... ARC 3.5m | TripleSpec . ... Fowler sampling, read noise, and minimum integration time . ... The integration time for the slit viewer is adjustable, but 30 seconds represents a maximum practical integration for positioning the source and for guiding. Longer integration times are possible, but the delay between exposures makes guiding and/or positioning the source on the slit tedious. ... Decide on your guider integration time and acquire a frame to serve as the background image with "Expose". ...
... Eric Lindsay: in memoriam The Dark Side of the Universe ARMAGHPLANETARIUM 2 Astronotes January 2007 Is there another Earth? ... The purpose of the mission is to search for Earth-like planets orbiting stars outside our Solar System. ... COROT's first target will be towards Orion" Whilst observing a star, COROT will also be able to detect its mass, age and chemical composition using asteroseismology. ... Dark Energy? ... The Big Bang Universe expands rapidly · Ordinary matter appears stars etc. ...
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Ссылки http://www.armaghplanet.com/pdf/Astronotes/Astronotes2007/Astronotes_Jan_2007.pdf -- 2187.1 Кб -- 20.09.2011 Похожие документы
MINUTES OF THE SIXTY-NINTH MEETING OF THE MANAGEMENT COMMITTEE HELD ON 25 NOVEMBER 2005 AT 10.30 A.M. AT THE OBSERVATORY Present: His Grace, The Lord Eames (Chair), Mrs M. Cruickshank, Mrs Sue Hogg, Sir Kenneth Bloomfield, Archdeacon R. Hoey, Professor J. Dyson and Professor L. Drury Dr F. Byrne, Dr а. Downey, Professor P. Dufton, Professor M. Merrifield and Professor A. Hibbert Professor M. Bailey, Dr T. Mason, and Mr L. Young Apologies: In attendance: 1. ... Signed as a true record of the Meeting .. ...
... We present UV and optical emission line parameters (equivalent widths, fluxes, FWHM, and line positions) for a large number (28) of emission lines including upper limits for undetected lines. ... This gas emits broad permitted emission lines that are distinctive of quasar spectra. ... TABLE 4 Repres enta tive Emission Line Measuremen ts FWHM (km sю1) (2) аvpeak (km sю1) (3) Wk ° (A) (4) Observed Flux (10ю14 ergs cmю2 sю1) (5) Absorption Lines (6) Emission Line (1) 1106+7234oe, z = 0.00880 UV iron .....
Data Flow System Document Title: Document Number: Issue: Date: Document Prepared by: Document Approved by: Document Reviewed by: Document Released by: Peter Bunclark & Simon Hodgkin (CASU) Mike Irwin (CASU Manager) William Sutherland (VISTA Project Scientist) Jim Emerson (VDFS Project leader) VISTA Infra Red Camera Calibration Plan VIS-SPE-IOA-20000-0002 1.4 pre 1 2006-11-13 Signature And date: Signature And date: Signature And date: Signature And date: DATA FLOW Calibration Plan SYSTEM VISTA Document:
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Ссылки http://www.vista.ac.uk/Files/docs/vdfs/Cal-Plan-draft_v1.4.pdf -- 648.5 Кб -- 20.04.2011 Похожие документы
Celestron Forum Message . Forums: . ... Nexstar11GPS Handcontroller Problem . ... I've got a major issue with my scope. I owne it since 2002 and had inital problems (I had to send the scope back due to a clutch problem). ... It would not get correct GPS data. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...
... 2 Measurement of PMTs counting characteristics and selection of op erating p oint To select the operating point of the PMT, that is the optimal values of the high voltage supply and pulse discrimination threshold, the command run counting=hv value is provided in the program mass. ... Starting with the minimum voltage (say 550 V) run command run counting=550 for the measurement execution. ... It is recommended to take measurements for the set of values of 0.4, 0.6, 0.8, 1.0. ...
... Articles on Teaching and Learning Astronomy Learning Astronomy : Insights from Research and Practice -- Cary Sneider (Portland State U.) Teaching Astronomy in the 21st Century -- Cary Sneider (Portland State U.) The Project ASTRO Philosophy (for Astronomy Education) -- Dennis Schatz ( Pacific Science Center ) Education Reform and Science Standards -- Dennis Schatz ( Pacific Science Center ) ... Message to the Universe -- Dennis Schatz (Pacific Science Center) I7. ...
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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Ссылки http://www.stsci.edu/hst/acs/analysis/STECF/isr/isr0602.pdf -- 586.7 Кб -- 02.12.2010
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Ссылки http://www.stecf.org/documents/isr/isr0602.pdf -- 416.5 Кб -- 11.05.2006 Похожие документы
... 85, No. 11, pp. 972985. i The Stellar Population and Evolution of Galaxies of the NGC 80 Group O. K. Silchenko1 and V. L. Afanasiev 1 2 Sternberg Astronomical Institute, Universitetski i pr. ... The bulges of five of the seven galaxies appear to be old, with the average age of the bulge stars being 1015 billion years. Signs of a relatively recent star-formation burst are observed in the small S0 galaxy IC 1548, whose average bulge age is 3 billion years and average core age is 1.5 billion years. ...