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[ascl:2301.014] LBL: Line-by-line velocity measurements

LBL derives velocity measurements from high-resolution (R>50 000) datasets by accounting for outliers in the spectra data. It is tailored for fiber-fed multi-order spectrographs, both in optical and near-infrared (up to 2.5µm) domains. The domain is split into individual units (lines) and the velocity and its associated uncertainty are measured within each line and combined through a mixture model to allow for the presence of spurious values. In addition to the velocity, other quantities are also derived, the most important being a value (dW) that can be understood (for a Gaussian line) as a change in the line FWHM. These values provide useful stellar activity indicators. LBL works on data from a variety of instruments, including SPIRou, NIRPS, HARPS, and ESPRESSO. The code's output is an rdb table that can be uploaded to the online DACE pRV analysis tool.

Code site:
https://lbl.exoplanets.ca/ https://github.com/njcuk9999/lbl
Used in:
https://ui.adsabs.harvard.edu/abs/2022MNRAS.514.4120G https://ui.adsabs.harvard.edu/abs/2022A%26A...660A..86M
Described in:
https://ui.adsabs.harvard.edu/abs/2022AJ....164...84A
Bibcode:
2023ascl.soft01014A

Views: 947

ascl:2301.014
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