Astrophysical: Methods

  • Publication
    Solar surges related to UV bursts. Characterization through k-means, inversions, and density diagnostics
    Context. Surges are cool and dense ejections typically observed in chromospheric lines and closely related to other solar phenomena such as UV bursts or coronal...
  • Publication
    Solar-like Oscillations in KIC 11395018 and KIC 11234888 from 8 Months of Kepler Data
    We analyze the photometric short-cadence data obtained with the Kepler mission during the first 8 months of observations of two solar-type stars of spectral...
  • Publication
    Solar-like oscillations in red giants observed with Kepler: comparison of global oscillation parameters from different methods
    Context. The large number of stars for which uninterrupted high-precision photometric timeseries data are being collected with Kepler and CoRoT initiated the...
  • Publication
    Solar-like oscillations with low amplitude in the CoRoT target HD 181906
    Context: The F8 star HD 181906 (effective temperature ˜6300 K) was observed for 156 days by the CoRoT satellite during the first long run in the direction of...
  • Publication
    solarFLAG hare and hounds: estimation of p-mode frequencies from Sun-as-star helioseismology data
    We report on the results of the latest solarFLAG hare-and-hounds exercise, which was concerned with testing methods for extraction of frequencies of low-degree...
  • Publication
    SOPHIE velocimetry of Kepler transit candidates. XII. KOI-1257 b: a highly eccentric three-month period transiting exoplanet
    In this paper we report a new transiting warm giant planet: KOI-1257 b. It was first detected in photometry as a planet-candidate by the Kepler space telescope...
  • Publication
    SOPHISM: An End-to-end Software Instrument Simulator
    We present a software simulator for the modeling of astronomical instrumentation, which includes platform effects and software processing. It is an end-to-end...
  • Publication
    Sparse inversion of Stokes profiles. I. Two-dimensional Milne-Eddington inversions
    Context. Inversion codes are numerical tools used to infer physical properties from observations. Despite their success, the quality of current...
  • Publication
    Spatial deconvolution of spectropolarimetric data: an application to quiet Sun magnetic elements
    Context. One of the difficulties in extracting reliable information about the thermodynamical and magnetic properties of solar plasmas from spectropolarimetric...