Spectroscopic Determination of Stellar Atmospheric Parameters: Application to Mid-F through Early-K Dwarfs and Subgiants

Details Spectroscopic Determination of Stellar Atmospheric Parameters: Application to Mid-F through Early-K Dwarfs and Subgiants Spectroscopic Determination of Stellar Atmospheric Parameters: Application to Mid-F through Early-K Dwarfs and Subgiants

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002pasj...54.1041t&link_type=abstract

Publications of the Astronomical Society of Japan, Vol.54, No.6, pp.1041-1056

Astronomy and Astrophysics

Astronomy

14

Stars: Abundances, Stars: Atmospheres, Stars: Fundamental Parameters, Stars: Late-Type

Scientific paper

Takeda et al.'s (2002, PASJ, 54, 451) method for the spectroscopic determination of stellar atmospheric parameters (Teff, logg, vt, and [Fe/H]) from the equivalent widths of Fe I and Fe II lines was applied to 32 dwarfs/subgiants of mid-F through early-K types based on high-quality echelle spectra obtained at Okayama Astrophysical Observatory, for the purpose of examining the numerical performance of this technique as well as the precision of the results. The solutions of the parameters were confirmed to successfully converge, except for a few cases (e.g., for lower temperature and lower metallicity stars) where the microturbulent velocity could not be well determined. A comparison of the present results with the literature values, especially those of Fuhrmann (1998, AAA070.155.024), revealed that the agreement is mostly satisfactory, though a systematic tendency appears to exist that our method yields slightly lower (i.e., by ˜ 100 K) Teff values. The results are further discussed in relation to the stellar fundamental parameters (mass, luminosity, etc.), while referring to the Hipparcos parallaxes or theoretical stellar evolutionary tracks.

Affiliated with

Also associated with

No associations

Rating

Spectroscopic Determination of Stellar Atmospheric Parameters: Application to Mid-F through Early-K Dwarfs and Subgiants does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Spectroscopic Determination of Stellar Atmospheric Parameters: Application to Mid-F through Early-K Dwarfs and Subgiants, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectroscopic Determination of Stellar Atmospheric Parameters: Application to Mid-F through Early-K Dwarfs and Subgiants will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1308923