Zobrazeno 1 - 10
of 14
pro vyhledávání: '"David LaFreniere"'
Autor:
David LaFreniere
Publikováno v:
Journal of Biosecurity, Biosafety, and Biodefense Law. 10
An analysis of the United States’ government ability to conduct experiments on the general public, with a Specific emphasis on the Common Rule.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7594435e17633b2198e4080ed95786a2
https://doi.org/10.1515/jbbbl-2019-0001
https://doi.org/10.1515/jbbbl-2019-0001
Autor:
Georgia Mraz, Antoine Darveau-Bernier, Anne Boucher, Nicolas B. Cowan, David Lafrenière, Charles Cadieux
Publikováno v:
The Astrophysical Journal Letters, Vol 975, Iss 2, p L42 (2024)
We observed the ultrahot Jupiter WASP-33b with the SpectroPolarimètre InfraRouge on the Canada–France–Hawaii Telescope. Previous observations of the dayside of WASP-33b show evidence of CO and Fe emission indicative of a thermal inversion. We ob
Externí odkaz:
https://doaj.org/article/e39482e14bf24f5f8f3bf3bd222947e7
Autor:
Caroline Piaulet-Ghorayeb, Björn Benneke, Michael Radica, Eshan Raul, Louis-Philippe Coulombe, Eva-Maria Ahrer, Daria Kubyshkina, Ward S. Howard, Joshua Krissansen-Totton, Ryan J. MacDonald, Pierre-Alexis Roy, Amy Louca, Duncan Christie, Marylou Fournier-Tondreau, Romain Allart, Yamila Miguel, Hilke E. Schlichting, Luis Welbanks, Charles Cadieux, Caroline Dorn, Thomas M. Evans-Soma, Jonathan J. Fortney, Raymond Pierrehumbert, David Lafrenière, Lorena Acuña, Thaddeus Komacek, Hamish Innes, Thomas G. Beatty, Ryan Cloutier, René Doyon, Anna Gagnebin, Cyril Gapp, Heather A. Knutson
Publikováno v:
The Astrophysical Journal Letters, Vol 974, Iss 1, p L10 (2024)
With sizable volatile envelopes but smaller radii than the solar system ice giants, sub-Neptunes have been revealed as one of the most common types of planet in the galaxy. While the spectroscopic characterization of larger sub-Neptunes (2.5–4 R _
Externí odkaz:
https://doaj.org/article/bafb1eec668c4c80b09ceaf693c9125e
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:
Michael Radica, Louis-Philippe Coulombe, Jake Taylor, Loic Albert, Romain Allart, Björn Benneke, Nicolas B. Cowan, Lisa Dang, David Lafrenière, Daniel Thorngren, Étienne Artigau, René Doyon, Laura Flagg, Doug Johnstone, Stefan Pelletier, Pierre-Alexis Roy
Publikováno v:
The Astrophysical Journal Letters, Vol 962, Iss 1, p L20 (2024)
The hot Neptune desert is one of the most sparsely populated regions of the exoplanet parameter space, and atmosphere observations of its few residents can provide insights into how such planets have managed to survive in such an inhospitable environ
Externí odkaz:
https://doaj.org/article/4f51524d075246f2b92a054ee6fccf51
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:
Adam B. Langeveld, Aleks Scholz, Koraljka Mužić, Ray Jayawardhana, Daniel Capela, Loïc Albert, René Doyon, Laura Flagg, Matthew de Furio, Doug Johnstone, David Lafrèniere, Michael Meyer
Publikováno v:
The Astronomical Journal, Vol 168, Iss 4, p 179 (2024)
The discovery and characterization of free-floating planetary-mass objects (FFPMOs) is fundamental to our understanding of star and planet formation. Here we report results from an extremely deep spectroscopic survey of the young star cluster NGC1333
Externí odkaz:
https://doaj.org/article/1a7cf3a31e2e4287bf759d54d5eb0212
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:
David Lafreniere, Rene Doyon, Daniel Nadeau, Etienne Artigau, Christian Marois, Mathilde Beaulieu
Direct exoplanet detection is limited by speckle noise in the point spread function (PSF) of the central star. This noise can be reduced by subtracting PSF images obtained simultaneously in adjacent narrow spectral bands using a multi-channel camera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e260665cb593264b68680b49c5e13f46
