VizieR Online Data Catalog: HIRES, PEPSI & TRES radial velocities of V1298 Tau (Johnson+, 2022)

We observed a partial transit of V1298 Tau b on 2019 October 24 UT with the 10m Keck I telescope on Maunakea, Hawaii, USA, and the High Resolution Echelle Spectrometer (HIRES) spectrograph. We used the C2 decker, with a slit of 0.861" width and 14.0" height, yielding a resolving power of R~60000. The spectra span from 3646 to 7984Å, although the velocities are derived from the 5000-6000Å region.

We observed the same transit with the Potsdam Echelle Polarimetric and Spectroscopic Instrument (PEPSI) at the 2x8.4m Large Binocular Telescope (LBT) on Mount Graham, Arizona, USA. We used PEPSI's R=120000 mode and cross-dispersers III and V (covering 4800-5441Å and 6278-7419Å).

We obtained 21 epochs of observations of V1298 Tau using the Tillinghast Reflector Echelle Spectrograph (TRES) on the 1.5m telescope at the Fred Lawrence Whipple Observatory (FLWO), Arizona, USA. Nine epochs were obtained over the two weeks prior to the transit event on 24 October 2019 UT, and 12 were obtained on the night of the transit. TRES is a fiber-fed echelle with a spectral resolving power of R~44000 over the wavelength range 3850-9100Å.

(1 data file).