Zobrazeno 1 - 10
of 6 974
pro vyhledávání: '"A Doyon"'
Autor:
Kim, Doyon
We give a new proof of the existence of Whittaker functionals for principal series representation of $\text{GL}(n,\mathbb{R})$, utilizing the analytic theory of distributions. We realize Whittaker functionals as equivariant distributions on $\text{GL
Externí odkaz:
http://arxiv.org/abs/2411.09862
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:
Hübner, Friedrich, Doyon, Benjamin
The generalized hydrodynamics (GHD) equation is the equivalent of the Euler equations of hydrodynamics for integrable models. Systems of hyperbolic equations such as the Euler equations usually develop shocks and are plagued by problems of uniqueness
Externí odkaz:
http://arxiv.org/abs/2411.04922
Autor:
Donati, J. -F., Cristofari, P. I., Alencar, S. H. P., Kóspál, Á., Bouvier, J., Moutou, C., Carmona, A., Gregorio-Hetem, J., Manara, C. F., Artigau, E., Doyon, R., Takami, M., Shang, H., Nascimento, J. Dias do, Ménard, F., Gaidos, E., team, the SPIRou science
This paper presents near-infrared spectropolarimetric and velocimetric observations of the young planet-hosting T Tauri star PDS 70, collected with SPIRou at the 3.6m Canada-France-Hawaii Telescope from 2020 to 2024. Clear Zeeman signatures from magn
Externí odkaz:
http://arxiv.org/abs/2411.03089
Autor:
Kim, Doyon
We give a formula for a birational map on the Schubert cell associated to each Weyl group element of $G=\text{GL}(n)$. The map simplifies the UDL decomposition of matrices, providing structural insight into the Schubert cell decomposition of the flag
Externí odkaz:
http://arxiv.org/abs/2410.13519
Autor:
Piaulet-Ghorayeb, Caroline, Benneke, Bjorn, Radica, Michael, Raul, Eshan, Coulombe, Louis-Philippe, Ahrer, Eva-Maria, Kubyshkina, Daria, Howard, Ward S., Krissansen-Totton, Joshua, MacDonald, Ryan, Roy, Pierre-Alexis, Louca, Amy, Christie, Duncan, Fournier-Tondreau, Marylou, Allart, Romain, Miguel, Yamila, Schlichting, Hilke E., Welbanks, Luis, Cadieux, Charles, Dorn, Caroline, Evans-Soma, Thomas M., Fortney, Jonathan J., Pierrehumbert, Raymond, Lafreniere, David, Acuna, Lorena, Komacek, Thaddeus, Innes, Hamish, Beatty, Thomas G., Cloutier, Ryan, Doyon, Rene, Gagnebin, Anna, Gapp, Cyril, Knutson, Heather A.
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 (2.5-4R$_\opl
Externí odkaz:
http://arxiv.org/abs/2410.03527
Autor:
Radica, Michael, Piaulet-Ghorayeb, Caroline, Taylor, Jake, Coulombe, Louis-Philippe, Albert, Loïc, Artigau, Étienne, Benneke, Björn, Cowan, Nicolas B., Doyon, René, Lafrenière, David, L'Heureux, Alexandrine, Lim, Olivia
Attempts to probe the atmospheres of rocky planets around M dwarfs present both promise and peril. While their favorable planet-to-star radius ratios enable searches for even thin secondary atmospheres, their high activity levels and high-energy outp
Externí odkaz:
http://arxiv.org/abs/2409.19333
Autor:
Agol, Eric, Allen, Natalie H., Benneke, Björn, Delrez, Laetitia, Doyon, René, Ducrot, Elsa, Espinoza, Néstor, Gressier, Amélie, Lafrenière, David, Lim, Olivia, Lustig-Yaeger, Jacob, Piaulet-Ghorayeb, Caroline, Radica, Michael, Rustamkulov, Zafar, Sotzen, Kristin S.
The TRAPPIST-1 system has been extensively observed with JWST in the near-infrared with the goal of measuring atmospheric transit transmission spectra of these temperate, Earth-sized exoplanets. A byproduct of these observations has been much more pr
Externí odkaz:
http://arxiv.org/abs/2409.11620
Autor:
Lacedelli, G., Pallè, E., Luque, R., Cadieux, C., Murphy, J. M. Akana, Murgas, F., Osorio, M. R. Zapatero, Tabernero, H. M., Collins, K. A., Watkins, C. N., L'Heureux, A., Doyon, R., Jankowski, D., Nowak, G., Artigau, È., Batalha, N. M., Bean, J. L., Bouchy, F., Brady, M., Martins, B. L. Canto, Carleo, I., Cointepas, M., Conti, D. M., Cook, N. J., Crossfield, I. J. M., Hernàndez, J. I. Gonzàlez, Lewin, P., Nari, N., Nielsen, L. D., Orell-Miquel, J., Parc, L., Schwarz, R. P., Srdoc, G., Van Eylen, V.
The exoplanet sub-Neptune population currently poses a conundrum. Are small-size planets volatile-rich cores without atmosphere, or are they rocky cores surrounded by H-He envelope? To test the different hypotheses from an observational point of view
Externí odkaz:
http://arxiv.org/abs/2409.11083
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