5 papers
Verifying the STIS Time Dependent Sensitivity Trends with the Primary CALSPEC Standards
Daniel Stapleton, Svea Hernandez
The STIS team monitors the time dependent sensitivity (TDS) of each grating with one from a set of three secondary CALSPEC standard stars: GRW+70D5824, AGK+81D266, and BD+28D4211.…
Rederivation of STIS Secondary Echelle Mode Traces
Matthew R. Siebert, TalaWanda Monroe, Svea Hernandez
The STIS echelle gratings can be used with a variety of different central wavelength settings. "Secondary" wavelength settings, designed to cover select absorption or emission line…
Recalibration of Pre-SM4 STIS Echelle Throughputs
Matthew R. Siebert, Joleen K. Carlberg, Svea Hernandez +1
Recent improvements to stellar atmospheric models have merited updated flux calibration for high priority STIS observing modes. Specifically, in the FUV and NUV, continuum differen…
Updating the Sensitivity Curves of the STIS Echelles (Post-SM4)
Svea Hernandez, TalaWanda Monroe, Joleen K. Carlberg
The STIS team re-derived on-orbit sensitivity curves for the echelle modes for post-servicing mission 4 observations using the standard DA white dwarf G 191-B2B. These new updates…
Updated Sensitivities of the Five STIS L-mode Gratings
Amy M. Jones, Svea Hernandez, Joleen K. Carlberg +1
Re-derivation of the sensitivities of all of the Space Telescope Imaging Spectrograph (STIS) observing modes were required after major updates were introduced to the model atmosphe…