A spectroscopic analysis of the G8V star Tau CET

Details A spectroscopic analysis of the G8V star Tau CET A spectroscopic analysis of the G8V star Tau CET

Feb 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...210..211a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 210, no. 1-2, Feb. 1989, p. 211-224.

Astronomy and Astrophysics

Astrophysics

12

G Stars, Spectroscopic Analysis, Stellar Spectra, Stellar Spectrophotometry, Abundance, Metallicity, Signal To Noise Ratios, Stellar Gravitation, Stellar Mass, Stellar Temperature, Thermodynamic Equilibrium

Scientific paper

The physical parameters of Tau Cet are analyzed based on new and high-quality data. The effective temperature is determined to be 5250 + or - 50 K. The discrepancy of the abundance inferred from the Fe I lines with the lowest excitation cannot be explained by errors either in atomic or stellar parameters and implies the need for models incorporating non-LTE and/or a more reliable UV opacity. The obtained abundances for the alpha-particle elements exceed that of the Fe group by 0.2 dex, in complete agreement with previous results for metal-poor dwarfs of the Galactic disk population. The microturbulence value is found to be 1.1 + or - 0.1 km/s. The surface gravity value is determined to be 1.0 + or - 0.3 solar mass.

Affiliated with

Also associated with

No associations

Rating

A spectroscopic analysis of the G8V star Tau CET 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 A spectroscopic analysis of the G8V star Tau CET, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A spectroscopic analysis of the G8V star Tau CET will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1884098