J/A+A/525/A74 540-690nm Solar Atlas (Molaro+, 2011)
Ceres' Sunlight Atlas.
Molaro P., Centurion M.
<Astron. Astrophys. 525, A74 (2011)>
=2011A&A...525A..74M 2011A&A...525A..74M
ADC_Keywords: Sun ; Atlases ; Spectroscopy
Keywords: atlases - reference systems - Sun: photosphere - Sun: activity -
stars: atmospheres - planets and satellites: individual: Ceres
Abstract:
Astronomical research dealing with accurate radial velocity
measurements need reliable astronomical standards to calibrate the
spectrographs and to assess possible systematics. Stellar radial
velocity standards offer a reference at the level of a few hundred
m/s and are not adequate for most present needs.
We aim to show that sunlight reflected by asteroids is a fairly
accessible way to record a high-resolution solar spectrum from the
whole disk, which can therefore be used as a radial velocity standard
and can improve the uncertainties of solar line positions.
Description:
The present solar atlas provides with 491 line wavelengths in the
range 540-690nm and 222 lines in the range 400-410nm obtained from
Ceres reflected solar spectrum with HARPS.
For each line the measured wavelength, the errors returned by model
fitting of lines, the Chi square of the fit, and the ion which
originates the line are given.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 35 711 Full line list
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See also:
J/A+A/375/591 : SUMER Spectral Atlas of Solar Disk Features (Curdt+, 2001)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 10 F10.5 0.1nm lambda Solar wavelength
13- 21 F9.6 0.1nm e_lambda rms uncertainty on lambda
23- 28 F6.3 -- chi2 chi square of the fit
32- 35 A4 -- Ion Ion
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Acknowledgements:
Paolo Molaro, molaro(at)oats.inaf.it
(End) Paolo Molaro [INAF-OAT, Italy], Patricia Vannier [CDS] 14-Oct-2010