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

Bibcode
2022Ap&SS.367..120S
DOI
10.1007/s10509-022-04113-x
Shultz, M. E.; Casini, R.; Cheung, M. C. M.; David-Uraz, A.; del Pino Alemán, T.; Erba, C.; Folsom, C. P.; Gayley, K.; Ignace, R.; Keszthelyi, Z.; Kochukhov, O.; Nazé, Y.; Neiner, C.; Oksala, M.; Petit, V.; Scowen, P. A.; Sudnik, N.; ud-Doula, A.; Vink, J. S.; Wade, G. A.
Referencia bibliográfica

Astrophysics and Space Science

Fecha de publicación:
12
2022
Revista
Astrophysics and Space Science
Número de autores
20
Número de autores del IAC
1
Número de citas
5
Número de citas referidas
5
Descripción
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.
Proyectos relacionados
Project Image
Magnetismo, Polarización y Transferencia Radiativa en Astrofísica

Los campos magnéticos están presentes en todos los plasmas astrofísicos y controlan la mayor parte de la variabilidad que se observa en el Universo a escalas temporales intermedias. Se encuentran en estrellas, a lo largo de todo el diagrama de Hertzsprung-Russell, en galaxias, e incluso quizás en el medio intergaláctico. La polarización de la luz

Tanausú del
Pino Alemán
En ejecución
Tipo
Con árbitro
Física Solar (FS)

Te puede interesar

  • Con árbitro
    The variability patterns of the TeV blazar PG 1553 + 113 from a decade of MAGIC and multiband observations

    PG 1553 + 113 is one of the few blazars with a convincing quasi-periodic emission in the gamma-ray band. The source is also a very high energy (VHE; >100 GeV) gamma-ray emitter. To better understand its properties and identify the underlying physical processes driving its variability, the MAGIC Collaboration initiated a multiyear, multiwavelength

    Abe, H. et al.

    Fecha de publicación:

    4
    2024
    Bibcode
    2024MNRAS.529.3894A
    Número de citas
    0
  • Con árbitro
    First characterization of the emission behavior of Mrk 421 from radio to very high-energy gamma rays with simultaneous X-ray polarization measurements

    Aims: We have performed the first broadband study of Mrk 421 from radio to TeV gamma rays with simultaneous measurements of the X-ray polarization from IXPE. Methods: The data were collected as part of an extensive multiwavelength campaign carried out between May and June 2022 using MAGIC, Fermi-LAT, NuSTAR, XMM-Newton, Swift, and several optical

    Abe, S. et al.

    Fecha de publicación:

    4
    2024
    Bibcode
    2024A&A...684A.127A
    Número de citas
    0
  • Con árbitro
    Effects of density and temperature variations on the metallicity of Mrk 71

    In a very recent work, [1] claim that the scenario of temperature inhomogeneities proposed by [2] ($t2$ > 0) is not able to explain the O$^{2+}$/H$^{+}$ abundance discrepancy observed between the calculations based on the optical [OIII] collisional excited lines (CELs) and the OII recombination lines (RLs) in the star forming galaxy Mrk71. In this

    Méndez-Delgado, J. Eduardo et al.

    Fecha de publicación:

    3
    2024
    Bibcode
    2024NatAs...8..275M
    Número de citas
    2