Zobrazeno 1 - 10
of 8 477
pro vyhledávání: '"Choquet A"'
Autor:
Lau, Alexis, Choquet, Élodie, Altinier, Lisa, Laginja, Iva, Soummer, Rémi, Pueyo, Laurent, Godoy, Nicolas, Vigan, Arthur, Mary, David
The Roman Space Telescope will be a critical mission to demonstrate high-contrast imaging technologies allowing for the characterisation of exoplanets in reflected light. It will demonstrate $10^{-7}$ contrast limits or better at 3--9 $\lambda / D$ s
Externí odkaz:
http://arxiv.org/abs/2409.11062
Publikováno v:
Proceedings Volume 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave
The Roman Coronagraph Instrument will be the first space facility equipped with deformable mirrors (DMs). These will lead to reach a contrast of $10^{-8}$ or better in a dark hole between $3-9 \lambda/D$. Post-processing techniques play an important
Externí odkaz:
http://arxiv.org/abs/2409.05781
Autor:
Godoy, Nicolás, Choquet, Elodie, Serabyn, Eugene, Danielski, Camilla, Stolker, Tomas, Charnay, Benjamin, Hinkley, Sasha, Lagage, Pierre-Olivier, Ressler, Michale E., Tremblin, Pascal, Vigan, Arthur
Context: HR2562B is a planetary-mass companion located 0.56arcsec (19au) from its host star. It is one of a few L/T transitional objects orbiting a young star. This companion provides insight into the evolution of young objects in the L/T transition.
Externí odkaz:
http://arxiv.org/abs/2409.04524
Publikováno v:
Proceedings Volume 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave; 1309252 (2024)
In this study, we explored the fundamental contrast limit of NIRCam coronagraphy observations, representing the achievable performance with post-processing techniques. This limit is influenced by photon noise and readout noise, with complex noise pro
Externí odkaz:
http://arxiv.org/abs/2409.03485
Publikováno v:
Proc. SPIE 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave, 130926I (23 August 2024)
The search for biosignatures in potentially habitable exoplanets is one of the major astrophysics' drivers for the coming decades, and the prime science goal of the HWO NASA mission, a large UV-Optical-IR space telescope to be launched in the 2040s.
Externí odkaz:
http://arxiv.org/abs/2409.02019
Autor:
Mâlin, Mathilde, Boccaletti, Anthony, Perrot, Clément, Baudoz, Pierre, Rouan, Daniel, Lagage, Pierre-Olivier, Waters, Rens, Güdel, Manuel, Henning, Thomas, Vandenbussche, Bart, Absil, Olivier, Barrado, David, Cossou, Christophe, Decin, Leen, Glauser, Adrian M., Pye, John, Olofsson, Goran, Glasse, Alistair, Lahuis, Fred, Patapis, Polychronis, Royer, Pierre, Scheithauer, Silvia, Whiteford, Niall, Serabyn, Eugene, Choquet, Elodie, Colina, Luis, Ostlin, Göran, Ray, Tom P., Wright, Gillian
Mid-infrared imaging of exoplanets and disks is now possible with the coronagraphs of the MIRI on the JWST. This wavelength range unveils new features of young directly imaged systems and allows us to obtain new constraints for characterizing the atm
Externí odkaz:
http://arxiv.org/abs/2408.16843
Autor:
Wallack, Nicole L., Ruffio, Jean-Baptiste, Ruane, Garreth, Ren, Bin B., Xuan, Jerry W., Villenave, Marion, Mawet, Dimitri, Stapelfeldt, Karl, Wang, Jason J., Liu, Michael C., Absil, Olivier, Alvarez, Carlos, Bae, Jaehan, Bond, Charlotte, Bottom, Michael, Calvin, Benjamin, Choquet, Élodie, Christiaens, Valentin, Cook, Therese, Castellá, Bruno Femenía, Gonzalez, Carlos Gomez, Guidi, Greta, Huby, Elsa, Kastner, Joel, Knutson, Heather A., Meshkat, Tiffany, Ngo, Henry, Ragland, Sam, Reggiani, Maddalena, Ricci, Luca, Serabyn, Eugene, Uyama, Taichi, Williams, Jonathan P., Wizinowich, Peter, Zawol, Zoe, Zhang, Shangjia, Zhu, Zhaohuan
Recent Atacama Large Millimeter/submillimeter Array (ALMA) observations of protoplanetary disks in the millimeter continuum have shown a variety of radial gaps, cavities, and spiral features. These substructures may be signposts for ongoing planet fo
Externí odkaz:
http://arxiv.org/abs/2408.04048
Autor:
Pourré, N., Winterhalder, T. O., Bouquin, J. -B. Le, Lacour, S., Bidot, A., Nowak, M., Maire, A. -L., Mouillet, D., Babusiaux, C., Woillez, J., Abuter, R., Amorim, A., Asensio-Torres, R., Balmer, W. O., Benisty, M., Berger, J. -P., Beust, H., Blunt, S., Boccaletti, A., Bonnefoy, M., Bonnet, H., Bordoni, M. S., Bourdarot, G., Brandner, W., Cantalloube, F., Caselli, P., Charnay, B., Chauvin, G., Chavez, A., Choquet, E., Christiaens, V., Clénet, Y., Foresto, V. Coudé du, Cridland, A., Davies, R., Defrère, D., Dembet, R., Dexter, J., Drescher, A., Duvert, G., Eckart, A., Eisenhauer, F., Schreiber, N. M. Föster, Garcia, P., Lopez, R. Garcia, Gendron, E., Genzel, R., Gillessen, S., Girard, J. H., Gonte, F., Grant, S., Haubois, X., Heißel, G., Henning, Th., Hinkley, S., Hippler, S., Hönig, S. F., Houllé, M., Hubert, Z., Jocou, L., Kammerer, J., Kenworthy, M., Keppler, M., Kervella, P., Kreidberg, L., Kurtovic, N. T., Lagrange, A. -M., Lapeyrère, V., Lutz, D., Mang, F., Marleau, G. -D., Mérand, A., Millour, F., Mollière, P., Monnier, J. D., Mordasini, C., Nasedkin, E., Oberti, S., Ott, T., Otten, G. P. L., Paladini, C., Paumard, T., Perraut, K., Perrin, G., Pfuhl, O., Pueyo, L., Ribeiro, D. C., Rickman, E., Rustamkulov, Z., Shangguan, J., Shimizu, T., Sing, D., Soulez, F., Stadler, J., Stolker, T., Straub, O., Straubmeier, C., Sturm, E., Sykes, C., Tacconi, L. J., van Dishoeck, E. F., Vigan, A., Vincent, F., von Fellenberg, S. D., Wang, J., Widmann, F., Yazici, S., Collaboration, the GRAVITY, Abad, J. A., Carpentier, E. Aller, Alonso, J., Andolfato, L., Barriga, P., Beuzit, J. -L., Bourget, P., Brast, R., Caniguante, L., Cottalorda, E., Darré, P., Delabre, B., Delboulbé, A., Delplancke-Ströbele, F., Donaldson, R., Dorn, R., Dupuy, C., Egner, S., Fischer, G., Frank, C., Fuenteseca, E., Gitton, P., Guerlet, T., Guieu, S., Gutierrez, P., Haguenauer, P., Haimerl, A., Heritier, C. T., Huber, S., Hubin, N., Jolley, P., Kirchbauer, J. -P., Kolb, J., Kosmalski, J., Krempl, P., Louarn, M. Le, Lilley, P., Lopez, B., Magnard, Y., Mclay, S., Meilland, A., Meister, A., Moulin, T., Pasquini, L., Paufique, J., Percheron, I., Pettazzi, L., Phan, D., Pirani, W., Quentin, J., Rakich, A., Ridings, R., Reyes, J., Rochat, S., Schmid, C., Schuhler, N., Shchekaturov, P., Seidel, M., Soenke, C., Stadler, E., Stephan, C., Suárez, M., Todorovic, M., Valdes, G., Verinaud, C., Zins, G., Zúñiga-Fernández, S., Collaboration, the NAOMI
Since 2019, GRAVITY has provided direct observations of giant planets and brown dwarfs at separations of down to 95 mas from the host star. Some of these observations have provided the first direct confirmation of companions previously detected by in
Externí odkaz:
http://arxiv.org/abs/2406.04003
Autor:
Nasedkin, E., Mollière, P., Lacour, S., Nowak, M., Kreidberg, L., Stolker, T., Wang, J. J., Balmer, W. O., Kammerer, J., Shangguan, J., Abuter, R., Amorim, A., Asensio-Torres, R., Benisty, M., Berger, J. -P., Beust, H., Blunt, S., Boccaletti, A., Bonnefoy, M., Bonnet, H., Bordoni, M. S., Bourdarot, G., Brandner, W., Cantalloube, F., Caselli, P., Charnay, B., Chauvin, G., Chavez, A., Choquet, E., Christiaens, V., Clénet, Y., Foresto, V. Coudé du, Cridland, A., Davies, R., Dembet, R., Dexter, J., Drescher, A., Duvert, G., Eckart, A., Eisenhauer, F., Schreiber, N. M. Förster, Garcia, P., Lopez, R. Garcia, Gendron, E., Genzel, R., Gillessen, S., Girard, J. H., Grant, S., Haubois, X., Heißel, G., Henning, Th., Hinkley, S., Hippler, S., Houllé, M., Hubert, Z., Jocou, L., Keppler, M., Kervella, P., Kurtovic, N. T., Lagrange, A. -M., Lapeyrère, V., Bouquin, J. -B. Le, Lutz, D., Maire, A. -L., Mang, F., Marleau, G. -D., Mérand, A., Monnier, J. D., Mordasini, C., Ott, T., Otten, G. P. P. L., Paladini, C., Paumard, T., Perraut, K., Perrin, G., Pfuhl, O., Pourré, N., Pueyo, L., Ribeiro, D. C., Rickman, E., Ruffio, J. B., Rustamkulov, Z., Shimizu, T., Sing, D., Stadler, J., Straub, O., Straubmeier, C., Sturm, E., Tacconi, L. J., van Dishoeck, E. F., Vigan, A., Vincent, F., von Fellenberg, S. D., Widmann, F., Winterhalder, T. O., Woillez, J., Yazici, S., Collaboration, the GRAVITY
Publikováno v:
A&A 687, A298 (2024)
With four companions at separations from 16 to 71 au, HR 8799 is a unique target for direct imaging, presenting an opportunity for the comparative study of exoplanets with a shared formation history. Combining new VLTI/GRAVITY observations obtained w
Externí odkaz:
http://arxiv.org/abs/2404.03776
Autor:
Choquet Anne
Publikováno v:
Natures Sciences Sociétés, Vol 26, Iss 1, Pp 49-59 (2018)
Plus de vingt-cinq ans ont passé depuis l’adoption du protocole au traité sur l’Antarctique relatif à la protection de l’environnement (signé à Madrid en 1991) qui consacre l’interdiction des activités relatives aux ressources minérale
Externí odkaz:
https://doaj.org/article/4f01424da1fb44fdb89db2e4927004ee
