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 • 18 Jan 2021 • S. Lacour, J. J. Wang, M. Nowak, L. Pueyo, F. Eisenhauer, A. -M. Lagrange, P. Mollière, R. Abuter, A. Amorim, R. Asensio-Torres, M. Bauböck, M. Benisty, J. P. Berger, H. Beust, S. Blunt, A. Boccaletti, A. Bohn, M. Bonnefoy, H. Bonnet, W. Brandner, F. Cantalloube, P. Caselli, B. Charnay, G. Chauvin, E. Choquet, V. Christiaens, Y. Clénet, A. Cridland, P. T. de Zeeuw, R. Dembet, J. Dexter, A. Drescher, G. Duvert, F. Gao, P. Garcia, R. Garcia Lopez, T. Gardner, E. Gendron, R. Genzel, S. Gillessen, J. H. Girard, X. Haubois, G. Heissel, T. Henning, S. Hinkley, S. Hippler, M. Horrobin, M. Houllé, Z. Hubert, A. Jiménez-Rosales, L. Jocou, J. Kammerer, M. Keppler, P. Kervella, L. Kreidberg, V. Lapeyrère, J. -B. Le Bouquin, P. Léna, D. Lutz, A. -L. Maire, A. Mérand, J. D. Monnier, D. Mouillet, A. Muller, E. Nasedkin, T. Ott, G. P. P. L. Otten, C. Paladini, T. Paumard, K. Perraut, G. Perrin, O. Pfuhl, J. Rameau, L. Rodet, G. Rodriguez-Coira, G. Rousset, J. Shangguan, T. Shimizu, J. Stadler, O. Straub, C. Straubmeier, E. Sturm, T. Stolker, E. F. van Dishoeck, A. Vigan, F. Vincent, S. D. von Fellenberg, K. Ward-Duong, F. Widmann, E. Wieprecht, E. Wiezorrek, J. Woillez
Over time, repetitive observations of the exoplanets at medium resolution ($R=500$) will provide a catalogue of K-band spectra of unprecedented quality, for a number of exoplanets.
Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics
no code implementations • 11 Jan 2021 • R. G. van Holstein, T. Stolker, R. Jensen-Clem, C. Ginski, J. Milli, J. de Boer, J. H. Girard, Z. Wahhaj, A. J. Bohn, M. A. Millar-Blanchaer, M. Benisty, M. Bonnefoy, G. Chauvin, C. Dominik, S. Hinkley, C. U. Keller, M. Keppler, M. Langlois, S. Marino, F. Ménard, C. Perrot, T. O. B. Schmidt, A. Vigan, A. Zurlo, F. Snik
The presence of these disks as well as the misalignment of the disk of DH Tau B with the disk around its primary star suggest in situ formation of the companions.
Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics Solar and Stellar 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
no code implementations • 3 Sep 2020 • G. P. P. L. Otten, A. Vigan, E. Muslimov, M. N'Diaye, E. Choquet, U. Seemann, K. Dohlen, M. Houllé, P. Cristofari, M. W. Phillips, Y. Charles, I. Baraffe, J. -L. Beuzit, A. Costille, R. Dorn, M. El Morsy, M. Kasper, M. Lopez, C. Mordasini, R. Pourcelot, A. Reiners, J. -F. Sauvage
We study the performance of the proposed HiRISE fiber coupling between the SPHERE and CRIRES+ at the VLT for spectral characterization of directly imaged planets.
Instrumentation and Methods for Astrophysics Earth and Planetary Astrophysics
1 code implementation • 28 Sep 2019 • R. G. van Holstein, J. H. Girard, J. de Boer, F. Snik, J. Milli, D. M. Stam, C. Ginski, D. Mouillet, Z. Wahhaj, H. M. Schmid, C. U. Keller, M. Langlois, K. Dohlen, A. Vigan, A. Pohl, M. Carbillet, D. Fantinel, D. Maurel, A. Origné, C. Petit, J. Ramos, F. Rigal, A. Sevin, A. Boccaletti, H. Le Coroller, C. Dominik, T. Henning, E. Lagadec, F. Ménard, M. Turatto, S. Udry, G. Chauvin, M. Feldt, J. -L. Beuzit
With our correction method we reach in all filters a total polarimetric accuracy of <0. 1% in the degree of linear polarization and an accuracy of a few degrees in angle of linear polarization.
Instrumentation and Methods for Astrophysics Earth and Planetary Astrophysics
