Bibcode
Roman-Lopes, A.; Román-Zúñiga, C.; Tapia, Mauricio; Chojnowski, Drew; Gómez Maqueo Chew, Y.; García-Hernández, D. A.; Borissova, Jura; Minniti, Dante; Covey, Kevin R.; Longa-Peña, Penélope; Fernandez-Trincado, J. G.; Zamora, O.; Nitschelm, Christian
Bibliographical reference
The Astrophysical Journal, Volume 855, Issue 1, article id. 68, 11 pp. (2018).
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3
2018
Journal
Citations
14
Refereed citations
14
Description
In this work, we make use of DR14 APOGEE spectroscopic data to study a
sample of 92 known OB stars. We developed a near-infrared semi-empirical
spectral classification method that was successfully used in case of
four new exemplars, previously classified as later B-type stars. Our
results agree well with those determined independently from ECHELLE
optical spectra, being in line with the spectral types derived from the
“canonical” MK blue optical system. This confirms that the
APOGEE spectrograph can also be used as a powerful tool in surveys
aiming to unveil and study a large number of moderately and highly
obscured OB stars still hidden in the Galaxy.
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Low- to intermediate-mass (M < 8 solar masses, Ms) stars represent the majority of stars in the Cosmos. They finish their lives on the Asymptotic Giant Branch (AGB) - just before they form planetary nebulae (PNe) - where they experience complex nucleosynthetic and molecular processes. AGB stars are important contributors to the enrichment of the
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