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Ariel-IT: 5th national meeting on Ariel science

5–7 May 2026
Fuligno Cenacle
Europe/Rome timezone

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Session

Activity, Star-Planet Interactions

6 May 2026, 09:00
Fuligno Cenacle

Fuligno Cenacle

Via Faenza 40, 50123, Firenze

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  1. 42. The role of activity
    Antonino Petralia (Istituto Nazionale di Astrofisica (INAF))
    06/05/2026, 09:30
  2. 25. Characterization of the high-energy irradiation of the exoplanets in Italian Ariel Dry-Run sample
    Dr Antonio Maggio
    06/05/2026, 09:55

    X-ray and UV irradiation from stellar hosts is an important ingredient for modeling photochemistry and photoevaporation processes in exoplanetary atmospheres.
    In the framework of the Italian Ariel Dry-Run esperiment, we have characterized the high-energy emission of the stellar hosts in 8 selected exoplanetary systems.
    We will present the results of this study, including predictions of the...

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  3. 17. Can Ariel Reveal Ionizing Radiation Effects? Insights from Atmospheric Modeling
    Daniele Locci (Istituto Nazionale di Astrofisica (INAF))
    06/05/2026, 10:15

    High-energy stellar radiation (extreme ultraviolet and X-rays, collectively XUV) plays a pivotal role in Star-Planet Interactions (SPI), profoundly shaping the chemical composition and evolution of exoplanetary atmospheres. In this work, we assess the capability of the Ariel space mission to detect spectral signatures resulting from XUV radiation. To this end, we employ cpzephyr, a newly...

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  4. 20. Star-Planet Interaction: the role of stellar activity in shaping the evolution of planetary atmospheres
    Daniele Locci (Istituto Nazionale di Astrofisica (INAF))
    06/05/2026, 10:40

    The evolutionary history of exoplanetary atmospheres is inextricably linked to the activity of their host stars. High-energy stellar irradiation (XUV) and magnetic forces drive complex Star-Planet Interactions (SPI), profoundly altering atmospheric chemistry and driving atmospheric escape. In this talk, we explore these dynamic interactions. We will discuss how the combined effects of stellar...

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  5. 2. Characterizing Stellar Flares in the ARIEL Targets: Activity Analysis and Transit Probabilities
    Gabriele Galletta (Istituto Nazionale di Astrofisica (INAF))
    06/05/2026, 11:30

    The objective of this work is to investigate stellar flaring activity in the confirmed
    exoplanet host stars of the Ariel Mission Candidate Sample (MCS, July 2024 release), with
    the aim of assessing flare probabilities during transit spectroscopy. From the 657 stars
    included in the catalogue, we select a subsample of 290 nearby systems (d < 200 pc) with
    available TESS light curves,...

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  6. 16. Revised TESS Absolute Flux Scale Using Gaia BP/RP Spectra
    Ms Maria Messineo (Istituto Nazionale di Astrofisica (INAF))
    06/05/2026, 11:50

    In the era of large-scale photometric surveys that achieve millimagnitude-level relative precision and have discovered thousands of exoplanets and binary systems, reassessing and improving the absolute flux scale has become essential. Accurate absolute magnitudes are critical for the detailed characterization, classification, and understanding of the formation and dynamical evolution of...

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  7. 43. Discussion on stars
    06/05/2026, 12:10
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