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Title: IMAGING COMET ISON C/2012 S1 IN THE INNER CORONA AT PERIHELION

Much anticipation and speculation were building around comet ISON, or C/2012 S1, discovered on 2012 September 21 by the International Scientific Optical Network telescope in Russia, and bound for the Sun on 2013 November 28, with a closest heliocentric approach distance of 2.7 R {sub ☉}. Here we present the first white light image of the comet's trail through the inner corona. The image was taken with a wide field Lyot-type coronagraph from the Mees Observatory on Haleakala at 19:12 UT, past its perihelion passage at 18:45 UT. The perfect match between the comet's trail captured in the inner corona and the trail that had persisted across the field of view of 2-6 R {sub ☉} of the Solar and Heliospheric Observatory Large Angle and Spectrometric Coronagraph Experiment/C2 coronagraph at 19:12 UT demonstrates that the comet survived its perihelion passage.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5]
  1. Faculty of Mechanical Engineering, Brno University of Technology, 616 69 Brno (Czech Republic)
  2. Institute for Astronomy, University of Hawaii, Honolulu 96822, Hawaii (United States)
  3. ASTELCO Systems GmbH, D-82152 Martinsried (Germany)
  4. Institute of Optics and Atomic Physics, Technische Universitaet Berlin, and Institute of Technical Physics, Berlin (Germany)
  5. Institute of Mathematics, Physics and Computer Science, Aberystwyth University, Ceredigion, Cymru SY23 3BZ (United Kingdom)
Publication Date:
OSTI Identifier:
22365946
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal Letters; Journal Volume: 784; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; COMETS; DISTANCE; IMAGES; RUSSIAN FEDERATION; SOLAR CORONA; SUN; TELESCOPES; VISIBLE RADIATION