... Registration form . ... Institute of Applied Astronomy of the Russian Academy of Sciences invites you to participate in the all-Russian scientific conference "Asteroid-Comet Hazard-2005" which will be held 3-7 October 2005 in St. Petersburg. ... Batrakov Yu.V. Institute of Applied Astronomy of RAS, St.Petersburg . ... Institute of Applied Astronomy of RAS . ... Finkelstein A.M. Institute of Applied Astronomy of RAS, St.Petersburg . ... Institute of Applied Astronomy of RAS, St.Petersburg . ...

Calculation of Atmospheric Emission Measured by Gregorian Feed Horns Paul F. Goldsmith September 16, 2001 As we use higher frequencies, emission from the Earth's atmosphere becomes more sig- ni cant. ... To use this program, you input the altitude, temperature, and precipitable water vapor (pwv) in mm. ... I have run the ATM code for several values of pwv with plausible temperature, and generated the zenith sky temperature as a function of frequency between 1 and 15 GHz. ...

... We want to know time-scales, and sequences of events, and the ages of stars. ... We would, ideally, like to create a solar comparison sample by finding stars of essentially the same mass, composition, and age and then observing the range of behavior they exhibit. ... At best we can estimate a star 's age. ... Having to construct models that work consistently across a broad range of masses constrains the problem, and yet even for the nearest open clusters we do not know the age to even 10%. ...

... Program,Proceedings . ... Abstracts . ... The main purpose of the Workshop is to provide a forum for presenting and discussing the results of recent low temperature investigations in the microgravity environment, as well as future related studies in fundamental physics that can be carried out on ground and onboard the International Space Station, taking into account the advantage of long-duration experimentation in reduced gravity. ... Manuscript Submission - on attendance the Workshop . ...

A workshop to discuss the detailed science, technical design, performance and implementation plan for aperture arrays in Phase 1 and Phase 2 of the SKA. In particular we will emphasise the achievable requirements for the low frequency aperture array for SKA 1 and discuss the evolution to AA-mid in SKA 2 . ... SKA 1 : SKA phase 1, construction 2016 - 2019, science operation 2020 . SKA 2 : SKA phase 2, construction 2018 - 2023, science operation 2024 . ... Workshop dates . 8-10 December . ...

Communications For Your Astronomy Event . Articles | ... John Huggins, December 19, 2005 . ... Citizens Band Radio - The original . Multi-Use Radio Service . Family Radio Service (FRS) . General Mobile Radio Service . Hybrid Radios . Amateur Radio Service . ... Does your event need communications? ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . are trademarks of John Huggins ...

... We cannot use for this purpose equivalent widths and profiles of HI lines (well known criteria of atmospheric conditions for normal supergiants), since these lines are strongly distorted in the spectrum of IRAS04296 as seen in Fig. ... Figure: Upper: iron abundance FeI (circles) and FeII (crosses) calculated for IRAS04296+3429 with model parameters , and using lines with different excitation potentials EP of a low level; bottom: the same as a function of the equivalent width W . ...

In this new series we present observations and modelling of spectral lines formed in main sequence star chromospheres (from G0 to M8). in this paper, we discuss the Hydrogen line formations in very active dMe stellar chromospheres. ... Our final model atmosphere is described in the next paper in this series. ... We found that observations are best reproduced by a chromospheric structure including a constant temperature gradient (in a log(M) scale) in the chromosphere and transition region. ...

This astrostatistics session will honor the memory of Alanna Connors. Alanna was a pioneer in the investigation and development of statistical methods required for the analysis of high energy data. The session will provide a historical perspective on Bayesian methods, highlight the topics where the contribution made by Alanna were particularly important, summarize current analysis challenges and discuss future perspectives. ... 131.02 Promoting widespread use of Bayesian analysis . ...

The seminar is supported by the grant of Federal Programm "Integration" . ... Panov Igor Vital'evich (ITEP) "R-process nucleosynthesis of heavy elements" . The present status of r-process theory is discussed: achgievements in kinetic consideration of the process and difficulties in understanding of r-process site. ... The original model, where r-process goes on driving by neutrino pulse from collapsing supernova with mass equal to 10-15 solar masses, is discussed. ...

... The air just sit there and doesn't get stirred. ... Normally, the air is hottest near the ground and gets cooler as you go up. ... If it weren't for the temperature profile, convection wouldn't occur: Because the temperature decreases with altitude, cold air sits on top of hot air, allowing convection. ... The air above the ground is hot, the air above the water is cold. ... The land cools down faster than the sea, so the air above the ground is colder than the air above the water. ...