Download Published Version (PDF / 4MB).pdf

MNRAS-2016-Berdias-3551-64.pdf
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🔗 Source: oro.open.ac.uk
📊 Size: 4.38 MB
📄 Pages: 14 pages
⬇️ Downloads: 200

Summary

Researchers analyzed high-cadence spectroscopy of M dwarfs using HARPS-N, focusing on systematic effects in line profile measurements of the binary GJ 725A+B. They found changes in the spectral energy distribution correlated with instrumental line profile width and Doppler measurements, likely caused by flux losses at the fiber input. Inefficient fitting of the continuum was identified as the source of systematic variability in the full width at half-maximum. The study suggests using forward modeling techniques to measure line profile moments for higher accuracy, and notes that remaining residual variability at ~1 m s−1 may have an instrumental origin.

Description

Researchers analyzed high-cadence spectroscopy of M dwarfs using HARPS-N, focusing on systematic effects in line profile measurements of the binary GJ 725A+B.

Technical Information

  • File Format: PDF
  • File Size: 4.38 MB
  • Pages: 14
  • Language: EN
  • Total Downloads: 200
  • Last Updated: 1 month ago

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