Zobrazeno 1 - 10
of 1 159
pro vyhledávání: '"Lagadec, P."'
Autor:
Sloan, G. C., Kraemer, K. E., Aringer, B., Cami, J., Eriksson, K., Hoefner, S., Lagadec, E., Matsuura, M., McDonald, I., Montiel, E., Sahai, R., Zijlstra, A. A.
Publikováno v:
Galaxies 12 (2024), 61
The Medium-Resolution Spectrometer on the Mid-Infrared Instrument on JWST obtained spectra of three carbon stars in the Large Magellanic Cloud. Two of the spectra differ significantly from spectra obtained ~16-19 years earlier with the Infrared Spect
Externí odkaz:
http://arxiv.org/abs/2411.12842
Autor:
Libourel, Guy, Mokhtari, Marwane, Rohani, Vandad-Julien, Bourdon, Bernard, Ganino, Clément, Lagadec, Eric, Vennéguès, Philippe, Guigoz, Vincent, Cauneau, François, Fulcheri, Laurent
Publikováno v:
2024NatAs.tmp..260L
Condensation processes, which are responsible for the main chemical differences between gas and solids in the Galaxy, are the major mechanisms that control the cycle of dust from evolved stars to planetary systems. However, they are still poorly unde
Externí odkaz:
http://arxiv.org/abs/2411.11529
Autor:
Sahai, Raghvendra, Alcolea, Javier, Balick, Bruce, Blackman, Eric G., Bujarrabal, Valentin, Castro-Carrizo, Arancha, De Marco, Orsola, Kastner, Joel, Kim, Hyosun, Lagadec, Eric, Lee, Chin-Fei, Sabin, Laurence, Santander-Garcia, M., Contreras, Carmen Sánchez, Tafoya, Daniel, Ueta, Toshiya, Vlemmings, Wouter, Zijlstra, Albert
As mass-losing asymptotic giant branch (AGB) stars evolve to planetary nebulae (PNe), the mass outflow geometries transform from nearly spherical to extreme aspherical. The physical mechanisms governing this transformation are widely believed to be l
Externí odkaz:
http://arxiv.org/abs/2409.06038
Autor:
Danilovich, T., Malfait, J., Van de Sande, M., Montargès, M., Kervella, P., De Ceuster, F., Coenegrachts, A., Millar, T. J., Richards, A. M. S., Decin, L., Gottlieb, C. A., Pinte, C., De Beck, E., Price, D. J., Wong, K. T., Bolte, J., Menten, K. M., Baudry, A., de Koter, A., Etoka, S., Gobrecht, D., Gray, M., Herpin, F., Jeste, M., Lagadec, E., Maes, S., McDonald, I., Marinho, L., Müller, H. S. P., Pimpanuwat, B., Plane, J. M. C., Sahai, R., Wallström, S. H. J., Yates, J., Zijlstra, A.
Publikováno v:
Nature Astronomy, 8, pages 308-327 (2024)
Binary interactions have been proposed to explain a variety of circumstellar structures seen around evolved stars, including asymptotic giant branch (AGB) stars and planetary nebulae. Studies resolving the circumstellar envelopes of AGB stars have re
Externí odkaz:
http://arxiv.org/abs/2407.16979
Autor:
Wallstrom, S. H. J., Danilovich, T., Muller, H. S. P., Gottlieb, C. A., Maes, S., Van de Sande, M., Decin, L., Richards, A. M. S., Baudry, A., Bolte, J., Ceulemans, T., De Ceuster, F., de Koter, A., Mellah, I. El, Esseldeurs, M., Etoka, S., Gobrecht, D., Gottlieb, E., Gray, M., Herpin, F., Jeste, M., Kee, D., Kervella, P., Khouri, T., Lagadec, E., Malfait, J., Marinho, L., McDonald, I., Menten, K. M., Millar, T. J., Montarges, M., Nuth, J. A., Plane, J. M. C., Sahai, R., Waters, L. B. F. M., Wong, K. T., Yates, J., Zijlstra, A.
The dusty winds of cool evolved stars are a major contributor of the newly synthesised material enriching the Galaxy and future generations of stars. However, the details of the physics and chemistry behind dust formation and wind launching have yet
Externí odkaz:
http://arxiv.org/abs/2312.03467
Autor:
Leboulleux, Lucie, Cantalloube, Faustine, Foujols, Marie-Alice, Giard, Martin, Guilet, Jérôme, Knödlseder, Jürgen, Santerne, Alexandre, Todorov, Lilia, Barret, Didier, Berne, Olivier, Crida, Aurélien, Hennebelle, Patrick, Kral, Quentin, Lagadec, Eric, Malbet, Fabien, Milli, Julien, N'Diaye, Mamadou, Roques, Françoise
Publikováno v:
SF2A proceedings 2023
To keep current global warming below 1.5{\deg}C compared with the pre-industrial era, measures must be taken as quickly as possible in all spheres of society. Astronomy must also make its contribution. In this proceeding, and during the workshop to w
Externí odkaz:
http://arxiv.org/abs/2311.13625
Autor:
Hansen, Jonah T., Wade, Samuel, Ireland, Michael J., Travouillon, Tony D., Lagadec, Tiphaine, Herrald, Nicholas, Mathew, Joice, Monty, Stephanie, Rains, Adam D.
In the past few years, there has been a resurgence in studies towards space-based optical/infrared interferometry, particularly with the vision to use the technique to discover and characterise temperate Earth-like exoplanets around solar analogues.
Externí odkaz:
http://arxiv.org/abs/2307.07211
Autor:
Cannon, E., Montargès, M., de Koter, A., Matter, A., Sanchez-Bermudez, J., Norris, R., Paladini, C., Decin, L., Sana, H., Sundqvist, J. O., Lagadec, E., Kervella, P., Chiavassa, A., Dupree, A. K., Perrin, G., Scicluna, P., Stee, P., Kraus, S., Danchi, W., Lopez, B., Millour, F., Drevon, J., Cruzalèbes, P., Berio, P., Robbe-Dubois, S., Rosales-Guzman, A.
Publikováno v:
A&A 675, A46 (2023)
The 'Great Dimming' of the prototypical red supergiant Betelgeuse, which occurred between December 2019 and April 2020, gives us unprecedented insight into the processes occurring on the stellar surface and in the inner wind of this type of star. In
Externí odkaz:
http://arxiv.org/abs/2303.08892
Autor:
Martinod, Marc-Antoine, Defrère, Denis, Ireland, Michael, Kraus, Stefan, Martinache, Frantz, Tuthill, Peter, Bigioli, Azzurra, Bryant, Julia, Chhabra, Sorabh, Courtney-Barrer, Benjamin, Crous, Fred, Cvetojevic, Nick, Dandumont, Colin, Garreau, Germain, Lagadec, Tiphaine, Laugier, Romain, Mortimer, Daniel, Norris, Barnaby, Robertson, Gordon, Taras, Adam
The Very Large Telescope Interferometer is one of the most proficient observatories in the world for high angular resolution. Since its first observations, it has hosted several interferometric instruments operating in various bandwidths in the infra
Externí odkaz:
http://arxiv.org/abs/2301.06518
Autor:
Montargès, M., Cannon, E., de Koter, A., Khouri, T., Lagadec, E., Kervella, P., Decin, L., McDonald, I., Homan, W., Waters, L. B. F. M., Sahai, R., Gottlieb, C. A., Malfait, J., Maes, S., Pimpanuwat, B., Jeste, M., Danilovich, T., De Ceuster, F., Van de Sande, M., Gobrecht, D., Wallström, S. H. J., Wong, K. T., Mellah, I. El, Bolte, J., Herpin, F., Richards, A. M. S., Baudry, A., Etoka, S., Gray, M. D., Millar, T. J., Menten, K. M., Müller, H. S. P., Plane, J. M. C., Yates, J., Zijlstra, A.
Publikováno v:
A&A 671, A96 (2023)
Aims. Through the ATOMIUM project, based on an ALMA large program, we aim to present a consistent view of a sample of 17 nearby cool evolved stars (Aymptotic Giant Branch and red supergiant stars). Methods. Here we present VLT/SPHERE-ZIMPOL polarimet
Externí odkaz:
http://arxiv.org/abs/2301.02081