SPATIALLY RESOLVED SPECTROSCOPY OF THE EXOPLANET HR 8799 c

Markus Janson, C. Bergfors, M. Goto, W. Brander, D. Lafrenière

Research output: Contribution to journalArticlepeer-review

80 Citations (Scopus)

Abstract

HR 8799 is a multi-planet system detected in direct imaging, with three companions known so far. Here, we present spatially resolved Very Large Telescope/NACO 3.88-4.10 µm spectroscopy of the middle planet, HR 8799 c, which has an estimated mass of ~10 M Jup, temperature of ~1100 K, and projected separation of 38 AU. The spectrum shows some differences in the continuum from existing theoretical models, particularly longwards of 4 µm, implying that detailed cloud structure or non-equilibrium conditions may play an important role in the physics of young exoplanetary atmospheres.
Original languageEnglish
Pages (from-to)35-38
Number of pages4
JournalAstrophysical Journal Letters
Volume710
Issue number1
DOIs
Publication statusPublished - Feb 2010

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