The High-Energy Spectrum of the Young Planet Host V1298 Tau
| Autor: | Duvvuri, Girish M., Cauley, P. Wilson, Aguirre, Fernando Cruz, Kilgard, Roy, France, Kevin, Berta-Thompson, Zachory K., Pineda, J. Sebastian |
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| Rok vydání: | 2023 |
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| Druh dokumentu: | Working Paper |
| Popis: | V1298 Tau is a young pre-main sequence star hosting four known exoplanets that are prime targets for transmission spectroscopy with current-generation instruments. This work pieces together observations from the NICER X-ray telescope, the Space Telescope Imaging Spectrograph and Cosmic Origins Spectrograph instruments aboard Hubble Space Telescope, and empirically informed models to create a panchromatic spectral energy distribution for V1298 Tau spanning 1 to 100000 Angstroms. We describe the methods and assumptions used to assemble the panchromatic spectrum and show that despite this star's brightness, its high-energy spectrum is near the limit of present X-ray and ultraviolet observatories' abilities to characterize. We conclude by using the V1298 Tau spectrum as a benchmark for the activity saturation stage of high-energy radiation from solar-mass stars to compare the lifetime cumulative high-energy irradiation of the V1298 Tau planets to other planets orbiting similarly massive stars. Comment: The V1298 Tau panchromatic SED will be available via the Data Behind the Figure feature for Figure 1 of the final journal article, will be uploaded to the Exoplanet Archive as an IPAC table, and can be provided upon request |
| Databáze: | arXiv |
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