The Iron Abundance of IOTA Herculis

Details The Iron Abundance of IOTA Herculis The Iron Abundance of IOTA Herculis

Nov 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996pasp..108..953g&link_type=abstract

Publications of the Astronomical Society of the Pacific, v.108, p.953-961

Astronomy and Astrophysics

Astronomy

7

Stars: Abundances, Stars: Individual: Iota Herculis

Scientific paper

We have obtained coadded, high-resolution IUE spectra of Iota Herculis (B3 IV) in both the short-wavelength (SWP) and long-wavelength (LWP) regions. LTE synthetic spectra with a resolution identical to that of IUE were produced with the Kurucz model atmosphere and spectral synthesis codes ATLAS9/SYNTHE. Model parameters were chosen from the literature: Teff=17500 K, log g=3.75, v sin i = 11 km s^-1, and v_turb=0 km s^-1. The abundance indicators were 53 lines of Fe II and 26 lines of Fe III whose atomic parameters have been measured in the laboratory. Using a method that compares synthetic equivalent widths with observed ones, we find that the abundances derived from the different ionization stages are in agreement: both Fe II and Fe III lines yield an abundance of [Fe/H]= -0.47 +/- 0.13 relative to the Sun. A curve of growth analysis yields similar results. Due to our choice of a zero microturbulent velocity these results are upper limits, and we conclude that Iota Herculis is significantly underabundant in iron relative to the sun. (SECTION: Stars)

Affiliated with

Also associated with

No associations

Rating

The Iron Abundance of IOTA Herculis 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 The Iron Abundance of IOTA Herculis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Iron Abundance of IOTA Herculis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1750406