no code implementations • 9 Mar 2021 • R. Asensio-Torres, Th. Henning, F. Cantalloube, P. Pinilla, D. Mesa, A. Garufi, S. Jorquera, R. Gratton, G. Chauvin, J. Szulagyi, R. van Boekel, R. Dong, G. -D. Marleau, M. Benisty, M. Villenave, C. Bergez-Casalou, C. Desgrange, M. Janson, M. Keppler, M. Langlois, F. Menard, E. Rickman, T. Stolker, M. Feldt, T. Fusco, L. Gluck, A. Pavlov, J. Ramos
The detection of a wide range of substructures such as rings, cavities and spirals has become a common outcome of high spatial resolution imaging of protoplanetary disks, both in the near-infrared scattered light and in the thermal millimetre continuum emission.
Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics Solar and Stellar Astrophysics
no code implementations • 10 Feb 2021 • D. Mesa, S. Marino, M. Bonavita, C. Lazzoni, C. Fontanive, S. Perez, V. D'Orazi, S. Desidera, R. Gratton, N. Engler, T. Henning, M. Janson, Q. Kral, M. Langlois, S. Messina, J. Milli, N. Pawellek, C. Perrot, E. Rigliaco, E. Rickman, V. Squicciarini, A. Vigan, Z. Wahhaj, A. Zurlo, A. Boccaletti, M. Bonnefoy, G. Chauvin, V. De Caprio, M. Feldt, L. Gluck, J. Hagelberg, M. Keppler, A. -M. Lagrange, R. Launhardt, A. -L. Maire, M. Meyer, O. Moeller-Nilsson, A. Pavlov, M. Samland, T. Schmidt, L. Weber
We constrained the mass of possible companions responsible for the gap to 1-2 M Jup for planets located inside the gap and to less than 5 M Jup for separations down to 20 au from the host star.
Earth and Planetary Astrophysics Solar and Stellar Astrophysics
no code implementations • 21 Jan 2021 • B. A. Biller, D. Apai, M. Bonnefoy, S. Desidera, R. Gratton, M. Kasper, M. Kenworthy, A. M. Lagrange, C. Lazzoni, D. Mesa, A. Vigan, K. Wagner, J. M. Vos, A. Zurlo
To quantify our sensitivity to variability, we simulate variable lightcurves by inserting and retrieving a suite of simulated planets at similar radii from the star as HR 8799bc, but offset in position angle.
Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics
no code implementations • 13 Jan 2021 • F. Cantalloube, C. Gomez-Gonzalez, O. Absil, C. Cantero, R. Bacher, M. J. Bonse, M. Bottom, C. -H. Dahlqvist, C. Desgrange, O. Flasseur, T. Fuhrmann, Th. Henning, R. Jensen-Clem, M. Kenworthy, D. Mawet, D. Mesa, T. Meshkat, D. Mouillet, A. Mueller, E. Nasedkin, B. Pairet, S. Pierard, J. -B. Ruffio, M. Samland, J. Stone, M. Van Droogenbroeck
The Exoplanet Imaging Data Challenge is a community-wide effort meant to offer a platform for a fair and common comparison of image processing methods designed for exoplanet direct detection.
Instrumentation and Methods for Astrophysics Earth and Planetary Astrophysics
no code implementations • 10 Dec 2020 • R. Gratton, V. D'Orazi, T. A. Pacheco, A. Zurlo, S. Desidera, J. Melendez, D. Mesa, R. Claudi, M. Janson, M. Langlois, E. Rickman, M. Samland, T. Moulin, C. Soenke, E. Cascone, J. Ramos, F. Rigal, H. Avenhaus, J. L. Beuzit, B. Biller, A. Boccaletti, M. Bonavita, M. Bonnefoy, W. Brandner, G. Chauvin, M. Cudel, S. Daemgen, P. Delorme, C. Desgrange, N. Engler, M. Feldt, C. Fontanive, R. Galicher, A. Garufi, D. Gasparri, C. Ginski, J. Girard, J. Hagelberg, S. Hunziker, M. Kasper, M. Keppler, A. -M. Lagrange, J. Lannier, C. Lazzoni, H. Le Coroller, R. Ligi, M. Lombart, A. -L. Maire, M. R. Mayer, S. Mazevet, F. Menard, D. Mouillet, C. Perrot, S. Peretti, S. Petrus, A. Potier, D. Rouan, H. M. Schmid, T. O. B. Schmidt, E. Sissa, T. Stolker, G. Salter, A. Vigan, F. Wildi
The composition of the MS stars agrees fairly well with expectations from pollution by the AGB progenitors of the WDs: HD2133A has a small enrichment of n-capture elements, which is as expected for pollution by an AGB star with a mass <1. 5 Mo; CD-56 7708A is a previously unrecognized mild Ba-star, which is expected due to pollution by an AGB star with a mass in the range of 1. 5-3. 0 Mo; and HD114174 has a very moderate excess of n-capture elements, which is in agreement with the expectation for a massive AGB star to have a mass >3. 0 Mo.
Solar and Stellar Astrophysics