Synthetic CA II infrared triplet lines as a function of stellar parameters

Details Synthetic CA II infrared triplet lines as a function of stellar parameters Synthetic CA II infrared triplet lines as a function of stellar parameters

Publishing date

Jan 1991

URL

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...241..176e&link_type=abstract

Journals

Astronomy and Astrophysics (ISSN 0004-6361), vol. 241, no. 1, Jan. 1991, p. 176-182. Research supported by FAPESP and CNPq.

Science

Astronomy and Astrophysics

Field

Astrophysics

Additional info 2

27

Additional info 3

Calcium, Infrared Spectra, Line Spectra, Stellar Spectra, Giant Stars, Molecular Spectra, Spectrum Analysis

Type

Scientific paper

Abstract

The 830-870 nm spectral region, which includes the Ca II triplet lines, other metal lines, and molecular bands of TiO and CN, is computed for a grid of stellar parameters. The behavior of the so-called CaT feature as a function of stellar effective temperature, gravity and metallicity is studied and compared to previous work. The CaT feature turns out to be very sensitive to metallicity for M/H greater than -2.0; it is also, for the giant stars, sensitive to log g for M/H greater than -1.0. The strength of the CaT feature is insensitive to temperature for the dwarfs, showing some dependence on temperature for giants (log g below 2.5). Therefore, the CaT feature is, for a large range of stellar parameters, a function of metallicity and gravity, in this order of importance. For metal-rich cool giants, the CaT feature is a function of metallicity, gravity and temperature.

Affiliated with

Also associated with

No associations

Rating

Synthetic CA II infrared triplet lines as a function of stellar parameters 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 Synthetic CA II infrared triplet lines as a function of stellar parameters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synthetic CA II infrared triplet lines as a function of stellar parameters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1894579