ACS Grism/Prism Performace Check

Details ACS Grism/Prism Performace Check ACS Grism/Prism Performace Check

Jul 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001hst..prop.9029p&link_type=abstract

HST Proposal ID #9029

Physics

Hst Proposal Id #9029

Scientific paper

A Wolf-Rayet star and a White Dwarf are observed through the grism of both the Wide Field and the High Resolution Channels to measure: 1} the dispersion of the grism and its field dependence; 2} the grism throughput and its field dependence; 3} the frequency of the flat field variation {L-flat} as a function of wavelength; 4} the fringe pattern at longer wavelengths as a function of position on the chip. Therefore, these measurements will be carried out at several positions on the chip including the centre and the corners of the WFC and HRC chips. Since subarrays are used, this programme must be executed after the ACS has been properly aligned to the FGS reference system, i.e. after execution of programme 9011 and subsequent updates.

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