciencias Atmosfericas, BR-05508900 Sao Paulo - Brazil
Total Affiliations: 3
Document type: Journal article
Source: ASTROPHYSICAL JOURNAL; v. 698, n. 2, p. 2031-2035, JUN 20 2009.
Web of Science Citations: 20
Abstract

We present a study of the correlation between the direction of the symmetry axis of the circumstellar material around intermediate mass young stellar objects and that of the interstellar magnetic field. We use CCD polarimetric data on 100 Herbig Ae/Be stars. A large number of them show intrinsic polarization, which indicates that their circumstellar envelopes are not spherical. The interstellar magnetic field direction is estimated from the polarization of field stars. There is an alignment between the position angle of the Herbig Ae/Be star polarization and that of the field stars for the most polarized objects. This may be an evidence that the ambient interstellar magnetic field plays a role in shaping the circumstellar material around young stars of intermediate mass and/or in defining their angular momentum axis. (AU)

FAPESP's process: 05/00397-1 - Chemical evolution and galactic and extragalactic stellar populations by spectroscopy and imaging
Grantee:Beatriz Leonor Silveira Barbuy
Support type: Research Projects - Thematic Grants
FAPESP's process: 01/12589-1 - Stars, the interstellar medium and their interrelationships
Grantee:Antônio Mário Magalhães
Support type: Research Projects - Thematic Grants