Observation and analysis of chromospheric magnetic fields .

Bibcode
2010MmSAI..81..716D
de la Cruz Rodríguez, J.; Socas-Navarro, H.; van Noort, M.; Rouppe van der Voort, L.
Bibliographical reference

Memorie della Societa Astronomica Italiana, v.81, p.716 (2010)

Advertised on:
2010
Number of authors
4
IAC number of authors
1
Citations
7
Refereed citations
6
Description
The solar chromosphere is a vigorously dynamic region of the sun, where waves and magnetic fields play an important role. To improve chromospheric diagnostics, we present new observations in Ca II 8542 carried out with the SST/CRISP on La Palma, working in full-Stokes mode. We measured Stokes line profiles in active regions. The line profiles observed close to the solar limb show signals in all four Stokes parameters, while profiles observed close to disk center only show signals above the noise level in Stokes I and V. We used the NLTE inversion code 'NICOLE' to derive atmospheric parameters in umbral flashes present in a small round sunspot without penumbra.
Type
Non-refereed
Techniques
Magnetic fields

It may interest you

  • Non-refereed
    NIRPS near-infrared spectrograph: AITV phase at ESO3.6m/La Silla
    NIRPS is a fiber-fed AO nIR spectrograph working simultaneously with HARPS at the La Silla-ESO 3.6m telescope. The cryogenic spectrograph operating at 75K employs a cross-dispersed echelle grating (R4), covering a wavelength range of 0.98-1.80 microns in a single image using a Teledyne Hawaii-4RG infrared detector. In early 2022, the NIRPS
    Malo, Lison et al.

    Advertised on:

    7
    2024
    Bibcode
    2024SPIE13096E..46M
    Citations
    0
  • Non-refereed
    Transport, handling, and integration of the adaptive optics system for GTC: from the laboratory to the telescope
    The Gran Telescopio de Canarias Adaptive Optics System (GTCAO) is currently in its commissioning phase at Roque de Los Muchachos Observatory (ORM). The GTCAO is a single-conjugated post-focal system equipped with a Shack- Hartmann Wavefront Sensor (WFS) and a Deformable Mirror (DM) conjugated to the pupil, achieving a Strehl Ratio of 65% in the K
    González Carretero, Eduardo D. et al.

    Advertised on:

    7
    2024
    Bibcode
    2024SPIE13096E..96G
    Citations
    0
  • Non-refereed
    Euclid commissioning results: the near infrared spectrometer and photometer (NISP) signal detection chain
    Euclid, the M2 mission of the ESA's Cosmic Vision 2015-2025 program, aims to explore the Dark Universe by conducting a survey of approximately 14 000 deg 2 and creating a 3D map of the observable Universe of around 1.5 billion galaxies up to redshift z ∼ 2. This mission uses two main cosmological probes: weak gravitational lensing and galaxy
    Cogato, F. et al.

    Advertised on:

    8
    2024
    Bibcode
    2024SPIE13092E..3GC
    Citations
    0