... ACS Data Handbook > Chapter 4: ACS Data Processing Considerations > 4.6 ACS/WFC CCD Detector Charge Transfer Efficiency (CTE) . ... ACS/WFC CCD Detector Charge Transfer Efficiency (CTE) . ... 4.6.3 Improving CTE: Post-Observation Image Restoration . ... The ACS/WFC CCD detectors operate by the simple process of converting incoming photons into electron/hole pairs, collecting the electrons in each pixel, and then transferring those electrons across the detector array during the device readout. ...
ST-ECF Instrument Science Report ACS 2003-001 The in-orbit wavelength calibration of the WFC G800L grism A. Pasquali, N. Pirzkal, J.R. Walsh March 5, 2003 ABSTRACT We present the G800L grism spectra of the Wolf-Rayet stars WR45 and WR96 acquired with the Wide Field Channel during the Servicing Mission Orbital Verification (SMOV) tests and the early Cycle 11 INTERIM calibration programme. ... The grism 1st order spectra of WR45 (left) and WR96 (right) are shown in Figure 6. ...
... 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...
CORES OR CUSPS IN ELLIPTICAL GALAXIES: LUMINOSITY OR ENVIRONMENT? ... The low lumi nosity disky galaxies have `hard' cores with a steep slope in the luminosity profile at small radii, whereas the luminous galaxies have `soft' cores with flat profiles at small radii (e.g. Faber et al. ... Coma Cluster cores In the gas/stellar continuum paradigm, one would expect that in the outer parts of a cluster it is more likely that the last merger was gaseous than in its central regions. ...
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.
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... Some of these commands are L A T E X macros, while oth ers belong to plain T E X; no attempt to differen tiate them is made. ``/ --- ordinary space after period. ``! --- negative thin space = \Gamma 1 6 quad; xx``!x yields xxx (math mode). ``'' makes an umlaut, as Ёo. ``# prints a pound sign: #. ``$ prints a dollar sign: $. ``% prints a percent sign: %. ``& prints an ampersand: &. ``' in tabbing environment moves current column to the right of the previous column. ... math mode). ``phi is OE. ...