... 8 February , 2014 SAI seminar (Ryde et al 2010) 5 Thermal emission from GRB jet progenitor observer photon jet Photosphere (=1) · · · · Photons are not produced at the photosphere We have to calculate radiative transfer We need to know where the photons are produced We construct the expression for effective optical depth in relativistic flow considering random walk process in relativistic flow SAI seminar 6 8 ... 8 February, 2014 SAI seminar 28 ...

... There are preliminary series of photometric and radio spectral observations of the above-mentioned stars, archival data on the light curves of the stars, results of the search for OH and H 2 O maser emission in IRAS point sources that possess the IR parameters similar to Miras. ... The aim is a detailed study of the maser emission variability. ... In 1996-1997, astronomical observations of Mira Ceti-type stars (miras) were carried out in three spectral ranges: optical, infrared, and radio. ...

C C RECORD FORMAT FOR P R I N C I P A L M A G N E T I C S T O R M S C C Cols Fmt Description C -------------------------------------------------------------------- C 1 I1 Continuation column. Primary records are indicated C by a blank, first continuation records by a 1, and C second continuation records by a 2, etc. ... Blank indicates no data. ... C 20 A1 First amplitude sign, minus sign or blank. ... C 26 A1 Second amplitude sign, minus sign or blank. ... Blanks indicate no data. ...

GCVS Variability Types and Distribution Statistics of Designated Variable Stars According to their Types of Variability ======================================================================== I. GCVS Variability Types. ... Amplitudes usually do not exceed 0.1 mag. ... RR Variables of the RR Lyrae type, which are radially-pulsating giant A-F stars having amplitudes from 0.2 to 2 mag in V. Cases of variable light-curve shapes as well as variable periods are known. ... RV Variables of the RV Tauri type. ...

... All the galaxies are divided into 4 groups depending on the environment type; every subsample contains more than 10 galaxies. ... An effect of environments is seen both for the nuclei and for the bulges: if we consider the clusters (Virgo and Ursa Ma jor) and group centers as dense environments and the field and group periphery as sparse environments, then in the dense environments the stellar populations of S0s are in average older by 4­5 Gyr than in the sparse ones. ...

. Departement of Quantum Astrophysics . Head: Kurt V.G. , Prof. ultraviolet spectroscopy of planetary upper atmospheres and interplanetary/interstellar medium; . observations of gamma-bursts and optical identification of their sources; . long-base optical interferometry. Staff: .

documentstyle[12pt]{article} \begin{document} \centerline{\bf {STRUCTURE AND STAR FORMATION}} \centerline{\bf {IN CIRCUMNUCLEAR REGIONS OF SPIRAL GALAXIES}} \bigskip \bigskip \begin{abstract} Photometric and kinematic properties of inner regions of spiral galaxies are considered. It is shown that the fast rotation of nuclear gaseous disks makes them gravitationally stable or marginally unstable. ... Nuclear disks are usually distinguished by high angular velocity of gas. ...

... For the past few years, the National Optical Astronomy Observatory (NOAO) has hosted a program supported by the National Science Foundation and affectionately known as TLRBSE: "Teaching Leaders in Research-Based Science Education." ... And in the spring, twenty teachers from across the country participate in a sixteen-week distance-learning course, for which they receive three graduate credits from the University of Arizona. ...

... 18941904; Bespalov P.A. Effective saturation of absorption in a plasma magnetospheric maser. In book: Nonlinear Space Plasma Physics, R.Z. Sagdeev -Editor-in-Chief, American Institute of Physics, 1993, p.339-346]. Magnetospheric plasma maser [Bespalov P.A, Trakhtengerts V.Yu., ... In a magnetospheric plasma maser (MPM) the relatively dense magnetised plasma and the conjugate ends of a magnetic trap form a quasioptical resonator for electromagnetic waves. ...

Towards Practical Applications of THz Josephson Oscillators with Sub-mW Power and 500 GHz Frequency Tunability H. B. Wang1, 2, *, J. Yuan2, D. Y. An1, 2, N. Kinev3, M.Y. Li1, 2, X. J. Zhou1, M. Ji1, 2, Y. Huang1 ... Collective Quantum Phenomena in LISA+, Universitaet Tuebingen, D-72076 Tuebingen, Germany *Email: hbwang1000@gmail.com maximum detected power of 25 W, the frequency can be tuned by either bias ... Emission of coherent THz radiation from superconductors", Science 318, 1291, 2007. ...

... Bad Astronomy . Misconceptions . ... Bitesize Astronomy . ... The Nine Planets . ... The webpages on this and other sites give lots of details, but I thought it might help if I made a brief synopsis of the arguments I and others make to debunk this pseudoscientific silliness. ... The Sun is not acting in any way abnormally. There are not more earthquakes than normal. ... This is exactly the same sort of bad logic used in the earthquake argument, and is just as wrong. ... 2008 Phil Plait. ...

To main of Laboratory . The research work and design of optical and optical-electronic devices are carries out by laboratory staff: . ... Lens: . ... In the layout 1 prism systems perform functions of dispersive element, corrector of aberrations, optical reducer. ... Spectral range 200 - 400 nm; . ... Back Forward . ... The main corrector's function are compensation of field aberrations of the main spherical mirror of a telescope (diameter of 600 mm, f'=1200 mm) and increase aperture ratio. ...

Optical Observatories . ... National Optical Astronomy Observatories . ... Adam Mickiewicz University - Astronomical Observatory . ... Astronomical Institute and National Observatory of Athens . ... Jagiellonian University Astronomical Observatory - Scientific research here comprises radio and extragalactic astronomy, solar radio emission, active galactic nuclei, interstellar matter, galaxies, cosmology, variable stars and comets. ... National Radio Astronomy Observatory Home Page . ...

... On-line Data . ... The program enables to find out the exact present Earth coordinates of the international space station and "Shuttle". ... J-Track - this program is similar to the previous one, however it knows how to display images and orbits of space vehicles. ... NASA SkyWatch - a program for those, who are fond of watching artificial space objects through the telescope, field - glass or with the unaided eye. ... Info: Industry news On-line Data Company ATLAS news Events We in press Contact . ...

June 1, 1998 . ... An example of the EUV chain revealed by the modified SOHO/EIT images. ... The chains on the 171 ( a) and 195 A (b) images are very similar, but there are some differences on the 284 A image (c) . ... A comparison of the large-scale chains and threads on the modified SOHO/EIT (195 A) image (inverted) and two He I (10830 A) images (normal). ... SOHO/EIT, 171 A, June 01-03, 1998 GIF Animation (670 KB) . SOHO/EIT, 195 A, June 01-03, 1998 GIF Animation (1.76 MB) . ...

MICROSCOPES . ... NIGHT VISION DEVICES . ... OEM OPTICAL COMPONENTS . ... LOMO® has designed and manufactured optical devices ranging from microscopes and endoscopes to telescopes and night vision devices . ... Since the end of the Cold War LOMO ® has been able to continue its tradition of quality and innovation by offering its diverse products and technologies to the scientific, medical, industrial and educational communities in North America. ... LOMO PLC has received the ISO 9001 Certificate . ...

Request for Emily Hall We could not get an image of the Iris Nebula, NGC 7023, this winter. However, we do have this image of nearby IC 348, a similar nebula in Perseus. Target: IC348 Date: 2012-11-10 Time: 5:00:20 Telescope: CDK20N Camera: Apogee 16M Filters: grizb Exposure time: 100 seconds each filter Observer: John Kielkopf Processing: John Kielkopf Alsvid then ds9 mapping i->R, r->G, g->B

Общая Астрономическая Конференция > Практика > Астрономические наблюдения > Новые веяния в МРС . ... Просмотр полной версии : Новые веяния в МРС . ... 30 (MPC 43801-43802), . ... While the naming of minor planets has great popular appeal, it is clear . ... Returning to the matter of MPC funding, one MPML contributor remarked that . the MPC should make a competitive proposal for funding at a national level in . ... funding should be used to pay for the services the MPC supplies to amateur . ...

... Members . ... The ATM's of Boston was founded in 1934 by a group of persons interested in assisting others in the art of optical polishing the craft of telescope making, and to learn together about the science of astronomy and the use of astronomical instruments. ... Mr. Jones introduced the club to Dr. Harlow Shapley at Harvard College Observatory. ... Regular shop activities resumed with the help of these "professional amateurs" and the club grew to 180 members. ... Club Newsletters . ...

We present a catalogue of galaxies for which spatially resolved data on their internal kinematics have been published; there is no apriori restriction regarding their morphological type. The catalogue lists the references to the articles where the data are published, as well as a coded description of these data: observed emission (E) or absorption (A) data, optical (O) or radio (R) data, velocity (V) or velocity dispersion (D), radial profile (1) or 2D field (2). ...