3D NLTE radiative transfer models for testing circumstellar disk physics

• Grant number: 10/16037-2
• Support Opportunities: Research Grants - Visiting Researcher Grant - International
• Start date: December 10, 2010
• End date: June 05, 2011
• Field of knowledge: Physical Sciences and Mathematics - Astronomy - Stellar Astrophysics
• Principal Investigator: Alex Cavaliéri Carciofi
• Grantee: Alex Cavaliéri Carciofi
• Visiting researcher: Jon Eric Bjorkman
• Visiting researcher institution: University of Toledo (UT), United States
• Host Institution: Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

We propose an international collaborative research visit by Prof. J. Bjorkman (Univ. of Toledo) to the University of São Paulo to strengthen and enhance the ongoing collaboration between him and Prof. Carciofi (Univ. of São Paulo). During this visit we will implement new capabilities for our 3-D NLTE Monte Carlo radiation transfer code, HDUST, that will enable us to quantitatively test 3-D theoretical models of circumstellar disks. We will perform these tests by comparing our HDUST model predictions to combined high resolution optical and IR interferometry, spectro-astrometry, spectro-polarimetry, UV/optical/IR spectroscopy, and IR photometry. The proposed code upgrades also will make HDUST applicable to a much wider class of problems, thereby making it much more useful to researchers in other areas of astrophysics. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

CARCIOFI, ALEX C.; BJORKMAN, JON E.; OTERO, SEBASTIAN A.; OKAZAKI, ATSUO T.; STEFL, STANISLAV; RIVINIUS, THOMAS; BAADE, DIETRICH; HAUBOIS, XAVIER. THE FIRST DETERMINATION OF THE VISCOSITY PARAMETER IN THE CIRCUMSTELLAR DISK OF A Be STAR. Astrophysical Journal Letters, v. 744, n. 1, JAN 1 2012. (10/19029-0, 10/16037-2, 09/07477-1)

HAUBOIS, X.; CARCIOFI, A. C.; RIVINIUS, TH; OKAZAKI, A. T.; BJORKMAN, J. E.. DYNAMICAL EVOLUTION OF VISCOUS DISKS AROUND Be STARS. I. PHOTOMETRY. ASTROPHYSICAL JOURNAL, v. 756, n. 2, SEP 10 2012. (09/54006-4, 10/19029-0, 10/16037-2, 09/07477-1)