Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Squicciarini V"'
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.
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:
Gratton, R., Bonavita, M., Mesa, D., Zurlo, A., Marino, S., Desidera, S., D'Orazi, V., Rigliaco, E., Squicciarini, V., Nogueira, P. H.
Dynamical masses of young planets aged between 10 and 200 Myr detected in imaging play a crucial role in shaping models of giant planet formation. Regrettably, only a few such objects possess these characteristics. Furthermore, the evolutionary patte
Externí odkaz:
http://arxiv.org/abs/2402.09067
Autor:
Gratton, R., Bonavita, M., Mesa, D., Desidera, S., Zurlo, A., Marino, S., D'Orazi, V., Rigliaco, E., Nascimbeni, V., Barbato, D., Columba, G., Squicciarini, V.
Recently, combining high-contrast imaging and space astrometry we found that Jupiter-like (JL) planets are frequent in the beta Pic moving group (BPMG) around those stars where their orbit can be stable, prompting further analysis and discussion. We
Externí odkaz:
http://arxiv.org/abs/2402.02148
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:
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:
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:
Desidera, S., Damasso, M., Gratton, R., Benatti, S., Nardiello, D., D'Orazi, V., Lanza, A. F., Locci, D., Marzari, F., Mesa, D., Messina, S., Pillitteri, I., Sozzetti, A., Girard, J., Maggio, A., Micela, G., Malavolta, L., Nascimbeni, V., Pinamonti, M., Squicciarini, V., Alcala, J., Biazzo, K., Bohn, A., Bonavita, M., Brooks, K., Chauvin, G., Covino, E., Delorme, P., Hagelberg, J., Janson, M., Lagrange, A. -M., Lazzoni, C.
Publikováno v:
A&A 675, A158 (2023)
Transiting planets around young stars are key benchmarks for our understanding of planetary systems. One of such candidates was identified around the K dwarf HD 18599 by TESS, labeled as TOI-179. We present the confirmation of the transiting planet a
Externí odkaz:
http://arxiv.org/abs/2210.07933
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., Fontanive, C., Gratton, R., Muzic, K., Desidera, S., Biller, B., Scholz, A., Sozzetti, A., Squicciarini, V.
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 513, Issue 4, July 2022, Pages 5588-5605
The last decade of direct imaging (DI) searches for sub-stellar companions has uncovered a widely diverse sample that challenges the current formation models, while highlighting the intrinsically low occurrence rate of wide companions, especially at
Externí odkaz:
http://arxiv.org/abs/2205.02213