46 citations · 88 across the 7 of their papers we have counts for
7 papers
Stellar characterization, Magnesium Abundances and Chromospheric Activity Analysis of Stars with Confirmed Exoplanets from the K2 mission
V. Loaiza-Tacuri, Diogo Souto, F. Quispe-Huaynasi +5
We present a homogeneous spectroscopic analysis of confirmed K2 mission exoplanet-hosting stars, comprising 301 targets with high-resolution optical spectra from HIRES and TRES tak…
An Unsupervised Machine Learning Approach to Identify Spectral Energy Distribution Outliers: Application to the S-PLUS DR4 data
F. Quispe-Huaynasi, F. Roig, N. Holanda +12
Identification of specific stellar populations using photometry for spectroscopic follow-up is a first step to confirm and better understand their nature. In this context, we prese…
Stellar Characterization and a Chromospheric Activity Analysis of a K2 Sample of Planet-Hosting Stars
V. Loaiza-Tacuri, Katia Cunha, Verne V. Smith +4
Effective temperatures, surface gravities, and iron abundances were derived for 109 stars observed by the K2 mission using equivalent width measurements of Fe I and Fe II lines. Ca…
Characterisation of high velocity stars in the S-PLUS internal fourth data release
F. Quispe-Huaynasi, F. Roig, V. M. Placco +7
In general, the atypical high velocity of some stars in the Galaxy can only be explained by invoking acceleration mechanisms related to extreme astrophysical events in the Milky Wa…
High Velocity Stars in SDSS/APOGEE DR17
Fredi Quispe-Huaynasi, Fernando Roig, Devin J. McDonald +7
We report 23 stars having Galactocentric velocities larger than in the final data release of the APOGEE survey. This sample was generated using space velo…
Constraints on the structure and seasonal variations of Triton's atmosphere from the 5 October 2017 stellar occultation and previous observations
J. Marques Oliveira, B. Sicardy, A. R. Gomes-Júnior +234
A stellar occultation by Neptune's main satellite, Triton, was observed on 5 October 2017 from Europe, North Africa, and the USA. We derived 90 light curves from this event, 42 of…