Fundamental Stellar Parameters Derived From High-Resolution High Signal-To-Noise Spectra of Stars Within 15pc of the Sun

Bibcode
2004AAS...205.5208O
Olgin, J. G.; Smith, V. V.; Cunha, K.; Allende-Prieto, C.
Referencia bibliográfica

American Astronomical Society Meeting 205, #52.08; Bulletin of the American Astronomical Society, Vol. 36, p.1424

Fecha de publicación:
12
2004
Número de autores
4
Número de autores del IAC
0
Número de citas
0
Número de citas referidas
0
Descripción
High-resolution spectra of a sample of all known stars more luminous than MV=+6.5 and closer than 15 parsecs are being analyzed spectroscopically in order to derive their effective temperatures and surface gravities. These spectra are taken from the database of "A Spectroscopic Survey of Stars in the Solar Neighborhood". The analysis utilizes a sample of Fe I and Fe II lines. The stellar parameters derived from this analysis are compared to previously published values from various studies. A comparison of the different temperature scales will be discussed as well as the impact these differences have on chemical abundance studies of cool stars. This research is supported in part by the National Science Foundation (AST03-07534 and AST03-07532),NASA (NAG5-13175), and JPL.
Tipo
Sin árbitro

Te puede interesar

  • Sin árbitro
    Galaxy archaeology - The quest for ancient mergers
    The hierarchical assembly of galaxies through mergers is a key channel of galaxy evolution in the ΛCDM cosmological model. Quantifying these ancient transformative accretion events from observations of present day galaxies is a crucial goal of extragalactic archeology. Achieving this goal is challenging as the dominant epoch of galaxy assembly lies
    Ackerl, C. et al.

    Fecha de publicación:

    3
    2024
    Bibcode
    2024aecc.conf....1A
    Número de citas
    0
  • Sin árbitro
    RAD@home Citizen Scientists Uncover Emerging Jet-Galaxy Interactions
    The RAD12 object's recent investigation (Hota et al. 2022), via the RAD@home Astronomy Collaboratory, has provided a streamlined and focused perspective on the complex subject of jet-galaxy interactions, which has always posed a significant challenge for observational confirmation. This emerging field holds increasing significance, providing a
    Hota, Ananda et al.

    Fecha de publicación:

    1
    2024
    Bibcode
    2024asi..confP..76H
    Número de citas
    0
  • Sin árbitro
    A Disc Wind Where You Least Expect It: The Outflow in the Short-period X-ray Binary UW CrB
    Studying outflows of low mass X-ray binaries (LMXBs) is important for understanding the physics of accretion, the evolution of compact binaries, and dynamics of the local interstellar medium. One significant source of these outflows is the accretion disc wind, which can blow away vast amounts of material from the disc before it can be accreted on
    Fijma, Stefanie et al.

    Fecha de publicación:

    5
    2024
    Bibcode
    2024HEAD...2150106F
    Número de citas
    0