Searching for the near-infrared counterpart of Proxima c using multi-epoch high-contrast SPHERE data at VLT

  title={Searching for the near-infrared counterpart of Proxima c using multi-epoch high-contrast SPHERE data at VLT},
  author={Raffaele Gratton and Alice Zurlo and H. Le Coroller and Mario Damasso and Fabio Del Sordo and Maud Langlois and D. Mesa and Julien Milli and Ga{\"e}l Chauvin and Silvano Desidera and Janis Hagelberg and E. Lagadec and Arthur Vigan and Anthony Boccaletti and Micka{\"e}l Bonnefoy and Wolfgang Brandner and S. Brown and Faustine Cantalloube and Philippe Delorme and Valentina D’Orazi and Markus Feldt and Raphael Galicher and Thomas Henning and Markus Janson and Pierre Kervella and Anne-Marie Lagrange and Cecilia Lazzoni and Roxanne Ligi and A.-L. Maire and François M{\'e}nard and Michael R. Meyer and Laurent M. Mugnier and Axel Potier and Emily L. Rickman and Laetitia Rodet and C. Romero and T. O. B. Schmidt and Elena Sissa and Alessandro Sozzetti and Judit Szul{\'a}gyi and Zahed Wahhaj and Jacopo Antichi and Thierry Fusco and Eric Stadler and Marcos Su{\'a}rez and F. Wildi},
  journal={Astronomy \& Astrophysics},
Context. Proxima Centauri is the closest star to the Sun and it is known to host an Earth-like planet in its habitable zone; very recently a second candidate planet was proposed based on radial velocities. At quadrature, the expected projected separation of this new candidate is larger than 1 arcsec, making it a potentially interesting target for direct imaging. Aims. While identification of the optical counterpart of this planet is expected to be very difficult, successful identification would… 

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