... Programme . ... Abstract: The spectral energy distribution of the nucleus of Centaurus A, extending from radio to -rays, is similar to that of blazars, although the position of the low energy maximum is not well defined because of the uncertainty in the optical absorption. ... The observing technique consisted of scans with 24 arcmin amplitude, centered at the core and passing through the two inner lobes, which were used for instantaneous calibration. ...

... GOODS unites extremely deep observations from NASA's Great Observatories, Spitzer , Hubble , and Chandra , ESA's Herschel and XMM-Newton , and from the most powerful ground-based facilities, to survey the distant universe to the faintest flux limits across the electromagnetic spectrum. ... The space-based observations are complemented by ground-based imaging and spectroscopy, including extensive commitments of ESO and NOAO observing time. ... 2010-04-10: Deep VLA 1.4 GHz data for GOODS-North . ...

... Science . ... Science Users Information > Science and Technical Meetings > Conferences 2002 > cosmology2002 . ... Observing with ESO Telescopes . ... Public Surveys . ... Data Handling and Products . ... Science Data Products Forum . ... ESO Data . ... ESO Data Access Policy . ... Review: Weak Lensing . ... Tangential alignement of galaxies in a STIS Parallel shear survey field: a new dark lens candidate . ... Poster: . ... New Clues on clustering evolution from the K20 and FIRES surveys . ... data ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Distributions of impact velocity on Phobos for the sample of Long Period comets (top), Jupiter Family comets (middle) and asteroids (bottom) used in our sporadic meteoroid flux model. ... 100 m as determined from spacecraft images is consistent with a 50/50 contribution from the two meteoroid populations in our model. ... Last Revised: 2014 November 20th . ...

T he Siding Spring Survey (SSS) is a Near-Earth Object search program that utilises the 0.5-m Uppsala Schmidt Telescope at Siding Spring Observatory, N.S.W., Australia. ... The mission of the Siding Spring Survey is to contribute to the inventory of near-earth objects (NEOs), or more specifically, the potentially hazardous asteroids (PHAs) and comets (PHOs) that may pose a threat of impact and thus harm to civilization. ... Based on the CSS Mission page . ... Siding Spring Survey Main Page . ...

... Proposing for VLBI Time at Arecibo . ... Documentation (Field System, VLBA4 terminal, Mark 5 system) . ... In 2001, the Arecibo Observatory received its hybrid VLBA-MARK IV (VLBA4) data acquisition system, and currently NAIC commits Arecibo to support VLBI observing up to a maximum of 4% of the 305-m's observing time. ... Tracking Time (h:mm) . ... The inclusion of the 305-m Arecibo radio telescope can dramatically boost the sensitivity of VLBI observations, even with its limited source tracking...

... It is notoriously difficult to identify weak cosmic ray events in long exposure observations. ... The method is to compare the probability distribution function (PDF) of cosmic ray events between an observation and a dark frame matched in exposure time. We illustrate the basic idea using dark exposures from a Tek 1024 1024 CCD with varying exposure lengths and read-out times. ... Figure: Histogram of cosmic ray events in a two hour dark frame. ... Original PostScript figure (78 kB) . ...

... Current APO Weather . ... Search Site . ... Information for New Users . ... Technical Staff pages . Night Logs and Mailing Lists (maintained by APO) . ... Technical Documents and Database Search . ... Observer's Documentation and Procedures . ... Problem Reporting and APO Technical Documents Database Search . ... APO Drawing/Document Management Procedures . ... APO Technical Documents Database Search . Home Astrophysical Research Consortium . ... Mail Lists (maintained by APO) . ...

... In these pages we have collected contributions by fellow amateurs supernovae hunters. These contributions concern mainly the discoveries they made and their searching activity. ... External link) . The discovery of SN1997bp in NGC 4680 (from TA Magazine, vol34, n.397) - text and images. Visual Supernova Searching With The 40 inch Telescope at Siding Spring Observatory . ... A web page on SN1995G in NGC 1643 (external link to the South Australia Astronomical Society) - text and images. ...

... Professor Esko Valtaoja (Turku University, Director of Tuorla Observatory): "The problem of high-energy emission from AGN" . ... Associate Professor Harry Lehto (Tuorla): "Radio observations of GRS1915+105" . ... Dr. Alexander Riehokainen (Tuorla, Academy Researcher): "Multiwavelength observations of the Sun over a full activity cycle" . ... Ilona Torniainen (Metsahovi, PhD student): "Inverted-spectrum radio sources" . ... A Study of solar polar zone using eclipse data with RATAN-600 . ...

From Cadolle Bel et al 2007 ApJ, 659, 549. ... Their Figure 10: Spectral energy distribution of SwJ1753.5-0127on August 11 with radio (15~GHz upper limit data point excluded), IR, optical and X-ray points (up to 535~keV) and errors. The NIR and optical flux densities (filters B, V, R, I, J, H and K) were dereddened with A_V=~1.05$\pm$0.12 mag (see text). ...