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http://www.stsci.edu/instrument-news/handbooks/wfpc2/W2_69.html.
http://www.stsci.edu/instrument-news/handbooks/wfpc2/W2_69.html.
1. Observing Faint Targets
Observation Strategies . For broad band filters the sky background will limit the detection of faint targets. ... See Table 6.3 on page 113 for sky level as function of ecliptic coordinates.) If these higher sky levels would severely impact the science data, observers should consider specifying the special requirement LOW-SKY on the Phase II proposal. ... Scattering of bright Earth light in the OTA can produce non-uniformities in the background which may hamper analysis of faint target images. ...
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Ссылки http://www.stsci.edu/instrument-news/handbooks/wfpc2/W2_67.html -- 4.7 Кб -- 24.07.1996
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2. http://www.stsci.edu/hst/acs/documents/isrs/isr0103.pdf
ST-ECF Instrument Science Report ACS 2001-003 ACS Grism Simulations using SLIM 1.0 N. Pirzkal, A. Pasquali, J. R. Walsh, R. N. Hook, W. Freudling, R. Albrecht, R.A.E. Fosbury April 4, 2001 ABSTRACT We introduce SLIM, a slitless spectroscopy simulator written in Python which can be used to simulate the ACS grism and prism modes. ... We have thus developed a simulator called SLIM which is able to disperse an input spectrum in a well-controlled manner. ... Can simulate multiple order grism observations. ...
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Ссылки http://www.stsci.edu/hst/acs/documents/isrs/isr0103.pdf -- 278.5 Кб -- 08.01.2007
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3. http://www.stsci.edu/~dejong/gzip/proc184.ps.gz
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. ...
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Ссылки http://www.stsci.edu/~dejong/gzip/proc184.ps.gz -- 26.2 Кб -- 18.12.2007
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4. http://www.stsci.edu/~marel/decadal/sc/352.pdf
... 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...
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Ссылки http://www.stsci.edu/~marel/decadal/sc/352.pdf -- 434.2 Кб -- 20.02.2009
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5. http://www.stsci.edu/~mutchler/documents/ASP_Ceres_Pluto.pdf
... 70 · Winter 2007 www.astrosociety.org/uitc © 2007, Astronomical Society of the Pacific 390 Ashton Avenue, San Francisco, CA 94112 Hubble Observations of Ceres and Pluto: A Closer Look at the "Ugly Ducklings" of the Solar System by Max Mutchler Space Telescope Science Institute Introduction regret that my 4th Grade teacher, Mrs. Hadley, doesn't know that she provided me with the very first astronomy book that I ever read, because it had a profound impact on me. ... Planet count 7 6 7 11 12 13 8 9 9? ...
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Ссылки http://www.stsci.edu/~mutchler/documents/ASP_Ceres_Pluto.pdf -- 2511.9 Кб -- 19.02.2007
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6. http://www.stsci.edu/~ariess/documents/1998.pdf
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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Ссылки http://www.stsci.edu/~ariess/documents/1998.pdf -- 1319.8 Кб -- 26.07.2007
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