S
S. H. P. Alencar
Researcher at Universidade Federal de Minas Gerais
Publications - 41
Citations - 1436
S. H. P. Alencar is an academic researcher from Universidade Federal de Minas Gerais. The author has contributed to research in topics: T Tauri star & Accretion (astrophysics). The author has an hindex of 18, co-authored 34 publications receiving 1242 citations.
Papers
More filters
Journal ArticleDOI
Accretion dynamics and disk evolution in NGC 2264: a study based on the Corot photometric observations
S. H. P. Alencar,Paula S. Teixeira,M. M. Guimarães,Pauline McGinnis,J. F. Gameiro,J. Bouvier,Suzanne Aigrain,Ettore Flaccomio,F. Favata +8 more
TL;DR: In this article, the Corot light curve morphology of the T Tauri star AA Tau was analyzed for 23 days uninterruptedly in March 2008 with unprecedent photometric accuracy and the results of the analysis of the accreting population were presented.
Journal ArticleDOI
The large-scale magnetic field and poleward mass accretion of the classical T Tauri star TW Hya
J.-F. Donati,Scott G. Gregory,S. H. P. Alencar,Jerome Bouvier,G. A. J. Hussain,M. B. Skelly,Catherine Dougados,Moira Jardine,Francois Menard,Marina M. Romanova,Yvonne C. Unruh +10 more
TL;DR: In this paper, spectropolarimetric observations of the TTauri star (cTTS) TWHya were carried out with ESPaDOnS at the Canada-France-Hawaii Telescope (CFHT) in the framework of the Magnetic Protostars and Planets' (MaPP) programme, and obtained at two different epochs (2008 March and 2010 March).
Journal ArticleDOI
Magnetometry of the classical T Tauri star GQ Lup: non-stationary dynamos and spin evolution of young Suns
Jean-François Donati,Scott G. Gregory,S. H. P. Alencar,G. A. J. Hussain,Jerome Bouvier,Catherine Dougados,Moira Jardine,Francois Menard,Marina M. Romanova +8 more
TL;DR: In this paper, spectropolarimetric observations of the T Tauri star GQ Lup were carried out with ESPaDOnS at the Canada-France-Hawaii Telescope (CFHT) in the framework of the Magnetic Protostars and Planets (MaPP) programme, and obtained at two different epochs (2009 July and 2011 June).
Journal ArticleDOI
Accretion dynamics in the classical T Tauri star V2129 Ophiuchi
S. H. P. Alencar,Jerome Bouvier,F. M. Walter,Catherine Dougados,Jean-François Donati,Ryuichi Kurosawa,Marina M. Romanova,X. Bonfils,G. H. R. A. Lima,G. H. R. A. Lima,S. Massaro,Mansur Ibrahimov,Ennio Poretti +12 more
TL;DR: In this article, the authors test the dynamical predictions of the magnetospheric accretion model with synoptic data of the classical T-Tauri star V2129 Oph obtained over several rotational cycles.
Journal ArticleDOI
The close classical T Tauri binary V4046 Sgr: complex magnetic fields and distributed mass accretion
Jean-François Donati,Scott G. Gregory,T. Montmerle,T. Montmerle,Antonio Maggio,Costanza Argiroffi,G. G. Sacco,G. A. J. Hussain,Joel H. Kastner,S. H. P. Alencar,Marc Audard,Jerome Bouvier,Francesco Damiani,Manuel Güdel,D. P. Huenemoerder,Gregg A. Wade +15 more
TL;DR: The first results of a multi-wavelength campaign focusing on magnetospheric accretion processes within the close binary system V4046 Sgr, hosting two partly convective classical T Tauri stars of masses ≃ 0.9 M and age ≃ 12 Myr, were reported in this paper.