Full name: Rodrigo Picanco Negreiros

Present Institution: Frankfurt Institute for Advanced Studies, Johann Wolfgang Goethe University

Current Position: Postdoctoral researcher.

E-mail address: negreiros AT fias.uni-frankfurt.de



2005 – 2009 : Ph.D. student at San Diego State University under the auspices of Dr. Fridolin Weber.

2004-2005 : Msc. obtained at Universidade Federal Fluminense, Niteroi - RJ, Brasil. Under the auspices of Dr. Manuel Malheiro. Dissertation title: " Charged polytropic and anysotropic stars"

2000-2004 : Bsc. at Universidade Federal Fluminense, Niteroi - RJ, Brasil.






  • Compact stars: Neutron Stars, Strange Stars, White dwarfs and black holes. Investigation of the structure, the cooling and composition of such objects.

  • Nuclear physics, mean field theory for neutron star and nuclear matter, neutron rich matter on the crust of neutron stars, crust of neutron star below neutron drip density, pycnonuclear reactions.

  • General Relativity: Tolman – Oppenheimer – Volkoff equation for relativistic stars, Gravitational Waves, theory of electromagnetism on the framework of general relativity.

  • Numerical Methods for computational physics, nonlinear system of PDE's, solution of large non-linear algebraic system, solution of nonlinear systems of ODE's.

  • Numerical languages experience: Fortran (significant experience), C, perl, LaTex, MPI, OpenMP, Matlab.





2009
  • Award of Second Place, 23rd California State University Student Research Competition (state- wide competition), California State University and Lockheed Martin.
  • Fqubed Award, Computational Science Research Center, ACSESS (Applied Computational Science and Engineering Student Support).
  • President's Award in Research and Scholarship, San Diego State University - SRS (Student Research Symposium, university-wide competition).


2008
  • Award of First Place, 22nd California State University Student Research Competition (state-wide competition), California State University and Lockheed Martin.
  • President's Award in Research and Scholarship, San Diego State University - SRS (Student Research Symposium, university-wide competition).
  • 2006
  • Charles Kittel Award (second place), The American Physical Society - California Section.


2004
  • Vasconcelos Torres Award of first place, Undergraduate Research Competition at Universidade Federal Fluminense.




  • Negreiros, R. P., Schramm S., Weber, F.; "The Crust of Spinning Down Neutron Stars", to appear in "Neutron Star Crust", Nova Publishers, edited by C.A. Bertulani and J. Piekarewickz (2011).
  • Negreiros, R. P., Schramm S., Weber, F.; Impact of Rotation-Driven Particle Repopulation on the Thermal Evolution of Pulsars (2011)   (arXiv:1103.3870)
  • Schramm, S., Dexheimer, V., Negreiros, R. P., Schuerhoff, T.; Nuclear matter, nuclei, and neutron stars in hadron and quark-hadron models, to appear in in the proceedings of Advances in Nuclear Physics in Our Time, Goa, India (2011).
  • Weber, F., Negreiros R. P., QCD in neutron stars and strange stars,  AIP Conf.Proc.1354:13-18 (2011)
  • Negreiros, R. P., Mishustin I., Schramm S., Weber F.; Properties of Bare Strange Stars Associated with Surface Electric Fields, Physical Review D  82, 103010 (2010) (arXiv:1008.0277).
  • Negreiros, R. P., Dexheimer V., Schramm S., Modeling Hybrid Stars with an SU(3) non-linear sigma model, Physical Review C 82, 035803 (2010) (arXiv:1006.0380).
  • Niebergal, B., Ouyed R., Negreiros, R. P., Weber, F.; The Meissner Effect and Vortex Expulsion in Color-Superconducting Quark stars, and its Role for Re-heating of Magnetars, Physical Review D 81, 043005 (2010) (arXiv:0906.3043).
  • Weber, F.,  Hamil O., Mimura, K., Negreiros R. P., From crust to core: A brief review of quark matter in neutron stars, International Journal of Modern Physics D 19, 1427 (2010).
  • Niebergal, B., Ouyed R., Negreiros, R. P., Weber, F.; Vortex Dynamics in Color-Superconducting Quark stars: The Re-heating of Magnetars, To appear in Proceedings for "Compact stars in the QCD phase diagram II (CSQCD II) (2010) (arXiv:1007.4860).
  • Weber, F., Negreiros R. P.; Phase Transitions in Dense Baryonic Matter and Cooling of Rotating Neutron Stars, Acta Phys. Polon. Supp. 3, 701-710 (2010) (arXiv:0911.5164).
  • Negreiros R. P., Dexheimer V., Schramm S.; Quark core impact on hybrid star cooling,  (2010) (arXiv:1011.2233).
  • Negreiros, R. P., Weber, F., Malheiro, M. and Usov, V.; Electrically Charged Strange Quark Stars, Physical Review D 80, 083006 (2009) (arXiv:0907.5537).
  • Negreiros, R. P., Weber, F. Thermal properties of neutron stars in the framework of density-dependent nuclear field theory. Accepted for publication in POS Conference proceedings, (2008)
  • Weber, F. ; Negreiros, R. ; Rosenfield, P. ; Neutron Star Interiors and the            Equation of State of Superdense Matter. Astrophysics and Space Sciences Library, 2009, Volume 357, 213-245. (arXiv:0705.2708v2).
  • Weber, F. ; Ho, A. ; Negreiros, R. ; Rosenfield, P . Strangeness in Neutron Stars. International Journal of Modern Physics D, v. 16, p. 231-245 (2007). (arXiv:0604422v1).
  • Weber, F. ; Negreiros, R. ; Rosenfield, P ;  Torres i Cuadrat, A. . The Equation of State of Ultra-dense Stellar Matter. AIP Conference Proceedings, v. 892, p. 515 (2007) (arXiv:0612132v1).
  • Weber, F. ; Meixner, M. ; Negreiros, R. ; Malheiro, M . Ultra-dense Neutron Star Matter, Strange Quark Matter, and the Nuclear Equation of State. International Journal of Modern Physics E, v. 16, p. 1165 (2007) (arXiv0606093v1).
  • Negreiros, R.; Malheiro, M. Charged relativistic stars and the anisotropic formalism. International Journal of Modern Physics D, v. 16, p. 303 (2007).
  • Weber, F. ; Negreiros, R. ; Rosenfield, P ; Stejner, M . Pulsars as Astrophysical Laboratories for Nuclear and Particle Physics. Progress in Particle and Nuclear Physics, v. 59, p. 94-113, 2006 (arXiv:0612054v1).
  • Malheiro, M. ; Negreiros, R. ; Ray, S. ; Lemos, J P S ; Zanchin, V T . Of charged stars and charged black holes. International Journal Of Modern Physics D, v. 13, p. 1375-1379 (2004).
  • Negreiros, R. ; Malheiro, M. ; Ray, S. . Charged polytropic stars and generalization of Lane-Emden equation. International Journal Of Modern Physics D, v. 13, p. 1441-1445 (2004).
  • Negreiros, R. ; Malheiro, M. ; Ray, S . Charged Polytropic Stars . Proceedings of: Hadron Physics and HANP, 2004, Angra dos Reis (2004





2011
  • DPG Muenster 2011 , Muenster, Alemanha. Composition, structure, and thermal evolution of magnetized and rotating compact stars. (Group report).
  • First Caribbean Symposium on Cosmology, Gravitation, Nuclear and Astroparticle Physics, Havana, Cuba. “Cooling of spinning-down and young neutron stars”.
  • 2nd International Symposium on Strong Electromagnetic Fields and Neutron Stars, Varadero, Cuba.
  • From Nuclei to White Dwarfs and Neutron Stars, Les Houches, França. “Cooling of young neutron stars”.

2010
2009
  • California State University Student Research Competition –  The Puzzling Behavior of Anomalous X-Ray Pulsars and Soft Gamma-Ray Repeaters (Oral presentation), Los Angeles, CA.
  • ACSESS (Applied Computational Science and Engineering Student Support), Computational Science Research Center, San Diego, CA.
  • Student Research Symposium – San Diego State University - Cooling of Superconducting Strange Stars (Oral presentation), San Diego, CA.
2008
  • Nuclei in the Cosmos X - Thermal properties of neutron stars in the framework of density-dependent nuclear field theory (Poster), Mackinak Island, MI.
  • Jina School on Nuclear Astrophysics in the cosmos. Participant, Argonne Natl. Lab, Chicago – IL.
  • Student Research Symposium – SDSU. Structure and Thermal Evolution of Neutron Stars, (Oral presentation), San Diego, CA.
  • California State University Student Research Competition. Structure and Thermal Evolution of Neutron Stars (Oral presentation), Union City, CA.

2007
  • 50 years of Nuclear Astrophysics - Charged Strange Stars (poster). Pasadena, CA.
  • Nuclear Mass Model School – Participant, Argonne Natl. Lab, Chicago – IL.

2006
  • American Physical Society - Fall Meeting California Section - Charged Strange Stars (Oral Presentation), Long Beach, CA.

2004
  • Hadron Physics and RANP. (Poster) 2004. Angra dos Reis, RJ – Brazil.
  • XXV National meeting of particle and field physics- (Poster) – Caxambu, MG – Brazil.
  • XXVII National Brazilian Meeting of Nuclear Physics- (Poster) – Santos, SP – Brazil.
  • First School of Cosmic Rays and Astrophysics – Participant. La Paz – Bolivia.

2003
  • International Workshop on Astronomy and Relativistic Astrophysics, (Poster) – Olinda, PE – Brazil.
  • National Symposium on Physics Teaching – Participant. Curitiba, PR – Brazil.























Rodrigo Picanco Negreiros | Frankfurt Institude for Advanced Studies | Johann Wolfgang Goethe Universität |      
                                                                negreiros AT fias.uni-frankfurt.de