Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Lara, Francisco Espinosa"'
Autor:
Collier, Hannah, Limousin, Olivier, Xiao, Hualin, Claret, Arnaud, Schuller, Frederic, Dresing, Nina, Valkila, Saku, Lara, Francisco Espinosa, Fedeli, Annamaria, Foucambert, Simon, Krucker, Säm
The Spectrometer/Telescope for Imaging X-rays (STIX) is a hard X-ray imaging spectrometer on board the ESA and NASA heliospheric mission Solar Orbiter. STIX has been operational for three years and has observed X-ray emission from ~35,000 solar flare
Externí odkaz:
http://arxiv.org/abs/2402.03816
Publikováno v:
A&A 677, L5 (2023)
Rotation is a key ingredient in the theory of stellar structure and evolution. Until now, stellar evolution codes operate in a 1-D framework for which the validity domain in regards to the rotation rate is not well understood. This letter aims at pre
Externí odkaz:
http://arxiv.org/abs/2308.07362
Autor:
von Forstner, Johan L. Freiherr, Dumbović, Mateja, Möstl, Christian, Guo, Jingnan, Papaioannou, Athanasios, Elftmann, Robert, Xu, Zigong, Terasa, Jan Christoph, Kollhoff, Alexander, Wimmer-Schweingruber, Robert F., Rodríguez-Pacheco, Javier, Weiss, Andreas J., Hinterreiter, Jürgen, Amerstorfer, Tanja, Bauer, Maike, Belov, Anatoly V., Abunina, Maria A., Horbury, Timothy, Davies, Emma E., O'Brien, Helen, Allen, Robert C., Andrews, G. Bruce, Berger, Lars, Boden, Sebastian, Cangas, Ignacio Cernuda, Eldrum, Sandra, Lara, Francisco Espinosa, Herrero, Raúl Gómez, Hayes, John R., Ho, George C., Kulkarni, Shrinivasrao R., Lees, W. Jeffrey, Martín, César, Mason, Glenn M., Pacheco, Daniel, Mateo, Manuel Prieto, Ravanbakhsh, Ali, Polo, Oscar Rodríguez, Prieto, Sebastián Sánchez, Schlemm, Charles E., Seifert, Helmut, Tyagi, Kush, Yedla, Mahesh
Publikováno v:
A&A 656, A1 (2021)
Aims. We present observations of the first coronal mass ejection (CME) observed at the Solar Orbiter spacecraft on April 19, 2020, and the associated Forbush decrease (FD) measured by its High Energy Telescope (HET). This CME is a multispacecraft eve
Externí odkaz:
http://arxiv.org/abs/2102.12185
Autor:
de Souza, Armando Domiciano, Bouchaud, Kévin, Rieutord, Michel, Lara, Francisco Espinosa, Putigny, Bertrand
Publikováno v:
A&A 619, A167 (2018)
Gravity darkening (GD) and flattening are important consequences of stellar rotation. The precise characterization of these effects across the HRD is crucial to a deeper understanding of stellar structure and evolution. We seek to characterize such i
Externí odkaz:
http://arxiv.org/abs/1810.09903
Recent observations of rapidly rotating stars have revealed the presence of regular patterns in their pulsation spectra. This has raised the question as to their physical origin, and in particular, whether they can be explained by an asymptotic frequ
Externí odkaz:
http://arxiv.org/abs/1310.3058
Two-dimensional models of rapidly rotating stars are already unavoidable for the interpretation of interferometric or asteroseismic data of this kind of stars. When combined with time evolution, they will allow the including of a more accurate physic
Externí odkaz:
http://arxiv.org/abs/1310.1017
Autor:
Mirouh, Giovanni M., Reese, Daniel R., Lara, Francisco Espinosa, Ballot, Jérôme, Rieutord, Michel
Many early-type stars have been measured with high angular velocities. In such stars, mode identification is difficult as the effects of fast and differential rotation are not well known. Using fundamental parameters measured by interferometry, the E
Externí odkaz:
http://arxiv.org/abs/1309.3887
Context.Interpretation of light curves of many types of binary stars requires the inclusion of the (cor)relation between surface brightness and local effective gravity. Until recently, this correlation has always been modeled by a power law relating
Externí odkaz:
http://arxiv.org/abs/1210.4004
Modelling isolated rotating stars at any rotation rate is a challenge for the next generation of stellar models. These models will couple dynamical aspects of rotating stars, like angular momentum and chemicals transport, with classical chemical evol
Externí odkaz:
http://arxiv.org/abs/1208.4926
Publikováno v:
A&A 533, A43 (2011)
Interpretation of interferometric observations of rapidly rotating stars requires a good model of their surface effective temperature. Until now, laws of the form T_eff \propto g_eff^{\beta} have been used, but they are only valid for slowly rotating
Externí odkaz:
http://arxiv.org/abs/1109.3038