Insensitivity of solar p-mode frequencies to changes in the helium abundance

Details Insensitivity of solar p-mode frequencies to changes in the helium abundance Insensitivity of solar p-mode frequencies to changes in the helium abundance

Apr 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...327..993g&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 327, April 15, 1988, p. 993-997.

Other

12

Abundance, Acoustic Velocity, Helium, Molecular Weight, Solar Interior, Solar Oscillations, Equations Of State, Heavy Elements, Perturbation Theory, Stellar Evolution, Vibrational Spectra

Scientific paper

P-mode oscillation spectra (l = 0-4; n = 12-30) were calculated for three solar models with helium mass fractions Y = 0.230, 0.235, and 0.240. The solar models were tuned to have the Sun's radius and luminosity by adjusting both the age and the ratio of the mixing length to pressure scale height parameter. The models were identically constrained in all other respects. A 4 percent change in the mass fraction of helium produces less than a 0.1 percent change in the frequencies of the low degree p-modes. This result implies that it will be very difficult to determine the helium abundance of the sun directly from the p-mode oscillation spectrum since the frequencies of the modes are relatively insensitive to changes in the helium abundance.

Affiliated with

Also associated with

No associations

Rating

Insensitivity of solar p-mode frequencies to changes in the helium abundance 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 Insensitivity of solar p-mode frequencies to changes in the helium abundance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Insensitivity of solar p-mode frequencies to changes in the helium abundance will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-848091