- An Optical/Near-infrared Investigation of HD 100546 b with the Gemini Planet Imager and MagAO ASTRONOMICAL JOURNAL 2017; 153 (6)
- ASTROMETRIC CONFIRMATION AND PRELIMINARY ORBITAL PARAMETERS OF THE YOUNG EXOPLANET 51 ERIDANI b WITH THE GEMINI PLANET IMAGER ASTROPHYSICAL JOURNAL LETTERS 2015; 814 (1)
- DIRECT IMAGING OF AN ASYMMETRIC DEBRIS DISK IN THE HD 106906 PLANETARY SYSTEM ASTROPHYSICAL JOURNAL 2015; 814 (1)
Discovery and spectroscopy of the young jovian planet 51 Eri b with the Gemini Planet Imager.
2015; 350 (6256): 64-67
Directly detecting thermal emission from young extrasolar planets allows measurement of their atmospheric compositions and luminosities, which are influenced by their formation mechanisms. Using the Gemini Planet Imager, we discovered a planet orbiting the ~20-million-year-old star 51 Eridani at a projected separation of 13 astronomical units. Near-infrared observations show a spectrum with strong methane and water-vapor absorption. Modeling of the spectra and photometry yields a luminosity (normalized by the luminosity of the Sun) of 1.6 to 4.0 × 10(-6) and an effective temperature of 600 to 750 kelvin. For this age and luminosity, "hot-start" formation models indicate a mass twice that of Jupiter. This planet also has a sufficiently low luminosity to be consistent with the "cold-start" core-accretion process that may have formed Jupiter.
View details for DOI 10.1126/science.aac5891
View details for PubMedID 26272904
- beta PICTORIS' INNER DISK IN POLARIZED LIGHT AND NEW ORBITAL PARAMETERS FOR beta PICTORIS b ASTROPHYSICAL JOURNAL 2015; 811 (1)