Accreting protoplanets in the LkCa 15 transition disk

S. Sallum (), K. B. Follette, J. A. Eisner, L. M. Close, P. Hinz, K. Kratter, J. Males, A. Skemer, B. Macintosh, P. Tuthill, V. Bailey, D. Defrère, K. Morzinski, T. Rodigas, E. Spalding, A. Vaz and A. J. Weinberger
Additional contact information
S. Sallum: University of Arizona
K. B. Follette: University of Arizona
J. A. Eisner: University of Arizona
L. M. Close: University of Arizona
P. Hinz: University of Arizona
K. Kratter: University of Arizona
J. Males: University of Arizona
A. Skemer: University of Arizona
B. Macintosh: Kavli Institute for Particle Astrophysics and Cosmology, Stanford University
P. Tuthill: School of Physics, University of Sydney
V. Bailey: University of Arizona
D. Defrère: University of Arizona
K. Morzinski: University of Arizona
T. Rodigas: Carnegie Institution for Science
E. Spalding: University of Arizona
A. Vaz: University of Arizona
A. J. Weinberger: Carnegie Institution for Science

Nature, 2015, vol. 527, issue 7578, 342-344

Abstract: Transition disks are natural laboratories for the study of planet formation, with inner clearings explained by the influence of accreting planets, but attempts to observe directly accretion onto protoplanets have proven unsuccessful so far; here the authors detect infrared emission from multiple companions of the LkCa 15 system and Ha emission from the innermost (LkCa 15 b), showing hot (~10,000 K) gas falling deep into the potential well of an accreting protoplanet.

Date: 2015
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DOI: 10.1038/nature15761

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