Título:
Stellar Properties for a Comprehensive Collection of Star-forming Regions in the SDSS APOGEE-2 Survey*
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Autor:
Román-Zúñiga, Carlos
Kounkel, Marina
Downes, José
Kounkel, Marina
Downes, José
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Tipo de documento:
Artículo
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Palabras clave:
Young star clusters
Pre-main sequence stars
Star forming regions
Fundamental parameters of stars
Near infrared astronomy
Pre-main sequence stars
Star forming regions
Fundamental parameters of stars
Near infrared astronomy
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Año de publicación:
2023
Contenido:
Resumen:
The Sloan Digital Sky Survey IV APOGEE-2 primary science goal was to observe red giant stars throughout the Galaxy to study its dynamics, morphology, and chemical evolution. The APOGEE instrument, a high-resolution 300-fiber H-band (1.55-1.71 μm) spectrograph, is also ideal to study other stellar populations in the Galaxy, among which are a number of star-forming regions and young open clusters. We present the results of the determination of six stellar properties (T eff, log g , [Fe/H], L/L ⊙, M/M ⊙, and age) for a sample that is composed of 3360 young stars, of subsolar to supersolar types, in 16 Galactic star formation and young open cluster regions. Those sources were selected by using a clustering method that removes most of the field contamination. Samples were also refined by removing targets affected by various systematic effects of the parameter determination. The final samples are presented in a comprehensive catalog that includes all six estimated parameters. This overview study also includes parameter spatial distribution maps for all regions and Hertzsprung-Russell ( log L / L ⊙ vs. T eff) diagrams. This study serves as a guide for detailed studies on individual regions and paves the way for the future studies on the global properties of stars in the pre-main-sequence phase of stellar evolution using more robust samples.
Descripción:
Artículo escrito por 28 autores.
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Editorial:
American Astronomical Society
EN:
The Astronomical Journal, 2023, 165(2): 51
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Citación:
Román-Zúñiga, C, Kounkel, M y Downes, J. "Stellar Properties for a Comprehensive Collection of Star-forming Regions in the SDSS APOGEE-2 Survey*". The Astronomical Journal. [en línea] 2023, 165(2): 51. 23 h. DOI: 10.3847/1538-3881/aca3a4
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1538-3881
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Licencia:
Licencia Creative Commons Atribución (CC - By 4.0)
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| Ficheros | Descripción | Tamaño | Formato | ||
|---|---|---|---|---|---|
| 10.3847.1538-3881.aca3a4 .pdf | — | 4.4 MB | Adobe PDF |