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Spatially Resolved M-band Emission from Io's Loki Patera–Fizeau Imaging at the 22.8 m LBT

Conrad, Albert and de Kleer, Katherine and Leisenring, Jarron and La Camera, Andrea and Arcidiacono, Carmelo and Bertero, Mario and Boccacci, Patrizia and Defrère, Denis and de Pater, Imke and Hinz, Philip and Hofmann, Karl-Heinz and Kürster, Martin and Rathbun, Julie and Schertl, Dieter and Skemer, Andy and Skrutskie, Michael and Spencer, John and Veillet, Christian and Weigelt, Gerd and Woodward, Charles E. (2015) Spatially Resolved M-band Emission from Io's Loki Patera–Fizeau Imaging at the 22.8 m LBT. Astronomical Journal, 149 (5). Art. No. 175. ISSN 1538-3881.

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The Large Binocular Telescope Interferometer mid-infrared camera, LMIRcam, imaged Io on the night of 2013 December 24 UT and detected strong M-band (4.8 μm) thermal emission arising from Loki Patera. The 22.8 m baseline of the Large Binocular Telescope provides an angular resolution of ~32 mas (~100 km at Io) resolving the Loki Patera emission into two distinct maxima originating from different regions within Loki's horseshoe lava lake. This observation is consistent with the presence of a high-temperature source observed in previous studies combined with an independent peak arising from cooling crust from recent resurfacing. The deconvolved images also reveal 15 other emission sites on the visible hemisphere of Io including two previously unidentified hot spots.

Item Type:Article
Related URLs:
URLURL TypeDescription
Conrad, Albert0000-0003-2872-0061
de Kleer, Katherine0000-0002-9068-3428
Leisenring, Jarron0000-0002-0834-6140
Defrère, Denis0000-0003-3499-2506
de Pater, Imke0000-0002-4278-3168
Skemer, Andy0000-0001-6098-3924
Additional Information:© 2015. The American Astronomical Society. Received 2014 December 8; accepted 2015 March 17; published 2015 April 30. The research was partially supported by the National Science Foundation, NSF Grant AST-1313485 to UC Berkeley, and by the National Science Foundation Graduate Research Fellowship under Grant DGE-1106400. Development of LMIRCam was supported by NSF grant AST-0705296. 1. The LBTI is funded by the National Aeronautics and Space Administration as part of its Exoplanet Exploration program. 2. The LBT is an international collaboration among institutions in the United States, Italy, and Germany. LBT Corporation partners are: The University of Arizona on behalf of the Arizona university system; Istituto Nazionale di Astrofisica, Italy, LBT Beteiligungsgesellschaft, Germany, representing the Max-Planck Society, the Astrophysical Institute Potsdam, and Heidelberg University; The Ohio State University; and The Research Corporation, on behalf of The University of Notre Dame, University of Minnesota, and University of Virginia.
Funding AgencyGrant Number
NSF Graduate Research FellowshipDGE-1106400
LBT Corporation PartnersUNSPECIFIED
Subject Keywords:instrumentation: adaptive optics; planets and satellites: individual (Io) ; planets and satellites: surfaces
Issue or Number:5
Record Number:CaltechAUTHORS:20190424-141802194
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Official Citation:Albert Conrad et al 2015 AJ 149 175
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:94934
Deposited By: George Porter
Deposited On:24 Apr 2019 22:39
Last Modified:03 Oct 2019 21:08

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