PARMAGNUS
RESEARCH
High-precision N-body simulations and in situ individual particle orbit extraction with the NEMO toolbox and gyrfalcON, Walter Dehnen's robust tree code.
Left: Virial ratio (2T/|W|) and total energy variations of a gravitationally cold-collapsed spherical galaxy towards relaxation.
Right: Orbital families in the relaxed, prolate systems, where chaotic orbits are a small percent of the total population.
Left: Spatial evolution in the shape of a cold-collapsed, initially spherical galaxy with 2T/|W|=0.05 Through the N-body simulation, violent relaxation turns the system into a prolate configuration of one million particles. Right: Typical families of orbits extracted with our method directly from the resulting prolate systems of particles: box orbits, short/long-axis tube orbits and chaotic orbits.
ORBITAL STRUCTURE OF DRY BINARY MERGERS OF SPHEROIDAL AND DISK GALAXIES THROUGH COLLISIONLESS N-BODY SIMULATIONS.
In collaboration with University of Barcelona's IDILICO+ astrophysics group, we perform high-precision N-body simulations and in situ individual particle orbit extraction from the relaxed remnants of dry, binary mergers of spheroidal and disk galaxies.
A typical centrophillic, well-resolved box orbit at the central regions of a binary merger remnant of elliptical galaxies, where two-body relaxation dominates. Thousands of orbits are being extracted in situ, directly from our gyrfalcON N-body simulations.
ASTRONOMICAL EPHEMERIDES IN THE HISTORY OF MÉXICO
By means of an astronomical simulator of the night sky and the principle of historical interpolation, we accurately recreate the visible skies during some relevant moments in the history of México. We include in this study non-reported phenomena by historians such as partial eclipses of the Sun and the Moon and the lighting conditions provided by a full or gibbous moon that might have favored, for instance, troop movements at night. El cielo de Hidalgo (in Spanish) is a clear example of this project's goals.
Por medio de un simulador astronómico del cielo diurno/nocturno y del principio de interpolación histórica, recreamos con precisión los cielos visibles en momentos relevantes de la historia de México. Incluímos en este estudio fenómenos no reportados por historiadores como eclipses parciales de sol y luna y las condiciones de iluminación proporcionadas por lunas llenas o gibosas que pudieron favorecer, por ejemplo, desplazamientos nocturnos de tropas. El cielo de Hidalgo ejemplifica claramente los objetivos de este proyecto.
We present new transit photometry of the exoplanet HAT-P-37b, a hot Jupiter orbiting a G-type star 410 pc away, to obtain the planet’s radius, orbital semi-major axis and orbital inclination. The data, collected at the ParMagnus Observatory in the El Paso (USA)-Juárez (México) Magnificent Parallel region, are part of the first differential photometry study by this recently founded suburban astronomical observatory, which in this work provides evidence of the technical capability and photometric resolution possible with medium-sized telescopes and CCD/CMOS cameras, through follow-up observations, to confirm and characterize exoplanets via the photometric transit method. Using AstroImageJ (AIJ), our results for the radius of the exoplanet HAT-P-37b (Rp= 1.02 RJup), its orbital semi-major axis (a/Rs=10.55) and orbital inclination (89.99°) are consistent with those in the literature.