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• Comparable Risks
• PROBLEM
• Risks Comparable to NEOs: What is being done about them ?

Blackholes2 Forum Message . ... Post . ... Consequences . ... Post Message | ... Posted by Gary Conner on May 6, 2004 07:34:54 UTC . ... whatever.............. - dolphin - May 8, 2004 - 10:31 UTC . Regarding Bunk - dolphin - May 8, 2004 - 10:53 UTC . ... cool ideas krill - dolphin - May 20, 2004 - 04:37 UTC . ... www.astronomy.net . About 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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... NAIC Director . ... The Arecibo planetary radar is a unique facility whose achievements are well-known to planetary scientists and the public. ... The NSF Astronomy Senior Review report includes only a single, brief, reference to the Arecibo planetary radar. ... Therefore, the SR recommendation that the funding for NAIC be decreased to $8M, together with the SR recommendation that the NAIC astronomy program focus on survey programs, is a recommendation to terminate the Arecibo planetary radar...

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Consequences of Impacts of Cosmic Objects in Circumstances of Changing Climate . ... The consequences of the impacts of asteroids about 1 km in size on the Earth are considered from the viewpoint of their negative effects under conditions when the climate changes. These effects are ejection of greenhouse gases, fires, changes in surface albedo, and global dispersion of asteroid material. ...

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• Keywords_179
• Keywords_376
• What do we see when we look at the surface of a neutron star from a great

... Energy in Russia . Common Purpose (comprehensive site) . Tata Energy Research Institute . ... Home Power Magazine . ... The Alternative-fuel Vehicle Directory . ... American Solar Energy Society . On line solar energy courses . The Fraunhofer Institute for Solar Energy Systems . Solar Electricity . ... American Wind Energy Association . British Wind Energy Association . ... Wind Energy Study Unit for Kids . ... U.S. Department of Energy Geothermal Energy Technical Site . ...

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• Physics 162: Alternative Energy
• Intelligent Life in the Universe
• Fred, Sam and Ralph - continued

... Energetic magnetospheric ions are often unstable to the electromagnetic ion cyclotron (EMIC) instability . ... generation of EMIC waves below the proton gyrofrequency , and . ... Depending on the local proton gyrofrequency, the frequency of the EMIC waves varies: in the magnetosphere we deal with the ULF range (more precisely 0.1-5 Hz), while in the auroral field lines we have ELF waves (tens or hundreds of Hz; see radio frequencies and flickering aurora ). ... Space Physics Text Book of Oulu ...

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• Space weather [Oulu]
• Plasmasphere and plasmapause [Oulu]

... Archives . ... Poisson vs Gaussian . ... Probability density functions are another way of summarizing the consequences of assuming a Gaussian error distribution when the true distribution is Poisson. We can compute the posterior probability of the intensity of a source , when some number of counts are observed in a source region, and the background is estimated using counts observed in a different region. ... Tags: background , gaussian , PDF , Poisson . ... Chandra Blog . ...

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• The AstroStat Slog PDF
• The AstroStat Slog background
• The AstroStat Slog gaussian

Time has come for me to move to a new longitude, but not before following the tradition and updating you on the work I have been doing in the latest stages of my PhD (and beyond). ... This presentation would of course not be complete without a final attempt at convincing you of the potential of some excitingly new technology to publish multi-dimensional datasets in 3-D. Hence, I shall also tell you about the newly developed X3D pathway Chris Owen and I have been developing lately. ...

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• Siding Spring Survey

... The investigation of the utility of SPYBALs in keeping the spectrum centered on the diode array focused on two areas: 1) the change in SPYBAL offset with time and 2) the degree to which an individual spectrum may be tilted with respect to the diode array. ... ZSPYBLU records the offset amount, in y-deflection units, which the spectrum was moved from its nominal position in order to center it on the array. ... ZSPYBLU values for Side 2 GHRS grating G270M over time. ... SPYBAL Drift with Time . ...

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• Instrument Science Report 072: Investigation
• A.1 Filter Passbands, with and w/out Total System
• Photometric Anomalies

... Basics of Group Theory Definition 1. A group G is a (finite or infinite) set of elements g1 , g2 , g3 , . ... Definition 2. ... Each element of a finite group may be represented as a power or product of powers of a certain finite number of elements cal led generators of the group. ... Point Groups Any transformation which brings a body into coincidence with itself can be decomposed into elementary transformations: 1) rotation about an axis, 2) reflection in a plane, 3) translation by some vector. ...

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Семинар по гравитации и космологии имени Абрама Леонидовича Зельманова . ... Очередной семинар (? 283 ) состоится в ПОНЕДЕЛЬНИК, 24 февраля 2016 . ... Consequences of the LIGO direct detection of gravitational waves for relativistic astrophysics and gravity theory . ... Direct detection of gravitational waves by the LIGO collaboration has confirmed many theoretical predictions of general theory of relativity and relativistic astrophysics including the theory of black holes. ...

12. http://www.atnf.csiro.au/projects/askap/techdocs/Constraints_on_SKA_array_configurations.pdf

13. Detector map filtering

14. Estimating the angle of rotation

15. Discussion

16. The Vela Supernova Remnant Expands

17. APOD: 2007 February 13 - Vela Supernova Remnant in Visible Light

18. Laboratory for the Stellar Magnetism Study of SAO of the RAS - Home

19. ENSO Links

20. Arcetri Solar Physics Group: High Resolution Studies