Ca II K 1-A Emission Index Composites

Luca Bertello; Andrew R. Marble; Alexei A. Pevtsov

Ca II K 1-A Emission Index Composites

Solar and Stellar Astrophysics 2017-02-06 v1

Authors: Luca Bertello , Andrew R. Marble , Alexei A. Pevtsov

Abstract

We describe here a procedure to combine measurements in the 393.37 nm Ca II K spectral line taken at different observatories. Measurements from the National Solar Observatory (NSO) Integrated Sunlight Spectrometer (ISS) on the Synoptic Optical Long-term Investigations of the Sun (SOLIS) telescope, the NSO/Sac Peak Ca II K-Line Monitoring Program, and Ca II K filtergrams from Kodaikanal Solar Observatory (KKL) are merged together to create a pair of composites of the Ca II K 1-A emission index. These composites are publicly available from the SOLIS website at http://solis.nso.edu/0/iss/.

Keywords

solar instrument calibration

Cite

@article{arxiv.1702.00838,
  title  = {Ca II K 1-A Emission Index Composites},
  author = {Luca Bertello and Andrew R. Marble and Alexei A. Pevtsov},
  journal= {arXiv preprint arXiv:1702.00838},
  year   = {2017}
}

Comments

11 pages, 9 figures. Technical Report:NSO/NISP-2017-001

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