Zobrazeno 1 - 10
of 338
pro vyhledávání: '"SAMLAND, M."'
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.
Publikováno v:
A&A 692, A263 (2024)
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:
Arabhavi, A. M., Kamp, I., Henning, Th., van Dishoeck, E. F., Christiaens, V., Gasman, D., Perrin, A., Güdel, M., Tabone, B., Kanwar, J., Waters, L. B. F. M., Pascucci, I., Samland, M., Perotti, G., Bettoni, G., Grant, S. L., Lagage, P. O., Ray, T. P., Vandenbussche, B., Absil, O., Argyriou, I., Barrado, D., Boccaletti, A., Bouwman, J., Garatti, A. Caratti o, Glauser, A. M., Lahuis, F., Mueller, M., Olofsson, G., Pantin, E., Scheithauer, S., Morales-Calderón, M., Franceschi, R., Jang, H., Pawellek, N., Rodgers-Lee, D., Schreiber, J., Schwarz, K., Temmink, M., Vlasblom, M., Wright, G., Colina, L., Östlin, G.
Publikováno v:
Science, Vol 384, Issue 6700, 2024, pp. 1086-1090
Very low-mass stars (those <0.3 solar masses) host orbiting terrestrial planets more frequently than other types of stars, but the compositions of those planets are largely unknown. We use mid-infrared spectroscopy with the James Webb Space Telescope
Externí odkaz:
http://arxiv.org/abs/2406.14293
Autor:
Christiaens, V., Samland, M., Henning, Th., Portilla-Revelo, B., Perotti, G., Matthews, E., Absil, O., Decin, L., Kamp, I., Boccaletti, A., Tabone, B., Marleau, G. -D., van Dishoeck, E. F., Güdel, M., Lagage, P. -O., Barrado, D., Garatti, A. Caratti o, Glauser, A. M., Olofsson, G., Ray, T. P., Scheithauer, S., Vandenbussche, B., Waters, L. B. F. M., Arabhavi, A. M., Grant, S. L., Jang, H., Kanwar, J., Schreiber, J., Schwarz, K., Temmink, M., Östlin, G.
Publikováno v:
A&A 685, L1 (2024)
Context. Two protoplanets have recently been discovered within the PDS 70 protoplanetary disk. JWST/NIRCam offers a unique opportunity to characterize them and their birth environment at wavelengths difficult to access from the ground. Aims. We aim t
Externí odkaz:
http://arxiv.org/abs/2403.04855
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:
Perotti, G., Christiaens, V., Henning, Th., Tabone, B., Waters, L. B. F. M., Kamp, I., Olofsson, G., Grant, S. L., Gasman, D., Bouwman, J., Samland, M., Franceschi, R., van Dishoeck, E. F., Schwarz, K., Güdel, M., Lagage, P. -O., Ray, T. P., Vandenbussche, B., Abergel, A., Absil, O., Arabhavi, A. M., Argyriou, I., Barrado, D., Boccaletti, A., Garatti, A. Caratti o, Geers, V., Glauser, A. M., Justannont, K., Lahuis, F., Mueller, M., Nehmé, C., Pantin, E., Scheithauer, S., Waelkens, C., Guadarrama, R., Jang, H., Kanwar, J., Morales-Calderón, M., Pawellek, N., Rodgers-Lee, D., Schreiber, J., Colina, L., Greve, T. R., Östlin, G., Wright, G.
Terrestrial and sub-Neptune planets are expected to form in the inner ($<10~$AU) regions of protoplanetary disks. Water plays a key role in their formation, although it is yet unclear whether water molecules are formed in-situ or transported from the
Externí odkaz:
http://arxiv.org/abs/2307.12040
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
Autor:
Tabone, B., Bettoni, G., van Dishoeck, E. F., Arabhavi, A. M., Grant, S. L., Gasman, D., Henning, T., Kamp, I., Güdel, M., Lagage, P. -O., Ray, T. P., Vandenbussche, B., Abergel, A., Absil, O., Argyriou, I., Barrado, D., Boccaletti, A., Bouwman, J., Garatti, A. Caratti o, Geers, V., Glauser, A. M., Justannont, K., Lahuis, F., Mueller, M., Nehmé, C., Olofsson, G., Pantin, E., Scheithauer, S., Waelkens, C., Waters, L. B. F. M., Black, J. H., Christiaens, V., Guadarrama, R., Morales-Calderón, M., Jang, H., Kanwar, J., Pawellek, N., Perotti, G., Perrin, A., Rodgers-Lee, D., Samland, M., Schreiber, J., Schwarz, K. R., Colina, L., Östlin, G., Wright, G.
Carbon is an essential element for life but how much can be delivered to young planets is still an open question. The chemical characterization of planet-forming disks is a crucial step in our understanding of the diversity and habitability of exopla
Externí odkaz:
http://arxiv.org/abs/2304.05954
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
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:
Hinkley, S., Lacour, S., Marleau, G. -D., Lagrange, A. M., Wang, J. J., Kammerer, J., Cumming, A., Nowak, M., Rodet, L., Stolker, T., Balmer, W. -O., Ray, S., Bonnefoy, M., Mollière, P., Lazzoni, C., Kennedy, G., Mordasini, C., Abuter, R., Aigrain, S., Amorim, A., Asensio-Torres, R., Babusiaux, C., Benisty, M., Berger, J. -P., Beust, H., Blunt, S., Boccaletti, A., Bohn, A., Bonnet, H., Bourdarot, G., Brandner, W., Cantalloube, F., Caselli, P., Charnay, B., Chauvin, G., Chomez, A., Choquet, E., Christiaens, V., Clénet, Y., Foresto, V. Coudé du, Cridland, A., Delorme, P., Dembet, R., de Zeeuw, P. T., Drescher, A., Duvert, G., Eckart, A., Eisenhauer, F., Feuchtgruber, H., Galland, F., Garcia, P., Lopez, R. Garcia, Gardner, T., Gendron, E., Genzel, R., Gillessen, S., Girard, J. H., Grandjean, A., Haubois, X., Heißel, G., Henning, Th., Hippler, S., Horrobin, M., Houllé, M., Hubert, Z., Jocou, L., Keppler, M., Kervella, P., Kreidberg, L., Lapeyrère, V., Bouquin, J. -B. Le, Léna, P., Lutz, D., Maire, A. -L., Mang, F., Mérand, A., Meunier, N., Monnier, J. D., Mouillet, D., Nasedkin, E., Ott, T., Otten, G. P. P. L., Paladini, C., Paumard, T., Perraut, K., Perrin, G., Philipot, F., Pfuhl, O., Pourré, N., Pueyo, L., Rameau, J., Rickman, E., Rubini, P., Rustamkulov, Z., Samland, M., Shangguan, J., Shimizu, T., Sing, D., Straubmeier, C., Sturm, E., Tacconi, L. J., van Dishoeck, E. F., Vigan, A., Vincent, F., Ward-Duong, K., Widmann, F., Wieprecht, E., Wiezorrek, E., Woillez, J., Yazici, S., Young, A., Zicher, N., Collaboration, the GRAVITY
Long term precise radial velocity (RV) monitoring of the nearby star HD206893, as well as anomalies in the system proper motion, have suggested the presence of an additional, inner companion in the system. Here we describe the results of a multi-epoc
Externí odkaz:
http://arxiv.org/abs/2208.04867