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Modeling spectroscopic signatures of stellar activity

Grant number: 21/01303-3
Support Opportunities:Scholarships in Brazil - Doctorate (Direct)
Start date: March 01, 2021
Status:Discontinued
Field of knowledge:Physical Sciences and Mathematics - Astronomy - Stellar Astrophysics
Principal Investigator:Jorge Luis Melendez Moreno
Grantee:Gabriela Carvalho Silva
Host Institution: Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:18/04055-8 - High precision spectroscopy: from the first stars to planets, AP.TEM
Associated scholarship(s):23/16319-8 - Analysis of stellar activity signals in solar-type stars using Gaussian Processes, BE.EP.DD

Abstract

This project aims to better understand stellar activity through characterization of lines with chromospheric contribution, such as the Ca II H and K lines. We also intend to model the effect of stellar activity on radial velocities, which is key in our quest to characterize exoplanets, especially small planets such as super-Earths and in the future Earth analogs. (AU)

News published in Agência FAPESP Newsletter about the scholarship:
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Articles published in other media outlets ( ):
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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
CARVALHO-SILVA, GABRIELA; MELENDEZ, JORGE; RATHSAM, ANNE; SHEJEELAMMAL, J.; MARTOS, GIULIA; LORENZO-OLIVEIRA, DIEGO; SPINA, LORENZO; RIBEIRO ALVES, DEBORA. A New Age-Activity Relation For Solar Analogs that Accounts for Metallicity. Astrophysical Journal Letters, v. 983, n. 2, p. 7-pg., . (23/16319-8, 21/01303-3, 22/05833-0, 22/10325-3, 18/04055-8)