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1. Gaps in the Cloud Cover? Comparing Extinction Measures in Spiral Disks
Dust in galaxies can be mapped either by the FIR/submillimeter emission, the optical or infrared reddening of starlight, or the extinction of a known background source. ... We find that distant galaxies are predominantly in low-extinction sections marked by the color maps, indicating that their number depends both on the cloud cover of Spitzer-resolved dust structures, mostly the spiral arms, and a diffuse, unresolved underlying disk. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/~kgordon/papers/2007AJ....134.1655H.html -- 4.7 Кб -- 21.01.2016
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2. Low-Mass Star Formation
Next: Jets Up: M.D. Smith Previous: High-Mass Star Formation Contents . By contrast, stars of low mass like our Sun are formed within molecular clumps. Michael Smith has been investigating the clumps and the individual cores they contain within one nearby cloud near the star Rho Ophiuchi. With Stanke (Hawaii), Khanzadyan (Heidelberg) and Gredel (Calar Alto), he has determined the masses of over 100 protostellar cores and compared this to the distribution of masses for stars. ...
[ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/annrep/annrep2004/node58.html -- 5.7 Кб -- 19.04.2005
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3. http://zebu.uoregon.edu/2004/es399/iw3.html
... Each data set has 36 values in it. ... If it is, what can you conclude about the nature of the data? ... Data Set 1: 12.8 8.4 12.5 2.5 1.1 0.4 1.4 0.4 0.1 1.6 6.4 9.3 6.9 6.8 7.6 2.9 2.2 0.9 1.2 2.1 0.1 5.7 8.5 7.1 9.8 7.6 6.2 1.9 0.9 0.2 0.4 2.0 1.1 1.9 1.3 1.2 Data Set 2: 6.8 12.3 10.6 3.4 1.8 1.8 1.8 3.2 0.5 1.4 13.1 7.5 2.1 9.6 6.4 5.4 3.9 3.9 0.3 0.1 0.9 6.1 18.7 4.6 0.3 5.1 5.7 0.5 1.5 2.5 1.4 0.1 2.1 4.8 6.3 3.5 Data Set 3: 6.9 2.6 8.6 7.9 6.9 3.7 1.1 1.8...
[ Сохраненная копия ]  Ссылки http://zebu.uoregon.edu/2004/es399/iw3.html -- 3.6 Кб -- 18.02.2004
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4. Communications For Your Astronomy Event - an Astronomy Net Article
Communications For Your Astronomy Event . Articles | ... Once upon a time, communication via radio was something only government entities, commercial establishments and certain private folks could do. ... With the continuing progress of services like General Radio Mobile Service (GMRS) and the recent arrival of Family Radio Service (FRS), it has never been easier to do radio communications for your event all by yourself. ... Broad range of radio bands to utilize. ... www.astronomy.net . ...
[ Сохраненная копия ]  Ссылки http://www.astronomy.net/articles/28/introduction.html -- 16.8 Кб -- 09.04.2016
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5. Gain correction
... In the pn-CCD, 768 individual amplifiers allow fast readout, but imply different gains for the different readout channels which all have to be determined and corrected for. The gains of the 768 readout nodes were derived by comparing the position of CTI corrected calibration lines (in adu) with their known energy. ... More details on the CTI and gain correction can be found in []. ...
[ Сохраненная копия ]  Ссылки http://xmm.vilspa.esa.es/sas/8.0.0/doc/calpnalgo/node6.html -- 3.7 Кб -- 01.07.2008
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6. http://hea-www.harvard.edu/~pgreen/SOC/1.html
... Extragalactic Surveys . I will review our current understanding of the history of supermassive black hole accretion from deep and wide-area X-ray surveys. ... Monday: Type I and II AGN, Absorption, XBONGs, Tuesday: AGN correlation functions, LSS, environments . ... Monday: 'Normal' Galaxies, Tuesday: Cluster Formation and Evolution . ... Deep X-ray surveys are providing crucial information on the evolution of AGN and galaxies. ... The luminosity function and evolution of normal galaxies . ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/~pgreen/SOC/1.html -- 6.7 Кб -- 01.10.2012
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7. ASP: Education Newswire
... 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 . ...
[ Сохраненная копия ]  Ссылки http://www.astrosociety.org/pubs/mercury/0001/j_f00.html -- 12.7 Кб -- 02.10.2012
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8. Bright prospects: Comparing the H Survey with large-scale radio continuum
... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Australia Telescope 20GHz Survey . ... Bright prospects: Comparing the H Survey with large-scale radio continuum emission . ... Prospects for comparisons between the AAO/UKST H \ survey and large-scale radio continuum emission are considered, with particular reference to the recently completed Parkes 2.4-GHz survey of the southern Galactic Plane. ...
[ Сохраненная копия ]  Ссылки http://www.atnf.csiro.au/pasa/15_1/duncan/paper/index.html -- 52.4 Кб -- 08.04.2016
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9. antichnoste
Aristarch is Copernic of Classic World. ... First Aristarch determined the fact for how many times the Sun was father then the Moon and then he compared the Sun and the Moon with the Earth. ... Only the Moon rotates around the Earth. ... Gipparch suggested that the Sun turned around the Earth steady and in circumference but the Earth is displaced according its centre. ... The orbit point in which the Sun is nearer to the Earth Gipparch called perigee and the most remote one he called apogee . ...
[ Сохраненная копия ]  Ссылки http://www.space.vsi.ru/antichnoste.htm -- 6.6 Кб -- 14.10.2000
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10. Educator's Guide to Robotic Spacecraft
Educator's Guide to Robotic Spacecraft . ... Spacecraft are complex, technological objects that have to function far from Earth in the harsh environment of space. ... If the students are familiar with spacecraft they can be prompted with body parts and attempt to identify the analogous spacecraft part. This will work well if the students have a high quality picture of a modern spacecraft. ... Identify a mission and a destination for a spacecraft and have teams of students design the spacecraft. ...
[ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/solar/eng/edu/robotsc.htm -- 5.7 Кб -- 15.10.1997
[ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/edu/robotsc.htm -- 6.5 Кб -- 15.03.1998
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11. The Communication of Images from New Generation Astronomical Telescopes
... Up: Future Instruments and Telescopes, Tools . ... New Generation Astronomical Telescopes (NGAT), a class of telescopes designed to be operated remotely and robotically, require efficient methods for communicating images over heterogeneous and low-bandwidth data networks such as the Internet. ... Methods researched thus far involve the classification of astronomical images based on object parameterisation, progressive image transmission, and evaluation of existing image compression schemes. ...
[ Сохраненная копия ]  Ссылки http://www.adass.org/adass/proceedings/adass99/P1-30/ -- 11.5 Кб -- 12.10.2000
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12. modelAerostatPeriods
... Comparing the periods from the model and P2030 data (.ps) ( .pdf ) . aeroPer.dat...file containing aerostat periods. ... The model was then used to determine the periods that it could generate in pulsar observations. ... rf pulse length: 320 Useconds (this is actually 2 160 usecond pulses that are sequential in time). 7 ipps of 3771., 3504., 3076, 2809., 2903.5, 3289., and 3676. useconds. blanking of the radar signal for 42 degrees of azimuth centered on the observatory direction. ...
[ Сохраненная копия ]  Ссылки http://www.naic.edu/~phil/rfi/rdr/aerostat/modelAeroPeriods.html -- 5.8 Кб -- 26.02.2009
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13. XWare > APOD
... NGC 6826: The Blinking Eye . 19.12.1997 . The colorful planetary nebula phase of a sun-like star's life is brief. Almost in the "blink of an eye" - cosmically speaking - the star's outer layers are cast off, forming an expanding emission nebula. ... As 1997 fades, so does the Great Comet of 1997: Comet Hale-Bopp. ... Many will remember Comet Hale-Bopp as a comet with a coma so bright it could be seen by eye even when near the Moon. ... The Coma Cluster of Galaxies . ... 1997 1998 . ...
[ Сохраненная копия ]  Ссылки http://www.astronet.ru/db/xware/apod.html?page=66&d=1999-09 -- 14.9 Кб -- 12.04.2016
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14. http://www.eso.org/~pmoller/FIZZWIG-FAP/Team-meetings/2007-07-12
... Wolfram ----------------------------------------------------------------------------- We intend to use aperture photometry with aperture scaled by seeing. We will test how well this works before making a final decision. ... These tests should also clarify the significance of the finding. ... The question is this: When we do the counter-rot of the frames, and then co-add, how do we know that the features we see are true rotating features, or simply remaining features seen in single frames? ...
[ Сохраненная копия ]  Ссылки http://www.eso.org/~pmoller/FIZZWIG-FAP/Team-meetings/2007-07-12 -- 5.1 Кб -- 16.07.2007
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15. Comparing files under SCCS control
. You can compare any two versions of a file that is under the control of SCCS with the sccsdiff command: /usr/sccs/sccsdiff -r version -r version s. filename . Using this command produces a line by line difference between the two versions of the file. Results are shown in the same format as that produced by the diff command. Examples .
[ Сохраненная копия ]  Ссылки http://comet.sai.msu.ru/UNIXhelp/utilities1/sccs_compare.html -- 2.2 Кб -- 17.01.1997
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16. Keywords_17
Masses of some binary asteroids obtained by the dynamical method . ... The method of regularization of A.N. Tikhonov was used in this paper along with the least squares method on a stage of solution of the ill-conditioned systems of linear equations to determine masses of asteroids by the dynamical method. ... For these asteroid values of their masses were obtained by other authors using observations of satellites. ... binary asteroid, mass of asteroid, dynamical method. ...
[ Сохраненная копия ]  Ссылки http://www.ipa.nw.ru/PAGE/EDITION/transaction/transaction_ann26/17.htm -- 3.8 Кб -- 09.04.2016
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17. Line parameter measurements
Next: Results of follow-up spectroscopy Up: Data reduction Previous: Reduction of the Calar . In the final spectra, redshifts and line fluxes are measured within MIDAS, applying Gaussian fitting to the emission lines. To determine redshifts for individual galaxies, averages are taken over the prominent individual emission lines (mostly H , H , [O III ] 4959,5007 ?) The line [O II ] 3727 ? ... For all spectra, the individual emission line fluxes of the H , [N II ] 6548,6583 ? ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/precise/Laboratory/Publications/2000/HSSIII/node8.html -- 6.0 Кб -- 08.02.2000
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18. Lack of Dwarf Galaxies in the Local Volume Compared to Conventional Cosmology
... The sample of the Local Volume galaxies (distance smaller than 10 Mpc) gives a unique opportunity to study the properties of galaxies including the weakest objects: the absolute magnitude M B -10 and the virial mass M vir 10 9 M x263C;. ... Luminosity function of the Local Volume galaxies. ... The luminosity functions for galaxies are presented: red dashed line - from the 2dFGRS survey (Norberg et al. 2002); blue dash-dotted line - from the SDSS survey (Blanton et al. ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/Doc-en/SciNews/2016/Makarov/ -- 7.5 Кб -- 10.04.2016
[ Сохраненная копия ]  Ссылки http://mavr.sao.ru/Doc-en/SciNews/2016/Makarov/ -- 7.5 Кб -- 10.04.2016
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19. Comparing Masses Without Use of Gravity
... Mass . 17a. Measuring Mass . ... A medium-size (1.25 inch wide) binder clip, as is used in offices to hold papers together--the type made of flat blue steel, with two wire handles. ... The theory predicts that the oscillation period should be proportional to the square root of the oscillating mass, including the mass of the clip. Note that gravity plays no part here: the oscillation period would be the same on the Moon or in zero-g. Denoting square root by SQRT, we have . ...
[ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/mirrors/stern/stargaze/Smasscom.htm -- 8.9 Кб -- 21.12.2007
[ Сохраненная копия ]  Ссылки http://www.cosmos.ru/mirrors/stern/stargaze/Smasscom.htm -- 8.9 Кб -- 22.12.2007
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20. The High-Z SN Search Description
As the Universe expands, gravity pulls on the Universe, and slows the expansion down over time. As we look to great distances, we are looking back in time. If we can measure how fast the Universe is expanding in the past, and compare it to how fast it is expanding now, we can see the total gravitational effect of all matter in the Universe. Here we plot the distance between two galaxies as a function of time. ... Universes with lots of material . ...
[ Сохраненная копия ]  Ссылки http://www.mso.anu.edu.au/~brian/PUBLIC/fate.html -- 7.8 Кб -- 01.10.2012
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