Gl 725A b: a potential super-Earth detected with SOPHIE and SPIRou in an M dwarf binary system at 3.5 pc

Autor: Cortes-Zuleta, P., Boisse, I., Ould-Elhkim, M., Wilson, T. G., Larue, P., Carmona, A., Delfosse, X., Donati, J. -F., Forveille, T., Moutou, C., Cameron, A. Collier, Artigau, E., Acuña, L., Altinier, L., Astudillo-Defru, N., Baruteau, C., Bonfils, X., Cabrit, S., Cadieux, C., Cook, N. J., Decocq, E., Diaz, R. F., Fouque, P., da Silva, J. Gomes, Grankin, K., Grouffal, S., Hara, N., Hebrard, G., Heidari, N., Martins, J. H. C., Martioli, E., Maurice, M., Scigliuto, J., Bell, J. Serrano, Sulis, S., Petit, A. C., Vivien, H. G.

We report the discovery of a super-Earth candidate orbiting the nearby mid M dwarf Gl\,725A using the radial velocity (RV) method. The planetary signal has been independently identified using high-precision RVs from the SOPHIE and SPIRou spectrograph

Externí odkaz: http://arxiv.org/abs/2411.09506

Model-independent results on parity violation in the trace anomaly

Autor: Larue, Rémy, Quevillon, Jérémie, Zwicky, Roman

Anomalous parity violation in four dimensions would be significant for phenomenology (baryogenesis, gravitational waves) and mathematical physics. Over the past decade, there has been a controversy in the literature as to whether free Weyl fermions g

Externí odkaz: http://arxiv.org/abs/2411.00571

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

QN-Mixer: A Quasi-Newton MLP-Mixer Model for Sparse-View CT Reconstruction

Autor: Ayad, Ishak, Larue, Nicolas, Nguyen, Maï K.

Inverse problems span across diverse fields. In medical contexts, computed tomography (CT) plays a crucial role in reconstructing a patient's internal structure, presenting challenges due to artifacts caused by inherently ill-posed inverse problems.

Externí odkaz: http://arxiv.org/abs/2402.17951

The SOPHIE search for northern extrasolar planets-XIX. A system including a cold sub-Neptune potentially transiting a V = 6.5 star HD88986

Autor: Heidari, N., Boisse, I., Hara, N. C., Wilson, T. G., Kiefer, F., Hébrard, G., Philipot, F., Hoyer, S., Stassun, K. G., Henry, G. W., Santos, N. C., Acuña, L., Almasian, D., Arnold, L., Astudillo-Defru, N., Attia, O., Bonfils, X., Bouchy, F., Bourrier, V., Collet, B., Cortés-Zuleta, P., Carmona, A., Delfosse, X., Dalal, S., Deleuil, M., Demangeon, O. D. S., Díaz, R. F., Dumusque, X., Ehrenreich, D., Forveille, T., Hobson, M. J., Jenkins, J. S., Jenkins, J. M., Lagrange, A. M., Latham, D. W., Larue, P., Liu, J., Moutou, C., Mignon, L., Osborn, H. P., Pepe, F., Rapetti, D., Rodrigues, J., Santerne, A., Segransan, D., Shporer, A., Sulis, S., Torres, G., Udry, S., Vakili, F., Vanderburg, A., Venot, O., Vivien, H. G., Vines, J. I.

Publikováno v: A&A 681, A55 (2024)

Transiting planets with orbital periods longer than 40 d are extremely rare among the 5000+ planets discovered so far. The lack of discoveries of this population poses a challenge to research into planetary demographics, formation, and evolution. Her

Externí odkaz: http://arxiv.org/abs/2311.13513