Zobrazeno 1 - 10
of 254
pro vyhledávání: '"Engler N"'
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:
Columba, G., Rigliaco, E., Gratton, R., Mesa, D., D'Orazi, V., Ginski, C., Engler, N., Williams, J. P., Bae, J., Benisty, M., Birnstiel, T., Delorme, P., Dominik, C., Facchini, S., Menard, F., Pinilla, P., Rab, C., Ribas, Á., Squicciarini, V., van Holstein, R. G., Zurlo, A.
Publikováno v:
A&A 681, A19 (2024)
Context. The study of protoplanetary disks is fundamental to understand their evolution and interaction with the surrounding environment, and to constrain planet formation mechanisms. Aims. We aim at characterising the young binary system HD 34700 A,
Externí odkaz:
http://arxiv.org/abs/2310.16873
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
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:
Squicciarini, V., Gratton, R., Janson, M., Mamajek, E. E., Chauvin, G., Delorme, P., Langlois, M., Vigan, A., Ringqvist, S. C., Meeus, G., Reffert, S., Kenworthy, M., Meyer, M. R., Bonnefoy, M., Bonavita, M., Mesa, D., Samland, M., Desidera, S., D'Orazi, V., Engler, N., Alecian, E., Miglio, A., Henning, T., Quanz, S. P., Mayer, L., Flasseur, O., Marleau, G. D.
Publikováno v:
A&A 664, A9 (2022)
Virtually all known exoplanets reside around stars with $M<2.3~M_\odot$; to clarify if the dearth of planets around more massive stars is real, we launched the direct-imaging B-star Exoplanet Abundance STudy (BEAST) survey targeting B stars ($M>2.4~M
Externí odkaz:
http://arxiv.org/abs/2205.02279
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:
Hunziker, S., Schmid, H. M., Ma, J., Menard, F., Avenhaus, H., Boccaletti, A., Beuzit, J. L., Chauvin, G., Dohlen, K., Dominik, C., Engler, N., Ginski, C., Gratton, R., Henning, T., Langlois, M., Milli, J., Mouillet, D., Tschudi, C., van Holstein, R. G., Vigan, A.
Publikováno v:
A&A 648, A110 (2021)
We present high-precision photometry and polarimetry for the protoplanetary disk around HD142527, with a focus on determining the light scattering parameters of the dust. We re-reduced polarimetric differential imaging data of HD142527 in the VBB (73
Externí odkaz:
http://arxiv.org/abs/2103.08462
Autor:
Mesa, D., Marino, S., Bonavita, M., Lazzoni, C., Fontanive, C., Perez, S., D'Orazi, V., Desidera, S., Gratton, R., Engler, N., Henning, T., Janson, M., Kral, Q., Langlois, M., Messina, S., Milli, J., Pawellek, N., Perrot, C., Rigliaco, E., Rickman, E., Squicciarini, V., Vigan, A., Wahhaj, Z., Zurlo, A., Boccaletti, A., Bonnefoy, M., Chauvin, G., De Caprio, V., Feldt, M., Gluck, L., Hagelberg, J., Keppler, M., Lagrange, A. -M., Launhardt, R., Maire, A. -L., Meyer, M., Moeller-Nilsson, O., Pavlov, A., Samland, M., Schmidt, T., Weber, L.
Recent observations of resolved cold debris disks at tens of au have revealed that gaps could be a common feature in these Kuiper belt analogues. Such gaps could be evidence for the presence of planets within the gaps or closer-in near the edges of t
Externí odkaz:
http://arxiv.org/abs/2102.05353
Autor:
Gratton, R., D'Orazi, V., Pacheco, T. A., Zurlo, A., Desidera, S., Melendez, J., Mesa, D., Claudi, R., Janson, M., Langlois, M., Rickman, E., Samland, M., Moulin, T., Soenke, C., Cascone, E., Ramos, J., Rigal, F., Avenhaus, H., Beuzit, J. L., Biller, B., Boccaletti, A., Bonavita, M., Bonnefoy, M., Brandner, W., Chauvin, G., Cudel, M., Daemgen, S., Delorme, P., Desgrange, C., Engler, N., Feldt, M., Fontanive, C., Galicher, R., Garufi, A., Gasparri, D., Ginski, C., Girard, J., Hagelberg, J., Hunziker, S., Kasper, M., Keppler, M., Lagrange, A. -M., Lannier, J., Lazzoni, C., Coroller, H. Le, Ligi, R., Lombart, M., Maire, A. -L., Mayer, M. R., Mazevet, S., Menard, F., Mouillet, D., Perrot, C., Peretti, S., Petrus, S., Potier, A., Rouan, D., Schmid, H. M., Schmidt, T. O. B., Sissa, E., Stolker, T., Salter, G., Vigan, A., Wildi, F.
Publikováno v:
A&A 646, A61 (2021)
Sirius-like systems are wide binaries composed of a white dwarf (WD) and a companion of a spectral type earlier than M0. The WD progenitor evolves in isolation, but its wind during the AGB phase pollutes the companion surface and transfers some angul
Externí odkaz:
http://arxiv.org/abs/2012.05575