... Up: Data Analysis and Processing Techniques . ... Also, a method for quality control of CCD observations is suggested. ... Everyone who observes a celestial object using a CCD detects moving celestial objects as a ``by product''. ... We hope that our investigations may be useful for near-Earth space control and also for searches of the moving celestial objects through analysis of old and new CCD frames obtained at any amateur or professional astronomical observatory. ...

The Study of the Probability of an Asteroid Collision with a Planet by Monte Carlo Method . ... The close approach of asteroid (99942) Apophis to the Earth on April 13, 2029, and 2007 WD5 to Mars on January 30, 2008, have been researched taking into account the sets of observations giving maximal estimates of encounter probability. Our estimates of probability obtained by the Monte Carlo method resemble those published on the web site of JPL, NASA. ...

... In this work, we investigate some a new possibility to estimate correlations between radio source position catalogs (RSC). ... Catalogs AUS AUS AUS AUS AUS AUS BKG BKG BKG BKG BKG GSF GSF GSF BKG GSF IAA MAO OPA USN GSF IAA MAO OPA USN IAA MAO OPA USN MAO OPA USN OPA USN GSF IAA IAA IAA MAO With correlations, the system to be solve consists of the equations: The key point is to obtain a reliable estimates of ij. ...

... 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. ...

Find Similar Abstracts (with default settings below ) . ... Translate Abstract . ... Bispectrum speckle interferometry and future long-baseline interferometry of the carbon star IRC+10216 . ... 2003SPIE.4838.1055B We present near-infrared (JHK) bispectrum speckle-interferometry monitoring of IRC+10216 obtained with the SAO 6m telescope. The present speckle observations covering baselines up to 6m provide important complementary informations for future long-baseline interferometry. ...

Proposal Identification No.: ... Proposal Type: General Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Urgent Planetary Radar Solar System 11.5 Hours 3 Urgent Proposal for Radar Observations of Near-Earth Asteroid 2013 WT44 We propose Arecibo radar imaging and shape modeling of near-Earth asteroid 2013 WT44 during its close approach within 0.056 AU in late March of 2014. ...

... Abstract . ... An Efficient ACS Coronagraphic Survey for Debris Disks around Nearby Stars . ... The Dynamic State of the Dwarf Galaxy Rich Canes Venatici I Region . ... High-resolution HST image of the face-on debris disk in the G2 dwarf, HD 107146 . ... Simulations of a nearby dwarf galaxy, a nearby giant galaxy and a distant giant galaxy; note that the last is similar in angular size to the dwarf, but has a much smoother brightness distribution (simulations from Ned Wright's ABC of distances . ...

... Figure 8: Can you detect the motion of the near-Earth asteroid 2000PH against the background stars during its close approach to Earth around 27 July 2004? ... Down) observed and imaged the unusual near-Earth asteroid 2000PH during its close approach to the Earth around 27 July 2004. The observations were carried out remotely using the new 2m aperture Faulkes telescope situated on the 10,000-foot summit of Haleakala, on the island of Maui in Hawaii. ...

... Bojan Nikolic web pages (r. 329) . ... We present a Bayesian approach to calculating the coefficients that convert the outputs of ALMA 183 GHz water-vapour radiometers into estimates of path fluctuations that can be used to correct the observed interferometric visibilities. ... Inference of Coefficients for Use in Phase Correction . ... Simulating Atmospheric Phase Errors, Phase Correction and the Impact on ALMA Science . ... Copyright 2005 -- 2016, Bojan Nikolic feedback welcome ...

... 3) National Radio Astronomy Observatory, P.O. Box O, Socorro, NM 87801, USA . ... At 3.6 and/or 6~cm we detect a total of 34 discrete sources, 13 of which are found in five separate extended complexes. ... The fact that, when observed with a compact VLA configuration, the IRAS sources with ``UCHII colors'' are found to be associated with arcminute-scale extended sources, rather than with compact or unresolved radio sources, may have important implications on the estimated lifetime of UCHII regions. ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Australia Telescope Compact Array . Mopra radio telescope . ... Australia Telescope Online Archive (ATOA) . ... The J = 1-0 rotational transition of carbon monoxide has been used to trace the molecular gas at 5 different positions in the Circinus galaxy using the Australia Telescope National Facility's 22-m radio-telescope at Mopra. ... Observations . ...

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 . ...

SN 1989B Light Curve Analysis. ... In the light curve depicting their observations, definite trends are noted, here is a "thumb-nail" analysis of the the magnitude estimations of the bright SN (1989B) in the galaxy NGC 3627 (M66). ... The observations were inserted against the V magnitude templete of BL, CCD photometric data, (Wells et. al, (1994) and a color trend (B-V) histogram of the mean type Ia SN (BL)(nutemp.gif). Key Words: Amateur Observations, Supernova, Magnitude Estimates, 1989B . ...

... Contact A Problem of an estimation of accuracy of the asteroid CCD observations . The Minor Planet Center supported by the Interntional Astronomical Union is the main office for keeping observational data of the small Solar System bodies and their investigations. ... At Pulkovo Observatory we are estimating an accuracy of the CCD asteroid observations obtained by amateurs and professional astronomers all over the World using the MPC database. ...

... Suspected G36.6-0.7 has the spectral index -0.8, it seems to be a background extragalactic source because the spectral index is too steep for SNR. ... During the last years the RATAN-600 has been used to carry out a new survey of the Galactic plane at 960 and 3900 MHz from l=342^o to l=19^o, |b| < 5.5^o, to search for new SNRs and to study the SNRs that have just been detected. Column (1) lists Galactic notation names of the new and well--known SNRs from Green's catalog; . ...

Find Similar Abstracts . ... 26, Jan. 1983, p. 77-83. ... CAUSTICS (OPTICS), COSMOLOGY, PARTICLE MOTION, GEOMETRICAL OPTICS, GRAVITATIONAL EFFECTS, UNIVERSE . ... The analogy between caustics in geometrical optics and the singularities that arise in irrotational flows in a cold collisionless medium is discussed. ... 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 ...

... Future seminars . ... G.V. Levina (Institute of Continuous Media Mechanics) . ... Abstract . ... The INTEGRAL mission and its first results" . ... Reconnection - new basic results and solar simulations " . October, 30 . ... D.L. Vainchtein (IKI RAN; Dept. of Mechanical and Environmental Engineering, University of California Santa Barbara, USA) . ... New results on Solar Structure and Dynamics and Solar Space Observatories " . ... E.B. Gliner (Theoretial Research Institute, San Francisco) . ...

... Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: ALMACAL: the evolution of the molecular gas in galaxies using ALMA calibrator observations . ... ALMA . ... ESO-MIDAS . ... It is therefore essential to probe the evolution of cold gas over cosmic time. ... We are looking for an enthusiastic PhD student who is interested in working with us in using ALMACAL to address exciting and topical science questions related to the evolution of molecular gas in galaxies. ...

... In the light curve depicting their observations, definite trends are noted, here is a "thumb-nail" analysis of the the magnitude estimations of the bright SN (1989B) in the galaxy NGC 3627 (M66). ... 10 (IAUC # 4742) 2/25 13.3 16 j 2/27 13.5(*) 18 lc 2/28 13.8 19 p 3/1 13.2 20 w 3/2 13.5 21 a 3/4 13.8 23 p 3/6 13.3 25 c 3/7 13.3 26 c 3/8 14.1 27 m 3/8 13.3 27 r 3/9 13.4 28 c 3/9 14.1 28 m 3/10 13.6 29 j 3/10 14.0 29 a 3/11 13.6 30 c 3/11 13.5 30 r 3/11 13.7 30 s 3/13 [13.69 CCD Mag.] ...

... Posts tagged ?distance estimation? ... Since I began to subscribe arxiv/astro-ph abstracts, from an astrostatistical point of view, one of the most frequent topics has been photometric redshifts . ... Tags: cosmology , distance estimation , Lutz-Kelker bias , machine learning , Malmquist bias , Photometric Redshift , spectrum , survey , VO . ... Comment . ... Entries RSS . Comments RSS . ... General comments . ... vlk on [MADS] Parallel Coordinates . ... Entries (RSS) and Comments (RSS) . ...