Static Fourier spectrometers are often used for spectral measurements of the ionosphere emissions. There are two main advantages of Fourier spectrometers (FS) - large geometric factor and high spectral resolution; these parameters are two orders better than for grating spectral instruments. ... In scanning Fourier spectrometer optical and electric modulation of signal is used to avoid this problem, for static Fourier spectrometer there are no such ways. ...

... 2005: . Using the radio telescope GMRT (India) and the 6 m telescope of SAO RAS, maps of the distribution of neutral and ionized hydrogen have been obtained in 60 nearby dwarf galaxies whose luminosities range from 1/100 to 1/10000 of that of the Milky Way. ... DDO 68 - the nearest galaxy with extremely low metallicity. ... By many parameters DDO 68 is close to the famous galaxy IZw 18, one of several candidates for young galaxies in the nearby Universe, however, it is located 2.5 times closer. ...

... Field of interest: data analysis and interpretation of X-ray observations of BHC and NS systems, astrophysics of compact objects and related phenomena: X-ray , optical and radio observations , shocks and stellar winds, emission mechanism, the spectral and timing analysis of the X-ray emission from microquasars ( signature of accreting BH), atoll- and Z-sources ( signature of accreting NS), modeling of INTEGRAL images % . ...

Цикл работ на конкурс статей . ... В заключительной работе цикла ( The Afterglows of Swift - era Gamma - ray Bursts . ... Atteia, J.-L. ; Klotz, A. ; Basa, S. ; Gendre, B. ; Verrecchia, F. ; Bo r, M. ; Cutini, S. ; Henze, M. ; Holland, S. ; Ibrahimov, M. ; Ienna, F. ; Khamitov, I. ; Klose, S. ; Rumyantsev, V. ; Biryukov, V. ; Sharapov, D. ; Vachier, F. ; Arnouts, S. ; Perley, D. A. A multiwavelength study of Swift GRB 060111B constraining the origin of its prompt optical emission . ...

XMM­Newton Calibration Technical Note PN Optical Loading XMM­SOC­CAL­TN­0051 Issue 1.2 M.J.S. Smith July 1, 2008 1 Abstract An investigation into PN optical loading has been performed through analysis of PN o#set maps. ... Fig. 1 shows an example of optical loading cases in a PN residual o#set map. ... XMM­SOC­CAL­TN­0051 Issue/Rev.: Issue 1.2 Date: July 1, 2008 Page: 2 Figure 1: PN Residual o#set map showing cases of optical loading. ... A similar finding for the MOS optical PSF is presented in [4]. ...

... One by one they took my friends away I guess this is indicative of what's happening to me == I'm going down swimming in gravy (whoa whoa) I'm swimmin around but I'm not in the Navy (whoa whoa) Now I'm alone and as naked as the day I was hatched and I prefer stuffing to potatoes but nobody asked smothered in the blood of cranberries listening to bad conversation about all the kids and the things that they did And Uncle Ron's constipation == Now it's ... I'll give you some hot dog!" ...

Find Similar Abstracts . ... Primordial black holes and the deuterium problem . ... BIG BANG COSMOLOGY, BLACK HOLES (ASTRONOMY), DEUTERIUM, PARTICLE EMISSION, ANTINUCLEONS, ASTRONOMICAL MODELS, BARYONS, HELIUM ISOTOPES, NUCLEAR FUSION, NUCLEONS, PARTICLE DENSITY (CONCENTRATION) . ... Use: Authors Title Abstract Text Text Query with Keywords Return: Query Results Query Form Database: Astronomy Instrumentation Physics and Geophysics ABSTRACT QUERY USER FEEDBACK HELP ...

... astro-ph . ... A recent change in the optical and {\gamma}-ray polarization of the Crab nebula and pulsar . ... A change in the optical polarization angle has been observed by this work, from 109.5 \pm 0.7\deg in 2005 to 85.3 \pm 1.4 \deg in 2012. ... The change in the polarized optical and {\gamma}-ray emission of the Crab nebula/pulsar as observed, for the first time, by GASP and Integral may indicate that reconnection is possibly at work in the Crab nebula. ...

RTT150 . ... The primary mirror 1 reflects light to the secondary mirror 2 which collects it on the focal surface of system with the linear field of 30 mm diameter. Focal length, mm . ... Linear field of view, mm . ... Angular field of view . ... Concentration of light energy at 632.8 nm wavelength . on the optical axis within the circles of diameter: . 0.036 mm, %, at least . ... 0.060 mm, %, at least . ...

ARCSAT ID NUMBER: AS04 DESCRIPTIVE TITLE: Short Term Variability for Stars of Similar Temperatures but Different Luminosities PI: Tiffany Clements (Pewett) (GSU) OBSERVER(S): Tiffany Clements (Pewett) (GSU), Michele Silverstein (GSU), Todd Henry (RECONS Institute) UNCERTIFIED/UNTRAINED OBSERVERS: COLLABORATORS: CONTACT INFORMATION: Tiffany Clements (Pewett), pewett@astro.gsu.edu, (419)460-0072 TIME REQUESTED: We request one week for the Q1 semester. ... FEB 29- MAR 06 4. MAR 14-20 5. ...

. Comment on J1232-0224 . Hooimeyer et al (1992a) detected the source on the Green Bank-Owens Valley baseline at 5 GHz (correlated flux density 180 mJy) and found that the nuclear emission was probably diffuse. The jet position angle in a 1.4 GHz VLA image (Hintzen, Ulvestad & Owen 1983) is similar to that in our VLBA image. Our image is consistent with the images at 2.3 and 8.4 GHz from the VLBA Calibrators database. VLBApls home page . Last modified: 16 Oct 2000

... Resonance Raman study of superconducting gap and low energy excitations in Tl 2 Ba 2 CuO 6+ d superconductors. Abstract: . ... The resonance profiles of the 2 D peak and the continuum show similar and strong resonances towards the 3.4 eV optical absorption peak in both crystals, which indicates that (1) the 2 D peak and the continuum are coupled to light scattering by the same mechanism, and (2) the light scattering mechanism for both features involves the 3.4 eV optical absorption process. ...

... Meade Series 4000 Nebular Filters incorporate the very latest in interference coatings technology. ... Technical Basis of the Meade Broadband Nebular Filter: As shown in the transmission graph below, the Meade Broadband Nebular Filter strongly rejects the light of sodium- and mercury-vapor lights as well as natural airglow and auroral emissions. ... Meade Series 4000 Narrowband Nebular Filters . ... Meade Series 4000 Oxygen-III Nebular Filters . ... Meade Series 4000 Photo-Visual Color Filters . ...

... Many extragalactic objects for which radial velocities are desired display strong emission lines. ... EMSAO, a companion to the cross-correlation task XCSAO (Kurtz et al. 1992), was written to find emission lines automatically, compute redshifts for each identified line, and combine them into a single radial velocity. ... Figure: This EMSAO Summary page shows line centers and fit information for a night sky spectrum. ... To test EMSAO adequately, a lot of emission line spectra were needed. ...

... To mark coordinate net in plot, first select Plate in menu bar and then Coordinate net in drop-down menu. ... User has possibility to save plot of sky or to print it using standard means. To save the file select File item in menu bar and then Save As... in drop-down menu. ... To print plot of plate select File item in menu bar and then take advantage of options Print Preview , Print Setup , Print. ... To return to the list of centers click on x button in title bar. ...

... MASTER Net is 56 square degrees per 1 exposition . ... 06 Dec 2015: GRB 151205B: MASTER-NET early optical observations GCN18665 . ... 18 Nov 2015: GRB 151118A: MASTER-NET optical observations GCN18613 . ... 12 Nov 2015: GRB 151112A: MASTER-NET optical limit GCN18591 . ... 07 Nov 2015: GRB 151107A: MASTER-NET optical observations GCN18565 . ... 31 Oct 2015: Five OTs detected by Global Robotic MASTER Net ATel8232 . ... 02 Oct 2015: GRB 151001B: MASTER-NET early optical observations GCN18380 . ...

... Galaxies 99 Cosmic background with model of cloudy interstellar medium Yu. ... Figure 1: Averaged spectrum of the cosmic background I f in frequency range 0.25 200 MHz for the Galactic poles. ... First interpretation of the cosmic noise background spectrum at broad band frequency range 0.25 200 MHz with a model of the cloudy interstellar medium ISM is presented here. ... Synthesized background spectra I f for regions of the Galactic poles at the frequency range 0.25 200 MHz is presented in Fig. ...

arxiv:1404.0901 Обнаружение рентгеновского излучения от первой системы из черной дыры и Ве-звезды (Discovery of x-ray emission from the first be/black hole system) . ... arxiv:1404.4933 Кандидат в двойные сверхмассивные черные дыры с миллипарсековым расстоянием в галактике SDSS J120136.02+300305.5 (A milliparsec supermassive black hole binary candidate in the galaxy SDSS J120136.02+300305.5) . ... обзор arxiv:1404.1740 Нейтринная космология и Планк (Neutrino cosmology and Planck) . ...

... From the uvby photometry and proper motions for about 5500 nearby F stars we have found the following: (i) F stars , taken in narrow ranges of metallicity , show at [fe/H] 0 rather distinct cut-off in their distribution along the Main Sequence (MS) at the blue side, which is suggested to be an indication for the MS turn-off in stellar groups of fixed metallicity ; (ii) the corresponding turn-off age from theoretical isohrones strongly correlates with the ...

LUNAR METEORITE DHOFAR 310: A POLYMICT BRECCIA WITH DEEP-SEATED LUNAR CRUSTAL MATERIAL. ... Introduction: Dhofar 310 is a new lunar highland meteorite found in the desert of Oman nearby Dh 302, 303, 305, 306 and 307. This is the first lunar meteorite that contains material derived from a deep location of the lunar crust. ... This is a fragment of spinel pyroxenite. ... The presence of spinel pyroxenite indicates that the rock contains lithologies excavated from deep units of the lunar crust. ...