The Chandra Deep Field South, observed in the U-, B-, and R-bands with Very Large Telescope's WFI and Visible Multi Object Spectrograph imagers.
Alternative names
CDF-S
Related media on Commons
[edit on Wikidata]
Three-colour composite image of the Chandra Deep Field South (CDF-S), obtained with the Wide Field Imager on the 2.2-m MPG/ESO telescope at the ESO La Silla Observatory (Chile).
The Chandra Deep Field South (CDF-S) is an image taken by the Chandra X-ray Observatory satellite. The location was chosen because, like the Lockman Hole, it is a relatively clear "window" through the ubiquitous clouds of neutral hydrogen gas in the Milky Way galaxy, which allows observers to clearly see the rest of the universe in X-rays.[1] The image is centered on RA 3h 32m 28.0s DEC −27° 48′ 30″ (J2000.0), covering 0.11 square degrees, measuring 16 arcminutes across. This patch of sky lies in the Fornax constellation.[2][3]
The image was created by compositing 11 individual ACIS-I exposures for a cumulative exposure time of over one million seconds, in the period 1999–2000, by a team led by Riccardo Giacconi.[2] This region was selected for observation because it has much less galactic gas and dust to obscure distant sources.[3] Further observations taken between 2000 and 2010 have resulted in a total of exposure of over four million seconds.[4] An additional four million seconds of exposure are scheduled to be undertaken by the end of 2015, resulting in an integrated exposure time of eight million seconds. The Chandra Deep Field South is the single target where Chandra has observed the longest.
Multispectral observations of the region were carried out in collaboration with the Very Large Telescope and the Paranal Observatory. Through the course of these investigations, the X-ray background was determined to have originated from the central supermassive black holes of distant galaxies, and a better characterization of Type II quasars was obtained.[Note 1] The CDFS discovered over 300 X-ray sources, many of them from "low luminosity" AGN lying about 9 billion light years away. The study also discovered the then most distant Type II quasar, lying at redshift z=3.7, some 12 billion light years away.[3]
In 2014 and 2015 astronomers detected four very intense burst of X-rays, currently unexplained, from a small galaxy, known as CDF-S XT1, about 11 billion light years from Earth in the Fornax constellation.[5]
^"Chandra Deep Field South - Field Selection". Retrieved 12 December 2011.
^ abStaff (March 2001). "ESO - The Chandra Deep Field South". Retrieved 10 October 2009.
^ abcStaff (May 2001). "ESO Press Release 05/01 - Chandra and the VLT Jointly Investigate the Cosmic X-Ray Background". Archived from the original on 3 September 2007. Retrieved 10 October 2009.
^"The Chandra Deep Field-South Survey". Archived from the original on 2015-02-20. Retrieved 2015-04-16.
^Overbye, Dennis (31 March 2017). "A Mysterious Flash From a Faraway Galaxy". The New York Times. Retrieved 31 March 2017.
Cite error: There are <ref group=Note> tags on this page, but the references will not show without a {{reflist|group=Note}} template (see the help page).
and 25 Related for: Chandra Deep Field South information
The ChandraDeepFieldSouth (CDF-S) is an image taken by the Chandra X-ray Observatory satellite. The location was chosen because, like the Lockman Hole...
In astronomy, a deepfield is an image of a portion of the sky taken with a very long exposure time, in order to detect and study faint objects. The depth...
55s, +62° 14m 15s) and the other on the ChandraDeepFieldSouth (3h 32m 30s, −27° 48m 20s). The two GOODS fields are the most data-rich areas of the sky...
Schematic completion from the DCM entity (Cand Dracului Faci Schema) ChandraDeepFieldSouth, an astronomical survey in the constellation Fornax CDF (disambiguation)...
decided to observe a section of the ChandraDeepFieldSouth, due to existing deep X-ray observations from Chandra X-ray Observatory and two interesting...
media related to Starburst galaxies. "Chandra :: Field Guide to X-ray Sources :: Starburst Galaxies". chandra.harvard.edu. Retrieved 2007-12-29. Kennicutt...
2000s he was principal investigator for the major ChandraDeepField-South project with NASA's Chandra X-ray Observatory. Giacconi died on December 9, 2018...
were taken, a region in the south celestial hemisphere was imaged in a similar way and named the Hubble DeepFieldSouth. The similarities between the...
most-sensitive X-ray surveys to date, including the ChandraDeepField-North and the ChandraDeepField-South. These have been used to explore the demography...
and Astrophysics. Among the many new findings published then, most in the field of star formation and astrochemistry, are the discovery of a new interstellar...
(2007). "Lyα Emission-Line Galaxies at z = 3.1 in the Extended ChandraDeepField-South". The Astrophysical Journal. 667 (1): 79–91. arXiv:0705.3917. Bibcode:2007ApJ...
Subhas Chandra Bose (/ʃʊbˈhɑːs ˈtʃʌndrə ˈboʊs/ shuub-HAHSS CHUN-drə BOHSS; 23 January 1897 – 18 August 1945) was an Indian nationalist whose defiance...
Chandra Shekhar (17 April 1927 – 8 July 2007), known as Jananayak, was an Indian politician who served as the 8th Prime Minister of India, between 10...
also been studied in the area, for example MBC2005. ChandraDeepFieldSouth - a similar clear field-of-view Interstellar medium Local Bubble Local Interstellar...
by VIMOS The Antennae Galaxies, one of VIMOS' first images The ChandraDeepFieldSouth VIMOS images the 500 million light years distant galaxy cluster...
Shaver, P.; Tozzi, P.; Miller, N. (2008). "The VLA Survey of the ChandraDeepFieldSouth: I. Overview of the Radio Data". The Astrophysical Journal Supplement...
as master of Raisen and Sarangpur region. According to historian Satish Chandra these events took place between 1518 and 1519. After the victory and restoring...
Global Information
Related media on Commons