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1. PAUL J. GREEN - Contributing ConcepTests
I'm glad you're interested in collaborating on the ConcepTests for Astronomy WWW database project! ... I'm looking forward to your contributions! ... a) high luminosity, high temperature to low luminosity, low temperature . b) high luminosity, low temperature to low luminosity, low temperature . c) high luminosity, low temperature to low luminosity, high temperature . d) high luminosity, high temperature to low luminosity high temperature. ... Back to Paul Green's Peer Instruction page. ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/~pgreen/educ/Contrib_oct01.html -- 8.4 Кб -- 01.10.2012
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2. Contributions by amateurs: SN1996X.
... The Observatory, the cupola of which is 480 cm wide, is equipped with a Ritchey-Cretien 500 mm f/7.5 telescope, a 200 mm f/7.5 guide telescope, and a 250 mm f/13 Baker-Schmidt, a ST4 and a ST6 CCD cameras and four computers. ... Up until now we have archived about 600 images from the first observation, and 100 from the second, thanks to the automatic telescope aiming control program written by Vairo Risoldi. ... A.Nakamura, Japan, took CCD image of NGC5775. ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/mirrors/isn/1996ae.htm -- 6.8 Кб -- 02.02.2012
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3. Australia Telescope National Facility
... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Astrophysics graduate student programs . ... Facilities . ATNF facilities . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ...
[ Сохраненная копия ]  Ссылки http://www.atnf.csiro.au/whats_on/workshops/synthesis2003/talks/sensitivity/tsys.html -- 49.3 Кб -- 12.04.2016
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4. Sky Background
... The sky background can contribute significant Poisson noise in broad and medium band filters, and must be taken into account during noise calculations. The actual sky brightness depends on the heliocentric ecliptic coordinates (latitude and longitude) in a manner summarized in Table 6.3 . ... For many targets LOW-SKY will have minimal impact on the observing efficiency. ... Table 6.4 shows approximate sky count rates for the WFC and PC1 for filters with significant sky count rates. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/instrument-news/handbooks/wfpc2/W2_60.html -- 4.5 Кб -- 24.07.1996
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5. Conference Contributions
... We have observed and studied critical supercurrents, Ic, in cross-type Nb-Cu/Ni-Nb junctions with Josephson layers prepared from diluted ferromagnetic alloys. For suitable values of the exchange energy in the ferromagnet and the F-layer thickness we have observed Ic(T) oscillation with vanishing Ic for the definite values of T and dF. ... Critical supercurrents, Ic, in Nb-Cu(1-x)Ni(x)-Nb Josephson SFS junctions with F-layers prepared from ferromagnetic Cu(1-x)Ni(x) alloys have been studied. ...
[ Сохраненная копия ]  Ссылки http://www.issp.ac.ru/ls/HTM/conferences.HTM -- 3.7 Кб -- 17.03.2001
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6. ESO - cosmology2002
... Science . ... Science Users Information > Science and Technical Meetings > Conferences 2002 > cosmology2002 . ... Observing with ESO Telescopes . ... Public Surveys . ... Data Handling and Products . ... Science Data Products Forum . ... ESO Data . ... ESO Data Access Policy . ... Review: Weak Lensing . ... Tangential alignement of galaxies in a STIS Parallel shear survey field: a new dark lens candidate . ... Poster: . ... New Clues on clustering evolution from the K20 and FIRES surveys . ... data ...
[ Сохраненная копия ]  Ссылки http://www.eso.org/sci/meetings/2002/cosmology2002.html -- 34.8 Кб -- 10.04.2016
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7. http://www.naic.edu/~astro/School/Talks/large_pdf/salter_meas_2.pdf
The NAIC-NRAO School on Single-Dish Radio Astronomy Techniques and Applications -- July 2005 The Measurement Process with Fully-Filled Apertures Chris Salter (NAIC) Accuracy in Radio Astronomy · Pulsar Periods: 1 part in 1012 · HI Redshifts: For z 0.1, about 1 part in 104 · Source Intensities and Polarization Parameters: Typically ±10% 1 Basic Definitions A: Intensit y/Surface Brightness: B: Brightness Temperature : 2 C: Flux Densit y D: Distance Dependencies 3 The ...
[ Текст ]  Ссылки http://www.naic.edu/~astro/School/Talks/large_pdf/salter_meas_2.pdf -- 1307.3 Кб -- 12.07.2005
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8. http://zebu.uoregon.edu/tandf/toc.html
... 2.3 Establishing the Extragalactic Distance Scale . ... 2.3.2 The Second Rung: Distances to stellar clusters . ... 2.3.4 Distances to Local Group Galaxies . ... The Luminosity Function of Planetary Nebulae . ... 3.2.2 Clusters of Galaxies . ... 4.2 Evidence for Dark Matter as a Function of Scale Size . ... 4.3 Other Dark Matter Indicators for Galaxies . ... What is the nature of the large-scale distribution of matter in the universe as traced by the three-dimensional galaxy distribution? ...
[ Сохраненная копия ]  Ссылки http://zebu.uoregon.edu/tandf/toc.html -- 10.7 Кб -- 17.07.1998
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9. Is there any way photons could contribute to the mysterious dark matter? |
... Tonight's Sky . ... Sky this Month . ... milky way . ... The Sky This Week: April 1 - 10 . ... Sky this Week . ... Astronomy for Kids . ... Sky Events . Get to Know the Night Sky . ... Is there any way photons could contribute to the mysterious dark matter? ... Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...
[ Сохраненная копия ]  Ссылки http://www.astronomy.com/magazine/ask-astro/2006/09/is-there-any-way-photons-could-contribute-to-the-mysterious-dark-matter -- 62.9 Кб -- 10.04.2016
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10. Astrophysics Group STFC announces бе119 million contribution to The Square
... Astrophysics Group . ... STFC announces бе119 million contribution to The Square Kilometre Array . ... SKA AAVS0 array . ... One of these is the Square Kilometre Array telescope . ... STFC has as well announced today a contribution of бе165 million to theб European Spallation Source and бе25 millionб to participate in the M3 Space Mission (PLATO).б  Speaking ahead of an event at Jodrell Bank Observatory Science Minister David Willetts announced the funding for the two projects. ...
[ Сохраненная копия ]  Ссылки http://www.mrao.cam.ac.uk/news/stfc-announces-119-million-contribution-to-the-square-kilometre-array/ -- 20.5 Кб -- 10.04.2016
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11. XMM Science Objectives
[ Сохраненная копия ]  Ссылки http://xmm.vilspa.esa.es/user/sciobj/science_top.html -- 1.5 Кб -- 12.11.1998
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12. http://astro.uni-altai.ru/AFgalleries.html
[ Сохраненная копия ]  Ссылки http://astro.uni-altai.ru/AFgalleries.html -- 1.1 Кб -- 01.10.2012
[ Сохраненная копия ]  Ссылки http://astroclub.ru/ -- 1.2 Кб -- 09.04.2016
[ Сохраненная копия ]  Ссылки http://astronomy.tomsk.ru/google.php -- 1.3 Кб -- 01.10.2012
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13. Amateur Telescope Makers of Boston
... Telescopes . ... But regardless of where you observe from or whether or not you have a telescope, exploring the many aspects of astronomy can be an exciting hobby. It can be an activity shared with thousands of other amateurs all over the world. ... Or it might be pursued more actively by joining a local astronomy club like the Amateur Telescope Makers of Boston and learning by direct association with other amateurs. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...
[ Сохраненная копия ]  Ссылки http://www.atmob.org/library/articles/gettingstarted.php -- 14.4 Кб -- 09.04.2016
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14. Detection of unique bright radio flare of X-ray binary
... The Galactic low-mass X-ray binary GS 2023+338 was discovered during the burst on May 22, 1989 with the Japanise satellite Ginga (aka Galaxy). The flux reached 17 crabs (this unit of flux measurement is an bright X-ray source, Crab Nebula) at 10-35 keV. ... No other radio telescope worldwide carried out multi-frequency measurements. ... Upon 14 days the radio flux fell below the detection level at the RATAN-600 in relation to the decrease of the X-ray flux. ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/Doc-en/SciNews/2016/Trushkin/ -- 8.4 Кб -- 10.04.2016
[ Сохраненная копия ]  Ссылки http://mavr.sao.ru/Doc-en/SciNews/2016/Trushkin/ -- 8.4 Кб -- 10.04.2016
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15. XWare > APOD
... In fact, 18th century cosmic tourist Charles Messier cataloged two of them; M8, the nebula below and right of center, and colorful M20 at the upper right. Driving Toward a Sun Halo . ... In the above case, however, there are actually millions of lenses: ice crystals. ... Edge On Galaxy NGC 5866 . ... Many disk galaxies are actually just as thin as NGC 5866, pictured above, but are not seen edge-on from our vantage point. ... Infrared Andromeda . ... Enceladus Ice Volcanos . ...
[ Сохраненная копия ]  Ссылки http://www.astronet.ru/db/xware/apod.html?page=63&d=2008-02 -- 15.0 Кб -- 12.04.2016
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16. Natural Science Building Student Telescope
A student observatory located on the roof of the Natural Science Building on Belknap Campus is used in the astronomy lab classes and by majors in the Department of Physics and Astronomy's B.S. Astrophysics track. ... The 14-inch Celestron Schmidt-Cassegrain seen here was installed in May 2010. ... In spite of a location in the midst of our bright urban heat island, this 14-inch diameter telescope provides quality visual images of the moon, planets, multiple stars, and bright nebulae. ...
[ Сохраненная копия ]  Ссылки http://www.astro.louisville.edu/education/natural_science/rooftop/index.html -- 3.1 Кб -- 11.05.2010
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17. http://site2010.sai.msu.ru/static/doc/DAfshari.pdf
Measurement of Sky Brightness at the Iranian National Observatory Davoud Afshari1 and Sadollah Nasiri1,2 1Physics Department, Zanjan University, Zanjan 45195-313, Iran; Institute for Advanced studies in Basic Science (IASBS), Zanjan 45195-1159, Iran; Measurement of light pollution 2 Introduction Among 34 candidate sites at the central part of the country, 5 sites namely Garkesh (in Kashan ), Kolahbarfi(in Kashan ), Deynava (in ... One of these is light pollution. ...
[ Текст ]  Ссылки http://site2010.sai.msu.ru/static/doc/DAfshari.pdf -- 472.0 Кб -- 27.10.2010
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18. Using the sky model
... If you elect to model the sky, you will see some graphs showing the progress of the fitting procedure. First, if some bright stars were observed, you see a plot of sky data (for a given band and night) as a function of the adjacent star's brightness. ... Second, if there are enough dark-sky data to model, you will see a plot of the dark-sky data (corrected for star light) as a function of airmass, with the fitted term drawn in as + signs. ... Again, the fit is shown with + signs. ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/precise/Midas_doc/doc/94NOV/vol2/node290.html -- 9.6 Кб -- 23.02.1996
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19. http://www.arcetri.astro.it/~salinari/ELT/Storey_et_Al_2002.pdf
Antarctica as a Stepping stone to Space J.W.V. Storey, M.G. Burton and M.C.B. Ashley School of Physics University of New South Wales Sydney NSW 2052 Australia Email: j.storey@unsw.edu.au The high Antarctic plateau offers a unique observing environment that is in many ways intermediate between earth and space. In the infrared, for example, the sky brightness is typically 10 to 100 times darker than at "temperate" observatories. ... The synergy between Antarctica and Space. ...
[ Текст ]  Ссылки http://www.arcetri.astro.it/~salinari/ELT/Storey_et_Al_2002.pdf -- 17.3 Кб -- 28.08.2003
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20. Description of the RadioAstron project, english version
... They are concerned with Attitude Control System of the spacecraft, satellite visibility from tracking stations, limits on the satellite autonomous operations during the orbit, and needs for auxiliary operations with the spacecraft. ... Among the operational constraints the most important one is the number of programmed slews per orbit, which determines the maximum number of radio sources to be observed during one orbit. ... System temperature (K) . ... Progress of the RadioAstron Project in Pictures...
[ Сохраненная копия ]  Ссылки http://www.asc.rssi.ru/RadioAstron/description/observations_eng.htm -- 9.5 Кб -- 10.05.2008
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