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DETECTION OF SHARP ...
DETECTION OF SHARP SYMMETRIC FEATURES IN THE CIRCUMBINARY DISK AROUND AK Sco
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- Janson, Markus (author)
- Stockholms universitet,Institutionen för astronomi
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Thalmann, Christian (author)
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Boccaletti, Anthony (author)
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Maire, Anne-Lise (author)
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Zurlo, Alice (author)
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Marzari, Francesco (author)
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Meyer, Michael R. (author)
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Carson, Joseph C. (author)
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Augereau, Jean-Charles (author)
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Garufi, Antonio (author)
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Henning, Thomas (author)
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Desidera, Silvano (author)
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- Asensio-Torres, Ruben (author)
- Stockholms universitet,Institutionen för astronomi
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Pohl, Adriana (author)
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(creator_code:org_t)
- 2016
- 2016
- English.
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In: Astrophysical Journal Letters. - 2041-8205 .- 2041-8213. ; 816:1
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Subject headings
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- The Search for Planets Orbiting Two Stars survey aims to study the formation and distribution of planets in binary systems by detecting and characterizing circumbinary planets and their formation environments through direct imaging. With the SPHERE Extreme Adaptive Optics instrument, a good contrast can be achieved even at small (< 300 mas) separations from bright stars, which enables studies of planets and disks in a separation range that was previously inaccessible. Here, we report the discovery of resolved scattered light emission from the circumbinary disk around the well-studied young double star AK. Sco, at projected separations in the similar to 13-40 AU range. The sharp morphology of the imaged feature is surprising, given the smooth appearance of the disk in its spectral energy distribution. We show that the observed morphology can be represented either as a highly eccentric ring around AK Sco, or as two separate spiral arms in the disk, wound in opposite directions. The relative merits of these interpretations are discussed, as well as whether these features may have been caused by one or several circumbinary planets interacting with the disk.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- binaries: general
- planet-disk interactions
- planetary systems
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Janson, Markus
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Thalmann, Christ ...
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Boccaletti, Anth ...
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Maire, Anne-Lise
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Zurlo, Alice
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Marzari, Frances ...
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show more...
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Meyer, Michael R ...
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Carson, Joseph C ...
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Augereau, Jean-C ...
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Garufi, Antonio
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Henning, Thomas
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Desidera, Silvan ...
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Asensio-Torres, ...
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Pohl, Adriana
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show less...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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Astrophysical Jo ...
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Stockholm University