Massive Stars in the SDSS-IV/APOGEE SURVEY. I. OB Stars

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
Referencia bibliográfica

The Astrophysical Journal, Volume 855, Issue 1, article id. 68, 11 pp. (2018).

Fecha de publicación:
3
2018
Número de autores
13
Número de autores del IAC
2
Número de citas
15
Número de citas referidas
14
Descripción
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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