Astrophysical: Methods

  • Publication
    Solar FLAG hare and hounds: on the extraction of rotational p-mode splittings from seismic, Sun-as-a-star data
    We report on results from the first solar Fitting at Low-Angular degree Group (solar FLAG) hare-and-hounds exercise. The group is concerned with the development...
  • Publication
    Solar Hα excess during Solar Cycle 24 from full-disk filtergrams of the Chromospheric Telescope
    Context. The chromospheric Hα spectral line is a strong line in the spectrum of the Sun and other stars. In the stellar regime, this spectral line is already...
  • Publication
    Solar multiobject multiframe blind deconvolution with a spatially variant convolution neural emulator
    Context. The study of astronomical phenomena through ground-based observations is always challenged by the distorting effects of Earth's atmosphere. Traditional...
  • Publication
    Solar Site Survey for the Advanced Technology Solar Telescope. I. Analysis of the Seeing Data
    The site survey for the Advanced Technology Solar Telescope concluded recently after more than 2 years of data gathering and analysis. Six locations, including...
  • 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...