Zobrazeno 1 - 10
of 21
pro vyhledávání: '"J. J. G. Lima"'
Publikováno v:
Astronomy & Astrophysics. 664:A176
Context. There are recent observational evidences that RY Tau may present two different outflow stages, a quiescent one and a more active one. We try to model that phenomenon. Aims. We have performed new 2.5D magneto-hydrodynamical simulations of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e86db7ddba10eeecc7ff30938a2307ad
https://doi.org/10.1051/0004-6361/202142236
https://doi.org/10.1051/0004-6361/202142236
Autor:
C. Melo, R. M. G. de Albuquerque, Silvia H. P. Alencar, J. F. Gameiro, Christophe Sauty, J. J. G. Lima
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 636, pp.A86. ⟨10.1051/0004-6361/201936694⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 636, pp.A86. ⟨10.1051/0004-6361/201936694⟩
Although the Orion Nebula Cluster is one of the most studied clusters in the solar neighborhood, the evolution of the very low-mass members ($M_* < 0.25 \, M_\odot$) has not been fully addressed due to their faintness. Our goal is to verify if some y
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62d78cc14142c4f627835669a53b76f3
https://hal.archives-ouvertes.fr/hal-02613203
https://hal.archives-ouvertes.fr/hal-02613203
Autor:
R. M. G. de Albuquerque, V. Cayatte, Christophe Sauty, J. F. Gameiro, S. Ulmer-Moll, J. J. G. Lima
Publikováno v:
Astrophysics and Space Science Proceedings ISBN: 9783030141271
Observations and simulations have joined efforts to answer many questions raised by the unexpected behavior detected in Young Stellar Objects (YSOs). Classical T Tauri stars (CTTS) are a particular case of YSOs. These objects are interacting with the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e46f9f14b5df7fd070696058f7b3f97c
https://doi.org/10.1007/978-3-030-14128-8_9
https://doi.org/10.1007/978-3-030-14128-8_9
Publikováno v:
Astrophysics and Space Science Proceedings ISBN: 9783030141271
This contribution is a special one dedicated to Kanaris Tsinganos, who promoted MHD Astrophysics and as such was a key leader in the JETSET network. This network finished in 2008 with a great international meeting in Rhodes organised by Kanaris. When
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac679ae26b5bf622bd3e2de660b3f88c
https://doi.org/10.1007/978-3-030-14128-8_21
https://doi.org/10.1007/978-3-030-14128-8_21
Publikováno v:
Physics Education. 56:045018
Experimental teaching is essential for a good understanding of science, especially on Physics. Practical activities play an important role for engaging students with science, mainly when they interact directly with equipment, collect experimental dat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51ad04ad538d41466313eeac083075e6
https://doi.org/10.1088/1361-6552/abfb44
https://doi.org/10.1088/1361-6552/abfb44
Publikováno v:
Astronomische Nachrichten. 333:1032-1035
Small cyclic variations in the frequencies of acoustic modes are expected to be a common phenomenon in solar-like pulsators, as a result of stellar magnetic activity cycles. The frequency variations observed throughout the solar and stellar cycles co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e88adcf04b5edbb8054437fd1b5e59d
https://doi.org/10.1002/asna.201211821
https://doi.org/10.1002/asna.201211821
Autor:
Alexandre Santerne, Pedro Figueira, V. Zh. Adibekyan, Nuno C. Santos, S. C. C. Barros, Mahmoudreza Oshagh, J. J. G. Lima
We assess a physically feasible explanation for the low number of discovered (near-)grazing planetary transits through all ground and space based transit surveys. We performed simulations to generate the synthetic distribution of detectable planets b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f05703a83cbc6d49df41b7bf2f46eda
Application of a MHD hybrid solar wind model with latitudinal dependences to ULYSSES data at minimum
Publikováno v:
Astronomy & Astrophysics. 461:685-694
In a previous work, Ulysses data was analyzed to build a complete axisymmetric MHD solution for the solar wind at minimum including rotation and the initial flaring of the solar wind in the low corona. This model has some problems in reproducing the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12e2d408d92340e5395fe18dbaf047e0
https://doi.org/10.1051/0004-6361:20065123
https://doi.org/10.1051/0004-6361:20065123
Publikováno v:
Astrophysics and Space Science. 287:139-142
It is known that stellar winds from late type stars are of mixed thermal and magnetic origin. The stellar wind model presented in this work uses the hydrodynamic equations of mass and momentum conservation and closes the system of equations with a de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6726369b1177c38c368dbc442750fab7
https://doi.org/10.1023/b:astr.0000006213.25889.c1
https://doi.org/10.1023/b:astr.0000006213.25889.c1
An analytical MHD wind model with latitudinal dependences obtained using separation of the variables
Publikováno v:
Scopus-Elsevier
A new class of analytical 2-D solutions of the full set of the steady magnetohydrodynamic (MHD) equations, describing an axisymmetric helicoidal magnetized outflow originating from a rotating central object, is presented. The solutions are systematic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13a18d8dcd335a2257393280c66684c2
https://doi.org/10.1051/0004-6361:20010353
https://doi.org/10.1051/0004-6361:20010353