activity
20202026
most citedThe Eighteenth Data Release of the Sloan Digital Sky Surveys: Targeting and First Spectra from SDSS-V

282 citations · 396 across the 17 of their papers we have counts for

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Showing astro-ph.SRShow all

13 papers · 1 filter

astro-ph.SR2025

The mass distribution of clumpy accretion onto the nearby young star TW Hya

Tao Ji, Javier Serna, Gregory J. Herczeg +12

The proliferation of high time-resolution and decades-long monitoring of classical T Tauri stars provides a vast opportunity to test the variability of the star-disk connections. H…

astro-ph.SR2025

Atmospheric parameters and chemical abundances of young stars with APOGEE. I. Orion star-forming region

Ricardo López-Valdivia, Lucía Adame, Carlos G. Román-Zúñiga +19

We derive atmospheric parameters and chemical abundances in young G-, K-, and M-type stars (temperatures between 6500 and 3100 K) using infrared APOGEE-2 spectra. Atmospheric param…

astro-ph.SR2025

Testing the bloated star hypothesis in the massive young stellar object IRAS 19520+2759 through optical and infrared variability

Rakesh Pandey, Aina Palau, Javier Serna +8

Using optical time series with Telescopi Joan Oró (TJO), Gaia, TESS, and NEOWISE archival data, we performed a variability study on the candidate bloated massive young stellar obje…

astro-ph.SR2024

Rotational Evolution of Classical T Tauri Stars: Models and Observations

Javier Serna, Giovanni Pinzón, Jesús Hernández +17

We developed a grid of stellar rotation models for low-mass and solar-type Classical T Tauri stars (CTTS) (). These models incorporate the star-…

astro-ph.SR2023★ 1 cited

Twenty-Five Years of Accretion onto the Classical T Tauri Star TW Hya

Gregory J. Herczeg, Yuguang Chen, Jean-Francois Donati +39

Accretion plays a central role in the physics that governs the evolution and dispersal of protoplanetary disks. The primary goal of this paper is to analyze the stability over time…

astro-ph.SR2023★ 19 cited

Stellar Characterization and Radius Inflation of Hyades M Dwarf Stars From the APOGEE Survey

Fábio Wanderley, Katia Cunha, Diogo Souto +23

We present a spectroscopic analysis of a sample of 48 M dwarf stars () from the Hyades open cluster using high-resolution H-band spectra from the…