... HST . ... Lensing Models . ... In order to interpret many of the properties of background lensed galaxies, reliable models of the lensing maps for each cluster are required. Preliminary models for each of the six Frontier Fields clusters have been provided by five independent groups prior to the HST Frontier Fields observing campaign in order to facilitate rapid analysis of the FF data by all members of the community. ... The various groups model the cluster mass distribution in different ways. ...

This animation shows a binary star being lensed by a binary lens. ... The sharp changes in the size of the lensed images of the stars lead to sharp changes in the brightness of the stars, which can be analyzed to determine many parameters about the objects doing the lensing, even though they are not bright enough to be seen. ... The graph shown above gives the predicted and observed brightness of a star in the Small Magellanic Cloud being magnified by a binary lens. ... Tutorial : Part 1 | ...

... Posts tagged ?lensing? Jun 21st, 2008| 11:10 pm | ... This is my last [ArXiv] series. ... ArXiv] 3rd week, June 2008? ... Category: arXiv , MCMC | ... Category: arXiv , Galaxies , Imaging , MCMC , Physics , Spectral | ... Algorithms arXiv Astro Bad AstroStat Bayesian CHASC Cross-Cultural Data Processing Fitting Frequentist Galaxies gamma-ray High-Energy Imaging Jargon Job Languages MC MCMC Meta Methods Misc News Nuggets Objects Optical Physics Quotes Spectral Stars Stat Timing Uncertainty X-ray . ...

... A Five Quasar Gravitational Lens . ... Credit: K. Sharon ( Tel Aviv U. ) and E. Ofek ( Caltech ), ESA , NASA Explanation: What's happening near the center of this cluster of galaxies? At first glance, it appears that several strangely elongated galaxies and fully five bright quasars exist there. In reality, an entire cluster of galaxies is acting as a gigantic gravitational lens that distorts and multiply-images bright objects that occur far in the distance. ... Galaxies Away . ...

... Тип: Линза для маски . ... Цилиндрическая линза Dragon Nfx с технологией Infinity Lens Technology, которая обеспечивает максимальный обзор, а также современный пластичный материал Лексан, который не разбивается и не ... Он подходит для любых устройств под управлением Windows Mobile, начиная с версии 2003. ...

Stellarium 0.12.3 . ... Classes . ... FileљStructure . ClassљList . ClassљIndex . ... Public Member Functions | Static Public Member Functions | ... Lens Class Reference . ... Lens (const QObject &other) . doubleљ . ... const QStringљ . ... setName (const QString &theValue) . ... static Lens *љ . ... Definition at line 30 of file Lens.hpp . The documentation for this class was generated from the following file: . home/aw/devel/stellarium/trunk/plugins/Oculars/src/ Lens.hpp . ...

... 2011 October 17 . MACS 1206: A Galaxy Cluster Gravitational Lens . ... The closer cluster's gravity will act like a huge lens , pulling images of the distant galaxy around the sides and greatly distorting them. ... The cluster MACS J1206.2-0847 is composed of many galaxies and is lensing the image of a yellow-red background galaxy into the huge arc on the right. ... APOD Retrospective: The best of Clusters of Galaxies . ... About APOD | ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Mopra radio telescope . ... Australia Telescope 20GHz Survey . ... Visiting Parkes radio telescope . ... Included in these spectra should be about ten gravitationally-lensed quasars, all with low-redshift galaxies as deflectors (as the more common lenses with high-redshift deflectors will be rejected from the survey as multiple point-sources)...

ATM Forum Message . Forums: . Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Discussion Forums | ... Post . ... Attic Find-grandpa's 12" Lenses . Forum List | ... Post Message | ... Login to Post . ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Press Release Images . ... Quasar PG1115+080 and Gravitational Lens . Left: The light from the single quasar PG 1115+080 is split and distorted in this infrared image. PG 1115+080 is at a distance of about 8 billion light years in the constellation Leo, and it is viewed through an elliptical galaxy lens at a distance of 3 billion light years. ... Right: In this NICMOS image, the four quasar images and the lens galaxy have been subtracted, revealing a nearly complete ring of infrared light. ...

. [ Back to Products ] Imaging GRIN Rod Lens . Imaging GRIN Rod Lens Specifications . NA = 0.6 . Type . Diameter, mm . Quarter- Pitch Length . (P/4), * mm . HAG 040 . 0.4 . 1.0 . HAG 060 . 0.6 . 1.5 . HAG 080 . 0.8 . 2.0 . HAG 100 . 1.0 . 2.0 . HAG 150 . 1.5 . 3.0 . *Optional are lenses with achromatic length ( P/4 + d ) . [ Back to Products ]

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. ...

Porcas (MPIfR, Germany), Garrett (JIVE, Netherlands), Patnaik (Canada) & Nair (RRI, India) have attempted to make a ``definitive'' high-resolution study of the gravitational lens system, 2016+112, using an 18-station Global VLBI Array run at 5 GHz, including the Arecibo 305-m telescope. ... There are 3 image ``regions'' (A, B & C) spread over an area of 4 arcsec. Previous VLBI observations (e.g., Garrett et al., ... Arecibo-VLBA_Saint Croix baseline. The bandwidth is 16 MHz, the . ...

... Объектив PENTAX Q Toy Lens Wide 6.3mm F7.1 (04) . Эффектный миниатюрный сменный широкоугольный объектив для фотоаппарата PENTAX Q . ... Компактные цифровые фотоаппараты . Зеркальные цифровые фотоаппараты PENTAX . ... Фотоаппараты с байонетом "К" без зеркального видоискателя . Объективы PENTAX K . ... Вспышки PENTAX . ... Бинокли PENTAX и зрительные трубы PENTAX . ... Каталог MEADE по классам . ... Pentax.ru . ... Copyright PENTAR ї2004-2016. (бинокли, цифровые фотоаппараты, телескопы) . ...

Album : asv-album :: Technical photos :: 2011 ::lenses . ... 701 4816 . 701 4827 . 701 4828 . 701 4829 . 701 4830 . 701 4831 . 701 4832 . 701 4833 . 701 4834 . 701 4835 . 701 4836 . 701 4837 . 701 4838 . 701 4839 . 701 4840 . 701 4847 . 701 4848 . 701 4849 . 701 4850 . 701 4851 . 701 4852 . ... Photo album generated by album tool from Dave 's Marginal Hacks on Mon Jan 19 20:21:27 2015 . ...

. Gravitational Lensing and Dark Matter . Gravitational lensing by objects having intermediate massises is discussed in: . Yu.Baryshev, Yu.Ezova, "Gravitational Mesolensing by King Objects and Quasar-Galaxy Associations" Astronomy Reports, Vol. 41, No 4, 1997, pp. 436 - 446. Catalog of associations of Quasars and Galaxies see QSO_Gal.txt and file with description QSO_Gal_readme.txt

... Tonight's Sky . ... The Magazine . News . Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Astronomy for Kids . ... gravitational lensing . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

. Index . Previous . 11 of 12 . Next . б© Miruna Popescu, Armagh Observatory

. The recently discovered supernova SN Refsdal and its lensed host galaxy is such a beautiful demonstration of the power of gravitational lensing. In this 15min talk, I will tell you everything we know about this specific demonstration.

. B0101ћ8-3012 . Redshift = 0.89, Separation = 16 arcsec. Projected separation is 71/h kpc. The difference in the measured velocities is 300?850 km/s. From the flux ratios, it is clear that the continuum shapes are also remarkably similar. | Front page | . | << - QSO close pairs | . Robert J. Smith, ">rsmith@mso.anu.edu.au Last modified: Fri Sep 24 11:39:02 EST 1999 .