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Imaging low-mass pl...
Imaging low-mass planets within the habitable zone of α Centauri
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- Wagner, Kevin (author)
- University of Arizona, USA
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- Boehle, Anna (author)
- ETH Zurich, Switzerland
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- Pathak, Prashant (author)
- European Southern Observatory, Germany
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- Kasper, Markus (author)
- European Southern Observatory, Germany
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- Arsenault, Robin (author)
- European Southern Observatory, Germany
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- Jakob, Gerd (author)
- European Southern Observatory, Germany
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- Käufl, Ulli (author)
- European Southern Observatory, Germany
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- Leveratto, Serban (author)
- European Southern Observatory, Germany
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- Maire, Anne-Lise (author)
- Université de Liège, Belgium
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- Pantin, Eric (author)
- AIM, CEA, CNRS, Université Paris-Saclay, Université Paris Diderot, France
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- Siebenmorgen, Ralf (author)
- European Southern Observatory, Germany
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- Zins, Gerard (author)
- European Southern Observatory, Germany
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- Absil, Olivier (author)
- Université de Liège, Belgium
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- Ageorges, Nancy (author)
- Kampf Telescope Optics, Germany
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- Apai, Daniel (author)
- University of Arizona, USA
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- Carlotti, Alexis (author)
- Univ. Grenoble Alpes, France
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- Choquet, Elodie (author)
- Aix Marseille Univ, France
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- Delacroix, Christian (author)
- Université de Liège, Belgium
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- Dohlen, Kjetil (author)
- Aix Marseille Univ, France
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- Duhoux, Philippe (author)
- European Southern Observatory, Germany
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- Forsberg, Pontus, 1981- (author)
- Uppsala universitet,Tillämpad materialvetenskap
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- Fuenteseca, Eloy (author)
- European Southern Observatory, Germany
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- Gutruf, Sven (author)
- Kampf Telescope Optics, Germany
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- Guyon, Oliver (author)
- Subaru Telescope, USA
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- Huby, Elsa (author)
- Observatoire de Paris, France
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- Kampf, Dirk (author)
- Kampf Telescope Optics, Germany
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- Karlsson, Mikael (author)
- Uppsala universitet,Tillämpad materialvetenskap
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- Kervella, Pierre (author)
- Observatoire de Paris, France
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- Kirchbauer, Jean Paul (author)
- European Southern Observatory, Germany
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- Klupar, Peter (author)
- The Breakthrough Initiatives, USA
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- Kolb, Johann (author)
- European Southern Observatory, Germany
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- Mawet, Dimitri (author)
- California Institute of Technology, USA
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- N’Diaye, Mamadou (author)
- Université Côte d’Azur, France
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- Orban de Xivry, Gilles (author)
- Université de Liège, Belgium
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- Quanz, Sascha P. (author)
- ETH Zurich, Switzerland
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- Reutlinger, Arnd (author)
- Kampf Telescope Optics, Germany
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- Ruane, Garreth (author)
- Jet Propulsion Laboratory, California Institute of Technology, USA
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- Riquelme, Miguel (author)
- European Southern Observatory, Germany
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- Soenke, Christian (author)
- European Southern Observatory, Germany
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- Sterzik, Michael Fritz (author)
- European Southern Observatory, Germany
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- Vigan, Arthur (author)
- Aix Marseille Univ, France
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- de Zeeuw, Tim (author)
- Leiden University, Netherland and Max Planck Institute for Extraterrestrial Physics, Germany
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(creator_code:org_t)
- 2021-02-10
- 2021
- English.
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In: Nature Communications. - : Springer Nature. - 2041-1723. ; 12:1
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Abstract
Subject headings
Close
- Giant exoplanets on wide orbits have been directly imaged around young stars. If the thermal background in the mid-infrared can be mitigated, then exoplanets with lower masses can also be imaged. Here we present a ground-based mid-infrared observing approach that enables imaging low-mass temperate exoplanets around nearby stars, and in particular within the closest stellar system, alpha Centauri. Based on 75-80% of the best quality images from 100h of cumulative observations, we demonstrate sensitivity to warm sub-Neptune-sized planets throughout much of the habitable zone of alpha Centauri A. This is an order of magnitude more sensitive than state-of-the-art exoplanet imaging mass detection limits. We also discuss a possible exoplanet or exozodiacal disk detection around alpha Centauri A. However, an instrumental artifact of unknown origin cannot be ruled out. These results demonstrate the feasibility of imaging rocky habitable-zone exoplanets with current and upcoming telescopes. Imaging of low-mass exoplanets can be achieved once the thermal background in the mid-infrared (MIR) wavelengths can be mitigated. Here, the authors present a ground-based MIR observing approach enabling imaging low-mass temperate exoplanets around nearby stars.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Wagner, Kevin
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Boehle, Anna
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Pathak, Prashant
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Kasper, Markus
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Arsenault, Robin
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Jakob, Gerd
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show more...
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Käufl, Ulli
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Leveratto, Serba ...
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Maire, Anne-Lise
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Pantin, Eric
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Siebenmorgen, Ra ...
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Zins, Gerard
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Absil, Olivier
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Ageorges, Nancy
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Apai, Daniel
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Carlotti, Alexis
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Choquet, Elodie
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Delacroix, Chris ...
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Dohlen, Kjetil
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Duhoux, Philippe
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Forsberg, Pontus ...
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Fuenteseca, Eloy
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Gutruf, Sven
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Guyon, Oliver
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Huby, Elsa
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Kampf, Dirk
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Karlsson, Mikael
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Kervella, Pierre
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Kirchbauer, Jean ...
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Klupar, Peter
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Kolb, Johann
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Mawet, Dimitri
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N’Diaye, Mamadou
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Orban de Xivry, ...
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Quanz, Sascha P.
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Reutlinger, Arnd
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Ruane, Garreth
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Riquelme, Miguel
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Soenke, Christia ...
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Sterzik, Michael ...
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Vigan, Arthur
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de Zeeuw, Tim
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- NATURAL SCIENCES
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NATURAL SCIENCES
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Nature Communica ...
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Uppsala University