Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...316..771d&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 316, May 15, 1987, p. 771-787. NASA-supported research.
Astronomy and Astrophysics
Astrophysics
21
Infrared Spectra, Radial Velocity, Solar Spectra, Sunlight, Carbon Monoxide, Infrared Spectroscopy, Interferometry, Methane, Solar Wind Velocity
Scientific paper
The authors have measured absolute frequencies for the ΔV = 2 transitions of 12C16O in the 2.3 μm spectrum of integrated sunlight. The data consist of 78 interferograms taken over a 3 yr period with the McMath Fourier transform spectrometer on Kitt Peak. The spectra cover the 4000 - 4800 cm-1 region with 0.012 cm-1 resolution. At a given epoch, the absolute velocity of integrated sunlight were obtained with an uncertainty of ⪉5 m s-1. The authors find that the integrated light velocity varies by ⪉3 m s-1 over a 1 day period, consistent with expectations based on the properties of supergranulation. Over the long term, the data indicate an increasing blueshift in these weak infrared lines, amounting to 30 m s-1 from 1983 through 1985. The sense of the drift is consistent with a lessening in the magnetic inhibition of granular convection at solar minimum.
Brault James W.
Deming Drake
Espenak Fred
Jennings Donald E.
Wagner Jeremy
No associations
LandOfFree
On the apparent velocity of integrated sunlight. I - 1983-1985 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 On the apparent velocity of integrated sunlight. I - 1983-1985, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the apparent velocity of integrated sunlight. I - 1983-1985 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-857071