... Programme . ... Presenter: Peter Robertson (James Cook University) . Abstract: The discoveries of the radio source Centaurus A and its optical counterpart NGC 5128 are closely connected to the history of astronomy in Australia. NGC 5128 was first observed in August 1826 by James Dunlop during a survey of southern objects at the Parramatta Observatory, west of the settlement at Sydney Cove. ...

... Harald Ebeling, University of Hawaii . ... Abstract . ... Identifying the host galaxies for optically dark gamma-ray bursts . ... The Architecture of Exoplanetary Systems . ... The proposers use Chandra to obtain precise positions of the GRB, and deep follow-up HST observations to search for the host galaxy. ... The calibration of thsi relation rests on observations of binary systems, primarily eclipsing binaries at masses above 1 M Sun , and primarily astrometric binaries at sub-solar masses. ...

Find Similar Abstracts (with default settings below ) . Also-Read Articles . Translate Abstract . ... Spectroscopic and speckle-interferometric observations of the multiple system ADS 11061 . ... 49A Binary star 41 Dra is a member of the hierarchical quadruple system ADS 11061 which includes 41 Dra with a very big eccentricity (e=0.9755). Since 1993 we have performed speckle interferometric observations of the system using the 6-m BTA telescope. ... Abstract Text . ... Query Results . ...

Next: ВВЕДЕНИЕ Up: ПРЯМОЕ НАБЛЮДЕНИЕ АНИЗОТРОПНОЙ Previous: ПРЯМОЕ НАБЛЮДЕНИЕ АНИЗОТРОПНОЙ . M.E. Prokhorov, & K.A. Postnov . ... The kick velocity acquired by a neutron star at birth lies within the range 50-500 km/s. Mike E. Prokhorov . Wed Aug 21 19:54:24 MSD 1996 ...

Close binary systems of the RS CVn and Algol type are characterized by a highly variable radio emission, from typical flux densities of a few mJy during low-activity (quiescent) periods, up to 1 Jy during strong flares. The origin of this radio emission is attributed to the gyrosynchrotron mechanism. Several observations of these stars have shown an evolution of the radio spectrum during both the rising and decay phases of flares. ...

... Accurate identification of physical binary star systems has become of increasing interest in recent years. ... Identification of physical binary star systems, with an estimated reliability of such identifications based on the theory of probability, is also important for current and future efforts to find binary star systems that are candidates for observations with the aim of determining their orbits and component masses. ... probability of the proximity of proper motions and ; . ...

... Jeremy ``Unbiased'' Drake and Vinay Kashyap . ... We have derived the abundance of iron relative to hydrogen in the corona of the active RS CVn binary HR 1099 (V711 Tau) using EUVE spectroscopic observations and additional X-ray constraints provided by ASCA observations. ... Existing photospheric studies also yield a similar Fe abundance of [Fe/H] ~ -0.4, suggesting at face value an absence of any coronal abundance anomaly in HR 1099 involving Fe. ... J.U. Drake and V. Kashyap 1998, in ASP Conf. ...

... 88, Jan. 1983, p. 1-15. l. A survey of extragalactic radio sources made using driven declination scans is reported covering an area of about 0.07 sr to a limiting flux density of 35 mJy. The fast-scan survey was carried out at a galactic latitude greater than 17 deg with the NRAO 91-m telescope operating at 4.755 GHz, and the 480 sources detected were reobserved at 1.4 GHz with the National Astronomy and Ionosphere Center 305-m telescope at Arecibo. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The light curves of AM CVn systems obtained using the Liverpool Telescope which showed an outburst. We show the start date of the observations in the top right of each panel and the orbital period of each system towards the right. ... The orbital period of the outbursting systems lie in the range 24тАУ44 mins and is remarkably consistent with disk-instability predictions. ... Systems which have short periods ( . ...

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... 2006 . ... Comparison of total ozone distribution in the high latitudes of both hemispheres SCAR XXIX Open Science Conference, 2006, 12-14 July, Hobart, Australia - Abstract Volume. ... Analyses of spectra, stability and eigenmode transverse small-scale oscillations in the inner Earth magnetosphere. 6th Open Conference of Space Projects Evpatoriya, September 2006, Abstracts . ... Ps6 pulsations in the Earth magnetosphere. 5th Open Conference of Space Projects Evpatoriya, September 2005, Abstracts . ...

Peremennye Zvezdy ( Variable Stars ) 33 , No. ... The new variable star HD 305629, with a Cepheid-like light curve, is demonstrated, from our optical observations and ASAS-3 data, to actually be an ellipsoidal variable star on a highly eccentric orbit. ... During a systematic search of variable stars in the publicly available ASAS-3 database (Pojmanski 2002), apparent variability was found in the star HD 305629 (10 51 34 35, -60 47 57 4, J2000.0; Fig. ... The light curve and color curves of HD 305629. ...

... Old World First Asteroid Radar Echo. ... It testifies that 4179 Toutatis is a double object like asteroid 4769 Castalia. ... Interference of Radar Echo from the Binary Asteroid 4179 Toutatis. ... An analysis of the 6-cm radar data revealed quasi-harmonic oscillation of the echo’s “central” Doppler frequency with a period of about 14 sec and a deviation of about (0.7*B) Hz, where B is the echo bandwidth, which for 4179 Toutatis was equal to 2.1 Hz and 1.9 Hz for 1992 Dec 8 and 9, respectively. ...

Proceedings of the Particle Physics and Early Universe Conference (PPEUC). For this paper: postscript PPEUC CMB index 1 Observations.. ... VLA observations at 8.4 GHz of a field within one of the Hubble MDS regions have allowed us to set upper limits on fluctuations in the CMBR on angular scales from down to . ... We interpret it as the Sunyaev--Zel'dovich signal from a high redshift cluster. Interestingly, within about of this decrement, lie two radio-quiet quasars both at . ...

... The results of radio observations of GRB 080319B in the spectral range of 8.45 GHz are presented. ... Key words: Gamma­rays ­ bursts: observations ­ radio: individual: GRB 080319B 1 Intro duction Gamma­ray bursts (GRBs) are the most luminous explosions currently known in the Universe. ... Smooth angular scanning was used not only in GRB 080319B observations, but to specify the primary standard source radio flux density as well (Kharinov et al., ...

Title: A New Model of the Gravitational Lens 0957+561 and a Limit on the Hubble Constant . Authors: Norman A. Grogin , Ramesh Narayan (Harvard Univ.) ... Title: ROSAT/PSPC observation of the distant cluster CL0939+472 . ... Title: Interaction in the Bimodal Galaxy Cluster A3528 . ... Title: Cosmological Implications of Galaxy Cluster Evolution . ... Title: Galaxy Cluster Virial Masses and Omega . ... Matches 201 to 222 from a total of 222 matches for the search pattern galaxy cluster . ...

. To see a Russian version of this page click here . (Senior Researcher. Graduated from Moscow State University (MSU) in 1982, Ph.D. 1986, MSU) . A member of EAS and IAU. Fields of interest: hot massive stars, close binary systems: optical photometric and spectral observations, X-ray observations; ill-posed problems, X-ray astrophysics. My publications (ADS link) . Linux on CLEVO 8750 (old stuff) . Phones/addresses of my university mates graduated in 1982. E-mail: igor@sai.msu.ru .

... Science . ... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Studying the Cosmological Evolution of Galaxy Clusters with (Sub-)mm Observations . ... Data Handling and Products . ... ESO Data . ... Studies of the Planck data set with optical and sub-mm follow-up observations give new insights about the early assembly of the first clusters, and the later evolution of their gas content as well as of their population of star-forming galaxies. ...

... Future seminars . P a s t seminars . Seminar council . GRB 030329 optical afterglow observations on the 1.5-m Russian-Turkish telescope RTT150 " . R. Burenin, R. Sunyaev, M. Pavlinsky, D. Denissenko, O. Terekhov, A. Tkachenko (IKI); Z. Aslan, I. Khamitov, K. Uluc (TUG); U. Kiziloglu, A. Alpar, A. Baykal (METU); I. Bikmaev, N. Sakhibullin, V. Suleymanov (KGU) . ... We present the results of the GRB 030329 optical afterglow observations on the 1.5-m Russian-Turkish telescope RTT150. ...

... Study of Mg-Fe-silicate glasses of variable composition. ... With the new data, the astrophysical discussion started in Paper I was continued and focussed on the comparison of the olivine glass data with IRAS LRS spectra of O-rich circumstellar envelopes around Mira stars. ... The new olivine glasses point to the interesting consequence that the temperature for silicate dust grains at the inner edge of circumstellar envelopes must be considerably higher than the values often given in the literature....