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

The (ultra) light in the dark: A potential vector boson of 8.7*10^{-13} eV from GW190521, Juan Calderón Bustillo, Nicolas Sanchis-Gual, Alejandro Torres-Forné, José A. Font, Avi Vajpeyi, Rory Smith, Carlos Herdeiro, Eugen Radu, Samson H. W. Leong, arXiv:2009.05376 [gr-qc].

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Spin-induced scalarized black holes, Carlos A.R. Herdeiro, Eugen Radu, Hector O. Silva, Thomas P. Sotiriou, Nicolás Yunes, arXiv:2009.03904 [gr-qc].

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Regular Articles
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Multipolar boson stars: macroscopic Bose-Einstein condensates akin to hydrogen orbitals, C. A. R. Herdeiro, J. Kunz, I. Perapechka, E. Radu, Ya. Shnir; arXiv:2008.10608 [gr-qc].

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Regular Articles
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Synchronised gravitational atoms from mergers of bosonic stars, Nicolas Sanchis-Gual, Miguel Zilhão, Carlos Herdeiro, Fabrizio Di Giovanni, José A. Font, Eugen Radu, arXiv:2007.11584 [gr-qc].

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Regular Articles
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Tidal Love numbers of Proca stars, Carlos A. R. Herdeiro, Grigoris Panotopoulos, Eugen Radu; JCAP 08 (2020) 029arXiv:2006.11083 [gr-qc].

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Regular Articles
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Latest Astrophysics News & Events