activity
20212026
most citedThe relativistic parsec-scale jets of the blazars TXS 0506+056 and PKS 0502+049 and their possible association with gamma-ray flares and neutrino production

9 citations · 11 across the 4 of their papers we have counts for

collaborators

5 papers

astro-ph.SR2026

PHAROS: Panchromatic spectral energy distributions of solar-like stars across evolutionary stages

Viktor Sumida, Raissa Estrela, Eric Mamajek +2

Panchromatic stellar spectral energy distributions (SEDs) provide the wavelength-dependent irradiation fields required for studies of exoplanet atmospheres, photochemistry, atmosph…

astro-ph.EP2026★ 2 cited

Where does the simplified Stellar Contamination Model fail in Exoplanet Transmission Spectroscopy?

Viktor Y. D. Sumida, Raissa Estrela, Mark Swain +1

Stellar photospheric heterogeneities (e.g., starspots, faculae) distort the stellar spectrum in transit and imprint wavelength-dependent biases on the planet-to-star radius ratio (…

astro-ph.EP2025

Evaluating Habitability and Biosignature Detection on TOI-700 d: The Role of UV Environment and Atmospheric Pressure

Viktor Y. D. Sumida, Raissa Estrela, Adriana Valio

M dwarfs have long been prime targets in the search for habitable exoplanets, owing to their abundance in the galaxy and the relative ease of detecting Earth-sized worlds within th…

astro-ph.SR2025

Starspot temperature of CoRoT-2 from multiwavelength observations with SPARC4

Adriana Valio, Eder Martioli, Andre O. Kovacs +5

Measuring starspot temperatures is crucial for understanding stellar magnetic activity, as it affects stellar brightness variations, influences exoplanet transit measurements, and…

astro-ph.HE2021★ 9 cited

The relativistic parsec-scale jets of the blazars TXS 0506+056 and PKS 0502+049 and their possible association with gamma-ray flares and neutrino production

Viktor Y. D. Sumida, André de A. Schutzer, Anderson Caproni +1

The physical nature of the mechanism responsible for the emission of neutrinos in active galactic nuclei (AGN) has been matter of debate in the literature, with relativistic jets o…