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

Shultz, M. E. (author)
Univ Delaware, Dept Phys & Astron, 217 Sharp Lab, Newark, DE 19716 USA.
Casini, R. (author)
Natl Ctr Atmospher Res, High Altitude Observ, POB 3000, Boulder, CO 80307 USA.
Cheung, M. C. M. (author)
Lockheed Martin Solar & Astrophys Lab, 3251 Hanover St, Palo Alto, CA 94304 USA.
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David-Uraz, A. (author)
Howard Univ, Dept Phys & Astron, Washington, DC 20059 USA.;NASA GSFC, Ctr Res & Explorat Space Sci & Technol, Greenbelt, MD 20771 USA.;NASA GSFC, Xray Astrophys Lab, Greenbelt, MD 20771 USA.
Aleman, T. del Pino (author)
Inst Astrofis Canarias, E-38205 Tenerife, Spain.;Univ La Laguna, Dept Astrofis, E-38206 Tenerife, Spain.
Erba, C. (author)
East Tennessee State Univ, Dept Phys & Astron, Johnson City, TN 37614 USA.
Folsom, C. P. (author)
Univ Tartu, Tartu Observ, Observatooriumi 1, EE-61602 Toravere, Estonia.
Gayley, K. (author)
Univ Iowa, Dept Phys & Astron, 203 Van Allen Hall, Iowa City, IA 52242 USA.
Ignace, R. (author)
East Tennessee State Univ, Dept Phys & Astron, Johnson City, TN 37614 USA.
Keszthelyi, Z. (author)
Univ Amsterdam, Anton Pannekoek Inst Astron, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands.
Kochukhov, Oleg (author)
Uppsala universitet,Institutionen för fysik och astronomi
Naze, Y. (author)
Univ Liege, FNRS, Allee 6 Aout 19c B5C, B-4000 Liege, Belgium.
Neiner, C. (author)
Univ Paris Diderot, Sorbonne Univ, Sorbonne Paris Cite, LESIA,Paris Observ,CNRS,PSL Univ, 5 Pl Jules Janssen, F-92195 Meudon, France.
Oksala, M. (author)
Calif Lutheran Univ, Dept Phys, 60 West Olsen Rd 3700, Thousand Oaks, CA 91360 USA.
Petit, V (author)
Univ Delaware, Dept Phys & Astron, 217 Sharp Lab, Newark, DE 19716 USA.
Scowen, P. A. (author)
NASA, Goddard Space Flight Ctr, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA.
Sudnik, N. (author)
Polish Acad Sci, Nicolaus Copernicus Astron Ctr, Bartycka 18, PL-00716 Warsaw, Poland.
Ud-Doula, A. (author)
Penn State Scranton, 120 Ridge View Dr, Dunmore, PA 18512 USA.
Vink, J. S. (author)
Armagh Observ & Planetarium, Coll Hill, Armagh BT61 9DG, North Ireland.
Wade, G. A. (author)
Royal Mil Coll Canada, Dept Phys & Space Sci, Stn Forces, POB 17000, Kingston, ON K7K 7B4, Canada.;Queens Univ, Dept Phys Engn Phys & Astron, Kingston, ON K7L 3N6, Canada.
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Univ Delaware, Dept Phys & Astron, 217 Sharp Lab, Newark, DE 19716 USA Natl Ctr Atmospher Res, High Altitude Observ, POB 3000, Boulder, CO 80307 USA. (creator_code:org_t)
2022-12-14
2022
English.
In: Astrophysics and Space Science. - : Springer Nature. - 0004-640X .- 1572-946X. ; 367:12
  • Journal article (peer-reviewed)
Abstract Subject headings
Close  
  • 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.

Subject headings

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Keyword

Ultraviolet astronomy (1736)
Ultraviolet telescopes (1743)
Space telescopes (1547)
Circumstellar disks (235)
Early-type emission stars (428)
Stellar rotation (1629)
Spectropolarimetry (1973)
Polarimeters (1277)
Instruments
Polstar
UV spectropolarimetry
NASA
MIDEX

Publication and Content Type

ref (subject category)
art (subject category)

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