Publications

  • Probing Uncertainties in Diagnostics of a Synthetic Chromosphere

    Effective spectroscopic diagnostics rely on the ability to convert a particular flux measurement into a physical interpretation. Knowledge of uncertainty is a central component of diagnostics. We present data from a simulated solar-like chromosphere, where we have addressed the question of whether degeneracy is a problem in mapping from a non-LTE

    Schmit, Don et al.

    Advertised on:

    5
    2021
  • Stellar clustering and orbital architecture of planetary systems

    Context. Revealing the mechanisms shaping the architecture of planetary systems is crucial for our understanding of their formation and evolution. In this context, it has been recently proposed that stellar clustering might be the key in shaping the orbital architecture of exoplanets. Aims: The main goal of this work is to explore the factors that

    Adibekyan, V. et al.

    Advertised on:

    5
    2021
  • The Mass and Age Distribution of Halo White Dwarfs in the Canada-France Imaging Survey

    We present optical spectroscopy for 18 halo white dwarfs identified using photometry from the Canada-France Imaging Survey and Pan-STARRS1 DR1 3π survey combined with astrometry from Gaia DR2. The sample contains 13 DA, 1 DZ, 2 DC, and 2 potentially exotic types of white dwarf. We fit both the spectrum and the spectral energy distribution in order

    Fantin, Nicholas J. et al.

    Advertised on:

    5
    2021
  • ARES. V. No Evidence For Molecular Absorption in the HST WFC3 Spectrum of GJ 1132 b

    We present a study on the spatially scanned spectroscopic observations of the transit of GJ 1132 b, a warm (∼500 K) super-Earth (1.13 R⊕) that was obtained with the G141 grism (1.125-1.650 μm) of the Wide Field Camera 3 (WFC3) on board the Hubble Space Telescope. We used the publicly available Iraclis pipeline to extract the planetary transmission

    Mugnai, Lorenzo V. et al.

    Advertised on:

    6
    2021
  • Joint Analysis of Multicolor Photometry: A New Approach to Constrain the Nature of Multiple-star Systems Hosting Exoplanet Candidates

    We present a new method to assess the properties of transiting planet candidates by multicolor photometry. By analyzing multicolor transit/eclipse light curves and apparent magnitudes of the target in parallel, this method attempts to identify the nature of the system and provide a quantitative constraint on the properties of unresolved companion(s

    Miyakawa, Kohei et al.

    Advertised on:

    6
    2021
  • A time-series VI study of the variable stars of the globular cluster NGC 6397

    We present a new time-series VI CCD photometry of the globular cluster NGC 6397, from which we obtained and analysed the light curves of 35 variables carefully identified in the cluster field. We assessed the membership of the variables with an astrometric analysis based on Gaia DR2 data. The cluster colour-magnitude diagram was differentially

    Ahumada, J. A. et al.

    Advertised on:

    10
    2021