Zobrazeno 1 - 10
of 189
pro vyhledávání: '"Wit, Julien"'
Autor:
Pedersen, Peter P., Queloz, Didier, Garcia, Lionel, Schacke, Yannick, Delrez, Laetitia, Demory, Brice-Olivier, Ducrot, Elsa, Dransfield, Georgina, Gillon, Michael, Hooton, Matthew J., Janó-Muñoz, Clàudia, Jehin, Emmanuël, Sebastian, Daniel, Timmermans, Mathilde, Thompson, Samantha, Triaud, Amaury H. M. J., de Wit, Julien, Zúñiga-Fernández, Sebastián
Publikováno v:
Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 130963X (2024), Paper 13096-149
We present the photometric performance of SPIRIT, a ground-based near-infrared InGaAs CMOS-based instrument (1280 by 1024 pixels, 12 micron pitch), using on-sky results from the SPECULOOS-Southern Observatory during 2022 - 2023. SPIRIT was specifical
Externí odkaz:
http://arxiv.org/abs/2410.22140
Autor:
Keers, Rosa E., Shapiro, Alexander I., Kostogryz, Nadiia M., Glidden, Ana, Niraula, Prajwal, Rackham, Benjamin V., Solanki, Sara Seager Sami K., Unruh, Yvonne C., Vasilyev, Valeriy, de Wit, Julien
Stellar limb darkening must be properly accounted for to accurately determine the radii of exoplanets at various wavelengths. The standard approach to address limb darkening involves either using laws with coefficients from modelled stellar spectra o
Externí odkaz:
http://arxiv.org/abs/2410.18617
Autor:
Jacobs, Bob, Désert, Jean-Michel, Lewis, Nikole, Challener, Ryan C., Mayorga, L. C., de Beurs, Zoë, Parmentier, Vivien, Stevenson, Kevin B., de Wit, Julien, Barat, Saugata, Fortney, Jonathan, Kataria, Tiffany, Line, Michael
The extreme environments of transiting close-in exoplanets in highly-eccentric orbits are ideal for testing exo-climate physics. Spectroscopically resolved phase curves not only allow for the characterization of their thermal response to irradiation
Externí odkaz:
http://arxiv.org/abs/2410.11643
Autor:
Wiesenfeld, Laurent, Niraula, Prajwal, de Wit, Julien, Jaïdane, Nejmeddine, Gordon, Iouli E., Hargreaves, Robert J.
Light-matter interactions lie at the heart of our exploration of exoplanetary atmospheres. Interpreting data obtained by remote sensing is enabled by meticulous, time- and resource-consuming work aiming at deepening our understanding of such interact
Externí odkaz:
http://arxiv.org/abs/2409.04439
Autor:
Gillon, Michaël, Pedersen, Peter P., Rackham, Benjamin V., Dransfield, Georgina, Ducrot, Elsa, Barkaoui, Khalid, Burdanov, Artem Y., Schroffenegger, Urs, Chew, Yilen Gómez Maqueo, Lederer, Susan M., Alonso, Roi, Burgasser, Adam J., Howell, Steve B., Narita, Norio, de Wit, Julien, Demory, Brice-Olivier, Queloz, Didier, Triaud, Amaury H. M. J., Delrez, Laetitia, Jehin, Emmanuël, Hooton, Matthew J., Garcia, Lionel J., Muñoz, Clàudia Jano, Murray, Catriona A., Pozuelos, Francisco J., Sebastian, Daniel, Timmermans, Mathilde, Thompson, Samantha J., Aceituno, Jesús, Aganze, Christian, Amado, Pedro J., Baycroft, Thomas, Benkhaldoun, Zouhair, Berardo, David, Bolmont, Emeline, Clark, Catherine A., Davis, Yasmin T., Davoudi, Fatemeh, de Beurs, Zoë L., de Leon, Jerome P., Ikoma, Masahiro, Ikuta, Kai, Isogai, Keisuke, Fukuda, Izuru, Fukui, Akihiko, Gerasimov, Roman, Ghachoui, Mourad, Günther, Maximilian N., Hasler, Samantha, Hayashi, Yuya, Heng, Kevin, Hu, Renyu, Kagetani, Taiki, Kawai, Yugo, Kawauchi, Kiyoe, Kitzmann, Daniel, Koll, Daniel D. B., Lendl, Monika, Livingston, John H., Lyu, Xintong, Valdés, Erik A. Meier, Mori, Mayuko, McCormac, James J., Murgas, Felipe, Niraula, Prajwal, Pallé, Enric, Plauchu-Frayn, Ilse, Rebolo, Rafael, Sabin, Laurence, Schackey, Yannick, Schanche, Nicole, Selsis, Franck, Sota, Alfredo, Stalport, Manu, Standing, Matthew R., Stassun, Keivan G., Tamura, Motohide, Theissen, Christopher A., Turbet, Martin, Van Grootel, Valérie, Varas, Roberto, Watanabe, Noriharu, Lang, Francis Zong
Located at the bottom of the main sequence, ultracool dwarf stars are widespread in the solar neighbourhood. Nevertheless, their extremely low luminosity has left their planetary population largely unexplored, and only one of them, TRAPPIST-1, has so
Externí odkaz:
http://arxiv.org/abs/2406.00794
Publikováno v:
Nat. Astron. (2024)
Hot Jupiters are expected to form far from their host star and move toward close-in, circular orbits via a smooth, monotonic decay due to mild and constant tidal dissipation. Yet, three systems have recently been found exhibiting planet-induced stell
Externí odkaz:
http://arxiv.org/abs/2403.08014
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:
Triaud, Amaury H. M. J., de Wit, Julien, Klein, Frieder, Turbet, Martin, Rackham, Benjamin V., Niraula, Prajwal, Glidden, Ana, Jagoutz, Oliver E., Pec, Matej, Petkowski, Janusz J., Seager, Sara, Selsis, Franck
Publikováno v:
Nat Astron (2023)
The conventional observables to identify a habitable or inhabited environment in exoplanets, such as an ocean glint or abundant atmospheric O$_2$, will be challenging to detect with present or upcoming observatories. Here we suggest a new signature.
Externí odkaz:
http://arxiv.org/abs/2310.14987
Autor:
Hasler, Samantha, Burdanov, Artem, de Wit, Julien, Dransfield, Georgina, Abe, Lyu, Agabi, A., Bendjoya, Philippe, Crouzet, Nicolas, Guillot, Tristan, Mékarnia, Djamel, Schmider, F. -X., Suárez, Olga, Triaud, Amaury
Small Solar system bodies serve as pristine records that have been minimally altered since their formation. Their observations provide valuable information regarding the formation and evolution of our Solar system. Interstellar objects (ISOs) can als
Externí odkaz:
http://arxiv.org/abs/2309.14180
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