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

Bibcode
2018ApJ...855...68R
DOI
10.3847/1538-4357/aaac27
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).

Advertised on:
3
2018
Journal
The Astrophysical Journal
Number of authors
13
IAC number of authors
2
Citations
17
Refereed citations
17
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.
Related projects
Project Image
Nucleosynthesis and molecular processes in the late stages of Stellar Evolution
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
Domingo Aníbal
García Hernández
In progress
Type
Refereed
Exoplanetary Systems & Solar System (SEYSS)
Stellar & Interstellar Physics (FEEI)
The Milky Way and the Local Group (MWLG)
Surveys

It may interest you

  • Refereed
    Planetary nebula evolution for single stellar models. The formation of neutral spikes
    Two-dimensional hydrodynamical simulations are presented from the formation up to the late evolution of planetary nebula, for six different stellar models from 1 to 5 M $_{\odot }$. The hydrodynamical models use stellar evolution calculations as inner boundary conditions and updated values for the number of ionizing photons. Special emphasis is
    García-Segura, Guillermo et al.

    Advertised on:

    11
    2025
    Bibcode
    2025MNRAS.543.3867G
    Citations
    0
  • Refereed
    SN 2024bfu, SN 2025qe, and the early light curves of type Iax supernovae
    Type Iax supernovae (SNe Iax) are one of the most common subclasses of thermonuclear supernova and yet their sample size, particularly those observed shortly after explosion, remains relatively small. In this paper, we present photometric and spectroscopic observations of two SNe Iax discovered shortly after explosion, SN 2024bfu and SN 2025qe
    Magee, M. R. et al.

    Advertised on:

    11
    2025
    Bibcode
    2025MNRAS.543.3731M
    Citations
    0
  • Refereed
    Aligned, Multiple-transient Events in the First Palomar Sky Survey
    Old, digitized astronomical images taken before the human spacefaring age offer a rare glimpse of the sky before the era of artificial satellites. In this paper, we present the first optical searches for artificial objects with high specular reflections near the Earth. We follow the method proposed in Villarroel et al. and use a transient sample
    Villarroel, Beatriz et al.

    Advertised on:

    10
    2025
    Bibcode
    2025PASP..137j4504V
    Citations
    0