Zobrazeno 1 - 10
of 885
pro vyhledávání: '"Perrot, C."'
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
A technique is proposed that uses a multi-scale approach to calculate transport properties of compressed felts using only image analysis and numerical calculations. From the image analysis fiber diameter distribution and fiber orientation are determi
Externí odkaz:
http://arxiv.org/abs/2309.09388
Autor:
Ligi, R., Vigan, A., Gratton, R., de Boer, J., Benisty, M., Boccaletti, A., Quanz, S. P., Meyer, M., Ginski, C., Sissa, E., Gry, C., Henning, T., Beuzit, J.-L., Biller, B., Bonnefoy, M., Chauvin, G., Cheetham, A. C., Cudel, M., Delorme, P., Desidera, S., Feldt, M., Galicher, R., Girard, J., Janson, M., Kasper, M., Kopytova, T., Lagrange, A.-M., Langlois, M., Lecoroller, H., Maire, A.-L., Ménard, F., Mesa, D., Peretti, S., Perrot, C., Pinilla, P., Pohl, A., Rouan, D., Stolker, T., Samland, M., Wahhaj, Z., Wildi, F., Zurlo, A., Buey, T., Fantinel, D., Fusco, T., Jaquet, M., Moulin, T., Ramos, J., Suarez, M., Weber, L.
We present observations of the Herbig Ae star HD 169142 with the VLT/SPHERE instruments InfraRed Dual-band Imager and Spectrograph (IRDIS) (K1K2 and H2H3 bands) and the Integral Field Spectrograph (IFS) (Y, J and H bands). We detect several bright bl
Externí odkaz:
http://hdl.handle.net/10150/627059
http://arizona.openrepository.com/arizona/handle/10150/627059
http://arizona.openrepository.com/arizona/handle/10150/627059
Autor:
Garufi, A., Quanz, S. P., Schmid, H. M., Mulders, G. D., Avenhaus, H., Boccaletti, A., Ginski, C., Langlois, M., Stolker, T., Augereau, J.-C., Benisty, M., Lopez, B., Dominik, C., Gratton, R., Henning, T., Janson, M., Ménard, F., Meyer, M. R., Pinte, C., Sissa, E., Vigan, A., Zurlo, A., Bazzon, A., Buenzli, E., Bonnefoy, M., Brandner, W., Chauvin, G., Cheetham, A., Cudel, M., Desidera, S., Feldt, M., Galicher, R., Kasper, M., Lagrange, A.-M., Lannier, J., Maire, A. L., Mesa, D., Mouillet, D., Peretti, S., Perrot, C., Salter, G., Wildi, F.
Context. The mechanisms governing planet formation are not fully understood. A new era of high-resolution imaging of protoplanetary disks has recently started, thanks to new instruments such as SPHERE, GPI, and ALMA. The planet formation process can
Externí odkaz:
http://hdl.handle.net/10150/614690
http://arizona.openrepository.com/arizona/handle/10150/614690
http://arizona.openrepository.com/arizona/handle/10150/614690
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
Autor:
Mesa, D., Bonavita, M., Benatti, S., Gratton, R., Marino, S., Kervella, P., D'Orazi, V., Desidera, S., Henning, T., Janson, M., Langlois, M., Rickman, E., Vigan, A., Zurlo, A., Baudino, J. -L., Biller, B., Boccaletti, A., Bonnefoy, M., Brandner, W., Buenzli, E., Cantalloube, F., Fantinel, D., Fontanive, C., Galicher, R., Ginski, C., Girard, J., Hagelberg, J., Kopytova, T., Lazzoni, C., Coroller, H. Le, Ligi, R., Llored, M., Maire, A. -L., Mouillet, D., Perrot, C., Rochat, S., Romero, C., Rouan, D., Samland, M., Schmidt, T. O. B., Sissa, E., Wildi, F.
Aims. This work aims at constraining the masses and separations of potential substellar companions to five accelerating stars (HIP 1481, HIP 88399, HIP 96334, HIP 30314 and HIP 116063) using multiple data sets acquired with different techniques. Meth
Externí odkaz:
http://arxiv.org/abs/2206.12266
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:
Boccaletti, A., Pantin, E., Ménard, F., Galicher, R., Langlois, M., Benisty, M., Gratton, R., Chauvin, G., Ginski, C., Lagrange, A. -M., Zurlo, A., Biller, B., Bonavita, M., Bonnefoy, M., Brown-Sevilla, S., Cantalloube, F., Desidera, S., D'Orazi, V., Feldt, M., Hagelberg, J., Lazzoni, C., Mesa, D., Meyer, M., Perrot, C., Vigan, A., Sauvage, J. -F., Ramos, J., Rousset, G., Magnard, Y.
Context. Spiral arms in protoplanetary disks could be shown to be the manifestation of density waves launched by protoplanets and propagating in the gaseous component of the disk. At least two point sources have been identified in the L band in the M
Externí odkaz:
http://arxiv.org/abs/2107.07850
Autor:
Bonavita, M., Gratton, R., Desidera, S., Squicciarini, V., D'Orazi, V., Zurlo, A., Biller, B., Chauvin, G., Fontanive, C., Janson, M., Messina, S., Menard, F., Meyer, M., Vigan, A., Avenhaus, H., Torres, R. Asensio, Beuzit, J. -L., Boccaletti, A., Bonnefoy, M., Brandner, W., Cantalloube, F., Cheetham, A., Cudel, M., Daemgen, S., Delorme, P., Desgrange, C., Dominik, C., Engler, N., Feautrier, P., Feldt, M., Galicher, R., Garufi, A., Gasparri, D., Ginski, C., Girard, J., Grandjean, A., Hagelberg, J., Henning, Th., Hunziker, S., Kasper, M., Keppler, M., Lagadec, E., Lagrange, A. -M., Langlois, M., Lannier, J., Lazzoni, C., Coroller, H. Le, Ligi, R., Lombart, M., Maire, A. -L., Mazevet, S., Mesa, D., Mouillet, D., Moutou, C., Muller, A., Peretti, S., Perrot, C., Petrus, S., Potier, A., Ramos, J., Rickman, E., Rouan, D., Salter, G., Samland, M., Schmidt, T., Sissa, E., Stolker, T., Szulagyil, J., Udry, S., Wildi, F.
Publikováno v:
A&A 663, A144 (2022)
We present the multiple stellar systems observed within the SpHere INfrared survey for Exoplanet (SHINE). SHINE searched for substellar companions to young stars using high contrast imaging. Although stars with known stellar companions within SPHERE
Externí odkaz:
http://arxiv.org/abs/2103.13706
Autor:
Langlois, M., Gratton, R., Lagrange, A. -M., Delorme, P., Boccaletti, A., Bonnefoy, M., Maire, A. -L., Mesa, D., Chauvin, G., Desidera, S., Vigan, A., Cheetham, A., Hagelberg, J., Feldt, M., Meyer, M., Rubini, P., Coroller, H. Le, Cantalloube, F., Biller, B., Bonavita, M., Bhowmik, T., Brandner, W., Daemgen, S., D'Orazi, V., Flasseur, O., Fontanive, C., Galicher, R., Girard, J., Janin-Potiron, P., Janson, M., Keppler, M., Kopytova, T., Lagadec, E., Lannier, J., Lazzoni, C., Ligi, R., Meunier, N., Perreti, A., Perrot, C., Rodet, L., Romero, C., Rouan, D., Samland, M., Salter, G., Sissa, E., Schmidt, T., Zurlo, A., Mouillet, D., Denis, L., Thiebaut, E., Milli, J., Wahhaj, Z., Beuzit, J. -L., Dominik, C., Henning, Th., Menard, F., Muller, A., Schmid, H. M., Turatto, M., Udry, S., Abe, L., Antichi, J., Allard, F., Baruffolo, A., Baudoz, P., Baudrand, J., Bazzon, A., Blanchard, P., Carbillet, M., Carle, M., Cascone, E., Charton, J., Claudi, R., Costille, A., De Caprio, V., Delboulbe, A., Dohlen, K., Fantinel, D., Feautrier, P., Fusco, T., Gigan, P., Giro, E., Gisler, D., Gluck, L., Gry, C., Hubin, N., Hugot, E., Jaquet, M., Kasper, M., Mignant, D. Le, Llored, M., Madec, F., Magnard, Y., Martinez, P., Maurel, D., Messina, S., Moller-Nilsson, O., Mugnier, L., Moulin, T., Origne, A., Pavlov, A., Perret, D., Petit, C., Pragt, J., Puget, P., Rabou, P., Ramos, J., Rigal, F., Rochat, S., Roelfsema, R., Rousset, G., Roux, A., Salasnich, B., Sauvage, J. F., Sevin, A., Soenke, C., Stadler, E., Suarez, M., Weber, L., Wildi, F., Rickman, E.
Publikováno v:
A&A 651, A71 (2021)
Over the past decades, direct imaging has confirmed the existence of substellar companions (exoplanets or brown dwarfs) on wide orbits (>10 au) from their host stars. To understand their formation and evolution mechanisms, we have initiated in 2015 t
Externí odkaz:
http://arxiv.org/abs/2103.03976