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Characterization of...
Characterization of the inner disk around HD 141569 A from KECK/NIRC2 L-band vortex coronagraphy
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- Mawet, Dimitri (author)
- California Institute of Technology/Jet Propulsion Laboratory (NASA), USA
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- Choquet, Élodie (author)
- Jet Propulsion Laboratory (NASA), USA
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- Absil, Olivier (author)
- Université de Liège, Belgium
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- Huby, Elsa (author)
- Université de Liège, Belgium
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- Bottom, Michael (author)
- California Institute of Technology/Jet Propulsion Laboratory (NASA), USA
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- Serabyn, Eugene (author)
- Jet Propulsion Laboratory (NASA), USA
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- Femenia, Bruno (author)
- W. M. Keck Observatory, USA
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- Lebreton, Jérémy (author)
- NASA Exoplanet Science Institute, California Institute of Technology, USA
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- Matthews, Keith (author)
- California Institute of Technology, USA
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- Gomez Gonzalez, Carlos A. (author)
- Université de Liège, Belgium
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- Wertz, Olivier (author)
- Argelander-Institut fur Astronomie, Germany
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- Carlomagno, Brunella (author)
- Université de Liège, Belgium
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- Christiaens, Valentin (author)
- Universidad de Chile, Chile
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- Defrére, Denis (author)
- University of Arizona, USA
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- Delacroix, Christian (author)
- Cornell University, USA
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- Forsberg, Pontus, 1981- (author)
- Uppsala universitet,Tillämpad materialvetenskap
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- Habraken, Serge (author)
- Université de Liège, Belgium
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- Jolivet, Aissa (author)
- Université de Liège, Belgium
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- Karlsson, Mikael (author)
- Uppsala universitet,Tillämpad materialvetenskap
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- Milli, Julien (author)
- European Southern Observatory, Chile
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- Pinte, Christophe (author)
- Univ. Grenoble Alpes, France
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- Piron, Pierre (author)
- Uppsala universitet,Tillämpad materialvetenskap
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- Reggiani, Maddalena (author)
- Université de Liège, Belgium
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- Surdej, Jean (author)
- Université de Liège, Belgium
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- Vargas Catalan, Ernesto, 1988- (author)
- Uppsala universitet,Tillämpad materialvetenskap
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(creator_code:org_t)
- 2017-01-03
- 2017
- English.
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In: Astronomical Journal. - : American Astronomical Society. - 0004-6256 .- 1538-3881. ; 153:1, s. 1-10
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https://repository.a...
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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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- HD 141569 A is a pre-main sequence B9.5 Ve star surrounded by a prominent and complex circumstellar disk, likely still in a transition stage from protoplanetary to debris disk phase. Here, we present a new image of the third inner disk component of HD 141569 A made in the L′ band (3.8 μm) during the commissioning of the vector vortex coronagraph that has recently been installed in the near-infrared imager and spectrograph NIRC2 behind the W. M. Keck Observatory Keck II adaptive optics system. We used reference point-spread function subtraction, which reveals the innermost disk component from the inner working distance of ;23 au and up to ;70 au. The spatial scale of our detection roughly corresponds to the optical and near-infrared scattered light, thermal Q, N, and 8.6 μm PAH emission reported earlier. We also see an outward progression in dust location from the L′ band to the H band (Very Large Telescope/ SPHERE image) to the visible (Hubble Space Telescope (HST)/ STIS image), which is likely indicative of dust blowout. The warm disk component is nested deep inside the two outer belts imaged by HST-NICMOS in 1999 ( at 406 and 245 au, respectively) . We fit our new L′ -band image and spectral energy distribution of HD 141569 A with the radiative transfer code MCFOST. Our best-fit models favor pure olivine grains and are consistent with the composition of the outer belts. While our image shows a putative very faint point-like clump or source embedded in the inner disk, we did not detect any true companion within the gap between the inner disk and the first outer ring, at a sensitivity of a few Jupiter masses.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- planet-disk interactions; planetary systems; planets and satellites: formation; protoplanetary disks; stars: pre-main sequence; stars: variables: T Tauri
- Herbig Ae/Be
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Mawet, Dimitri
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Choquet, Élodie
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Absil, Olivier
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Huby, Elsa
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Bottom, Michael
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Serabyn, Eugene
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Femenia, Bruno
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Lebreton, Jérémy
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Matthews, Keith
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Gomez Gonzalez, ...
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Wertz, Olivier
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Carlomagno, Brun ...
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Christiaens, Val ...
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Defrére, Denis
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Delacroix, Chris ...
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Forsberg, Pontus ...
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Habraken, Serge
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Jolivet, Aissa
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Karlsson, Mikael
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Milli, Julien
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Pinte, Christoph ...
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Piron, Pierre
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Reggiani, Maddal ...
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Surdej, Jean
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Vargas Catalan, ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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Uppsala University