Orbital and dynamical analysis of the system around HR 8799 New astrometric epochs from VLT/SPHERE and LBT/LUCI

Autor: A. Zurlo, K. Goździewski, C. Lazzoni, D. Mesa, P. Nogueira, S. Desidera, R. Gratton, F. Marzari, M. Langlois, E. Pinna, G. Chauvin, P. Delorme, J. H. Girard, J. Hagelberg, Th. Henning, M. Janson, E. Rickman, P. Kervella, H. Avenhaus, T. Bhowmik, B. Biller, A. Boccaletti, M. Bonaglia, M. Bonavita, M. Bonnefoy, F. Cantalloube, A. Cheetham, R. Claudi, V. D’Orazi, M. Feldt, R. Galicher, E. Ghose, A.-M. Lagrange, H. le Coroller, R. Ligi, M. Kasper, A.-L. Maire, F. Medard, M. Meyer, S. Peretti, C. Perrot, A. T. Puglisi, F. Rossi, B. Rothberg, T. Schmidt, E. Sissa, A. Vigan, Z. Wahhaj

Publikováno v: Astronomy & Astrophysics, 666
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2022, 666, ⟨10.1051/0004-6361/202243862⟩

Context. HR 8799 is a young planetary system composed of four planets and a double debris belt. Being the first multi-planetary system discovered with the direct imaging technique, it has been observed extensively since 1998. This wide baseline of as

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1586acd93a4e9319a6779f97a5bc00a3
https://hdl.handle.net/20.500.11850/580555

The SPHERE infrared survey for exoplanets (SHINE). I. Sample definition and target characterization

Autor: E. L. Rickman, Julien Charton, Stéphane Udry, A. Roux, S. Rochat, Alice Zurlo, O. Möller-Nilsson, Riccardo Claudi, D. Fantinel, A. Pavlov, E. Covino, Christian Soenke, M. Kasper, Valentina D'Orazi, Anne-Lise Maire, Joshua E. Schlieder, J. Pragt, Enrico Cascone, Markus Janson, Mariangela Bonavita, T. Kopytova, C. Petit, P. Martinez, Mickael Bonnefoy, A. Deboulbe, Joany Andreina Manjarres Ramos, Franz-Josef Hambsch, L. Weber, Francois Menard, Thibaut Moulin, A. Bazzon, Yves Magnard, Norbert Hubin, F. Rigal, Thiam-Guan Tan, Eric Stadler, J.-F. Sauvage, T. O. B. Schmidt, Emmanuel Hugot, L. Gluck, Th. Henning, S. Benatti, Michael Meyer, Raphaël Galicher, Anne-Marie Lagrange, M. Feldt, M. Carle, Carsten Dominik, G. Rousset, Matthias Samland, Tristan Buey, Janis Hagelberg, H. M. Schmid, Philippe Feautrier, D. Le Mignant, Arnaud Sevin, H. LeCoroller, Pierre Baudoz, J. Antichi, Arthur Vigan, Wolfgang Brandner, Massimo Turatto, Gael Chauvin, Alain Origne, R. Ligi, P. Gigan, Bernardo Salasnich, C. Lazzoni, V. De Caprio, M. Jaquet, D. Gisler, Pascal Puget, Philippe Delorme, D. Perret, T. Fusco, Dino Mesa, E. Sissa, Francois Wildi, Silvano Desidera, D. Maurel, F. Madec, Joseph C. Carson, J. M. Alcalá, E. Rigliaco, S. Messina, J. Baudrand, Anne Costille, R. G. Gratton, M. Millward, André Müller, Beth Biller, Enrico Giro, Andrea Baruffolo, Faustine Cantalloube, Jean-Luc Beuzit, Ronald Roelfsema, Marcel Carbillet, Eric Lagadec, Kjetil Dohlen, R. Asensio-Torres, Anthony Cheetham, P. Rabou, M. Llored, Maud Langlois, P. Blanchard, Anthony Boccaletti, C. Fontanive, Marcos Suarez, L. Abe

Publikováno v: Astronomy & Astrophysics, 651:A70. EDP Sciences
Astronomy and Astrophysics
Astron. Astrophys.

Large surveys with new-generation high-contrast imaging instruments are needed to derive the frequency and properties of exoplanet populations with separations from ~5 to 300 au. A careful assessment of the stellar properties is crucial for a proper

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::761bae2b0a856e7cca039ad9dd78a214
http://hdl.handle.net/20.500.12386/31639

Visible and near-infrared spectro-interferometric analysis of the edge-on Be star $\omicron$ Aquarii

Autor: Anthony Meilland, Nicolas Nardetto, Denis Mourard, D. Bednarski, A. Domiciano de Souza, R. Ligi, T. ten Brummelaar, E. S. G. de Almeida, Alex C. Carciofi, Daniel M. Faes, Ph. Stee, Bruno Mota, I. Tallon-Bosc, Nils H. Turner

Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2020, 636, pp.A110. ⟨10.1051/0004-6361/201936039⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 636, pp.A110. ⟨10.1051/0004-6361/201936039⟩

We present a detailed visible and near-IR spectro-interferometric analysis of the Be-shell star $\omicron$ Aquarii from quasi-contemporaneous CHARA/VEGA and VLTI/AMBER observations. We measured the stellar radius of $\omicron$ Aquarii as 4.0 $\pm$ 0.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14f87ecf9e5e724a6d8afbde642994be
http://arxiv.org/abs/2002.09552

From the stellar properties of HD219134 to the internal compositions of its transiting exoplanets

Autor: R. Ligi, Francesco Borsa, Ennio Poretti, Yveline Lebreton, A. Crida, I. Tallon-Bosc, Caroline Dorn, O. L. Creevey, Nicolas Nardetto, Frédéric Morand, Denis Mourard

Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2019, 631, pp.A92. ⟨10.1051/0004-6361/201936259⟩
Astronomy and Astrophysics-A&A, 2019, 631, pp.A92. ⟨10.1051/0004-6361/201936259⟩

The harvest of exoplanet discoveries has opened the area of exoplanet characterisation. But this cannot be achieved without a careful analysis of the host star parameters. The system of HD219134 hosts two transiting exoplanets and at least two additi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c51d2079b7ab4843ce642749b7dc5c72
http://arxiv.org/abs/1909.10058

Determining mass limits around HD163296 through SPHERE direct imaging data

Autor: L. Gluck, Dino Mesa, Antonio Garufi, Silvano Desidera, Anne-Lise Maire, P. Delorme, Th. Henning, Janis Hagelberg, Daniel Rouan, A. M. Lagrange, Faustine Cantalloube, Alice Zurlo, Anthony Boccaletti, R. Ligi, Anthony Cheetham, F. Madec, M. Barbieri, M. Bonnefoy, Arthur Vigan, E. Sissa, C. Lazzoni, François Ménard, G. van der Plas, T. Schmidt, G. Chauvin, Joany Andreina Manjarres Ramos, Thierry Fusco, Michael Meyer, M. Feldt, Myriam Benisty, R. G. Gratton, E. L. Rickman, Valentina D'Orazi, O. Flasseur, Maud Langlois, V. De Caprio

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2019, 488 (1), pp.37-46. ⟨10.1093/mnras/stz1662⟩
Monthly Notices of the Royal Astronomical Society, 2019, 488 (1), pp.37-46. ⟨10.1093/mnras/stz1662⟩

HD163296 is a Herbig Ae/Be star known to host a protoplanetary disk with a ringed structure. To explain the disk features, previous works proposed the presence of planets embedded into the disk. We have observed HD163296 with the near-infrared (NIR)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0770ee46624ea95018880c1a105d0683