Astrophysics

Astrophysics is an area concerning various physical ranging from planetary sized systems, to galactic scale systems and beyond, that intersects various disciplines such as Newtonian dynamics, relativistic physics and particle physics processes.

For our latest developments/activities in this area, please see the listing below at the end of this article.

Exoplanets

An exoplanet is a planet outside the Solar System. In the Milky Way galaxy, it is expected that there are many billions of planets (at least one planet, on average, orbiting around each star, resulting in 100–400 billion exoplanets), with many more free-floating planetary-mass bodies orbiting the galaxy directly.

We study the long-term dynamics of known multi-planet systems. This allow us to test the accuracy of the orbital parameters' determinations, as well as to understand how these systems evolved. We also look for the stable zones in the gaps between already-known planets in order to determine where is it possible to locate Earth-like planets.

See here a movie made by the PhD Animation on "Exoplanets Explained", for a review on the main observational methods used to detect exoplanets.


Latest Astrophysics Publications

First Sagittarius A* Event Horizon Telescope Results. VII. Polarization of the Ring, The Event Horizon Telescope Collaboration (w/ H. Olivares); ApJL 964 (2024) L25.

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Regular Articles
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First Sagittarius A* Event Horizon Telescope Results. VIII. Physical Interpretation of the Polarized Ring, The Event Horizon Telescope Collaboration (w/ H. Olivares); ApJL 964 (2024) L26.

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Regular Articles
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The imitation game reloaded: effective shadows of dynamically robust spinning Proca stars, I. Sengo, P. V. P. Cunha, C. A. R. Herdeiro, E. Radu; arXiv:2402.14919 [gr-qc].

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Regular Articles
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Ordered magnetic fields around the 3C 84 central black hole, G. F. Paraschos et al. (w/ H. Olivares); Astron. Astrophys. 682 (2024) L3, arXiv:2402.00927 [gr-qc].

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Regular Articles
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Fundamental Physics Opportunities with the Next-Generation Event Horizon Telescope, D. Ayzenberg et al. (w/ P. V P. Cunha and H. Olivares); arXiv:2312.02130 [astro-ph.HE].

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Regular Articles
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Latest Astrophysics News & Events

Jet-like structures in low-mass binary neutron star merger remnants

Gr@v Seminars - Banner
Speaker
Milton Ruiz (University of Valencia)
Event date
Venue
On-site: Room TBD
Event type

GW170817 and GRB 170817A provided direct evidence that binary neutron star (NSNS) mergers can produce short gamma-ray bursts (sGRBs). However, questions remain about the nature of the central engine.