Shock-Induced Polarized Hydrogen Emission Lines in omicron Ceti

Bibcode
2011ASPC..448..999L
Lèbre, A.; Fabas, N.; Gillet, D.
Bibliographical reference

16th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun. ASP Conference Series, Vol. 448, proceedings of a conference held August 28- September 2, 2010 at the University of Washington, Seattle, Washington. Edited by Christopher M. Johns-Krull, Matthew K. Browning, and Andrew A. West. San Francisco: Astronomical Society of the Pacific, 2012., p.999

Advertised on:
12
2011
Number of authors
3
IAC number of authors
0
Citations
2
Refereed citations
2
Description
We have performed a spectropolarimetric survey of the variable Mira star omicron Ceti along three pulsation cycles. We present those new data collected with the Narval instrument mounted on the Telescope Bernard Lyot (TBL) in Pic du Midi, France. We have detected time variable polarimetric signatures (on QUV Stokes spectra) associated with Balmer hydrogen emission lines supposed to be formed behind the front of a shock wave propagating throughout the stellar atmosphere. We associate the linear polarization of Balmer emission lines in Mira stars to the presence and the structure of the radiative shock wave.
Type
Non-refereed

It may interest you

  • Non-refereed
    The LiteBIRD mission to explore cosmic inflation
    LiteBIRD, the next-generation cosmic microwave background (CMB) experiment, aims for a launch in Japan's fiscal year 2032, marking a major advancement in the exploration of primordial cosmology and fundamental physics. Orbiting the Sun-Earth Lagrangian point L2, this JAXA-led strategic L-class mission will conduct a comprehensive mapping of the CMB
    Ghigna, T. et al.

    Advertised on:

    8
    2024
    Bibcode
    2024SPIE13092E..28G
    Citations
    0
  • Non-refereed
    Performance of MAGIC stellar intensity interferometer and expansion to MAGIC + CTAO-LST1 stellar intensity interferometer
    A new generation of optical intensity interferometers are emerging in recent years taking advantage of the existing infrastructure of Imaging Atmospheric Cherenkov Telescopes (IACTs). The MAGIC SII (Stellar Intensity Interferometer) in La Palma, Spain, has been operating since its first successful measurements in 2019 and its current design allows
    Cifuentes, Alejo et al.

    Advertised on:

    8
    2024
    Bibcode
    2024SPIE13095E..27C
    Citations
    0
  • Non-refereed
    GTC adaptive optics integration in telescope and first commissioning results
    The Adaptive Optics (AO) of the Gran Telescopio Canarias (GTC) is a single conjugate postfocal system, integrated in one of the Nasmyth platforms of the telescope. GTC is located in the Observatory of Roque de Los Muchachos (ORM) in the island of La Palma, Spain. GTCAO is based on a single deformable mirror (DM) with 373 actuators, conjugated to
    Reyes García-Talavera, Marcos et al.

    Advertised on:

    8
    2024
    Bibcode
    2024SPIE13097E..0ER
    Citations
    0