MAMA Bright Object Limits for Astronomical Objects

Details MAMA Bright Object Limits for Astronomical Objects MAMA Bright Object Limits for Astronomical Objects

Sep 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996stis.rept...24l&link_type=abstract

Instrument Science Report STIS 96-024, 14 pages

Physics

Hubble Space Telescope, Hst, Space Telescope Science Institute, Stis, Space Telescope Imaging Spectrograph

Scientific paper

The maximum allowed count rates for the STIS MAMA detectors are converted into magnitudes for a range of stellar energy distributions, using Kurucz model fluxes and observed flux standards. Tables are provided to assist observers in determining the appropriate instrument configuration for their targets. We discuss different classes of objects which can trigger a bright object alert. Both the spectroscopic and the imaging modes are covered. The maximum allowed count rates are reached for relatively faint objects. As a result, in addition to stars, many non-stellar targets, such as emission nebulae, galaxies, or globular clusters are around or above the limiting magnitude.

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