Solar High Resolution Studies . ... Solar Group . ... High Resolution Studies . Small Scale Activity . ... High resolution observations at different heights in the solar atmosphere have emphasized that there is no such thing as a "quiet" Sun (e.g. Schrijver et al., ... This, and the temporal coincidence of other signatures, supports the idea that microflares are indeed just miniature flares, but that one needs a very high resolution in order to observe them (Cauzzi et al., 2003, in preparation) . ...

The next large instrument on a Gemini telescope, GHOST, is being built by a collaboration including AAO, ANU and NRC-Herzberg. It aims to be a high efficiency fiber fed Echelle spectrograph with a wide wavelength range. I will describe the designтАЩs background, including lenslet-based image slicing that reduces slit losses while maintaining high resolution, and why despite cost constraints, the spectrograph has several modes, including a precision radial velocity mode and a two object mode. ...

... Full details of the observations, data reduction and calibration of this survey, and the production of the 7C(G) compact source list, are described in Vessey & Green (1998, MNRAS, 294, 607) . ... b |<5њ, with a resolution of about 1.2 ? ... The survey consisted of 24 fields, spaced 3њ.5 in l , and alternating between b = +3њ and -3њ, but with a gap near l = 110њ. ... Please refer to the source list description for details of the entries ; the catalogue itself is available as: . ...

... After hearing and discussing Rocket-Space Corporation Energy General Designer U.P.Semevov's report on the fulfilling the flight program of the orbital complex Mir and proposals on its further exploitation, the Council draws attention to: . ... According to the Russian Government Resolution No. 76 of January 21, 1999 a large amount of work to find and attract Russian and foreign investments to provide the further exploitation of the orbital station Mir was carried out. ...

spaceweb@oulu.fi - last update: 13 September 1998, 1130 UT (RR) . Ground based magnetometer measurements are used to derive several indices that describe magnetic activity in the Earth 's environment. aa , AE , Ak(Hel) , Kp , Dst , PC , MT . ... AE index is an auroral electrojet index obtained from a number (usually greater than 10) of stations distributed in local time in the latitude region that is typical of the northern hemisphere auroral zone (Davis and Sugiura, 1966). ...

THE THERMAL RADIATION OF THE LUNAR SURFACE IN THE IR RANGE OF THE SPECTRUM (10-12 µm). ... 0.80 0.60 0.40 0.20 0.00 -0.20 -0.40 -0.60 -0.80 -0.80 -0.60 -0.40 -0.20 0.00 0.20 0.40 0.60 0.80 Fig.1 0.80 0.60 0.40 0.20 0.00 -0.20 -0.40 -0.60 -0.80 -0.80 -0.60 -0.40 -0.20 0.00 0.20 0.40 0.60 0.80 Fig.2 0.60 0.40 0.20 -0.00 -0.20 -0.40 -0.60 -0.60 -0.40 -0.20 -0.00 0.20 0.40 0.60 0.80 Fig.3 Indicatrix of the thermal radiation of the Moon (10.5-12.5 µ). ...

... 2000 October 19 . The Farthest Explosion Yet Measured . ... What is known is that satellites across our Solar System reported on 2000 January 31 a tremendous explosion of gamma rays had occurred towards some previously uninteresting direction. ... The VLT not only recorded an optical counterpart , shown above , but also was able to estimate that the cosmologically-induced redshift was an astonishing 4.5 -- placing GRB000131 farther across the universe than any explosion so measured. ...

... 19.10.2000 . ... What is known is that satellites across our Solar System reported on 2000 January 31 a tremendous explosion of gamma rays had occurred towards some previously uninteresting direction. Soon one of the largest optical telescopes on Earth, a VLT in Chile, began to peer in the direction of the gamma ray burst . ... Publications with keywords: gamma-ray burst - cosmology - explosion - afterglow . Publications with words: gamma-ray burst - cosmology - explosion - afterglow . ...

... The study of the Large-scale structure of the Universe and measurements of the Dark Energy equation of state; The exploration of the growth and cosmological evolution of supermassive Black holes in the Universe. ... In course of the all sky survey SRG will discover about 100 000 galaxy clusters and 3 million AGNs. Galaxy clusters are the largest gravitationally bounded objects in the Universe and are best explored through the study of X-ray emission from the hot intergalactic gas. ... 2016 IKI RAN ...

Next: The pyramidal (multi-resolution) CCT Up: Multiple Mother Chirplets: The Previous: Pyramidal (multiresolution) true-rectangular TF . The method of multiple windows may be extended further to the chirplet framework. This further extension makes use of the same families of multiple windows that are used in the Thomson method, and that we first extended to the true rectangular tiling of the TF plane, but instead they will now be used within the context of the operators of Table 1. ...

... Alta E6 Imaging area 1024 x 1024 array, 24 x 24 micron pixels (actual size) 1 MHz 16-bit digitization and 1.4 MHz 12-bit digitization to 24Mbyte camera memory 100bT Ethernet interface: up to 300 kHz throughput TCP/IP or UDP protocols DHCP or fixed IP addressing No plug in cards or external controllers Programmable , intelligent cooling to 50° C below ambient · Astronomy Binning up to 10 Horizontal x ... Pixel Binning Exposure Time Frame Sizes Cooling Dark Current (nom.) ...

This is a color composite image made by Karen Gloria at Hopkins Observatory using a 6-inch refractor and a 512x512 element CCD detector. ... This is a planetary nebula (see also the Planetary Nebula page on this server). It is relatively small, measuring approximately 8x4 arcminutes. Overall, the surface brightness of the extended ionized gas emission is one of the highest for any PN and therefore this object is easily seen through even small telescopes (including most finders). ...

... Light weight and low power consumption combined with nearly quantum limited sensitivity and a wide tuning range of the superconducting local oscillator make SIR a perfect candidate for many practical applications. Superconducting Integrated Receiver (SIR) [1] comprises on one chip a low-noise SIS mixer with quasioptical antenna, an Flux-Flow Oscillator (FFO) acting as a Local Oscillator (LO) and a second SIS harmonic mixer (HM) for the FFO phase locking. ...

... Resolution - 1.5-2.0 km . Swath - 450 km . ... Swath - 550 km . ... Resolution - 370 km . ... Spectral bands - 0.6-0.7 um; 0.8-1.1 um . ... Kondor - system for collection and transmission of data from sea and ice stations . ... Downlinking to ground stations (main centers) . ... Satellite's information system operates in both direct transmission mode and recording to on-board recorder mode with later downlink to ground station. ... For more information send a mail to: info@sputnik.infospace.ru . ...

... We can help students grasp the significance of Hubble's extremely keen eye, and learn a bit about angles and math in the process, with the following in-class activity. ... Looking through binoculars or telescopes allows us to magnify a small section of the sky. To measure sizes or distances in that small section, astronomers divide a degree into 60 smaller pieces called arcminutes, and further subdivide minutes into 60 smaller sections called arcseconds. ... 30 feet = . ... 36 seconds . ...

... astro-ph . ... Aims: We aim for an understanding of the morphological and spectral properties of the supernova remnant RCW~86 and for insights into the production mechanism leading to the RCW~86 very high-energy gamma-ray emission. ... Studies of the morphological correlation between the 0.5-1~keV X-ray band, the 2-5~keV X-ray band, radio, and gamma-ray emissions have been performed as well as broadband modeling of the spectral energy distribution with two different emission models. ...

. Comment on J1924-2914 . The extended feature to the NE of the core in not seen in the 5 GHz image by Shen et al. (1997), probably because their higher resolution resolved out this component. VLBApls home page . Last modified: 16 Oct 2000

Introduction This catalogue contains mainly the atomic data needed in the astrophysical investigations of low-density plasma. It is a revised and extended version of the "Catalogue of Atomic Data for the Rarefied Astrophysical Plasma" (Golovatyj et al. ... Low-density plasma. ... In the present study we represent only the atomic data for computation of sp ectra of low-density astrophysical plasma (most known kinds of it are gaseous nebulae), their thermal and ionization structure. ...

... The described algorithm is suitable for measurements of complex images of stars. ... a) the zero-based number of stars in the complex (multicentric) image, . b) set of preliminary coordinates - x i , y i , for all stars, index i is number of a star, . ... i - index of a star in the complex image; . ... These parameters are calculated by a nonlinear method of a least squares.The main output parameters of this algorithm are x i , y i ; where the index i is number of a star in the multicentric image. ...

To see a Russian version of this page, click here . ... Graduated from Moscow State University (MSU), Faculty of Physics in 1976. Ph.D. degree - 1988, MSU. Main field of scientific activities: photometric investigations of various stars, close binary stellar systems and other astronomical objects, including research with use of fast photoelectric photometry with a high time resolution till 1 millisecond. ... New portable photometer . ... Send your mail to: tem@sai.msu.ru ...