XMM­Newton CCF Release Note XMM­CCF­REL­208 OM Grisms Calibration: correcting count rate in extracted spectrum A. Talavera June 12, 2006 1 CCF components Name of CCF VALDATE EVALDATE List of Blocks changed XSCS flag OM GRISMCAL 0004 2000­01­01T00:00:00 --- Header keywords NO --- FLUX GRISM1 NO 2 Changes 2.1 UV Grism Flux Calibration SAS task omgrism extracts the spectrum from a grism rotated image. ... Such a corrected ISF (for the UV grism ­ GRISM1) is implemented in the new OM GRISMCAL 0004.CCF. ...

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... In the central equatorial Pacific, the large area of warmer than normal sea surface temperatures (large area outlined in red with a white center) associated with growing El Nino conditions has recently migrated eastward toward the coast of South America. http://physicaplus.org.il/zope/home/en/1105389911/1113511992_en На этой странице есть презентации с конференции, где активно обсуждалась . ... Картинка со страницы со статьей Шавива. http://physicaplus.org.il/zope/home/en/1105389911/1113511992_en . ...

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... Bad Astronomy . ... I think I will break from my usual format of Bad Astronomy/ Good Astronomy by saying that the way we define seasons currently is not strictly bad, but I feel (in my opinion!) that it could be better. The definition of when the seasons begin is at the moment of solstice or equinox; that is, winter (in the north) starts on December 22 nd and summer starts on June 22 nd . ... Now imagine breaking up the Sun's 46 degree up-and-down yearly swing into 1 day intervals. ...

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To obtain the GDS input and output set and subsets, a task normally does not call the basic user input routines directly, but calls one or more routines from a collection of specialized routines. ... The function GDSINP is used to obtain an input set and subsets, i.e. where the task gets its data from. ... Before the function to obtain the output set and subsets (GDSOUT) can be called, it is necessary to relate the input set to the output set. ...

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... A full set of flatfield frames was taken with the NICMOS arrays during the System Level Thermal Vacuum test, conducted on the ground in August 1996. ... Users are encouraged to recalibrate their data with on-orbit flatfields if the pipeline calibration used thermal vacuum flatfields. Preliminary results from SMOV indicate that variations in the large scale structure of the on-orbit flatfields relative to the thermal vacuum flatfields are of the order of 1-2% in Camera 2, and up to 5% in Camera 1. ...

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EXPLANATION OF DANA'S FIBER TESTS ON THE 12M TELESCOPE.. ... But we know full well that this is not directly possible- the delay in the optical fiber carrying this signal will change both with temperature and to some degree with fiber bending as the telescope tracks objects or moves from one object to another. ... So we would like to identify at least one pair of single mode fibers in our bundle, whose delay changes due to antenna tracking etc are pretty well matched. ...

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... Simulations were also carried out to quantify the range in parameter space which could be filled by stars varying in accordance with the spot hypothesis. ... First, an unspotted star was produced. To do this, colors of a given spectral type (taken from Bessell and Brett 1992) were converted to fluxes for a normalized distance. ... To simulate spots, between five and 40 of the grid locations were refilled with values corresponding to temperatures between 100K and 1000K cooler than the photosphere. ...

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... Fitting the observed dependence includes calculations of the polarization cross-sections averaged over particles orientation and size distribution, their normalization and the comparison of obtained dependencies with Serkowski's curve representing observational data for a chosen star. ... Variations of the polarization factors with wavelength are shown in Fig. 16 for homogeneous spheroidal particles with PF orientation. ... The distinction between prolate and oblate spheroids is also clearly seen. ...

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spaceweb@oulu.fi - last update: 14 January 1999, 0950 UT (RR) . Term 'global change' is used to describe the changes of the large scale weather systems on Earth , and especially the surface temperature increase, by man-made increase of atmospheric CO 2 . ... It is the last point that is of importance for space physics, since it is possible that also the changes in Sun 's activity could be causing some changes in terrestrial climate. ... Space Physics Text Book of Oulu ...

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. To change your current working directory use the command: cd pathname . where pathname specifies the directory that you want to move to. The pathname can be given as either a full pathname or a relative pathname . Examples . Did You Know? .

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... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Survey Telescopes . ... ESO Science Newsletter . ... The UVES measurement values of the relative change of the fine structure constant alpha from the sample of absorption systems, plotted as a function of the redshift and the corresponding look-back time. ... The horizontal long dashed lines show the area of the previous claim of variation of the fine structure constant. ...

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... ones: H2, C2, C3 Diffuse interstellar bands (known since 1922) Unidentified; Proposed carriers: carbon chains, PAHs, fulleranes Radial velocity of CH+ can be different than those of other species 1.6 RbI 7800A*3 CN 3875A Relative intensity 1.4 CH 3886A CH 4300A/2 1.2 FeI 3720A CH 3957A 1.0 + CH 4232A HD152932 ESO UVES -60 -30 0 30 60 + Radial velocity Diffuse bands (strong and weak) may be of different origin(s) 5780 5772 5775 5797 HD147165 5795 1.02 Relative ... CH 0.96 DIB? ...

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... Star Atlas . ... stars . ... If neutron stars don't produce energy from fusion, like normal stars, how can they shine in visible light? ... Although it is true that neutron stars have, for the most part, consumed all their internal thermonuclear fuel, they tap into other energy sources to produce light. Indeed, neutron stars are remarkably "resourceful" and employ a variety of physical mechanisms to make themselves visible.A newborn neutron star is incredibly hot ? ... Atlas of the Stars . ...

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130 Years of Earth Surface Temperatures . ... The above movie dramatizes the result showing 130 years of planet-wide temperature changes relative to the local average temperatures in the mid-1900s. In the above global maps , red means warmer and blue means colder . On average, the display demonstrates that the temperature on Earth has increased by nearly one degree Celsius over the past 130 years, and many of the warmest years on record have occurred only recently. ... NASA Official: Jay Norris. ...

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Physica B 284}288 (2000) 649 } 650 Superconductor}insulator transition in amorphous In}O lms V.F. Gantmakher*, M.V. Golubkov, V.T. Dolgopolov, G.E. Tsydynzhapov, A.A. Shashkin Institute of Solid State Physics RAS, 142432 Chernogolovka, Russia Abstract From experiments with amorphous InO lms, three conclusions are made: (i) The pattern of the superconducV tor}insulator transition (SIT) seen before for 2D ... Fig. ... Hence, in each "eld the bosons and the fermions coexist. ...

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