VizieR Online Data Catalog: Convective blueshifts in solar atmos. (Loehner-Boettcher+, 2019)

Solar spectra were observed in eight different spectral regions (525nm, 538nm, 543nm, 557nm, 589nm, 614nm, 617nm, 630nm) with the Laser Absolute Reference Spectrograph (LARS) at the VTT on Tenerife. The observations were performed at different heliocentric position mu=cos(alpha) from disk center (mu=1.0) to near the solar limb (mu=0.3,0.2). These 20min-time-averaged observations were performed along four radial axes (north, south, east, west). The calibration of the solar spectra with a laser frequency comb results in an absolute wavelength scale with an Doppler accuracy of 1m/s. The spectra were recorded with the spectrographs (resolution greater than 700000) CCD camera.

Vacuum Tower Telescope (VTT), Laser Absolute Reference Spectrograph (LARS), May 2016 to May 2018.

IF Integrated sunlight of 10arcsec field of view AND Spectral resolution greater than 700000, Temporal average over 20min at the respective heliocentric position mu.

FITS files contain the average solar spectrum in the same form throughout: *: 2048 pixel, dimension [*,0]: spectral intensity, dimension [*,1]: standard deviation, dimension [*,2]: absolute wavelength in Angstroem.

Data naming includes the instrument, date, time, spectral region, heliocentric position mu, and abbreviated radial axis (except at disk center)

(2 data files).