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  1. OA@INAF
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  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
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Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/31637
Title: New Constraints on the Future Evaporation of the Young Exoplanets in the V1298 Tau System
Authors: MAGGIO, Antonio 
Locci, Daniele 
PILLITTERI, Ignazio Francesco 
BENATTI, SERENA 
CLAUDI, Riccardo 
DESIDERA, Silvano 
MICELA, Giuseppina 
Damasso, Mario 
SOZZETTI, Alessandro 
Suarez Mascareño, A.
Issue Date: 2022
Journal: THE ASTROPHYSICAL JOURNAL 
Number: 925
Issue: 2
First Page: 172
Abstract: Transiting planets at young ages are key targets for improving our understanding of the evolution of exo-atmospheres. We present results of a new X-ray observation of V 1298 Tau with XMM-Newton, aimed to determine more accurately the high-energy irradiation of the four planets orbiting this pre-main-sequence star, and the possible variability due to magnetic activity on short and long timescales. Following the first measurements of planetary masses in the V 1298 Tau system, we revise early guesses of the current escape rates from the planetary atmospheres, employing our updated atmospheric evaporation models to predict the future evolution of the system. Contrary to previous expectations, we find that the two outer Jupiter-sized planets will not be affected by any evaporation on Gyr timescales, and the same occurs for the two smaller inner planets, unless their true masses are lower than ~40 Me. These results confirm that relatively massive planets can reach their final position in the mass-radius diagram very early in their evolutionary history.
URI: http://hdl.handle.net/20.500.12386/31637
URL: https://iopscience.iop.org/article/10.3847/1538-4357/ac4040
ISSN: 0004-637X
DOI: 10.3847/1538-4357/ac4040
Bibcode ADS: 2022ApJ...925..172M
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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2112.03739.pdfpreprint1.2 MBAdobe PDFView/Open
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