Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Neil J Cook"'
Autor:
Charles Cadieux, René Doyon, Ryan J. MacDonald, Martin Turbet, Étienne Artigau, Olivia Lim, Michael Radica, Thomas J. Fauchez, Salma Salhi, Lisa Dang, Loïc Albert, Louis-Philippe Coulombe, Nicolas B. Cowan, David Lafrenière, Alexandrine L’Heureux, Caroline Piaulet-Ghorayeb, Björn Benneke, Ryan Cloutier, Benjamin Charnay, Neil J. Cook, Marylou Fournier-Tondreau, Mykhaylo Plotnykov, Diana Valencia
Publikováno v:
The Astrophysical Journal Letters, Vol 970, Iss 1, p L2 (2024)
LHS 1140 b is the second-closest temperate transiting planet to Earth with an equilibrium temperature low enough to support surface liquid water. At 1.730 ± 0.025 R _⊕ , LHS 1140 b falls within the radius valley separating H _2 -rich mini-Neptunes
Externí odkaz:
https://doaj.org/article/f3cc15e2db7545afac422f2c3a19c8a5
Autor:
Charles Cadieux, Mykhaylo Plotnykov, René Doyon, Diana Valencia, Farbod Jahandar, Lisa Dang, Martin Turbet, Thomas J. Fauchez, Ryan Cloutier, Collin Cherubim, Étienne Artigau, Neil J. Cook, Billy Edwards, Tim Hallatt, Benjamin Charnay, François Bouchy, Romain Allart, Lucile Mignon, Frédérique Baron, Susana C. C. Barros, Björn Benneke, B. L. Canto Martins, Nicolas B. Cowan, J. R. De Medeiros, Xavier Delfosse, Elisa Delgado-Mena, Xavier Dumusque, David Ehrenreich, Yolanda G. C. Frensch, J. I. González Hernández, Nathan C. Hara, David Lafrenière, Gaspare Lo Curto, Lison Malo, Claudio Melo, Dany Mounzer, Vera Maria Passeger, Francesco Pepe, Anne-Sophie Poulin-Girard, Nuno C. Santos, Danuta Sosnowska, Alejandro Suárez Mascareño, Simon Thibault, Valentina Vaulato, Gregg A. Wade, François Wildi
Publikováno v:
The Astrophysical Journal Letters, Vol 960, Iss 1, p L3 (2024)
The two-planet transiting system LHS 1140 has been extensively observed since its discovery in 2017, notably with Spitzer, HST, TESS, and ESPRESSO, placing strong constraints on the parameters of the M4.5 host star and its small temperate exoplanets,
Externí odkaz:
https://doaj.org/article/248184ef49024f78bbde20d84a848845
Autor:
Farbod Jahandar, René Doyon, Étienne Artigau, Neil J. Cook, Charles Cadieux, David Lafrenière, Thierry Forveille, Jean-François Donati, Pascal Fouqué, Andrés Carmona, Ryan Cloutier, Paul Cristofari, Eric Gaidos, João Gomes da Silva, Lison Malo, Eder Martioli, J.-D. do Nascimento Jr., Stefan Pelletier, Thomas Vandal, Kim Venn
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 1, p 56 (2024)
Determination of fundamental parameters of stars impacts all fields of astrophysics, from galaxy evolution to constraining the internal structure of exoplanets. This paper presents a detailed spectroscopic analysis of Barnard’s star (otherwise know
Externí odkaz:
https://doaj.org/article/15d34531b0de489da905e934b0a45662
Autor:
Olivia Lim, Björn Benneke, René Doyon, Ryan J. MacDonald, Caroline Piaulet, Étienne Artigau, Louis-Philippe Coulombe, Michael Radica, Alexandrine L’Heureux, Loïc Albert, Benjamin V. Rackham, Julien de Wit, Salma Salhi, Pierre-Alexis Roy, Laura Flagg, Marylou Fournier-Tondreau, Jake Taylor, Neil J. Cook, David Lafrenière, Nicolas B. Cowan, Lisa Kaltenegger, Jason F. Rowe, Néstor Espinoza, Lisa Dang, Antoine Darveau-Bernier
Publikováno v:
The Astrophysical Journal Letters, Vol 955, Iss 1, p L22 (2023)
TRAPPIST-1 is a nearby system of seven Earth-sized, temperate, rocky exoplanets transiting a Jupiter-sized M8.5V star, ideally suited for in-depth atmospheric studies. Each TRAPPIST-1 planet has been observed in transmission both from space and from
Externí odkaz:
https://doaj.org/article/840e0e8a59d64a23a52676779aea1341
Autor:
Tianjun Gan, Charles Cadieux, Farbod Jahandar, Allona Vazan, Sharon X. Wang, Shude Mao, Jaime A. Alvarado-Montes, D. N. C. Lin, Étienne Artigau, Neil J. Cook, René Doyon, Andrew W. Mann, Keivan G. Stassun, Adam J. Burgasser, Benjamin V. Rackham, Steve B. Howell, Karen A. Collins, Khalid Barkaoui, Avi Shporer, Jerome de Leon, Luc Arnold, George R. Ricker, Roland Vanderspek, David W. Latham, Sara Seager, Joshua N. Winn, Jon M. Jenkins, Artem Burdanov, David Charbonneau, Georgina Dransfield, Akihiko Fukui, Elise Furlan, Michaël Gillon, Matthew J. Hooton, Hannah M. Lewis, Colin Littlefield, Ismael Mireles, Norio Narita, Chris W. Ormel, Samuel N. Quinn, Ramotholo Sefako, Mathilde Timmermans, Michael Vezie, Julien de Wit
Publikováno v:
The Astronomical Journal, Vol 166, Iss 4, p 165 (2023)
Observations and statistical studies have shown that giant planets are rare around M dwarfs compared with Sun-like stars. The formation mechanism of these extreme systems has remained under debate for decades. With the help of the TESS mission and gr
Externí odkaz:
https://doaj.org/article/5b7aedb64f504d839947e0d65023d7d2
Autor:
Anne Boucher, David Lafreniére, Stefan Pelletier, Antoine Darveau-Bernier, Michael Radica, Romain Allart, Étienne Artigau, Neil J Cook, Florian Debras, René Doyon, Eric Gaidos, Björn Benneke, Charles Cadieux, Andres Carmona, Ryan Cloutier, Pía Cortés-Zuleta, Nicolas B Cowan, Xavier Delfosse, Jean-François Donati, Pascal Fouqué, Thierry Forveille, Konstantin Grankin, Guillaume Hébrard, Jorge H C Martins, Eder Martioli, Adrien Masson, Sandrine Vinatier
Precise measurements of chemical abundances in planetary atmospheres are necessary to constrain the formation histories of exoplanets. A recent study of WASP-127b, a close-in puffy sub-Saturn orbiting its solar-type host star in 4.2 d, using HST and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::797acf9b06d835654546078f52b9cf17
http://arxiv.org/abs/2303.03232
http://arxiv.org/abs/2303.03232
Autor:
Michael Radica, Étienne Artigau, David Lafreniére, Charles Cadieux, Neil J Cook, René Doyon, Pedro J Amado, José A Caballero, Thomas Henning, Andreas Quirrenbach, Ansgar Reiners, Ignasi Ribas
The cross-correlation function and template matching techniques have dominated the world of precision radial velocities for many years. Recently, a new technique, named line-by-line, has been developed as an outlier resistant way to efficiently extra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9e81943caff04f5a9b867cbfd621bcb
http://hdl.handle.net/10261/286756
http://hdl.handle.net/10261/286756
Autor:
Anand Sivaramakrishnan, Peter Tuthill, James P. Lloyd, Alexandra Z. Greenbaum, Deepashri Thatte, Rachel A. Cooper, Thomas Vandal, Jens Kammerer, Joel Sanchez-Bermudez, Benjamin J. S. Pope, Dori Blakely, Loïc Albert, Neil J. Cook, Doug Johnstone, André R. Martel, Kevin Volk, Anthony Soulain, Étienne Artigau, David Lafrenière, Chris J. Willott, Sébastien Parmentier, K. E. Saavik Ford, Barry McKernan, M. Begoña Vila, Neil Rowlands, René Doyon, Mathilde Beaulieu, Louis Desdoigts, Alexander W. Fullerton, Matthew De Furio, Paul Goudfrooij, Sherie T. Holfeltz, Stephanie LaMassa, Michael Maszkiewicz, Michael R. Meyer, Marshall D. Perrin, Laurent Pueyo, Johannes Sahlmann, Sangmo Tony Sohn, Paula S. Teixeira, Sheng-hai Zheng
The James Webb Space Telescope's Near Infrared Imager and Slitless Spectrograph (JWST-NIRISS) flies a 7-hole non-redundant mask (NRM), the first such interferometer in space, operating at 3-5 \micron~wavelengths, and a bright limit of $\simeq 4$ magn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::459f9e512e0169345fc1bffb2bda588d
http://arxiv.org/abs/2210.17434
http://arxiv.org/abs/2210.17434
Autor:
Tianjun Gan, Abderahmane Soubkiou, Sharon X Wang, Zouhair Benkhaldoun, Shude Mao, Étienne Artigau, Pascal Fouqué, Luc Arnold, Steven Giacalone, Christopher A Theissen, Christian Aganze, Adam Burgasser, Karen A Collins, Avi Shporer, Khalid Barkaoui, Mourad Ghachoui, Steve B Howell, Claire Lamman, Olivier D S Demangeon, Artem Burdanov, Charles Cadieux, Jamila Chouqar, Kevin I Collins, Neil J Cook, Laetitia Delrez, Brice-Olivier Demory, René Doyon, Georgina Dransfield, Courtney D Dressing, Elsa Ducrot, Jiahao Fan, Lionel Garcia, Holden Gill, Michaël Gillon, Crystal L Gnilka, Yilen Gómez Maqueo Chew, Maximilian N Günther, Christopher E Henze, Chelsea X Huang, Emmanuel Jehin, Eric L N Jensen, Zitao Lin, Nadine Manset, James McCormac, Catriona A Murray, Prajwal Niraula, Peter P Pedersen, Francisco J Pozuelos, Didier Queloz, Benjamin V Rackham, Arjun B Savel, Nicole Schanche, Richard P Schwarz, Daniel Sebastian, Samantha Thompson, Mathilde Timmermans, Amaury H M J Triaud, Michael Vezie, Robert D Wells, Julien de Wit, George R Ricker, Roland Vanderspek, David W Latham, Sara Seager, Joshua N Winn, Jon M Jenkins
Publikováno v:
Gan, Tianjun; Soubkiou, Abderahmane; Wang, Sharon X; Benkhaldoun, Zouhair; Mao, Shude; Artigau, Étienne; Fouqué, Pascal; Arnold, Luc; Giacalone, Steven; Theissen, Christopher A; Aganze, Christian; Burgasser, Adam; Collins, Karen A; Shporer, Avi; Barkaoui, Khalid; Ghachoui, Mourad; Howell, Steve B; Lamman, Claire; Demangeon, Olivier D S; Burdanov, Artem; ... (2022). TESS discovery of a sub-Neptune orbiting a mid-M dwarf TOI-2136. Monthly notices of the Royal Astronomical Society, 514(3), pp. 4120-4139. Oxford University Press 10.1093/mnras/stac1448
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2022, 514, pp.4120-4139. ⟨10.1093/mnras/stac1448⟩
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2022, 514, pp.4120-4139. ⟨10.1093/mnras/stac1448⟩
We present the discovery of TOI-2136b, a sub-Neptune planet transiting every 7.85 days a nearby M4.5V-type star, identified through photometric measurements from the TESS mission. The host star is located $33$ pc away with a radius of $R_{\ast} = 0.3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9aab03534183f942532a5bac73686875
https://boris.unibe.ch/180957/1/stab3708.pdf
https://boris.unibe.ch/180957/1/stab3708.pdf
Autor:
Charles Cadieux, René Doyon, Mykhaylo Plotnykov, Guillaume Hébrard, Farbod Jahandar, Étienne Artigau, Diana Valencia, Neil J. Cook, Eder Martioli, Thomas Vandal, Jean-François Donati, Ryan Cloutier, Norio Narita, Akihiko Fukui, Teruyuki Hirano, François Bouchy, Nicolas B. Cowan, Erica J. Gonzales, David R. Ciardi, Keivan G. Stassun, Luc Arnold, Björn Benneke, Isabelle Boisse, Xavier Bonfils, Andrés Carmona, Pía Cortés-Zuleta, Xavier Delfosse, Thierry Forveille, Pascal Fouqué, João Gomes da Silva, Jon M. Jenkins, Flavien Kiefer, Ágnes Kóspál, David Lafrenière, Jorge H. C. Martins, Claire Moutou, J.-D. do Nascimento, Merwan Ould-Elhkim, Stefan Pelletier, Joseph D. Twicken, Luke G. Bouma, Scott Cartwright, Antoine Darveau-Bernier, Konstantin Grankin, Masahiro Ikoma, Taiki Kagetani, Kiyoe Kawauchi, Takanori Kodama, Takayuki Kotani, David W. Latham, Kristen Menou, George Ricker, Sara Seager, Motohide Tamura, Roland Vanderspek, Noriharu Watanabe
Publikováno v:
The Astronomical Journal
The Astronomical Journal, 2022, 164 (3), pp.96. ⟨10.3847/1538-3881/ac7cea⟩
The Astronomical Journal, 2022, 164 (3), pp.96. ⟨10.3847/1538-3881/ac7cea⟩
Exploring the properties of exoplanets near or inside the radius valley provides insights on the transition from the rocky super-Earths to the larger, hydrogen-rich atmosphere mini-Neptunes. Here, we report the discovery of TOI-1452 b, a transiting s