Zobrazeno 1 - 10
of 862
pro vyhledávání: '"Feldt M"'
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:
Brown-Sevilla, S. B., Maire, A. -L., Mollière, P., Samland, M., Feldt, M., Brandner, W., Henning, Th., Gratton, R., Janson, M., Stolker, T., Hagelberg, J., Zurlo, A., Cantalloube, F., Boccaletti, A., Bonnefoy, M., Chauvin, G., Desidera, S., D'Orazi, V., Lagrange, A. -M., Langlois, M., Menard, F., Mesa, D., Meyer, M., Pavlov, A., Petit, C., Rochat, S., Rouan, D., Schmidt, T., Vigan, A., Weber, L.
Publikováno v:
A&A 673, A98 (2023)
[Full abstract in the paper] We aim to better constrain the atmospheric properties of the directly imaged exoplanet 51~Eri~b by using a retrieval approach on higher signal-to-noise data than previously reported. In this context, we also compare the r
Externí odkaz:
http://arxiv.org/abs/2211.14330
The high-albedo, low polarization disk around HD 114082 harbouring a Jupiter-sized transiting planet
Autor:
Engler, N., Milli, J., Gratton, R., Ulmer-Moll, S., Vigan, A., Lagrange, A. -M., Kiefer, F., Rubini, P., Grandjean, A., Schmid, H. M., Messina, S., Squicciarini, V., Olofsson, J., Thébault, P., van Holstein, R. G., Janson, M., Ménard, F., Marshall, J. P., Chauvin, G., Lendl, M., Bhowmik, T., Boccaletti, A., Bonnefoy, M., del Burgo, C., Choquet, E., Desidera, S., Feldt, M., Fusco, T., Girard, J., Gisler, D., Hagelberg, J., Langlois, M., Maire, A. -L., Mesa, D., Meyer, M. R., Rabou, P., Rodet, L., Schmidt, T., Zurlo, A.
Publikováno v:
A&A 672, A1 (2023)
We present new optical and near-IR images of debris disk around the F-type star HD 114082. We obtained direct imaging observations and analysed the TESS photometric time series data of this target with a goal to search for planetary companions and to
Externí odkaz:
http://arxiv.org/abs/2211.11767
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:
Zurlo, A., Gozdziewski, K., Mesa, C. Lazzoni D., Nogueira, P., Desidera, S., Gratton, R., Marzari, F., Pinna, E., Chauvin, G., Delorme, P., Girard, J. H., Hagelberg, J., Henning, Th., Janson, M., Rickman, E., Kervella, P., Avenhaus, H., Bhowmik, T., Biller, B., Boccaletti, A., Bonaglia, M., Bonavita, M., Bonnefoy, M., Cantalloube, F., Cheetham, A., Claudi, R., D'Orazi, V., Feldt, M., Galicher, R., Ghose, E., Lagrange, A. -M., Langlois, M., Coroller, H. le, Ligi, R., Kasper, M., Maire, A. -L., Medard, F., Meyer, M., Peretti, S., Perrot, C., Puglisi, A. T., Rossi, F., Rothberg, B., Schmidt, T., Sissa, E., Vigan, A., Wahhaj, Z.
Publikováno v:
A&A 666, A133 (2022)
HR\,8799 is a young planetary system composed of 4 planets and a double debris belt. Being the first multi-planetary system discovered with the direct imaging technique, it has been observed extensively since 1998. This wide baseline of astrometric m
Externí odkaz:
http://arxiv.org/abs/2207.10684
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:
Ginski, C., Gratton, R., Bohn, A., Dominik, C., Jorquera, S., Chauvin, G., Milli, J., Rodriguez, M., Benisty, M., Launhardt, R., Mueller, A., Cugno, G., van Holstein, R. G., Boccaletti, A., Muro-Arena, G. A., Desidera, S., Keppler, M., Zurlo, A., Sissa, E., Henning, T., Janson, M., Langlois, M., Bonnefoy, M., Cantalloube, F., D'Orazi, V., Feldt, M., Hagelberg, J., Segransan, D., Lagrange, A-M., Lazzoni, C., Meyer, M., Romero, C., Schmidt, T. O. B., Vigan, A., Petit, C., Roelfsema, R., Pragt, J., Weber, L.
Publikováno v:
A&A 662, A74 (2022)
To understand how the multitude of planetary systems that have been discovered come to be, we need to study systems at different evolutionary stages, with different central stars but also in different environments. The most challenging environment fo
Externí odkaz:
http://arxiv.org/abs/2111.11077
Autor:
Mesa, D., Ginski, C., Gratton, R., Ertel, S., Wagner, K., Bonavita, M., Fedele, D., Meyer, M., Henning, T., Langlois, M., Garufi, A., Antoniucci, S., Claudi, R., Defrere, D., Desidera, S., Janson, M., Pawellek, N., Rigliaco, E., Squicciarini, V., Zurlo, A., Boccaletti, A., Bonnefoy, M., Cantalloube, F., Chauvin, G., Feldt, M., Hagelberg, J., Hugot, E., Lagrange, A. -M., Lazzoni, C., Maurel, D., Perrot, C., Petit, C., Rouan, D., Vigan, A.
Publikováno v:
A&A 658, A63 (2022)
Context. Protoplanetary disks around young stars often contain substructures like rings, gaps, and spirals that could be caused by interactions between the disk and forming planets. Aims. We aim to study the young (1-3 Myr) star DR Tau in the near-in
Externí odkaz:
http://arxiv.org/abs/2111.01702
Autor:
Brown-Sevilla, S. B., Keppler, M., Barraza-Alfaro, M., Fuksman, J. D. Melon, Kurtovic, N., Pinilla, P., Feldt, M., Brandner, W., Ginski, C., Henning, Th., Klahr, H., Asensio-Torres, R., Cantalloube, F., Garufi, A., van Holstein, R. G., Langlois, M., Menard, F., Rickman, E., Benisty, M., Chauvin, G., Zurlo, A., Weber, P., Pavlov, A., Ramos, J., Rochat, S., Roelfsema, R.
Publikováno v:
A&A 654, A35 (2021)
[Full abstract in the paper] In recent years, protoplanetary disks with spiral structures have been detected in scattered light, millimeter continuum, and CO gas emission. The mechanisms causing these structures are still under debate. A popular scen
Externí odkaz:
http://arxiv.org/abs/2107.13560