Publication type: Refereed

  • Publication
    An automated system to classify stellar spectra - I
    Analyses of stellar spectra often begin with the determination of a number of parameters that define a model atmosphere. This work presents a prototype for an...
  • Publication
    An automatic procedure for a determination of the effective temperature and gravity - Application to 100 O-type stars
    We have developed an automatic procedure to determine Teff and log g from the comparison of observational data with their theoretical values. After a...
  • Publication
    An early-time infrared and optical study of the Type Ia Supernova 1998bu in M96
    We present first-season infrared (IR) and optical photometry and spectroscopy of the Type Ia Supernova 1998bu in M96. We also report optical polarimetry of this...
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    An early-time infrared and optical study of the Type IA supernovae SN 1994D and 1991T
    We present early-time infrared (IR) and optical spectroscopy, and optical photometry, of the Type Ia supernova 1994D. These observations provide the most...
  • Publication
    An Earth-mass planet in a time of COVID-19: KMT-2020-BLG-0414Lb
    We report the discovery of KMT-2020-BLG-0414Lb, with a planet-to-host mass ratio q 2 = 0.9-1.2 × 10 -5 = 3-4 ⊕ at 1σ, which is the lowest mass-ratio...
  • Publication
    An Earth-sized Planet around an M5 Dwarf Star at 22 pc
    We report on the discovery of an Earth-sized transiting planet (R p = 1.015 ± 0.051 R ⊕) in a P = 4.02 day orbit around K2-415 (EPIC 211414619), an M5V star at...
  • Publication
    An Earth-sized Planet on the Verge of Tidal Disruption
    TOI-6255 b (GJ 4256) is an Earth-sized planet (1.079 ± 0.065 R ⊕) with an orbital period of only 5.7 hr. With the newly commissioned Keck Planet Finder and...
  • Publication
    An eclipsing 47 min double white dwarf binary at 400 pc
    We present the discovery of the eclipsing double white dwarf (WD) binary WDJ 022558.21-692025.38 that has an orbital period of 47.19 min. Following...
  • Publication
    An eclipsing double-line spectroscopic binary at the stellar/substellar boundary in the Upper Scorpius OB association
    Aims: We aim at constraining evolutionary models at low mass and young ages by identifying interesting transiting system members of the nearest OB association...