Dynamical study of Newtonian and post-Newtonian self-gravitating systems with dark matter

• Grant number: 10/00487-9
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: May 01, 2010
• End date: February 28, 2015
• Field of knowledge: Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
• Principal Investigator: Alberto Vazquez Saa
• Grantee: Ronaldo Savioli Sumé Vieira
• Host Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated research grant: 07/55449-1 - Physics in curved spacetimes, AP.TEM
• Associated scholarship(s): 13/01001-0 - A dynamical study of the Eddington capture sphere, BE.EP.DR

Abstract

Study of Newtonian and post-Newtonian self-gravitating structures with and whthout dark matter halos utilizing tools from dynamical systems. Study of chaos and stability in these models. Qualitative and computational analysis of the problem. Study of the distribution function for the disks and for dark matter.

Scientific publications

(9)

(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)

VIEIRA, RONALDO S. S.; RAMOS-CARO, JAVIER. A SIMPLE FORMULA FOR THE THIRD INTEGRAL OF MOTION OF DISK-CROSSING STARS IN THE GALAXY. ASTROPHYSICAL JOURNAL, v. 786, n. 1, MAY 1 2014. (10/00487-9)

VIEIRA, RONALDO S. S.; KLUZNIAK, WLODEK; ABRAMOWICZ, MAREK. Curvature dependence of relativistic epicyclic frequencies in static, axially symmetric spacetimes. PHYSICAL REVIEW D, v. 95, n. 4, p. 6-pg., 2017-02-08. (10/00487-9, 13/01001-0, 15/10577-9)

VIEIRA, RONALDO S. S.; KLUZNIAK, WLODEK; ABRAMOWICZ, MAREK. Curvature dependence of relativistic epicyclic frequencies in static, axially symmetric spacetimes. Physical Review D, v. 95, n. 4, FEB 8 2017. (10/00487-9, 13/01001-0, 15/10577-9)

VIEIRA, RONALDO S. S.; RAMOS-CARO, JAVIER; SAA, ALBERTO. Vertical stability of circular orbits in relativistic razor-thin disks. Physical Review D, v. 94, n. 10, NOV 7 2016. (15/10577-9, 09/16304-3, 10/00487-9, 13/09357-9)

VIEIRA, RONALDO S. S.; RAMOS-CARO, JAVIER. Envelopes and vertical amplitudes of disc-crossing orbits. Monthly Notices of the Royal Astronomical Society, v. 484, n. 4, p. 5155-5161, APR 2019. (10/00487-9, 13/09357-9)

GOLUCHOVA, KATERINA; KULCZYCKI, KONRAD; VIEIRA, RONALDO S. S.; STUCHLIK, ZDENEK; KLUZNIAK, WLODEK; ABRAMOWICZ, MAREK. Horava's quantum gravity illustrated by embedding diagrams of the Kehagias-Sfetsos spacetimes. GENERAL RELATIVITY AND GRAVITATION, v. 47, n. 11, NOV 2015. (10/00487-9, 13/01001-0, 15/10577-9)

VIEIRA, RONALDO S. S.; RAMOS-CARO, JAVIER. Integrability of motion around galactic razor-thin disks. CELESTIAL MECHANICS & DYNAMICAL ASTRONOMY, v. 126, n. 4, p. 483-500, NOV 2016. (10/00487-9, 15/10577-9, 13/09357-9)

LASOTA, J. -P.; VIEIRA, R. S. S.; SADOWSKI, A.; NARAYAN, R.; ABRAMOWICZ, M. A.. The slimming effect of advection on black-hole accretion flows. Astronomy & Astrophysics, v. 587, MAR 2016. (10/00487-9, 13/01001-0, 15/10577-9)

VIEIRA, RONALDO S. S.; RAMOS-CARO, JAVIER; SAA, ALBERTO. Vertical stability of circular orbits in relativistic razor-thin disks. PHYSICAL REVIEW D, v. 94, n. 10, p. 13-pg., 2016-11-07. (10/00487-9, 09/16304-3, 15/10577-9, 13/09357-9)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

VIEIRA, Ronaldo Savioli Sumé. Dynamical aspects of discoidal astrophysical systems. 2015. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Instituto de Física Gleb Wataghin Campinas, SP.