Ultraviolet Spectropolarimetry With Polstar: Using Polstar to test Magnetospheric Mass-loss Quenching
arXiv:2207.12970 · doi:10.1007/s10509-022-04113-x
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.
20 pages, 10 figures, accepted for publication in ApSS. arXiv admin note: substantial text overlap with arXiv:2111.06434
References in corpus (23)
- A Grid of NLTE Line-Blanketed Model Atmospheres of Early B-type Stars
- The surprising magnetic topology of tauSco: fossil remnant or dynamo output?
- How mergers magnetise massive stars
- Three-dimensional mapping of the local interstellar medium with composite data
- Dynamical Simulations of Magnetically Channeled Line-Driven Stellar Winds: II. The Effects of Field-Aligned Rotation
- Dynamical Simulations of Magnetically Channeled Line-Driven Stellar Winds: III. Angular Momentum Loss and Rotational Spindown
- The MiMeS survey of magnetism in massive stars: Magnetic analysis of the O-type stars
- Magnetic massive stars as progenitors of "heavy" stellar-mass black holes
- The Magnetic Early B-type Stars I: Magnetometry and Rotation
- B fields in OB stars (BOB): Concluding the FORS2 observing campaign
- The effects of surface fossil magnetic fields on massive star evolution: I. Magnetic field evolution, mass-loss quenching and magnetic braking
- Modeling of Magneto-Rotational Stellar Evolution I. Method and first applications
- MOBSTER -- VI. The crucial influence of rotation on the radio magnetospheres of hot stars
- An `Analytic Dynamical Magnetosphere' formalism for X-ray and optical emission from slowly rotating magnetic massive stars
- The effects of surface fossil magnetic fields on massive star evolution: II. Implementation of magnetic braking in MESA and implications for the evolution of surface rotation in OB stars
- A scaling relationship for non-thermal radio emission from ordered magnetospheres: from the top of the Main Sequence to planets
- Centrifugal breakout reconnection as the electron acceleration mechanism powering the radio magnetospheres of early-type stars
- The pulsating magnetosphere of the extremely slowly rotating magnetic Cep star CMa
- The effects of surface fossil magnetic fields on massive star evolution: III. The case of Sco
- Ultraviolet Line Profiles of Slowly Rotating Massive Star Winds Using the "Analytic Dynamical Magnetosphere" Formalism
- Ultraviolet Spectropolarimetric Diagnostics of Hot Star Magnetospheres
- UV Spectropolarimetry with Polstar: Massive Star Binary Colliding Winds
- Ultraviolet Spectropolarimetry: Investigating stellar magnetic field diagnostics