Quantitative spectroscopic analyses in the IACOB+OWN project: Massive O-type stars in the Galaxy with the current Gaia information

Bibcode
2017IAUS..329..407H
DOI
10.1017/S1743921317001120
Holgado, G.; Simón-Díaz, S.; Barbá, Rodolfo
Bibliographical reference

The Lives and Death-Throes of Massive Stars, Proceedings of the International Astronomical Union, IAU Symposium, Volume 329, pp. 407-407

Advertised on:
11
2017
Number of authors
3
IAC number of authors
2
Citations
2
Refereed citations
2
Description
We present the results from the quantitative spectroscopic analysis of ~280 likely single O stars targeted by the IACOB and OWN surveys. This implies the largest sample of Galactic O-type stars analyzed homogeneously to date. We used the iacob-broad and iacob-gbat tools (see Simón-Díaz et al. 2011,2015) to obtain the complete set of spectroscopic parameters which can be determined from the optical spectrum of O-type stars: projected rotational velocity (v sin i), macroturbulence velocity (v mac), effective temperature (T eff), gravity (logg), wind-strength (logQ), helium abundance (Y He), microturbulence (ξt), and the exponent of the wind-law (β).
Type
Non-refereed

It may interest you

  • Non-refereed
    Study of basaltic asteroids through their phase curves
    Introduction Classified as type-V, the basaltic asteroids of the Main Belt (MB), for the most part, are connected to Vesta's dynamic family. However, since the discovery of the V-type asteroid (1459) Magnya in the outer MB, several new asteroids have been found in different regions, including V-types from inner regions not belonging to the Vesta
    Arcoverde, Plicida et al.

    Advertised on:

    9
    2024
    Bibcode
    2024EPSC...17..999A
    Citations
    0
  • Non-refereed
    The TESS TTV Follow-up Program: Revealing Volatile-Rich Terrestrial Planets Around M Stars
    Models predict that water-rich planets may be common around low-mass stars, but definitive evidence for the existence of water worlds has remained elusive. Recent JWST observations of sub-Neptune sized planets orbiting nearby M dwarfs found atmospheres enriched in CH4, CO2 and H2O, but the enrichment mechanism is debated. To answer this question
    Greklek-McKeon, Michael et al.

    Advertised on:

    7
    2024
    Bibcode
    2024tsc3.confE..21G
    Citations
    0
  • Non-refereed
    The instrumentation plan of the 10.4m GTC telescope
    The 10.4m Gran Telescopio Canarias (GTC) was designed to be a versatile telescope, able to serve a wide scientific community. To this aim, various focal stations have been equipped, including a Cassegrain, two Nasmyth foci, and four folded-Cassegrain stations. This allows an ambitious instrumentation plan to be developed. We present the latest
    Corradi, Romano L. M. et al.

    Advertised on:

    7
    2024
    Bibcode
    2024SPIE13096E..0HC
    Citations
    0