Zobrazeno 1 - 10
of 796
pro vyhledávání: '"Beuzit J.-L."'
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:
Tschudi, C., Schmid, H. M., Nowak, M., Coroller, H. Le, Hunziker, S., van Holstein, R. G., Perrot, C., Mouillet, D., Augereau, J. -C., Bazzon, A., Beuzit, J. L., Boccaletti, A., Bonse, M. J., Chauvin, G., Desidera, S., Dohlen, K., Dominik, C., Engler, N., Feldt, M., Girard, J. H., Gratton, R., Henning, Th., Kasper, M., Kervella, P., Lagrange, A. -M., Langlois, M., Martinez, P., Ménard, F., Meyer, M. R., Milli, J., Pragt, J., Puget, P., Quanz, S. P., Roelfsema, R., Sauvage, J. -F., Szulagyi, J., Thalmann, Ch., Zurlo, A.
We carried out very deep VLT/SPHERE imaging polarimetry of the nearby system Eps Eri based on 38.5 hours of integration time with a 600 - 900 nm broadband filter to search for polarized scattered light from a planet or from circumstellar dust using A
Externí odkaz:
http://arxiv.org/abs/2404.19504
Autor:
Schmitt, J., Adami, C., Dennefeld, M., Agneray, F., Basa, S., Brunel, J. C., Buat, V., Burgarella, D., Carvalho, C., Castagnoli, G., Grosso, N., Huppert, F., Moreau, C., Moreau, F., Moreau, L., Muslimov, E., Pascal, S., Perruchot, S., Russeil, D., Beuzit, J. L., Dolon, F., Ferrari, M., Hamelin, B., LevanSuu, A., Aravind, K., Gotz, D., Jehin, E., LeFloc'h, E., Palmerio, J., Saccardi, A., Schneider, B., Schüssler, F., Turpin, D., Vergani, S. D.
MISTRAL is the new Faint Object Spectroscopic Camera mounted at the folded Cassegrain focus of the 1.93m telescope of Haute-Provence Observatory. We describe the design and components of the instrument and give some details about its operation. We em
Externí odkaz:
http://arxiv.org/abs/2404.03705
Autor:
Vigan, A., Morsy, M. El, Lopez, M., Otten, G. P. P. L., Garcia, J., Costes, J., Muslimov, E., Viret, A., Charles, Y., Zins, G., Murray, G., Costille, A., Paufique, J., Seemann, U., Houllé, M., Anwand-Heerwart, H., Phillips, M., Abinanti, A., Balard, P., Baraffe, I., Benedetti, J. -A., Blanchard, P., Blanco, L., Beuzit, J. -L., Choquet, E., Cristofari, P., Desidera, S., Dohlen, K., Dorn, R., Ely, T., Fuenteseca, E., Garcia, N., Jaquet, M., Jaubert, F., Kasper, M., Merrer, J. Le, Maire, A. -L., N'Diaye, M., Pallanca, L., Popovic, D., Pourcelot, R., Reiners, A., Rochat, S., Sehim, C., Schmutzer, R., Smette, A., Tchoubaklian, N., Tomlinson, P., Soto, J. Valenzuela
A major endeavor of this decade is the direct characterization of young giant exoplanets at high spectral resolution to determine the composition of their atmosphere and infer their formation processes and evolution. Such a goal represents a major ch
Externí odkaz:
http://arxiv.org/abs/2309.12390
Autor:
Palma-Bifani, P., Chauvin, G., Bonnefoy, M., Rojo, P. M., Petrus, S., Rodet, L., Langlois, M., Allard, F., Charnay, B., Desgrange, C., Homeier, D., Lagrange, A. -M., Beuzit, J. -L., Baudoz, P., Boccaletti, A., Chomez, A., Delorme, P., Desidera, S., Feldt, M., Ginski, C., Gratton, R., Maire, A. -L., Meyer, M., Samland, M., Snellen, I., Vigan, A., Zhang, Y.
Publikováno v:
A&A 670, A90 (2023)
We aim to revisit the system AB Pic which has a known companion at the exoplanet/ brown-dwarf boundary. We based this study on a rich set of observations to investigate the companion's orbit and atmosphere. We composed a spectrum of AB Pic b merging
Externí odkaz:
http://arxiv.org/abs/2211.01474
Autor:
Boccaletti, A., Chauvin, G., Wildi, F., Milli, J., Stadler, E., Diolaiti, E., Gratton, R., Vidal, F., Loupias, M., Langlois, M., Cantalloube, F., N'Diaye, M., Gratadour, D., Ferreira, F., Tallon, M., Mazoyer, J., Segransan, D., Mouillet, D., Beuzit, J. -L., Bonnefoy, M., Galicher, R., Vigan, A., Snellen, I., Feldt, M., Desidera, S., Rousseau, S., Baruffolo, A., Goulas, C., Baudoz, P., Bechet, C., Benisty, M., Bianco, A., Carry, B., Cascone, E., Charnay, B., Choquet, E., Christiaens, V., Cortecchia, F., de Caprio, V., De Rosa, A., Desgrange, C., D'Orazi, V., Douté, S., Frangiamore, M., Gendron, E., Ginski, C., Huby, E., Keller, C., Kulcsár, C., Landman, R., Lagarde, S., Lagadec, E., Lagrange, A. -M., Kasper, M. Lombini M., Ménard, F., Magnard, Y., Malaguti, G., Maurel, D., Mesa, D., Morgante, G., Pantin, E., Pichon, T., Potier, A., Rabou, P., Rochat, S., Terenzi, L., Thiébaut, E., Tallon-Bosc, I., Raynaud, H. -F., Rouan, D., Sevin, A., Schiavone, F., Schreiber, L., Zanutta, A.
SPHERE+ is a proposed upgrade of the SPHERE instrument at the VLT, which is intended to boost the current performances of detection and characterization for exoplanets and disks. SPHERE+ will also serve as a demonstrator for the future planet finder
Externí odkaz:
http://arxiv.org/abs/2209.02092
Autor:
Vigan, A., Lopez, M., Morsy, M. El, Muslimov, E., Viret, A., Zins, G., Murray, G., Costille, A., Otten, G. P. P. L., Seemann, U., Anwand-Heerwart, H., Dohlen, K., Blanchard, P., Garcia, J., Charles, Y., Tchoubaklian, N., Ely, T., Phillips, M., Paufique, J., Beuzit, J. -L., Houllé, M., Costes, J., Pourcelot, R., Baraffe, I., Dorn, R., Jaquet, M., Kasper, M., Reiners, A., Smette, A., Blanco, L., Pallanca, L., Carlotti, A., Choquet, É., Mouillet, D., N'Diaye, M.
New generation exoplanet imagers on large ground-based telescopes are highly optimised for the detection of young giant exoplanets in the near-infrared, but they are intrinsically limited for their characterisation by the low spectral resolution of t
Externí odkaz:
http://arxiv.org/abs/2207.06436
In-depth direct imaging and spectroscopic characterization of the young Solar System analog HD 95086
Autor:
Desgrange, C., Chauvin, G., Christiaens, V., Cantalloube, F., Lefranc, L. -X., Coroller, H. Le, Rubini, P., Otten, G. P. P. L., Beust, H., Bonavita, M., Delorme, P., Devinat, M., Gratton, R., Lagrange, A. -M., Langlois, M., Mesa, D., Milli, J., Szulágyi, J., Nowak, M., Rodet, L., Rojo, P., Petrus, S., Janson, M., Henning, T., Kral, Q., van Holstein, R. G., Ménard, F., Beuzit, J. -L., Biller, B., Boccaletti, A., Bonnefoy, M., Brown, S., Costille, A., Delboulbe, A., Desidera, S., D'Orazi, V., Feldt, M., Fusco, T., Galicher, R., Hagelberg, J., Lazzoni, C., Ligi, R., Maire, A. -L., Messina, S., Meyer, M., Potier, A., Ramos, J., Rouan, D., Schmidt, T., Vigan, A., Zurlo, A.
Publikováno v:
A&A 664, A139 (2022)
Context. HD 95086 is a young nearby Solar System analog hosting a giant exoplanet orbiting at 57 au from the star between an inner and outer debris belt. The existence of additional planets has been suggested as the mechanism that maintains the broad
Externí odkaz:
http://arxiv.org/abs/2206.00425
Autor:
Vigan, A., Dohlen, K., N'Diaye, M., Cantalloube, F., Girard, J., Milli, J., Sauvage, J. -F., Wahhaj, Z., Zins, G., Beuzit, J. -L., Caillat, A., Costille, A., Merrer, J. Le, Mouillet, D., Tourenq, S.
Publikováno v:
A&A 660, A140 (2022)
Coronagraphic imaging of exoplanets using ground-based instruments on large telescopes is intrinsically limited by speckles induced by uncorrected aberrations. These aberrations originate from the imperfect correction of the atmosphere by an extreme
Externí odkaz:
http://arxiv.org/abs/2202.10470
Autor:
Bonnefoy, M., Milli, J., Menard, F., Delorme, P., Chomez, A., Bonavita, M., Lagrange, A-M., Vigan, A., Augereau, J. C., Beuzit, J. L., Biller, B., Boccaletti, A., Chauvin, G., Desidera, S., Faramaz, V., Galicher, R., Gratton, R., Hinkley, S., Lazzoni, C., Matthews, E., Mesa, D., Mordasini, C., Mouillet, D., Olofsson, J., Pinte, C.
Publikováno v:
A&A 655, A62 (2021)
We initiated a deep-imaging survey of Scorpius-Centaurus A-F stars with predicted warm inner and cold outer belts of debris reminiscent of the architecture of emblematic systems such as HR 8799. We present resolved SPHERE images of a narrow ring of d
Externí odkaz:
http://arxiv.org/abs/2111.03335