GHRS n1 and G140L Sensitivity - 4

Details GHRS n1 and G140L Sensitivity - 4 GHRS n1 and G140L Sensitivity - 4

Jul 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994hst..prop.5278e&link_type=abstract

HST Proposal ID #5278

Physics

Hst Proposal Id #5278 Calibration

Scientific paper

This proposal defines observations to be carried out in the cycle 4 calibration program to verify use of GHRS mirror N1 for target acquisition, and to reestablish the sensitivity calibration for low resolution grating G140L. We use the UV standard star BD+28d4211, perform target acquisitions with mirror N1, and record the spectra with grating G140L at central wavelengths of 1200, 1400, 1600 and 1800 A. The exposure times are long enough to provide approximately 1000 cts per diode in each of four spectral bins at most wavelengths. Spectra are taken with both the LSA and the SSA.

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