... Spectral Filters . Quantum Efficiency and Exposure Limits . ... Which Instrument to Use: WFPC2, ACS, NICMOS, or STIS? Comparison of WFPC2 and ACS . Comparison of WFPC2 and NICMOS . Comparison of WFPC2 and STIS . History of WFPC2 . ... WFPC2 . ... What's New in Version 5.0 for Cycle 10 . ... WFPC2 Handbook on the WWW . ... Calibration Channel . ... LRF Photometric Calibration . ... Sources of Dark Current . ... Calibration Plan Summary . Cycle 4 Calibration Plan . ...
ST-ECF Instrument Science Report ACS-2006-02 Wavelength and Flux calibration of the ACS/SBC PR110L and PR130L prisms S. S. Larsen, February 2006 ABSTRACT Wavelength- and flux calibrations are presented for the ACS/SBC PR110L and PR130L slitless spectroscopy modes. ... Wavelength. ... Flux calibration Figure 5: Comparison of sensitivity functions for the SBC prisms derived from the inorbit calibration (solid curves) and the ground calibration from Bohlin et al. 2000 (dashed curves). ...
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THE ASTRONOMICAL JOURNAL, 116 : 1009 х1038, 1998 September ( 1998. The American Astronomical Society. All rights reserved. Printed in U.S.A. OBSERVATIONAL EVIDENCE FROM SUPERNOVAE FOR AN ACCELERATING UNIVERSE AND A COSMOLOGICAL CONSTANT ADAM G. RIESS,1 ALEXEI PETER M. GARNAVICH,2 B. LEIBUNDGUT,6 M. R. V. FILIPPENKO,1 PETER CHALLIS,2 ALEJANDRO CLOCCHIATTI,3 ALAN DIERCKS,4 RON L. GILLILAND,5 CRAIG J. HOGAN,4 SAURABH JHA,2 ROBERT P. KIRSHNER,2 M. PHILLIPS,7 DAVID REISS,4 BRIAN P. SCHMIDT,8,9 ROBERT A.
... Complex astrophysical phenomena could now be studied spectroscopically: the X-ray absorption line forest intrinsic to Seyfert galaxies; the interaction between AGN jets and intracluster media; hot winds of starburst galaxies; stellar coronal plasmas; the charge -exchange emission of Mars' exosphere; the X-ray irradiation of protoplanetary disks; and the myst erious flat-topped spectral line shapes of O star winds. ... We estimate that Gen-X will be able to detect and resolve 20, 000 stars in NGC...