Ultraviolet spectropolarimetric diagnostics of hot star magnetospheres

A. ud-Doula, M. C.M. Cheung, A. David-Uraz, C. Erba, C. P. Folsom, K. Gayley, Y. Nazé, C. Neiner, V. Petit, R. Prinja, M. E. Shultz, N. Sudnik, J. S. Vink, G. A. Wade

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Several space missions and instruments for UV spectropolarimetry are in preparation, such as the proposed NASA MIDEX Polstar project, the proposed ESA M mission Arago, and the Pollux instrument on the future LUVOIR-like NASA flagship mission. In the frame of Polstar, we have studied the capabilities these observatories would offer to gain information on the magnetic and plasma properties of the magnetospheres of hot stars, helping us 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.

Original languageEnglish (US)
Article number117
JournalAstrophysics and Space Science
Issue number12
StatePublished - Dec 2022

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


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