Fenomec Mini Workshop on




ICN-UNAM
Instituto de
Ciencias Nucleares
MAGNETIC FIELDS
and
NEUTRON STAR SURFACE
IA-UNAM


Cocoyoc, Mexico, February 12-14, 2007




Purpose of the Workshop:

The year 2007 will celebrate the 40th anniversary of the discovery of pulsars. Neutron stars marked the entrance into physics and astrophysics of objects having magnetic fields whose strength exceeds by many orders of magnitude anything one could even dream of producing in a laboratory. 1012 G, typical for a grind of the mill pulsar, is way above the atomic critical field BA = m2e3c/h3 =2.35x109 G where atomic structure is strongly altered, and magnetars, with fields above 1014 G, are well into the quantum relativistic regime marked by the Schwinger field BQ = m2c3/eh = 4.4x1013 G.
Physics in such fields is alien to everyday experience and constitutes a challenge to our intelligence. Moreover, understanding the neutron star surface is a prerequisite to study the properties of matter at the extreme densities (>1015 g/cm3) reached in the stellar core since an increasingly larger part of the information we have on these stars is coming from detection of their surface thermal emission.

The goal of the meeting is to gather a small group of astrophysicists (both observers and theorists), physicists, and quantum chemists, interested in exploring the behavior of matter under strong magnetic fields typical of neutron star surface.



PHOTO !


Participants:



Talk title:
Expertise related to the workshop:
A. Alijah
Universidade de Coimbra (Portugal)
H3+ : a key molecular ion in the universe and a challeng  for theorists on earth.
H3+ is a key molecular ion in the universe. Its detection in hydrogen-rich planets such as Jupiter (1989) and in interstellar space (1996) relied on data obtained by laboratory spectroscopy and, ultimately, ab initio calculations. H3+ in excited electronic states, for which only theoretical data exist so far, may be present in magnetized hydrogen plasmas. My expertise includes electronic structure calculations,modelling of potential energy surfaces and theoretical spectroscopy, in particular of H3+.
D. Baye
Universite Libre de Brusselles (Belgium)

Hydrogen molecular ion in a strong magnetic field by the Lagrange-mesh method.
Two and three-body atomic and molecular systems in strong magnetic fields:
highly accurate numerical calculations, center-of-mass corrections.
M. I. Eides
University of Kentucky (USA)
Recent progress in high precision QED of light hydrogenlike atoms
(Quantum Electrodynamics.)
N. Guevara Universidad Nacional Autonoma de Mexico (Mexico) Hydrogen molecule in a weak magnetic field
Molecules in magnetic field. Quantum chemistry.
F. Haberl
Max-Plank Institut fur extraterrestrische Physik (Garching, Germany) The Magnificent Seven: Nearby Cooling Neutron Stars with 1013 Gauss Magnetic Fields.
(X-ray observations of cooling neutron stars.)
D. E. Khmelnitskii
University of Cambridge (England)
The Hydrogen Atom in Crossed Electric and Magnetic Fields
(Solid State Physics.)
J. C. Lopez-Vieyra
Universidad Nacional Autonoma de Mexico (Mexico) One-electron Coulomb Systems in  Strong Magnetic Fields: Classification.
Study of one (and two) electron atoms and molecules in presence of a strong magnetic field, up to ~4x1013 G: traditional  systems as well as exotic molecular systems not existing without a magnetic field, and the possible relevance for the chemical composition of the atmosphere of neutron stars.
A. A. Migdal
[formerly Princeton University (USA)]
Mass Spectrum in Large N CFT -- 30 years later.

D. Page
Universidad Nacional Autonoma de Mexico (Mexico) Neutron Stars: Interiors - Surface(s)

Physics and astrophysics of neutron stars (theory):
thermal evolution, structure and evolution of the magnetic field.
G. G. Pavlov
Pennsylvania State University (USA)
He in Neutron Star Atmospheres
(Magnetized plasmas and neutron star atmospheres. X-ray observation of neutron stars)
M. Ruderman
Columbia University (USA)
Inferring neutron star surface magnetic fields and compositions from observations of thermal x-rays.
(Physics and astrophysics of neutron stars.)
B. Shklovskii University of Minnesota (USA)
Entropy driven insulator-metal transition in ion channels and nanopores.
1) Hydrogen like impurities in semiconductors in strong magnetic fields.
2) Beyond mean field theory of screening of macroions by multivalent ions in water solutions leading to charge inversion in chemistry and biology. (this classical phenomenon is similar to the origin of stable anomalous ions in strong magnetic field)

A. Turbiner
Universidad Nacional Autonoma de Mexico (Mexico) Molecular systems in a strong magnetic field
Atoms and molecules in magnetic field, Schroedinger equation, non-perturbative and algebraic methods.
R. Turolla
Universita  degli Studi di Padova (Italy)
X-ray spectra from magnetar candidates: a twist in the field.
Spectral properties of isolated neutron stars. Radiative transfer in magnetized media: NS atmospheres, X-ray emission from magnetars.
S. Zane
University College of London (England)
Neutron Star Crustal Emission: a basic, unanswered question.
Numerical solution of radiative transfer problems under fully relativistic or strongly magnetized conditions.
Neutron star and pulsar physics, spectral and timing properties of isolated pulsars and magnetars.
Students:



C. G. Bernal
Universidad Nacional Autonoma de Mexico (Mexico)

J. Henderson Universidad Nacional Autonoma de Mexico (Mexico)

M. Mayen
Universidad Nacional Autonoma de Mexico (Mexico)

H. Medel
Universidad Nacional Autonoma de Mexico (Mexico)

H. O. Pilon Universidad Nacional Autonoma de Mexico (Mexico)


Schedule of Talks


Logistics:
The workshop will be held at the Hotel Hacienda Cocoyoc

[Laptops (Mac and Windows) as well as projectors (including transparencies) will be available]


Collective return to Mexico City on Wednesday Feb. 14 will be organized.
A guided visit to Teotihuacan will organized on Thursday Feb. 15
Staying in Mexico City: we recommend the Hotel Catedral (very good, excellent location, and cheap)
Going to Cocoyoc

PDF version of "Going to Cocoyoc" for printing"



Note the related program:  "The Neutron Crust and Surface", national Institute for Nuclear Theory, U. of Washington, Seattle, June 18th - July 20th, 2007


Sponsored by: with complementary financial support from:
FENOMEC
UNAMDGAPAICNIACONACYT


Organizers:

Alexander Turbiner
Instituto de Ciencias Nucleares (UNAM)
turbiner@nucleares.unam.mx
Dany Page
Instituto de Astronomi­a (UNAM)
page@astro.unam.mx