SolAster: 'Sun-as-a-star' radial velocity variations
Abstract
SolAster provides querying, analysis, and calculation methods to independently derive 'sun-as-a-star' RV variations using SDO/HMI data for any time span since SDO has begun observing. Scaling factors are provided in order to calculate RVs comparable to magnitudes measured by ground-based spectrographs (HARPS-N and NEID). In addition, there are routines to calculate magnetic observables to compare with RV variations and determine what is driving Solar activity.
- Publication:
-
Astrophysics Source Code Library
- Pub Date:
- July 2022
- Bibcode:
- 2022ascl.soft07009E
- Keywords:
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- Software;
- NASA;
- SDO