- Multiply imaged quasar
A multiply imaged quasar is a quasar that is undergoing gravitational microlensing , resulting in double, triple or quadruple images of the same quasar. The first such gravitational lens to be discovered was the double imaged quasar Q0957 561 in 1979 ref cite journal author Blandford, R. D. Narayan, R. year 1992 title Cosmological applications of gravitational lensing journal Annual review of astronomy and astrophysics doi 10.1146 annurev.aa.30.090192.001523 volume 30 pages 311 358 bibcode 1992ARA&A..30..311B ref A grouping of two or more quasars can result from a chance alignment, physical proximity, actual close physical interaction, or effects of gravity bending the light of a single quasar into two or more images. As quasars are rare objects, the probability of three or more separate quasars being found near the same location is very low. The first true triple quasar was found in 2007 by observations at the W. M. Keck Observatory Mauna Kea , Hawaii . ref cite news first Paul last Rincon date 2007 01 09 title Astronomers see first quasar trio publisher BBC News url http news.bbc.co.uk 2 hi science nature 6243361.stm ref LBQS 1429 008 was first observed in 1989 and was found to be a double quasar itself a rare occurrence. When astronomer s discovered the third member, they confirmed that the sources were separate and not the result of gravitational lensing. This triple quasar has a red shift of z 2.076, which is equivalent to 10.5 billion light year s. ref cite web title Triple quasar QQQ 1429 008 publisher ESO accessdate 2009 04 23 url http www.eso.org gallery v ESOPIA Quasars phot 02 07.jpg.html ref The components are separated by an estimated 30&ndash 50 kpc, which is typical of interacting galaxies. ref cite journal author Djorgovski, S. G. Courbin, F. Meylan, G. Sluse, D. Thompson, D. Mahabal, A. Glikman, E. title Discovery of a Probable Physical Triple Quasar ... Einstein ring List of quasars List of multiply imaged quasars List of multiply imaged quasars Multiple ... more details
|
- List of extrasolar planets directly imaged
This is the list of 12 extrasolar planets that were direct imaging directly observed , sorted by observed separations. This method is best work for young planets that emit infrared light and they are far from the glaring effects of the star. The most massive directly imaged planet is HR 8799 d , which masses 9 M sub J sub the least massive is Fomalhaut b , which masses 2 M sub J sub . The widest planet star separation is GJ 3483 b , which is 2500 AU the shortest separation is 2M J044144b , which is 2.0 AU. There are 4 members of the multi planet systems, all orbiting around HR 8799 . Yellow rows denote the members of the multi planet system class toccolours sortable border 1 cellspacing 0 cellpadding 2 align center style text align center border collapse collapse margin left 0 margin right auto bgcolor a0b0ff Extrasolar planet Planet Planetary mass Mass Jupiter mass M sub J sub Planetary radius Radius Jupiter radius R sub J sub Orbital period Period Year yr Observed separation Astronomical Unit AU Orbital eccentricity Eccentricity Distance to Earth ly Year of discovery CFBDS 1448 b 6.5 1.8 2.6 40 0.36 69 2011 Beta Pictoris b 8.4 2.3 16 9.5 0.13 63 2008 2M J044144b 7.5 1.9 19 2.0 0.15 450 ref http www.centauri dreams.org ?p 11959 ref 2010 bgcolor ffffb0 HR 8799 e 7.0 2.5 49 14.5 0.14 128 2010 bgcolor ffffb0 HR 8799 d 7.0 1.2 100 24.5 0.09 128 2008 bgcolor ffffb0 HR 8799 c 7.0 1.3 189 37.4 0.24 128 2008 bgcolor ffffb0 HR 8799 b 5.0 1.2 474 69.2 0.17 128 2008 Fomalhaut b 3.0 1.1 872 116.0 0.11 25 2008 2M1207b 4.2 1.5 1620 40.6 0.37 170 2004 1RXS J160929.1 210524 1RXS 1609 b 8.2 1.7 6518 331.1 0.08 470 2008 Ross 458 AB c 8.5 1.8 33081 1167.7 0.17 372 ref http exoplanet.eu planet.php?p1 Ross 458 AB &p2 c ref 2011 GJ 3483 b 7.2 1.5 105175 2481.7 0.71 63 ref http www.allplanets.ru star.php?star WD 200806 661 ref 2011 External links cite web url http exoplanet.eu catalog imaging.php title Candidates detected by imaging work The Extrasolar Planets Encyclopaedia accessdate 20 ... more details
|
- File:Two Kreutz Sungrazers imaged by SOHO.jpg
Kreutz Sungrazers SOHO 54 & 55 with prominent Comet tail tails , as seen by Solar and Heliospheric Observatory SOHO on June 1 and 2, 1998. SOHO images are copyrighted but may be used without specific permission for non commercial, educational use. http sohowww.nascom.nasa.gov data summary copyright.html SOHO Copyright Notice Twin Comets SOHO 54 & 55 http sohowww.nascom.nasa.gov hotshots 2000 02 07 LASCO Kreutz Sungrazing Comets 1998 http sungrazer.nrl.navy.mil index.php?p tables comets table 1998 Fair use rationale This image is being used here by a not for profit organization for educational and informational purposes. Non free fair use in Kreutz Sungrazers Portal Astronomy Featured May 2005 Non free with permission Category Solar System images Category Cometary images Category Star images ... more details
|
- File:Rub' al Khali (Arabian Empty Quarter) sand dunes imaged by Terra (EOS AM-1).jpg
FeaturedPicture Rub al Khali picture of the day 2010 08 22 ... more details
|
- File:NeuroglialCellsColor1.jpg
Summary Imaged brain cells Licensing cc by 3.0 ... more details
|
- File:Tomato plug.jpg
Tomato plug Imaged created 2003 by Aris Papachristou GFDL en migration relicense Orphan image ... more details
|
- File:Hyperion highres.jpg
Hyperion moon Hyperion , a moon of Saturn , imaged by Cassini Huygens Cassini PD USGov NASA Copy to Wikimedia Commons bot Svenbot Orphan image ... more details
|
- File:Looking North from Jumbo Rocks IMG 0937 060824 150334.jpg
Summary Imaged from JTNP 2006 08 24 by me K. Hashmi . More images here http www.khurramhashmi.org Licensing GFDL migration relicense Orphan image ... more details
|
- File:Diatom0010.jpg
Summary Diatoms imaged with the Phenom. Field of view is 50um. Licensing self GFDL cc by 3.0 Copy to Wikimedia Commons bot Fbot priority true ... more details
|
- File:Alberto Randegger.jpg
Summary Alberto Randegger imaged scanned from a Carl Rosa Opera Company publicity piece, c. 1879. Licensing PD US ... more details
|
- File:Phoebe Cassini June72004.png
Saturn s moon Phoebe as imaged by Cassini spacecraft June 7, 2004. NASA PD PD USGov NASA Copy to Wikimedia Commons bot Svenbot Orphan image ... more details
|
- File:Madonna sex 0241658 erotic.png
wrong license Summary Information Description The CD single Erotic included with the book Sex by Madonna. Imaged by me for Wikipedia. Source Date Author Permission other versions Licensing PD self date December 2008 ... more details
|
- File:Hyperion Closeup.jpg
Hyperion moon Hyperion , a moon of Saturn , imaged by the Cassini Huygens probe, September 25, 2005. PD USGov NASA Copy to Wikimedia Commons bot Svenbot Orphan image ... more details
|
- File:Hyperion Closeup 2.jpg
Hyperion moon Hyperion , a moon of Saturn , imaged by the Cassini Huygens Cassini probe, September 25, 2005 PD USGov NASA Copy to Wikimedia Commons bot Svenbot Orphan image ... more details
|
- File:Lonnie ice.jpg
Imaged licensed to Lonnie Thompson. Lonnie G. Thompson, Antarctic Expedition, 1974. Available at http researchnews.osu.edu archive lonthmppics.htm PD release month May day 17 year 2006 sh Datoteka Lonnie ice.jpg ... more details
|
- File:Sheosar-lake.jpg
Summary View of the entrance track of Deosai Plains Imaged by Umer Licensing PD self date June 2007 Copy to Wikimedia Commons bot Fbot priority true ... more details
|
- File:NJSenCounties06.png
PD Self date December 2006 Self created imaged showing coutny by county results for the 2006 Senate race. Copy to Wikimedia Commons bot Fbot priority true ... more details
|
- File:Fruit Fly 1.jpg
Summary The leg of a fruit fly imaged with the Phenom. Field of view 101um Licensing self GFDL cc by 3.0 Copy to Wikimedia Commons bot Fbot priority true ... more details
|
- File:Vidicon.png
Schematic of vidicon image tube. The vidicon is a storage type camera tube in which a charge density pattern is formed by the imaged scene radiation on a photoconductor photoconductive surface which is then scanned by a beam of low velocity electron s. The fluctuating voltage coupled out to a video amplifier can be used to reproduce the scene being imaged. Pyroelectric photocathode s can be used to produce a vidicon sensitive over a broad portion of the infrared spectrum. PD USGov Military Navy https ewhdbks.mugu.navy.mil vidicon.gif Copy to Wikimedia Commons bot Svenbot priority true ... more details
|
- Multiple quasar
context date November 2011 unreferenced date November 2011 When two quasar quasars are so nearly in the same direction as seen from Earth that they appear to be a single quasar but may be separated by the use of telescopes, they are referred to as a double quasar . These are two different quasars, and not the same quasar that is gravitationally lensed. This configuration is similar to the optical double star . Two quasars, a quasar pair , may be closely related in time and space, and be gravitationally bound to one another. These may take the form of two quasars in the same galaxy cluster . This configuration is similar to two prominent stars in a star cluster . A binary quasar , may be closely linked gravitationally and form a pair of interacting galaxies . This configuration is similar to that of a binary star system. See also Einstein ring List of quasars List of multiply imaged quasars List of multiply imaged quasars Multiply imaged quasar References reflist 2 Category Quasars ... more details
|
- File:HMS Caroline 1918.jpg
Summary The crew of the HMS Caroline, believed to have been taken before the end of WWI. Imaged scanned from an original crew photo, by Ian Martin. Licensing PD self date July 2007 Orphan image Copy to Wikimedia Commons bot Fbot ... more details
|
- File:MET entrance corrected.jpg
Metropolitan Museum of Art at New York. Photograph taken by User Physicistjedi and released into the public domain. Original imaged corrected for vertical distortion by User Sybz. PD self month September day 2 year 2007 date April 2009 Copy to Wikimedia Commons bot Fbot Orphan image ... more details
|
- File:Bench-press.png
Bench Press imaged released under creative commons by http www.everkinetic.com Everkinetic Source http www.everkinetic.com exercise bench press Bench Press Licensing self cc by sa 3.0 Copy to Wikimedia Commons bot Fbot priority true ... more details
|
- Cardiac input
Multiple issues unreferenced January 2010 cleanup January 2010 mergewith Cardiac output date January 2010 Cardiac input CI is the inverse operation of cardiac output CO . Cardiac output implies ejection fraction . Ejection fraction is an easily understood and inexpensively imaged mathematical model of Systole medicine systole . Ejection fraction EF end systolic volume ESV divided by end diastolic volume EDV . Cardiac output is a mathematical model of systole. Cardiac input implies injection fraction IF . IF end diastolic volume EDV divided by end systolic volume ESV . Cardiac input is a readily imaged mathematical model of diastole . Cardiovascular physiology DEFAULTSORT Cardiac Input Category Cardiology ... more details
|
- Haworth (crater)
lunar crater data image Image Haworth crater.jpg 200px Haworth Crater. caption Haworth Crater as imaged by Diviner . NASA photo . latitude 86.9 N or S S longitude 4 E or W W diameter 35 depth colong eponym Walter Haworth Haworth is an impact crater that lies at the Lunar south pole south pole of the Moon . ref cite web date January 16, 2009 url http www.astronomy.com asy default.aspx?c a&id 7833 title Chandrayaan 1 peeks inside Moon craters publisher Astronomy.com accessdate June 22, 2010 ref The crater is named after Walter Haworth . ref cite web date October 30, 2008 url http astrogeology.usgs.gov HotTopics index.php? archives 346 Two New Crater Names Approved for Earths Moon.html title Two New Crater Names Approved for Earth s Moon publisher U.S. Geological Survey accessdate June 22, 2010 ref Description The crater was imaged by Diviner . Cabeus crater Cabeus Crater is nearby. Image Lunar south pole summer annotated.jpg thumbnail right Lunar south pole as imaged by Diviner . See also Lunar south pole References reflist External links http astrogeology.usgs.gov SolarSystem Earth Moon USGS Earth s Moon Moon crater stub Category LQ30 quadrangle Category Impact craters on the Moon fa ... more details
|
Encyclopedia
top
