[ascl:2502.020]
IGRINS_RV: Radial velocity pipeline for IGRINS
Stahl, Asa G.;
Tang, Shih-Yun;
Johns-Krull, Christopher M.;
Prato, L.;
Llama, Joe;
Mace, Gregory N.;
Joon Lee, Jae;
Oh, Heeyoung;
Luna, Jessica;
Jaffe, Daniel T.
IGRINS RV extracts radial velocities (RVs) from spectra taken with the Immersion GRating INfrared Spectrometer (IGRINS). It uses a modified forward modeling technique that leverages telluric absorption lines as a common-path wavelength calibrator. IGRINS RV achieves an RV precision in the H and K bands of around 25-30 m/s for narrow-line stars.