The 21st Cambridge workshop on Cool Stars, Stellar Systems, and the Sun
Published February 21, 2023 | Version v1
Poster Open

Precise RVs and Stellar Magnetic Field Measurements via Least-Squares Deconvolution

Authors/Creators

  • 1. University of Cambridge

Contributors

Description

To push the radial velocity (RV) exoplanet detection threshold, it is crucial to find more reliable RV extraction methods and to get more reliable activity indicators. Here, we present the Multi-Mask Least-Squares Deconvolution (MM-LSD) RV extraction pipeline and an extension thereof that allows to simultaneously extract a proxy of the unsigned magnetic flux from Zeeman splitting in Stokes I spectra. 

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References

  • Collier Cameron, A., et al., 2019, MNRAS, 487, 1082
  • Donati J. F., Semel M., Carter B. D., Rees D. E., Collier Cameron A., 1997, MNRAS, 291, 658
  • Dumusque X., et al., 2021, A&A, 648, A103
  • Haywood R. D., et al., 2016, MNRAS, 457, 3637
  • Lienhard F., et al., 2022, MNRAS, 513, 5328
  • Mortier A., Faria J. P., Correia C. M., Santerne A.; Santos N. C., 2015, A&A, 573, A101
  • Milbourne T. W., et al., 2019, ApJ, 874, 107