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.
Bibliographical reference

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

Advertised on:
12
2004
Number of authors
4
IAC number of authors
0
Citations
0
Refereed citations
0
Description
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.
Type
Non-refereed

It may interest you

  • Non-refereed
    Identification of Superclusters and their Properties in the Sloan Digital Sky Survey
    Superclusters are the largest massive structures in the cosmic web on tens to hundreds of megaparsecs (Mpc) scales. They are the largest assembly of galaxy clusters in the Universe. Apart from a few detailed studies of such structures, their evolutionary mechanism is still an open question. In order to address and answer the relevant questions, a
    Sankhyayan, Shishir et al.

    Advertised on:

    1
    2024
    Bibcode
    2024asi..confP..81S
    Citations
    0
  • Non-refereed
    Rapid multiwavelength variability reveals jet emission in the black hole binary V404 Cygni in quiescence
    Spitzer Space Telescope observations of several quiescent black hole low mass X-ray binaries (LMXBs) have shown mid-infrared excesses above the emission of a companion star. The excess has been proposed to originate from either a relativistic jet or circumbinary disk. If the mid-IR originates in a jet, then it probes the region closest to the black
    Borowski, Eric et al.

    Advertised on:

    5
    2024
    Bibcode
    2024HEAD...2130105B
    Citations
    0
  • Non-refereed
    KIC 9163796 - Age determination by asteroseismic grid modelling for an oscillating red giant binary
    The age of a star cannot be measured but only inferred from observational quantities related to age. A wellknown stellar age greatly impacts our understanding of evolution on much larger scales, such as exoplanetary systems or the history of the Milky Way. For stars in the red-giant phase, comparison of observations with evolutionary models
    Grossmann, D. H. et al.

    Advertised on:

    3
    2024
    Bibcode
    2024aecc.conf....7G
    Citations
    0