... The aim of the present project is to extend covrage to Cepheids within the Coma cluster. ... If Coma lies at a distance of 100 Mpc ( (m-M)=35.0), then long-period Cepheids (P~50 days) have mean apparent magnitudes of V ...
... Coma Cluster) The WF/PC-2 and the Space Telescope Imaging Spectrograph (CCD) was used to observe the vigorously star forming galaxy NGC 4911 that provides a spectacular example of a luminous spiral on its first passage through the hot intracluster medium ...
... 14182 . Thomas H. Puzia, Pontificia Universidad Catolica de Chile . The Coma Cluster Core Project . 14192 . ... Lunar and Planetary Laboratory) noted that Scheila had sprouted a coma halo in observations taken by the Catalina Sky Survey ...
... The phase retrieval software fits the PSF to an anylitical model and determines important optical characteristics of the data such as focus, coma, astigmatism and cold mask offset. ...
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Ссылки http://www.stsci.edu/hst/nicmos/documents/isrs/isr_2003-004.pdf -- 36.0 Кб -- 19.11.2007 Похожие документы
... For n = 4 to 8, an Zn are given below: a4Z4= a5Z5= a6Z6= a7Z7= a8Z8= 3.89(r 2.31(r 2.31(r 8.33(r 8.33(r 2 2 2 3 3 -0.55445) cos(2)) sin(2)) -0.673796r)cos -0.673796r)sin focus 0є astigmatism 45є astigmatism X coma Y coma For HST, focus c4 = 0.0061 · Sec. ...
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Ссылки http://www.stsci.edu/smov/SMOV4%20WEB%20PAGE%20OCT2007/smov4notes/MirrorMove2009ML08JUL09.pdf -- 1414.4 Кб -- 13.07.2009 Похожие документы
... unfilled dark halos this WF camera ь first generation of stars &below a Gpx IMF ь forming stellar halos by accretion · H0 : Cepheids in Coma + SNIa zeropoint ь ь w is also an LSST H/H ~ 2% with SIM recalibration goal with Planck, constrain the dark energy ...
... Sawchuck (1972, 1973, 1974), Robbins (1970), and Robbins and Huang (1972) found that for certain problems (coma-like aberrations and motion blur), the image plane could be remapped so that the space-variant problem could be exactly transformed into a ...
... Send the comA pleted Phase I proposal L TEX template file to the STScI by e-mail to the account named newprop, before the deadline for electronic submission. ...
... imaging approach 10833 Host Galaxies of Reverberation Mapped AGNs 10842 A Cepheid Distance to the Coma Cluster 10861 An ACS Treasury Survey of the Coma cluster of galaxies 10862 Comprehensive Auroral Imaging of Jupiter and Saturn during the International ...