... The concerns here are similar to those for observing bright targets; saturation and blooming of the bright companion PSF must not impact the faint target. Also, one may need to consider subtracting the PSF of the bright object, and effects which limit the accuracy of that subtraction. If the bright companion will saturate and bloom, it will be necessary to rotate the CCD so that blooming along the CCD columns does not obliterate the faint target. ...

. Russian Version [ MS-Win ] . [ News ] . [ Satellite data ] . [ SMIS ] . [ ] . Data has been received and processed at ISZF SO RAN for the information system "Russian Forest Fires" . 6/10/1998 . 5:40 GMT . 7/10/1998 . 5:30 GMT . 8/10/1998 . 5:19 GMT . 2/10/1998 . 3/10/1998 . 4/10/1998 . 5/10/1998 . 6/10/1998 . 7/10/1998 . 8/10/1998 . 9/10/1998 . Back to SMIS Home Page .

... This example shows the Interference removal for the Baker Electron Density data (Qihou Zhou). ... The Arecibo ISR can measure velocities to an accuracy within 1 m/s for an integration time of 30 second in the D-region. ... The Arecibo ISR can measure the neutral winds and temperature in the E-region. ... We are working on to get the ion neutral collision frequency as well. ... The other parameters that we regularly measure include electron temperature, vector ion drift, light ion contents etc. ...

PixelVision Inc. ... Soft X-ray Imaging Systems . ... Figure 1: Schematic of a Back-Illuminated CCD . ... To complete CCD thinning, the back surface must be specially "treated" or very low and very unstable responsivity will be exhibited. ... Figure 2: Back-illuminated CCD electron hole pair generation rate as a function of depth from back surface . X-ray detection occurs in a CCD when a high-energy primary x-ray dissipates its energy in the silicon of the back-illuminated CCD. ...

... Research objects and scientific purposes . Space scientific program includes development and launch of two supersmall spacecrafts "Universitetskiy" and "Kompas-2" intended for monitoring of radiation conditions near the Earth. ... All the studies conducted in the near-Earth space are characterised by strong radiation fields. ... The circular polar orbits, which cover all the near-Earth space, are the most favorable for comprehensive studies of the radiation conditions near the Earth. ...

... Summary of reduced ISAAC fields . ... This data release includes eight fully reduced VLT/ISAAC fields in J,H,K s bands covering 50 arcmin 2 of the GOODS region in the Chandra Deep Field South (CDFS). ... 8 ISAAC fields) . ... The 8 ISAAC fields which are part of this data release are superimposed onto a SOFI image (J+K) (part of a previous EIS data release). ... In one case (GOODS field 11/J-band), for which not enough standard stars were available, the ZP was boostrapped from previous SOFI/EIS data...

... We report on our ongoing project ``Infrared Study of HII Regions Associated with Small Clouds.' ... These IR data, combined with optical imaging (which will be obtained from the IAC-80 telescope), IRAS survey maps, and existing CO observations of the associated clouds, will allow us to undertake a detailed investigation of the gas-to-dust mass ratio, initial mass function and the star-formation efficiency in these complexes. ... CHECKPSF: check the PSF (Point Spread Function) model, . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Risks Comparable to NEOs . ... The Increasing Rate of Discovery of Asteroids . ... Comet and Asteroid Collision Probabilities . ... Extreme albedo comets and the impact hazard (PDF Format) . ... Asteroid Impact Animations . ... Workshop on Scientific Requirements for Mitigation of Hazardous Comets and Asteroids - 2002 . ... The Spaceguard Survey Report, 1992 (PDF) . Tsunami from Asteroid/Comet Impacts . ...

... The stars examined here were primarily culled from two lists of X--ray sources in Orion. ... The second region is two degrees in extent east--west and ten degrees north--south with Orionis being near the northern edge. ... In the end, two main regions were chosen for monitoring: stars near Orionis and stars northwest of the belt of Orion. ... The PSPC identified 22 sources within 15 of Orionis in addition to the sources listed in Table 1 , giving a total of 85 X--ray sources in the Orionis region. ...

. MSU-E data examples. Russian (WIN) . Orenburg (Russia) . 18/01/1999 . Astrakhan' Region . Near Znamensk . 10/05/1998 . Astrakhan' Region . Near Znamensk . 24/07/1998 . Arkhangelsk Region . Fire in August 1997 . Moscow . 16/03/1995 . Guriev, . 2/07/1996 . example 1 . Guriev, . 2/07/1996 . example 2 . © 1997-2002 SMIS IKI RAN and SRC "PLANETA" Moscow, Russia.

Astronomy Picture of the Day . Spooky Star Forming Region DR 6 . ... 1.11.2004 . ... Credit Copyright: S. Carey ( Caltech ), JPL-Caltech , NASA Explanation: How could stars form such a spooky and familiar shape as a human skull? ... Next, the physical reasons for the large nearly empty cavities that resemble the skull's eyes and mouth in nebula DR 6 are the strong stellar winds and energetic light emanating from about ten bright young stars in the nebula's central "nose". ... November 2004 . ...

XMM-Newton Science Analysis System Page: 1 omregion June 28, 2006 Abstract Calculates evselect region les for an OM source 1 Instruments/Modes Instrument Mode OM FAST 2 Use pipeline processing yes interactive analysis yes 3 Description This task takes an OM OSW source list and a source number and produces evselect region les for the source and its associated background. ... Intermediate source region le for use by evselect 2. ...

... 2016 February 16 . Star Forming Region S106 . ... Explanation: Massive star IRS 4 is beginning to spread its wings. Born only about 100,000 years ago, material streaming out from this newborn star has formed the nebula dubbed Sharpless 2-106 Nebula (S106), featured here . ... S106 gas near IRS 4 acts as an emission nebula as it emits light after being ionized , while dust far from IRS 4 reflects light from the central star and so acts as a reflection nebula . ... About APOD | ...

. March 29, 1998 . Fig. 1. An example of the EUV chain revealed by the modified SOHO/EIT images. The EUV (195 A) chain of March 29, 1998 going from the north-east limb (point 1) to the near-west-limb point 2 with a possible turning to the north direction. Perhaps this chain is crossed in the central region of the disk by two weaker chains outgoing from the east-limb point 3. Back to the page of the SOHO/EIT and Yohkoh/SXT chains . Back to the parent page . Last update: 9 August 1998 .

... Absorption by neutral atomic hydrogen in luminous spiral galaxies provides an excellent tool to study the gas kinematics in their nuclear regions. ... Since the absorption lines are intrinsically narrow as a result of the low temperatures of the optically thick gas, typically 30 to 150 K (Dickey, Salpeter & Terzian 1979), it is surprising that numerous galaxies show H I absorption over a broad range of velocities (a few hundred kms -1 ); see e.g., Fig. ... range . ... NGC 253 . ... NGC 660 . ...

Plasma phenomena occuring at one place in the magnetosphere also affect other locations This linkage is most pronounced between points that share the same field line, since field lines guide the motion of ions and electrons. ... It follows that the places on Earth most sensitive to distant magnetic effects are the "polar caps" , the regions around the magnetic poles. A good example is the polar aurora . ... way polar field lines . ... and to the Sun . ... Next Stop: #26H. Polar Cap--History . ...

. Go to RUSSIAN (KOI-8) . The spectrum of giant HII region in galaxy NGC 1084: . Grating : R1302(17) . Halpha region . Exposure time: 780s . Processing: 2 exposures sum with cosmic hits cleaning . The spectrum of bright HII region M17: . Grating : R1302(17) . Halpha region . Exposure time: 600s . Processing: 2 exposures sum with cosmic hits cleaning . Back to LSS main page. Back to Laboratory Home Page .

... Problems of Developing and Near-Earth Environmental Protection. Electromagnetic and Corpuscular Radiation of Sun as the Main Factors of Near-Earth Environment Forming. Solar UV and X-Rays. ... Ionosphere. ... Dynamic of Ionosphere Plasma.Ionosphere Conductance. ... Magnetosphere. ... Energetic Particles Motion in Magnetosphere. ... Auroral Particles and Phenomenons in Auroral Borealis Zones. ... Auroral Particles Invasion of Atmosphere and Its Effects - Auroral Borealis, Ionization, Heating. ...

... The file names' construction . The flight (m) stage's file set . ... the orbital data used for the flight operation monthly (m) long-term planning, . ... The orbital calculations are based on the initial orbital data determined by KIAM RAN using the orbital radio- measurement treatment. The determined initial orbital data are presented as a state vector (satellite position and velocity) in the J2000 reference. ... Accept the file with extension '.bgr', where the Moscow time (MT=UT+3h) is used. ...

This diagram illustrates two block boxes, one above the other, with rectangular clipping regions of different dimensions. ... Both axes depict increments of 5px. The clipping region of the first P box lies entirely within it, offset 5px from the top and left edges of the P box, and 10px from the right and bottom edges. ... The clipping region of the second P box resembles that of the first in style and position, except that the right edge is 5px to the right of the P box's right edge. ...