Tag: GIARPS

Hydrogen, helium and sodium in the atmpshere of a Saturn-like exoplanet. The study: “The GAPS programme at TNG. LXIII. Photo-evaporating puzzle: Exploring the enigmatic nature of TOI-5398 b’s atmospheric signal” of M. d’Arpa (INAF-OAPA, UNIPA) appeared on A&A

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The characterization of exoplanetary atmospheres is one of the most active research fields in modern astrophysics, made possible by the development of dedicated instruments and techniques. The basic idea of this research is quite simple: obtaining spectroscopic observations of stars with planets during the transit of the planet in front of its star, which is the moment when part of

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The first study in the framework of GIARPS rules out the existence of a hot Jupiter. The study: “Multi-band high resolution spectroscopy rules out the hot Jupiter BD+20 1790b. First data from the GIARPS Commissioning” of I. Carleo (INAF – OAPd) recently published on A&A

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Most of the exoplanets identified so far have been discovered by using two techniques: transits and radial velocity. In particular, radial velocity method consists in detecting the oscillations of stars around the center of mass common with their planetary systems by measuring periodic doppler shifts in high-resolution spectra. The main difficulty with this technique is the fact that stellar activity,

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