Ultraviolet spectropolarimetry with Polstar: using Polstar to test magnetospheric mass-loss quenching

M. E. Shultz; R. Casini; M. C. M. Cheung; A. David-Uraz; T. del Pino Aleman; C. Erba; C. P. Folsom; K. Gayley; R. Ignace; Z. Keszthelyi; Oleg Kochukhov; Y. Naze; C. Neiner; M. Oksala; V Petit; P. A. Scowen; N. Sudnik; A. Ud-Doula; J. S. Vink; G. A. Wade

doi:10.1007/s10509-022-04113-x

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Ultraviolet spectropolarimetry with Polstar: using Polstar to test magnetospheric mass-loss quenching

Journal article

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Ultraviolet spectropolarimetry with Polstar: using Polstar to test magnetospheric mass-loss quenching

M. E. Shultz, R. Casini, M. C. M. Cheung, A. David-Uraz, T. del Pino Aleman, C. Erba, C. P. Folsom, K. Gayley, R. Ignace, Z. Keszthelyi, …

Astrophysics and space science, Vol.367(12), p.120

12/01/2022

DOI: 10.1007/s10509-022-04113-x

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Abstract

Polstar is a proposed NASA MIDEX space telescope that will provide high-resolution, simultaneous full-Stokes spectropolarimetry in the far ultraviolet, together with low-resolution linear polarimetry in the near ultraviolet. This observatory offers unprecedented capabilities to obtain unique information on the magnetic and plasma properties of the magnetospheres of hot stars. We describe an observing program making use of the known population of magnetic hot stars to test the fundamental hypothesis that magnetospheres should act to rapidly drain angular momentum, thereby spinning the star down, whilst simultaneously reducing the net mass-loss rate. Both effects are expected to lead to dramatic differences in the evolution of magnetic vs. non-magnetic stars.

Astronomi, astrofysik och kosmologi

Astronomy, Astrophysics and Cosmology

Circumstellar disks

Early-type emission stars

Fysik

Instruments

MIDEX

NASA

Natural Sciences

Naturvetenskap

Physical Sciences

Polarimeters

Polstar

Space telescopes

Spectropolarimetry

Stellar rotation

Ultraviolet astronomy

Ultraviolet telescopes

UV spectropolarimetry

Details

Title: Subtitle: Ultraviolet spectropolarimetry with Polstar: using Polstar to test magnetospheric mass-loss quenching
Creators: M. E. Shultz - University of Delaware
R. Casini - NSF NCAR High Altitude Observatory
M. C. M. Cheung - Lockheed Martin (United States)
A. David-Uraz - Astrophysics Science Division
T. del Pino Aleman
C. Erba - East Tennessee State University
C. P. Folsom - Tartu Observatory
K. Gayley - University of Iowa
R. Ignace - East Tennessee State University
Z. Keszthelyi - The Netherlands Cancer Institute
Oleg Kochukhov - Uppsala University
Y. Naze - University of Liège
C. Neiner - Délégation Paris 7
M. Oksala - California Lutheran University
V Petit - University of Delaware
P. A. Scowen - Goddard Space Flight Center
N. Sudnik - Nicolaus Copernicus Astronomical Center
A. Ud-Doula - University of Scranton
J. S. Vink - Armagh Observatory & Planetarium
G. A. Wade - Royal Military College of Canada
Resource Type: Journal article
Publication Details: Astrophysics and space science, Vol.367(12), p.120
DOI: 10.1007/s10509-022-04113-x
ISSN: 0004-640X
eISSN: 1572-946X
Grant note: DOI: 10.13039/100000104, name: National Aeronautics and Space Administration, award: TM1-22001B, GO2-23003X, 80GSFC21M0002, HST-AR-15794.001-A; DOI: 10.13039/100000001, name: National Science Foundation, award: AST-2009412
Language: English
Date published: 12/01/2022
Academic Unit: Physics and Astronomy
Record Identifier: 9984428675302771

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