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The nearby AGB star L2 Puppis: the birth of a planetary nebula ?
P. Kervella, M. Montargès, E. Lagadec
Adaptive optics observations in the infrared (VLT/NACO, Kervella et al. 2014) and visible (VLT/SPHERE, Kervella et al. 2015) domains revealed that the nearby AGB star L2 Pup (d=64…
The convection of close red supergiant stars observed with near-infrared interferometry
Miguel Montargès, Pierre Kervella, Guy Perrin +2
Our team has obtained observations of the photosphere of the two closest red supergiant stars Betelgeuse ( Ori) and Antares ( Sco) using near infrared interferometry. We have…
The close circumstellar environment of Betelgeuse - III. SPHERE/ZIMPOL visible polarimetry of the inner envelope and photosphere
P. Kervella, E. Lagadec, M. Montargès +7
The physical mechanism through which the outgoing material of massive red supergiants is accelerated above the escape velocity is unclear. Thanks to the transparency of its circums…
The dust disk and companion of the nearby AGB star L2 Puppis - SPHERE/ZIMPOL polarimetric imaging at visible wavelengths
P. Kervella, M. Montargès, E. Lagadec +6
The bright southern star L2 Pup is a particularly prominent asymptotic giant branch (AGB) star, as its distance of 64 pc makes it the nearest of its type. We report new adaptive op…