Publication type: Refereed

  • Publication
    K2-60b and K2-107b. A Sub-Jovian and a Jovian Planet from the K2 Mission
    We report the characterization and independent detection of K2-60b, as well as the detection and characterization of K2-107b, two transiting hot gaseous planets...
  • Publication
    K2-99 revisited: a non-inflated warm Jupiter, and a temperate giant planet on a 522-d orbit around a subgiant
    We report new photometric and spectroscopic observations of the K2-99 planetary system. Asteroseismic analysis of the short-cadence light curve from K2's...
  • Publication
    K2-99: a subgiant hosting a transiting warm Jupiter in an eccentric orbit and a long-period companion
    We report the discovery from K2 of a transiting planet in an 18.25-d, eccentric (0.19 ± 0.04) orbit around K2-99, an 11th magnitude subgiant in Virgo. We...
  • Publication
    K4-55: A Bipolar Planetary Nebula Observed near Pole-on
    A comprehensive study of the planetary nebula K4-55 is presented. In addition to CCD narrowband images, spatially resolved low-dispersion and high-resolution...
  • Publication
    Keck HIRES spectra of the brown dwarf DENIS-P J1228.2-1547
    We report Keck high-resolution echelle spectroscopic observations of two very cool field dwarfs discovered by the near-IR photometric survey DENIS. DENIS-P...
  • Publication
    Keck HIRES Spectroscopy of Extragalactic H II Regions: C and O Abundances from Recombination Lines
    We present very deep spectrophotometry of 14 bright extragalactic H II regions belonging to spiral, irregular, and blue compact galaxies. The data for 13...
  • Publication
    Keck NIRC Observations of Planetary-Mass Candidate Members in the σ Orionis Open Cluster
    We present K-band photometry and low-resolution near-infrared spectroscopy from 1.44 to 2.45 μm of isolated planetary-mass candidate members in the σ Orionis...
  • Publication
    Keck spectroscopy and imaging of globular clusters in the lenticular galaxy NGC 524
    We have obtained Keck Low-Resolution Imaging Spectrometer imaging and spectra for 29 globular clusters associated with the lenticular galaxy NGC 524. Using the...
  • Publication
    Keck Spectroscopy of Globular Clusters in the Sombrero Galaxy
    We analyze high signal-to-noise spectra for 14 globular clusters (GCs) in the Sombrero galaxy, NGC 4594 (=M104), obtained with the LRIS spectrograph on the Keck...