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. ...

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• PAUL J. GREEN - Getting Students Involved in Physics & Astronomy!
• Period Criteria
• The AstroStat Slog Blog Archive Quintessential Contributions

... We considered our current level of technology compared to that of an average alien civilization. Regardless of any modest value of L chosen?500 years, 5000 years, or longer?their level of technology is vastly advanced compared to ours. Thus, most science fiction gets it right by having advanced alien technology, but gets it wrong by not making them sufficiently advanced. ... What would alien civilizations at a distance of 100 or 1000 lightyears know of us (hypothetically)? ... Education . ...

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... An Unexpected Flare from the Crab Nebula . ... Credit Copyright: NASA , DOE , Fermi LAT , R. Buehler ( SLAC , KIPAC ) Explanation: Why does the Crab Nebula flare? ... As recently as one month ago, gamma-ray observations of the Crab Nebula by the Fermi Gamma Ray Space Telescope showed an unexpected increase in gamma-ray brightness, becoming about five times the nebula's usual gamma-ray brightness, and fading again in only a few days. ... Publications with keywords: Crab Nebula - gamma ray . ...

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• Астронет > An Unexpected Flare from the Crab Nebula
• Supernova 1994D and the Unexpected Universe
• Астронет > Supernova 1994D and the Unexpected Universe

Space Telescope Science Institute . ACS Instrument Handbook Cycle 19 . ... Advanced Camera for Surveys Instrument Handbook for Cycle 19 > Chapter 9: Exposure-Time Calculations > 9.1 Overview . ... In this chapter we explain how to use sensitivities and throughputs to determine the expected count rate from your source and how to calculate exposure times to achieve a given signal-to-noise ratio for your ACS observations taking all background contributions into account. ...

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• ACS Instrument Handbook
• ACS Instrument Handbook for Cycle 20
• CSPICE Routines: BADKPV_C

... QSO spectra in the ROSAT band are steeper than the background at harder energies, and furthermore at fluxes below 1E-14 ergs/(s cmќ) the quasar source counts flatten off and are replaced by more numerous populations of relatively low red-shift objects, apparently Narrow Emission Line Galaxies (NELG). ... We extracted the luminosity function from ROSAT Deep Survey results, and extrapolated by a factor of 2 - 3 to account for changes expected in the harder XMM band. ...

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• Suppression of detector noise at low energies
• Description
• Theory

... 2011 May 23 . An Unexpected Flare from the Crab Nebula . ... As recently as one month ago, gamma-ray observations of the Crab Nebula by the Fermi Gamma Ray Space Telescope showed an unexpected increase in gamma-ray brightness, becoming about five times the nebula's usual gamma-ray brightness, and fading again in only a few days. ... The above image shows how the Crab Nebula normally appears in gamma rays, as compared to the Geminga pulsar, and how it then appeared during the recent brightening. ...

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• APOD: 2015 May 31 - Supernova 1994D and the Unexpected Universe
• Contributions
• APOD: 2009 September 8 - Unexpected Impact on Jupiter

For today's in class we will be working with spatial and temporal data sets which are quite noisy. Particularly, you have monthly rainfall totals for the following six locations in Oregon from the period 1950 - 1999. Eugene . Salem . Portland . Astoria . North Bend . Newport . There are many facets of what you can do with this data. Please explore the following questions with some degree of sound statistical reasoning and data presentation: .

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• Evidence for Dark Matter

... For a pulsar search observation, with the two polarizations averaged, a useful rule of thumb can be given for calculating the expected rms noise. If the rms noise, , is expressed in terms of the flux density of the target pulsar, then; . ... Robert Minchin 2012-02-22 ...

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• sbn calibration sep01
• Jodrell Multi-beam Virgo Survey
• ALFA Motor RFI

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The present-day DD population is examined as a function of Galactic star-formation history alone. It is shown that the frequency distribution, in particular, is a sensitive function of the Galactic star formation history and could be used to measure the time since the last major star-formation epoch. ... Last Revised: 2012 November 22nd . ...

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• Terry Mosely's Bulletins
• Code of Good Practice for Scholarly and Scientific Research
• How We Contribute to New TSN

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... History . Brief History of Rocket and Space Technology . ... Project History . ISS Russian Segment . Steps of ISS Assembly . ... ISS 45/46 . ... Rocket Space Complexes . ... Automatic Space Systems . Universal Space Platform . ... History of flights . ... UDOD . ... Man in space | ... Kit "UDOD-КRM", including data storage device "UDOD. ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

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... Figure 1: A sketch of the southern side (main entrance area) of the new Control Building. ... This will happen in late 2006 or early 2007. ... As with Narrabri, a broadband fibre connection to Mopra and Siding Spring Observatory was installed in early December, with commissioning again expected in late February or early March. ... The surges that accompanied the failure overwhelmed the Control Building uninterruptible power supply, causing a power loss to the Control Building equipment. ...

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• mfboot
• G Quirks and Unexpected Behaviour
• Programme - Abstract

The Proceedings will be published by World Scientific . ... http://www.arcetri.astro.it/~texaflor/proceedings/Texas2002proc_LaTeX2e.tgz . ... http://www.arcetri.astro.it/~texaflor/proceedings/ASSIGN-STD.ps . http://www.arcetri.astro.it/~texaflor/proceedings/ASSIGN-STD.pdf . http://www.arcetri.astro.it/~texaflor/proceedings/ASSIGN-STD.doc . ... b) no color page or color image or color graph will be accepted under any circumstance. ... http://www.arcetri.astro.it/~texaflor/ . ...

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• Performances of NICS
• APOD: December 30, 1998 - Supernova 1994D and the Unexpected Universe
• APOD: 2000 March 12 - Supernova 1994D and the Unexpected Universe

... We employ Bayesian inference for the joint estimation of sources and background on ROSAT All-Sky Survey (RASS) data. ... Background maps were estimated in a single step together with the detection of sources without pixel censoring. ... The source probability is evaluated for single pixels as well as for pixel domains to enhance source detection of weak and extended sources. ... The spline fits the background component whereas count enhancements classify pixel (domains) with source contributions. ...

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• FITS BoF Session
• A Test for Weak Cosmic Ray Events on CCD Exposures
• Bias-Free Parameter Estimation with Few Counts, by Iterative Chi-Squared

... The hotter the gas, the faster they move, and the more energy each of them holds. The free ions and electrons in a plasma behave the same way. Knowing the temperature of the high atmosphere of Earth, or that of the Sun, we can calculate energies expected of ions and electrons found there. However, ions and electrons actually observed in space are often much , much more energetic, and may move at a respectable fraction of the velocity of light (300,000 km/sec or 186,000 miles/sec). ...

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Address: ESO Karl-Schwarzschild-Str. 2 D-85748 Garching (Germany) Telephone: +49 89 32006343 Fax: +49 89 3202362 Email: msarazin@eso.org Expected absences from office. Weather forecasting - forecasting of seeing, fuzzy logic ; . Astroclimatology , - meteorology, telescope environment, atmospheric turbulence, and related topics; . ... ESPAS Working Group Homepage . ... IAUS 288: Astrophysics from Antarctica 20-24 August 2012, Beijing, China Nanjing . ...

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• ESO - I see unexpected boxy emission-like features in my REDL spectra - where
• BL Lacs
• QA rules: DFS commissioning acceptance

... We present methods of comparing theoretical predictions for the anisotropy of the Cosmic Microwave Background Radiation (CMBR), with the results of various experiments. ... Temperature flucuations . ... Most models of structure formation in the universe predict anisotropies in the CMBR. ... Therefore one must take into account not only the theoretically expected value of the temperature fluctuation but also the so-called cosmic variance, i.e. the theoretical error due to observing only one universe....

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• XXVIIth YERAC Contributions
• Astrophysics Group STFC announces бе119 million contribution to The Square
• Contributing to casata Bojan Nikolic web pages (r. 329)

. Better satellite instruments are improving measurements of solar energy reaching Earth. Exactly determining the contribution of solar fluctuations to rising global temperature is expected to become possible as new instruments, such as the Total Irradiance Monitor above, further refine solar measurements. The device is scheduled to launch next month on NASA's Glory spacecraft. NASA

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• Is there any way photons could contribute to the mysterious dark matter? |
• Bob Berman's strange universe: Expect a surprise | Astronomy.com

Astronomy Discussion Forums . ... I Expected More Sense Than That. ... Post Message | ... Posted by Richard D. Stafford, Ph.D. on November 8, 2002 04:14:05 UTC . ... You are missing the point - harvey1 - November 8, 2002 - 13:10 UTC . I hope Stafford doesn't mind my intruding his forum - mrsouza - November 8, 2002 - 14:55 UTC . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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• Shifts Are As Would Be Expected. - an Astronomy Net Blackholes2 Forum Message

... I.A.Dynnikov, Three-page approach to knot theory. ... Universal semigroup, Funktsional'nyi Analiz I Prilozhenija, 34 (2000), no.1, 29-40 (Russian); English translation in Functional Analysis and Its Appl. 34 (2000), no.1, 24-32. I.A.Dynnikov, Finitely presented groups and semigroups in knot theory. ... Math. 2000, no. ... English translation: Russian Math. ... A.Vershik, Numerical invariants of exponential groups, and a locally free approximation of braid groups (in Russian), Zapiski Nauchn. ...

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• Vladimir Ig. Arnold (12.06.1937-03.06.2010)
• Conference "Zeta Functions"
• Conf rence "Zeta Functions"

GTK+ 2.0 Tutorial . Prev . Next . This document, like so much other great software out there, was created for free by volunteers. If you are at all knowledgeable about any aspect of GTK that does not already have documentation, please consider contributing to this document. If you do decide to contribute, please mail your text to Tony Gale, gale@gtk.org . Also, be aware that the entirety of this document is free, and any addition by you provide must also be free. ...

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• The very metal-poor local dwarf galaxies
• Contributed Commands
• Conditional Statements, Branching