... To help tie down this scenario, HST time was awarded and in May - June 1997 we will obtain UV photometry of the cluster stars that will enable the temperatures of the turn-off stars to be precisely derived. ...
... Provision of pipeline data reduction and archiving packages is integral to new AAO, HST, ESO's VLT and Gemini instrumentation and is the key reason why data from these telescopes are quickly published, archived and made publicly available within a very ...
... on 0.1 І spatial scales, emission-line surface brightness on 0.1 І spatial scales, how to access on-line HST images to make these assessments, SNR expectations, saturation limits with and without the ND filter and occulting disks, spatial extent of the ...
... Support for this work was provided by NASA through grant number HST-AR-10685.01-A from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555. ...
... For flux calibration a number of standard stars from the HST standards list Persson et al. (1998) and the IRIS standard star list Carter (1995) were used. ...
... Support for this work was provided by NASA through grant number HST-AR-10685.01-A from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555. ...
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Ссылки http://www.mso.anu.edu.au/~kcf/surya/spiralstructure/Seigar06 -- 409.4 Кб -- 22.04.2007 Похожие документы
... Recent, high-resolution studies at optical and radio wavelengths have begun to provide more direct evidence for `nuclear' disks on size-scales ranging from the 100-1000-pc diameter dusty disks imaged by HST Ja e et al., ...