Zobrazeno 1 - 10
of 267
pro vyhledávání: '"Ligi, R"'
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:
Rainer, M., Desidera, S., Borsa, F., Barbato, D., Biazzo, K., Bonomo, A., Gratton, R., Messina, S., Scandariato, G., Affer, L., Benatti, S., Carleo, I., Cabona, L., Covino, E., Lanza, A. F., Ligi, R., Maldonado, J., Mancini, L., Nardiello, D., Sicilia, D., Sozzetti, A., Bignamini, A., Cosentino, R., Knapic, C., Fiorenzano, A. F. Martínez, Molinari, E., Pedani, M., Poretti, E.
Publikováno v:
A&A 676, A90 (2023)
The leading spectrographs used for exoplanets' sceince offer online data reduction softwares (DRS) that yield as an ancillary result the full-width at half-maximum (FWHM) of the cross-correlation function (CCF) that is used to estimate the radial vel
Externí odkaz:
http://arxiv.org/abs/2306.13468
Autor:
Pohl, A., Benisty, M., Pinilla, P., Ginski, C., Boer, J. de, Avenhaus, H., Henning, Th., Zurlo, A., Boccaletti, A., Augereau, J.-C., Birnstiel, T., Dominik, C., Facchini, S., Fedele, D., Janson, M., Keppler, M., Kral, Q., Langlois, M., Ligi, R., Maire, A.-L., Ménard, F., Meyer, M., Pinte, C., Quanz, S. P., Sauvage, J.-F., Sezestre, É., Stolker, T., Szulágyi, J., Boekel, R. van, Plas, G. van der, Villenave, M., Baruffolo, A., Baudoz, P., Mignant, D. Le, Maurel, D., Ramos, J., Weber, L.
HD 169142 is an excellent target for investigating signs of planet-disk interaction due to previous evidence of gap structures. We perform J-band (similar to 1.2 mu m) polarized intensity imaging of HD 169142 with VLT/SPHERE. We observe polarized sca
Externí odkaz:
http://hdl.handle.net/10150/626260
http://arizona.openrepository.com/arizona/handle/10150/626260
http://arizona.openrepository.com/arizona/handle/10150/626260
Autor:
Thalmann, C., Janson, M., Garufi, A., Boccaletti, A., Quanz, S. P., Sissa, E., Gratton, R., Salter, G., Benisty, M., Bonnefoy, M., Chauvin, G., Daemgen, S., Desidera, S., Dominik, C., Engler, N., Feldt, M., Henning, T., Lagrange, A.-M., Langlois, M., Lannier, J., Coroller, H. Le, Ligi, R., Ménard, F., Mesa, D., Meyer, M. R., Mulders, G. D., Olofsson, J., Pinte, C., Schmid, H. M., Vigan, A., Zurlo, A.
LkCa 15 hosts a pre-transitional disk as well as at least one accreting protoplanet orbiting in its gap. Previous disk observations have focused mainly on the outer disk, which is cleared inward of similar to 50 au. The planet candidates, on the othe
Externí odkaz:
http://hdl.handle.net/10150/621504
http://arizona.openrepository.com/arizona/handle/10150/621504
http://arizona.openrepository.com/arizona/handle/10150/621504
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
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:
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:
Desidera, S., Chauvin, G., Bonavita, M., Messina, S., LeCoroller, H., Schmidt, T., Gratton, R., Lazzoni, C., Meyer, M., Schlieder, J., Cheetham, A., Hagelberg, J., Bonnefoy, M., Feldt, M., Lagrange, A-M., Langlois, M., Vigan, A., Tan, T. G., Hambsch, F. -J., Millward, M., Alcala, J., Benatti, S., Brandner, W., Carson, J., Covino, E., Delorme, P., D'Orazi, V., Janson, M., Rigliaco, E., Beuzit, J. -L., Biller, B., Boccaletti, A., Dominik, C., Cantalloube, F., Fontaniv, C., Galicher, R., Henning, Th., Lagadec, E., Ligi, R., Maire, A-L., Menard, F., Mesa, D., Muller, A., Samland, M., Schmid, H. M., Sissa, E., Turatto, M., Udry, S., Asensio-Torres, A. Zurlo R., Kopytova, T., Rickman, E., Abe, L., Antichi, J., Baruffolo, A., Baudoz, P., Baudrand, J., Blanchard, P., Bazzon, A., Buey, T., Carbillet, M., Carle, M., Charton, J., Cascone, E., Claudi, R., Costille, A., Deboulbe, A., De Caprio, V., Dohlen, K., Fantinel, D., Feautrier, P., Fusco, T., Gigan, P., Giro, E., Gisler, D., Gluck, L., Hubin, N., Hugot, E., Jaquet, M., Kasper, M., Madec, F., Magnard, Y., Martinez, P., Maurel, D., Mignant, D. Le, Moller-Nilsson, O., Llored, M., Moulin, T., Origne, A., Pavlov, A., Perret, D., Petit, C., Pragt, J., Puget, P., Rabou, P., Ramon, 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.
Publikováno v:
A&A 651, A70 (2021)
Large surveys with new-generation high-contrast imaging instruments are needed to derive the frequency and properties of exoplanet populations with separations from $\sim$5 to 300 AU. A careful assessment of the stellar properties is crucial for a pr
Externí odkaz:
http://arxiv.org/abs/2103.04366
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