Influence of Large-Scale Perturbations in Circumstellar Disks on the Linear Polarization Parameters of UX Ori Stars

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Influence of Large-Scale Perturbations in Circumstellar Disks on the Linear Polarization Parameters of UX Ori Stars. / Шульман, С.Г.; Grinin, V. P.

In: Astronomy Letters, Vol. 45, No. 10, 01.10.2019, p. 664-676.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{c3fbd3e2bd9b4ec9bf44396e9e80069c,

title = "Influence of Large-Scale Perturbations in Circumstellar Disks on the Linear Polarization Parameters of UX Ori Stars",

abstract = "The influence of large-scale perturbations in a circumstellar disk on the linear polarization of UX Ori stars is considered. We show that the position angle of the intrinsic linear polarization of a star surrounded by a geometrically thin flared disk cannot change significantly after the passage through the photometric minimum due to perturbations in the disk. In contrast, perturbations in a disk puffed up in the dust sublimation zone can give deflections of the plane of linear polarization of the system{\textquoteright}s radiation up to 60°. This model allows the unusual changes in linear polarization observed in UX Ori and WW Vul after prolonged photometric minima to be explained.",

keywords = "circumstellar environment, Herbig Ae/Be, polarization, radiative transfer, variable stars: T Tauri",

author = "С.Г. Шульман and Grinin, {V. P.}",

note = "Publisher Copyright: {\textcopyright} 2019, Pleiades Publishing, Inc.",

year = "2019",

month = oct,

day = "1",

doi = "10.1134/S1063773719100062",

language = "English",

volume = "45",

pages = "664--676",

journal = "Astronomy Letters",

issn = "1063-7737",

publisher = "МАИК {"}Наука/Интерпериодика{"}",

number = "10",

}

RIS

TY - JOUR

T1 - Influence of Large-Scale Perturbations in Circumstellar Disks on the Linear Polarization Parameters of UX Ori Stars

AU - Шульман, С.Г.

AU - Grinin, V. P.

PY - 2019/10/1

Y1 - 2019/10/1

N2 - The influence of large-scale perturbations in a circumstellar disk on the linear polarization of UX Ori stars is considered. We show that the position angle of the intrinsic linear polarization of a star surrounded by a geometrically thin flared disk cannot change significantly after the passage through the photometric minimum due to perturbations in the disk. In contrast, perturbations in a disk puffed up in the dust sublimation zone can give deflections of the plane of linear polarization of the system’s radiation up to 60°. This model allows the unusual changes in linear polarization observed in UX Ori and WW Vul after prolonged photometric minima to be explained.

AB - The influence of large-scale perturbations in a circumstellar disk on the linear polarization of UX Ori stars is considered. We show that the position angle of the intrinsic linear polarization of a star surrounded by a geometrically thin flared disk cannot change significantly after the passage through the photometric minimum due to perturbations in the disk. In contrast, perturbations in a disk puffed up in the dust sublimation zone can give deflections of the plane of linear polarization of the system’s radiation up to 60°. This model allows the unusual changes in linear polarization observed in UX Ori and WW Vul after prolonged photometric minima to be explained.

KW - circumstellar environment

KW - Herbig Ae/Be

KW - polarization

KW - radiative transfer

KW - variable stars: T Tauri

UR - http://www.scopus.com/inward/record.url?scp=85076476146&partnerID=8YFLogxK

U2 - 10.1134/S1063773719100062

DO - 10.1134/S1063773719100062

M3 - Article

AN - SCOPUS:85076476146

VL - 45

SP - 664

EP - 676

JO - Astronomy Letters

JF - Astronomy Letters

SN - 1063-7737

IS - 10

ER -

ID: 87425255