... The disc accretion process is an essential component of star and planet formation theories. ... Much of the detailed knowledge of the physical processes involved in disc accretion have been gained through observations of nearby ( Z ) of the local environment are thought to affect PMS disc accretion rates, and disc evolutionary timescales. ... I measure the accretion rates of these PMS stars using the intensities of the U /H band excess measured through either optical spectra or imaging. ...
. Home . Structure of Data . Description . Catalog . Publications . VO . ЮБ 2000 . 00:23:40.0 . ЮД 2000 . +62:42:14 . l . 119.754 . b . 0.004 . diameter . 4.0' . (m - M) 0 . 11.02 0.36 . distance . 1600 290 pc . E(B - V) . 0.27 0.18 . log(t) . (J, J-H) isochrone VOTable . 2MASS data VOTable . IPHAS IDR data VOTable . Developed by the Team . Send us your questions or feedback
The Astronomy Net . Articles | ... Forums . ... Planets | ... The list below is a live snapshot of where the planets and moon are located right now. ... The links in the left hand column take you to a mirror of the excellent NinePlanets web site where you can read about each planet and much much more. The latest news includes the fact that Pluto is no longer classified as a planet. ... Pluto is now classified as a 'dwarf planet' which includes Ceres and soon to be many others. ... 100 . ...
... The versatile and efficient INVERTOSCOPE? combines the highest optical performance with unsurpassed mechanical quality, and is backed by LOMO's unique lifetime warranty, the most comprehensive in the industry. ... A 15X focusing eyepiece with two interchangeable reticles (a 10mm/100div scale and a 10mm x 10mm/400sq grid) for convenient measuring and counting. ... A set of stage inserts and extension plates to accommodate a variety of sample vessels such as Petri dishes, flasks, microtest plates, etc...
... RJMCMC Similar to Richardson Green 1997 Knowledge of the PSF makes things easier Insensitive to e.g. posterior for ten sources with = 3: Number of Components 9 10 11 12 0.141 0.222 0.220 0.157 0.022 0.029 0.027 0.021 Mean SD 7 0.029 0.018 8 0.058 0.019 13 0.082 0.014 Simulated Data Source region (2 SD) is about 28% of the area and contains about 41% of the observations Positions (-2, 0), (0, 1), (1.5, 0) with intensities ... Approximate the number of sources (2 in this case) 2. ...
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Ссылки http://hea-www.harvard.edu/AstroStat/Stat310_1213/dj_20130416.pdf -- 547.5 Кб -- 16.04.2013 Похожие документы
... Data It is now clear that fuzzballs are actually galaxies. ... Using the automatic telescope, we measured the redshifts and brightnesses of a large number of fuzzballs in all regions of the sky. ... Correlation between brightness and redshift Redshifts and Brightnesses 0.005 0.004 0.003 0.002 0.001 0 -0.001 0 -0.002 -0.003 -0.004 -0.005 Redshift of Fuzzball 500 1000 1500 2000 Brightness of Fuzzball The brightnesses and redshifts of all the fuzzballs measured are shown in this graph. ...
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Ссылки http://www.mso.anu.edu.au/pfrancis/roleplay/ziggy/model_answer3.pdf -- 63.3 Кб -- 27.06.2002 Похожие документы
... This paper presents an overview of the CENTERFIT image centering algorithm library currently under development in the IRAF system. ... The centering algorithms employed by these applications must satisfy a wide range of efficiency and accuracy requirements, and function robustly on data sets spanning a broad wavelength, resolution, and signal-to-noise regime. This paper presents an overview of CENTERFIT, a library of 1-D and 2-D centering algorithms currently under development in the IRAF system. ...
... Here is a sample parameter file that is set to plot the B filter trace data. ... One can generally get by with the default graph parameters. input = B.a list of images or list files to be graphed (wx1 = 3000.) left world x-coord if not autoscaling ... autoscaling (wy2 = 100.) upper world y-coord if not autoscaling (wcs = logical ) Coordinate system for images (axis = 1) axis along which projection is to be taken (transpose = no) transpose the x and y axes of the plot (pointmode = no) ...
Next: ST-ECF Grism Spectrum Software Up: NICMOS Data Calibration and Previous: Photometric Performance of NICMOS . ... Wavelength Calibration of NICMOS Grisms . ... This article describes the wavelength and throughput calibration of the grisms and discusses the photometric performance of the NICMOS grism mode. ... The resolution of the first order spectra on all grisms is about 200 per pixel. ... Spectra were extracted for bright objects with both first and second order spectra on single grism images. ...
... NASA research confirms it's a small world, after all . Using space measurement tools and a new data calculation technique, scientists detected no statistically significant expansion of the solid Earth. ... A NASA-led research team has confirmed what Walt Disney told us all along: Earth really is a small world, after all. ... That was the prevailing belief until scientists developed the theory of plate tectonics, which explained the large-scale motions of Earthт??s lithosphere, or outermost shell. ...
... ASP Conference Series . ... Unveiling Black Holes in a Supernova Cauldron . ... In the next year, observations of a distant, newly discovered supernova may provide us an opportunity to identify a black hole in the debris of such a stellar explosion. ... Here we focus on the formation of a stellar-mass black hole in the explosion of an evolved massive star, a supernova. ... Can we hope that at some stage the presence of the black hole in the aftermath of the supernova explosion will be unveiled? ...
September 2006 ASTRONOTES Incorporating FRIENDS' NEWSLETTER Record-breaking Relaunch Antarctica's Stardust Memories Martian Muddle Sizing up Space Puzzling Planemos ARMAGHPLANETARIUM 2 Astronotes September 2006 Record-Breaking Relaunch By Julie Thompson, Digital Theatre Manager Our relaunch has been a terrific success. ... This is a phenomenal relaunch after being closed for six years. ... Effectively, thanks to this downfall of space-stuff, the Earth's mass is increasing as time goes by. ...
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Ссылки http://www.armaghplanet.com/pdf/Astronotes/Astronotes2006/Astronotes_Sept_2006.pdf -- 2298.9 Кб -- 20.09.2011 Похожие документы
October 14, 2010 ================ CDK125 and Nikon D3s Exposure of 0.002 seconds at ISO 1600 nikon_1287101663_moon_0p002s_1600iso.jpg was taken at Fri, 15 Oct 2010 00:14:23 GMT You can convert any unix time stamp to GMT (UTC) at this website: http://www.onlineconversion.com/unix_time.htm
... 5-GHz total flux density . ... VLBApls image at 5 GHz . color gif | contour gif | ... Correlated flux density (Jy) vs. projected baseline length plot . gif | ... flux density (Jy) . EW position (mas) . ... major axis (mas) . minor axis (mas) . position angle ( ) . ... 1.4 . ... A source-specific comment is given in the VLBApls paper. VLBApls reference: Fomalont et al. 2000), ApJS, 131, 95-183 . VLBApls home page . Last modified: 17 Oct 2000 ...
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
... GRIN lenses for telecommunication optics applications ? GTC (gradient telecom) lenses. ... GTC lenses are used in different fiber-optic devices: collimators, couplers, isolators and WDM etc . ... 2.Diameter . GTC lenses diameters are 1.0 mm, 1.8 mm, 3.0 mm and 4.0mm. ... 1.0 mm -3.0 mm diam GTC lenses are supplied in 0.22P, 0.23P, 0.25P, 0.27P and 0.29P length. 4.0 mm diam GTC lenses are supplied in 0.11P length. ... GTC . ... 3 scratches with 5mkm max width and 200mkm max length are allowed . ...
... ISC Kosmotras . ... Comments, Opinions Publications Dnepr Program . Dnepr launch record 17 August 2011. Cluster Launch of Dnepr LV 22 August 2013 KOMPSAT-5 Launch 21 November 2013. Dnepr Cluster Mission 2013 19 June 2014. Dnepr Cluster Mission 2014 6 November 2014. ... Baikonur Cosmodrome Yasny launch base Downloads . ... Following expeditious telemetry data processing, injection accuracy of five RapidEye satellites launched on 29.08.2008 from Baikonur Cosmodrome was calculated. ...