Baudin, Fréderic

[["dc.bibliographiccitation.firstpage","13267"],["dc.bibliographiccitation.issue","33"],["dc.bibliographiccitation.journal","Proceedings of the National Academy of Sciences"],["dc.bibliographiccitation.lastpage","13271"],["dc.bibliographiccitation.volume","110"],["dc.contributor.author","Gizon, Laurent"],["dc.contributor.author","Ballot, Jérome"],["dc.contributor.author","Michel, Eric"],["dc.contributor.author","Stahn, Thorsten"],["dc.contributor.author","Vauclair, Gérard"],["dc.contributor.author","Bruntt, Hans"],["dc.contributor.author","Quirion, Pierre-Olivier"],["dc.contributor.author","Benomar, Othman"],["dc.contributor.author","Vauclair, Sylvie"],["dc.contributor.author","Appourchaux, Thierry"],["dc.contributor.author","Auvergne, Michel"],["dc.contributor.author","Baglin, Annie"],["dc.contributor.author","Barban, Caroline"],["dc.contributor.author","Baudin, Fréderic"],["dc.contributor.author","Bazot, Michaël"],["dc.contributor.author","Campante, Tiago"],["dc.contributor.author","Catala, Claude"],["dc.contributor.author","Chaplin, William"],["dc.contributor.author","Creevey, Orlagh"],["dc.contributor.author","Deheuvels, Sébastien"],["dc.contributor.author","Dolez, Noël"],["dc.contributor.author","Elsworth, Yvonne"],["dc.contributor.author","García, Rafael"],["dc.contributor.author","Gaulme, Patrick"],["dc.contributor.author","Mathis, Stéphane"],["dc.contributor.author","Mathur, Savita"],["dc.contributor.author","Mosser, Benoît"],["dc.contributor.author","Régulo, Clara"],["dc.contributor.author","Roxburgh, Ian"],["dc.contributor.author","Salabert, David"],["dc.contributor.author","Samadi, Réza"],["dc.contributor.author","Sato, Kumiko"],["dc.contributor.author","Verner, Graham"],["dc.contributor.author","Hanasoge, Shravan"],["dc.contributor.author","Sreenivasan, Katepalli R."],["dc.date.accessioned","2017-09-07T11:49:44Z"],["dc.date.available","2017-09-07T11:49:44Z"],["dc.date.issued","2013"],["dc.description.abstract","Rotation is thought to drive cyclic magnetic activity in the Sun and Sun-like stars. Stellar dynamos, however, are poorly understood owing to the scarcity of observations of rotation and magnetic fields in stars. Here, inferences are drawn on the internal rotation of a distant Sun-like star by studying its global modes of oscillation. We report asteroseismic constraints imposed on the rotation rate and the inclination of the spin axis of the Sun-like star HD 52265, a principal target observed by the CoRoT satellite that is known to host a planetary companion. These seismic inferences are remarkably consistent with an independent spectroscopic observation (rotational line broadening) and with the observed rotation period of star spots. Furthermore, asteroseismology constrains the mass of exoplanet HD 52265b. Under the standard assumption that the stellar spin axis and the axis of the planetary orbit coincide, the minimum spectroscopic mass of the planet can be converted into a true mass of 1:85+0:52 −0:42MJupiter, which implies that it is a planet, not a brown dwarf."],["dc.identifier.doi","10.1073/pnas.1303291110"],["dc.identifier.gro","3147422"],["dc.identifier.pmid","23898183"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5005"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.relation.issn","0027-8424"],["dc.title","Seismic constraints on rotation of Sun-like star and mass of exoplanet"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.journal","Experimental Astronomy"],["dc.contributor.author","Harra, Louise"],["dc.contributor.author","Andretta, Vincenzo"],["dc.contributor.author","Appourchaux, Thierry"],["dc.contributor.author","Baudin, Frédéric"],["dc.contributor.author","Bellot-Rubio, Luis"],["dc.contributor.author","Birch, Aaron C."],["dc.contributor.author","Boumier, Patrick"],["dc.contributor.author","Cameron, Robert H."],["dc.contributor.author","Carlsson, Matts"],["dc.contributor.author","Corbard, Thierry"],["dc.contributor.author","Schmutz, W."],["dc.date.accessioned","2021-09-01T06:42:39Z"],["dc.date.available","2021-09-01T06:42:39Z"],["dc.date.issued","2021"],["dc.description.abstract","Abstract A mission to view the solar poles from high helio-latitudes (above 60°) will build on the experience of Solar Orbiter as well as a long heritage of successful solar missions and instrumentation (e.g. SOHO Domingo et al. (Solar Phys. 162 (1-2), 1–37 1995), STEREO Howard et al. (Space Sci. Rev. 136 (1-4), 67–115 2008), Hinode Kosugi et al. (Solar Phys. 243 (1), 3–17 2007), Pesnell et al. Solar Phys. 275 (1–2), 3–15 2012), but will focus for the first time on the solar poles, enabling scientific investigations that cannot be done by any other mission. One of the major mysteries of the Sun is the solar cycle. The activity cycle of the Sun drives the structure and behaviour of the heliosphere and of course, the driver of space weather. In addition, solar activity and variability provides fluctuating input into the Earth climate models, and these same physical processes are applicable to stellar systems hosting exoplanets. One of the main obstructions to understanding the solar cycle, and hence all solar activity, is our current lack of understanding of the polar regions. In this White Paper, submitted to the European Space Agency in response to the Voyage 2050 call, we describe a mission concept that aims to address this fundamental issue. In parallel, we recognise that viewing the Sun from above the polar regions enables further scientific advantages, beyond those related to the solar cycle, such as unique and powerful studies of coronal mass ejection processes, from a global perspective, and studies of coronal structure and activity in polar regions. Not only will these provide important scientific advances for fundamental stellar physics research, they will feed into our understanding of impacts on the Earth and other planets’ space environment."],["dc.description.abstract","Abstract A mission to view the solar poles from high helio-latitudes (above 60°) will build on the experience of Solar Orbiter as well as a long heritage of successful solar missions and instrumentation (e.g. SOHO Domingo et al. (Solar Phys. 162 (1-2), 1–37 1995), STEREO Howard et al. (Space Sci. Rev. 136 (1-4), 67–115 2008), Hinode Kosugi et al. (Solar Phys. 243 (1), 3–17 2007), Pesnell et al. Solar Phys. 275 (1–2), 3–15 2012), but will focus for the first time on the solar poles, enabling scientific investigations that cannot be done by any other mission. One of the major mysteries of the Sun is the solar cycle. The activity cycle of the Sun drives the structure and behaviour of the heliosphere and of course, the driver of space weather. In addition, solar activity and variability provides fluctuating input into the Earth climate models, and these same physical processes are applicable to stellar systems hosting exoplanets. One of the main obstructions to understanding the solar cycle, and hence all solar activity, is our current lack of understanding of the polar regions. In this White Paper, submitted to the European Space Agency in response to the Voyage 2050 call, we describe a mission concept that aims to address this fundamental issue. In parallel, we recognise that viewing the Sun from above the polar regions enables further scientific advantages, beyond those related to the solar cycle, such as unique and powerful studies of coronal mass ejection processes, from a global perspective, and studies of coronal structure and activity in polar regions. Not only will these provide important scientific advances for fundamental stellar physics research, they will feed into our understanding of impacts on the Earth and other planets’ space environment."],["dc.identifier.doi","10.1007/s10686-021-09769-x"],["dc.identifier.pii","9769"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/89113"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-455"],["dc.relation.eissn","1572-9508"],["dc.relation.issn","0922-6435"],["dc.title","A journey of exploration to the polar regions of a star: probing the solar poles and the heliosphere from high helio-latitude"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]