Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Cook, Neil J."'
Autor:
Jahandar, Farbod, Doyon, René, Artigau, Étienne, Cook, Neil J., Cadieux, Charles, Donati, Jean-François, Cowan, Nicolas B., Cloutier, Ryan, Pelletier, Stefan, Alves-Brito, Alan, Martins, Jorge H. C., Shang, Hsien, Carmona, Andrés
We extend the methodology introduced by Jahandar et al. (2024) to determine the effective temperature and chemical abundances of 31 slowly-rotating solar neighborhood M dwarfs (M1-M5) using high-resolution spectra from CFHT/SPIRou. This group include
Externí odkaz:
http://arxiv.org/abs/2411.07377
Autor:
Artigau, Étienne, Cadieux, Charles, Cook, Neil J., Doyon, René, Dauplaise, Laurie, Arnold, Luc, Cadieux, Maya, Donati, Jean-François, Cristofari, Paul, Delfosse, Xavier, Fouqué, Pascal, Moutou, Claire, Larue, Pierre, Allart, Romain
The detection of stellar variability often relies on the measurement of selected activity indicators such as coronal emission lines and non-thermal emissions. On the flip side, the effective stellar temperature is normally seen as one of the key fund
Externí odkaz:
http://arxiv.org/abs/2409.07260
Autor:
Cadieux, Charles, Doyon, René, MacDonald, Ryan J., Turbet, Martin, Artigau, Étienne, Lim, Olivia, Radica, Michael, Fauchez, Thomas J., Salhi, Salma, Dang, Lisa, Albert, Loïc, Coulombe, Louis-Philippe, Cowan, Nicolas B., Lafrenière, David, L'Heureux, Alexandrine, Piaulet, Caroline, Benneke, Björn, Cloutier, Ryan, Charnay, Benjamin, Cook, Neil J., Fournier-Tondreau, Marylou, Plotnykov, Mykhaylo, Valencia, Diana
LHS 1140 b is the second-closest temperate transiting planet to the Earth with an equilibrium temperature low enough to support surface liquid water. At 1.730$\pm$0.025 R$_\oplus$, LHS 1140 b falls within the radius valley separating H$_2$-rich mini-
Externí odkaz:
http://arxiv.org/abs/2406.15136
NIRPS first light and early science: breaking the 1 m/s RV precision barrier at infrared wavelengths
Autor:
Artigau, Étienne, Bouchy, François, Doyon, René, Baron, Frédérique, Malo, Lison, Wildi, François, Pepe, Franceso, Cook, Neil J., Thibault, Simon, Reshetov, Vladimir, Dumusque, Xavier, Lovis, Christophe, Sosnowska, Danuta, Martins, Bruno L. Canto, De Medeiros, Jose Renan, Delfosse, Xavier, Santos, Nuno, Rebolo, Rafael, Abreu, Manuel, Allain, Guillaume, Allart, Romain, Auger, Hugues, Barros, Susana, Bazinet, Luc, Blind, Nicolas, Boisse, Isabelle, Bonfils, Xavier, Bourrier, Vincent, Bovay, Sébastien, Broeg, Christopher, Brousseau, Denis, Bruniquel, Vincent, Cabral, Alexandre, Cadieux, Charles, Carmona, Andres, Carteret, Yann, Challita, Zalpha, Chazelas, Bruno, Cloutier, Ryan, Coelho, João, Cointepas, Marion, Conod, Uriel, Cowan, Nicolas, Cristo, Eduardo, da Silva, João Gomes, Dauplaise, Laurie, Gomes, Roseane de Lima, Delgado-Mena, Elisa, Ehrenreich, David, Faria, João, Figueira, Pedro, Forveille, Thierry, Frensch, Yolanda, Gagné, Jonathan, Genest, Frédéric, Genolet, Ludovic, Hernández, Jonay I. González, Témich, Félix Gracia, Grieves, Nolan, Hernandez, Olivier, Hobson, Melissa J., Hoeijmakers, Jens, Kerley, Dan, Krishnamurthy, Vigneshwaran, Lafrenière, David, Lamontagne, Pierrot, Larue, Pierre, Leaf, Henry, Leão, Izan C., Lim, Olivia, Curto, Gaspare Lo, Martins, Allan M., Melo, Claudio, Messias, Yuri S., Mignon, Lucile, Moranta, Leslie, Mordasini, Christoph, Moulla, Khaled Al, Mounzer, Dany, L'Heureux, Alexandrine, Nari, Nicola, Nielsen, Louise, Osborn, Ares, Parc, Léna, Pasquini, Luca, Passegger, Vera M., Pelletier, Stefan, Peroux, Céline, Piaulet, Caroline, Plotnykov, Mykhaylo, Poulin-Girard, Anne-Sophie, Rasilla, José Luis, Saint-Antoine, Jonathan, Sarajlic, Mirsad, Segovia, Alex, Seidel, Julia, Ségransan, Damien, Silva, Ana Rita Costa, Srivastava, Avidaan, Stefanov, Atanas K., Mascareño, Alejandro Suárez, Sordet, Michael, Teixeira, Márcio A., Udry, Stéphane, Valencia, Diana, Vallée, Philippe, Vandal, Thomas, Vaulato, Valentina, Wade, Gregg, Wardenier, Joost P., Wehbé, Bachar, Weisserman, Drew, Wevers, Ivan, Zins, Gérard
The Near-InfraRed Planet Searcher or NIRPS is a precision radial velocity spectrograph developed through collaborative efforts among laboratories in Switzerland, Canada, Brazil, France, Portugal and Spain. NIRPS extends to the 0.98-1.8 $\mu$m domain
Externí odkaz:
http://arxiv.org/abs/2406.08304
Autor:
Initiative, TRAPPIST-1 JWST Community, de Wit, Julien, Doyon, René, Rackham, Benjamin V., Lim, Olivia, Ducrot, Elsa, Kreidberg, Laura, Benneke, Björn, Ribas, Ignasi, Berardo, David, Niraula, Prajwal, Iyer, Aishwarya, Shapiro, Alexander, Kostogryz, Nadiia, Witzke, Veronika, Gillon, Michaël, Agol, Eric, Meadows, Victoria, Burgasser, Adam J., Owen, James E., Fortney, Jonathan J., Selsis, Franck, Bello-Arufe, Aaron, de Beurs, Zoë, Bolmont, Emeline, Cowan, Nicolas, Dong, Chuanfei, Drake, Jeremy J., Garcia, Lionel, Greene, Thomas, Haworth, Thomas, Hu, Renyu, Kane, Stephen R., Kervella, Pierre, Koll, Daniel, Krissansen-Totton, Joshua, Lagage, Pierre-Olivier, Lichtenberg, Tim, Lustig-Yaeger, Jacob, Lingam, Manasvi, Turbet, Martin, Seager, Sara, Barkaoui, Khalid, Bell, Taylor J., Burdanov, Artem, Cadieux, Charles, Charnay, Benjamin, Cloutier, Ryan, Cook, Neil J., Correia, Alexandre C. M., Dang, Lisa, Daylan, Tansu, Delrez, Laetitia, Edwards, Billy, Fauchez, Thomas J., Flagg, Laura, Fraschetti, Federico, Haqq-Misra, Jacob, Huang, Ziyu, Iro, Nicolas, Jayawardhana, Ray, Jehin, Emmanuel, Jin, Meng, Kite, Edwin, Kitzmann, Daniel, Kral, Quentin, Lafrenière, David, Libert, Anne-Sophie, Liu, Beibei, Mohanty, Subhanjoy, Morris, Brett M., Murray, Catriona A., Piaulet, Caroline, Pozuelos, Francisco J., Radica, Michael, Ranjan, Sukrit, Rathcke, Alexander, Roy, Pierre-Alexis, Schwieterman, Edward W., Turner, Jake D., Triaud, Amaury, Way, Michael J.
Publikováno v:
Nature Astronomy (2024) 8, 810-818
Ultra-cool dwarf stars are abundant, long-lived, and uniquely suited to enable the atmospheric study of transiting terrestrial companions with JWST. Amongst them, the most prominent is the M8.5V star TRAPPIST-1 and its seven planets. While JWST Cycle
Externí odkaz:
http://arxiv.org/abs/2310.15895
Autor:
Cadieux, Charles, Plotnykov, Mykhaylo, Doyon, René, Valencia, Diana, Jahandar, Farbod, Dang, Lisa, Turbet, Martin, Fauchez, Thomas J., Cloutier, Ryan, Cherubim, Collin, Artigau, Étienne, Cook, Neil J., Edwards, Billy, Hallatt, Tim, Charnay, Benjamin, Bouchy, François, Allart, Romain, Mignon, Lucile, Baron, Frédérique, Barros, Susana C. C., Benneke, Björn, Martins, B. L. Canto, Cowan, Nicolas B., De Medeiros, J. R., Delfosse, Xavier, Delgado-Mena, Elisa, Dumusque, Xavier, Ehrenreich, David, Hara, Nathan C., Lafrenière, David, Frensch, Yolanda G. C., Hernández, J. I. González, Curto, Gaspare Lo, Malo, Lison, Melo, Claudio, Mounzer, Dany, Passeger, Vera Maria, Pepe, Francesco, Poulin-Girard, Anne-Sophie, Santos, Nuno C., Sosnowska, Danuta, Mascareño, Alejandro Suárez, Thibault, Simon, Vaulato, Valentina, Wade, Gregg A., Wildi, François
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 exoplanet
Externí odkaz:
http://arxiv.org/abs/2310.15490
Autor:
Jahandar, Farbod, Doyon, René, Artigau, Étienne, Cook, Neil J., Cadieux, Charles, Lafrenière, David, Forveille, Thierry, Donati, Jean-François, Fouqué, Pascal, Carmona, Andrés, Cloutier, Ryan, Cristofari, Paul, Gaidos, Eric, da Silva, João Gomes, Malo, Lison, Martioli, Eder, Nascimento Jr., J. -D. do, Pelletier, Stefan, Vandal, Thomas, Venn, Kim
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 that compares an
Externí odkaz:
http://arxiv.org/abs/2310.12125
Autor:
Lim, Olivia, Benneke, Björn, Doyon, René, MacDonald, Ryan J., Piaulet, Caroline, Artigau, Étienne, Coulombe, Louis-Philippe, Radica, Michael, L'Heureux, Alexandrine, Albert, Loïc, Rackham, Benjamin V., de Wit, Julien, Salhi, Salma, Roy, Pierre-Alexis, Flagg, Laura, Fournier-Tondreau, Marylou, Taylor, Jake, Cook, Neil J., Lafrenière, David, Cowan, Nicolas B., Kaltenegger, Lisa, Rowe, Jason F., Espinoza, Néstor, Dang, Lisa, Darveau-Bernier, Antoine
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:
http://arxiv.org/abs/2309.07047
Autor:
Gan, Tianjun, Cadieux, Charles, Jahandar, Farbod, Vazan, Allona, Wang, Sharon X., Mao, Shude, Alvarado-Montes, Jaime A., Lin, D. N. C., Artigau, Étienne, Cook, Neil J., Doyon, René, Mann, Andrew W., Stassun, Keivan G., Burgasser, Adam J., Rackham, Benjamin V., Howell, Steve B., Collins, Karen A., Barkaoui, Khalid, Shporer, Avi, de Leon, Jerome, Arnold, Luc, Ricker, George R., Vanderspek, Roland, Latham, David W., Seager, Sara, Winn, Joshua N., Jenkins, Jon M., Burdanov, Artem, Charbonneau, David, Dransfield, Georgina, Fukui, Akihiko, Furlan, Elise, Gillon, Michaël, Hooton, Matthew J., Lewis, Hannah M., Littlefield, Colin, Mireles, Ismael, Narita, Norio, Ormel, Chris W., Quinn, Samuel N., Sefako, Ramotholo, Timmermans, Mathilde, Vezie, Michael, de Wit, Julien
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 remains under debate for decades. With the help of the TESS mission and ground
Externí odkaz:
http://arxiv.org/abs/2307.07329
Autor:
Albert, Loic, Lafreniere, David, Doyon, Rene, Artigau, Etienne, Volk, Kevin, Goudfrooij, Paul, Martel, Andre R., Radica, Michael, Rowe, Jason, Espinoza, Nestor, Roy, Arpita, Filippazzo, Joseph C., Darveau-Bernier, Antoine, Talens, Geert Jan, Sivaramakrishnan, Anand, Willott, Chris J., Fullerton, Alexander W., LaMassa, Stephanie, Hutchings, John B., Rowlands, Neil, Vila, M. Begona, Zhou, Julia, Aldridge, David, Maszkiewicz, Michael, Beaulieu, Mathilde, Cook, Neil J., Piaulet, Caroline, Roy, Pierre-Alexis, Lamontagne, Pierrot, Morel, Kim, Frost, William, Salhi, Salma, Coulombe, Louis-Philippe, Benneke, Bjorn, MacDonald, Ryan J., Johnstone, Doug, Turner, Jake D., Fournier-Tondreau, Marylou, Allart, Romain, Kaltenegger, Lisa
The Near Infrared Imager and Slitless Spectrograph instrument (NIRISS) is the Canadian Space Agency (CSA) contribution to the suite of four science instruments of JWST. As one of the three NIRISS observing modes, the Single Object Slitless Spectrosco
Externí odkaz:
http://arxiv.org/abs/2306.04572