Convective blueshifts in the solar atmosphere

Context. Convective motions in the solar atmosphere cause spectral lines to become asymmetric and shifted in wavelength. For photospheric lines, this differential Doppler shift varies from the solar disk center to the limb. Conclusions. The obtained Doppler shifts of the quiet Sun can serve as an absolute reference for other observations, the relative calibration of Dopplergrams, and the necessary refinement of atmospheric models. Based on this, the development of high-precision models of stellar surface convection will advance the detection of (potentially habitable) exoplanets by radial velocity measurements.

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Author Loehner Boettcher, Johannes Stefan
Schmidt, W.
Schlichenmaier, R.
Steinmetz, T.
Holzwarth, R.
Publisher UCAR/NCAR - Library
Publication Date 2019-04-01T00:00:00
Digital Object Identifier (DOI) Not Assigned
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Topic Category geoscientificInformation
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Metadata Date 2023-08-18T19:17:52.277339
Metadata Record Identifier edu.ucar.opensky::articles:22460
Metadata Language eng; USA
Suggested Citation Loehner Boettcher, Johannes Stefan, Schmidt, W., Schlichenmaier, R., Steinmetz, T., Holzwarth, R.. (2019). Convective blueshifts in the solar atmosphere. UCAR/NCAR - Library. http://n2t.net/ark:/85065/d77947rp. Accessed 11 February 2025.

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