Zobrazeno 1 - 10
of 9 544
pro vyhledávání: '"LANGLOIS, M."'
Autor:
Delorme, P., Chomez, A., Squicciarini, V., Janson, M., Flasseur, O., Schib, O., Gratton, R., Lagrange, A-M., Langlois, M., Mayer, L., Helled, R., Reïffert, S, Kiefer, F., Biller, B., Chauvin, G., Fontanive, C., Henning, Th., Kenworthy, M., Marleau, G-D., Mesa, D., Meyer, M. R., Mordasini, C., Ringqvist, S. C., Samland, M., Vigan, A., Viswanath, G.
Publikováno v:
A&A 692, A263 (2024)
Exoplanets form from circumstellar protoplanetary discs whose fundamental properties (notably their extent, composition, mass, temperature and lifetime) depend on the host star properties, such as their mass and luminosity. B-stars are among the most
Externí odkaz:
http://arxiv.org/abs/2409.18793
Autor:
Nogueira, P. H., Lazzoni, C., Zurlo, A., Bhowmik, T., Donoso-Oliva, C., Desidera, S., Milli, J., Pérez, S., Delorme, P., Fernadez, A., Langlois, M., Petrus, S., Cabrera-Vives, G., Chauvin, G.
Publikováno v:
A&A 687, A301 (2024)
$\eta$ Tel is an 18 Myr system with a 2.09 M$_{\odot}$ A-type star and an M7-M8 brown dwarf companion, $\eta$ Tel B, separated by 4.2'' (208 au). High-contrast imaging campaigns over 20 years have enabled orbital and photometric characterization. $\e
Externí odkaz:
http://arxiv.org/abs/2405.04723
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:
Ginski, C., Garufi, A., Benisty, M., Tazaki, R., Dominik, C., Ribas, A., Engler, N., Birnstiel, T., Chauvin, G., Columba, G., Facchini, S., Goncharov, A., Hagelberg, J., Henning, T., Hogerheijde, M., van Holstein, R. G., Huang, J., Muto, T., Pinilla, P., Kanagawa, K., Kim, S., Kurtovic, N., Langlois, M., Manara, C., Milli, J., Momose, M., Orihara, R., Pawellek, N., Pinte, C., Rab, C., Schmidt, T. O. B., Snik, F., Wahhaj, Z., Williams, J., Zurlo, A.
We used VLT/SPHERE to observe 20 systems in the Cha I cloud in polarized scattered light in the near-infrared. We combined the scattered light observations with existing literature data on stellar properties and with archival ALMA continuum data to s
Externí odkaz:
http://arxiv.org/abs/2403.02149
Autor:
Gratton, R., Squicciarini, V., Nascimbeni, V., Janson, M., Reffert, S., Meyer, M., Delorme, P., Mamajek, E. E., Bonavita, M., Desidera, S., Mesa, D., Rigliaco, E., D'Orazi, V., Lazzoni, C., Chauvin, G., Langlois, M.
Publikováno v:
A&A 678, A93 (2023)
We discuss the properties of companions to B stars in the Scorpius-Centaurus association (age ~15 Myr, 181 B-stars). We gathered available data combining high contrast imaging samples with evidence of companions from Gaia, from eclipsing binaries, an
Externí odkaz:
http://arxiv.org/abs/2308.09962
Autor:
Turrini, D., Marzari, F., Polychroni, D., Claudi, R., Desidera, S., Mesa, D., Pinamonti, M., Sozzetti, A., Mascareño, A. Suárez, Damasso, M., Benatti, S., Malavolta, L., Micela, G., Zinzi, A., Béjar, V. J. S., Biazzo, K., Bignamini, A., Bonavita, M., Borsa, F., del Burgo, C., Chauvin, G., Delorme, P., Hernández, J. I. González, Gratton, R., Hagelberg, J., Janson, M., Langlois, M., Lanza, A. F., Lazzoni, C., Lodieu, N., Maggio, A., Mancini, L., Molinari, E., Molinaro, M., Murgas, F., Nardiello, D.
Publikováno v:
A&A 679, A55 (2023)
Observational data from space and ground-based campaigns reveal that the 10-30 Ma old V1298 Tau star hosts a compact and massive system of four planets. Mass estimates for the two outer giant planets point to unexpectedly high densities for their you
Externí odkaz:
http://arxiv.org/abs/2307.08653
Autor:
Chomez, A., Squicciarini, V., Lagrange, A. -M., Delorme, P., Viswanath, G., Janson, M., Flasseur, O., Chauvin, G., Langlois, M., Rubini, P., Bergeon, S., Albert, D., Bonnefoy, M., Desidera, S., Engler, N., Gratton, R., Henning, T., Mamajek, E. E., Marleau, G. -D., Meyer, M. R., Reffert, S., Ringqvist, S. C., Samland, M.
Publikováno v:
A&A 676, L10 (2023)
Since 2019, the direct imaging B-star Exoplanet Abundance Study (BEAST) at SPHERE@VLT has been scanning the surroundings of young B-type stars in order to ascertain the ultimate frontiers of giant planet formation. Recently, the $17^{+3}_{-4}$ Myr HI
Externí odkaz:
http://arxiv.org/abs/2307.01195
Autor:
Stray, B., Ennis, O., Hedges, S., Dey, S., Langlois, M., Bongs, K., Lellouch, S., Holynski, M., Bostwick, B., Chen, J., Eyler, Z., Gibson, V., Harte, T. L., Hsu, M., Karzazi, M., Mitchell, J., Mouelle, N., Schneider, U., Tang, Y., Tkalcec, K., Zhi, Y., Clarke, K., Vick, A., Bridges, K., Coleman, J., Elertas, G., Hawkins, L., Hindley, S., Hussain, K., Metelko, C., Throssell, H., Baynham, C. F. A., Buchmuller, O., Evans, D., Hobson, R., Iannizzotto-Venezze, L., Josset, A., Pasatembou, E., Sauer, B. E., Tarbutt, M. R., Badurina, L, Beniwal, A., Blas, D., Carlton, J., Ellis, J., McCabe, C., Bentine, E., Booth, M., Bortoletto, D., Foot, C., Gomez, C., Hird, T., Hughes, K., James, A., Lowe, A., March-Russell, J., Schelfhout, J., Shipsey, I., Weatherill, D., Wood, D., Balashov, S., Bason, M. G., Boehm, J., Courthold, M., van der Grinten, M., Majewski, P., Marchant, A. L., Newbold, D., Pan, Z., Tam, Z., Valenzuela, T., Wilmut, I.
This paper outlines the centralised design and production of the Ultra-High-Vacuum sidearm and Laser-Stabilisation systems for the AION Ultra-Cold Strontium Laboratories. Commissioning data on the residual gas and steady-state pressures in the sidear
Externí odkaz:
http://arxiv.org/abs/2305.20060
Autor:
Chomez, A., Lagrange, A. -M., Delorme, P., Langlois, M., Chauvin, G., Flasseur, O., Dallant, J., Philipot, F., Bergeon, S., Albert, D., Meunier, N., Rubini, P.
Publikováno v:
A&A 675, A205 (2023)
We aim at searching for exoplanets on the whole ESO/VLT-SPHERE archive with improved and unsupervised data analysis algorithm that could allow to detect massive giant planets at 5 au. To prepare, test and optimize our approach, we gathered a sample o
Externí odkaz:
http://arxiv.org/abs/2305.08766
Autor:
Rigliaco, E., Gratton, R., Ceppi, S., Ginski, C., Hogerheijde, M., Benisty, M., Birnstiel, T., Dima, M., Facchini, S., Garufi, A., Bae, J., Langlois, M., Lodato, G., Mamajek, E., Manara, C. F., Ménard, F., Ribas, Á., Zurlo, A.
Publikováno v:
A&A 671, A82 (2023)
Birth environments of young stars have strong imprints on the star itself and their surroundings. We present a detailed analysis of the wealthy circumstellar environment around the young Herbig Ae/Be star TCrA. Our aim is to understand the nature of
Externí odkaz:
http://arxiv.org/abs/2301.01486