3C 9
Quasar in the constellation of Pisces
title: "3C 9" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["quasars", "3c-objects", "pisces-(constellation)", "leda-objects"] description: "Quasar in the constellation of Pisces" topic_path: "general/quasars" source: "https://en.wikipedia.org/wiki/3C_9" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Quasar in the constellation of Pisces ::
| name = 3C 9 | image = | epoch = J2000 | ra = | dec = | constellation name = Pisces | z = 2.0194 240,526 km/s | type = FR II RG QSO | dist_ly = 10 billion light-years (light travel time){{cite web |title=NASA/IPAC Extragalactic Database |work=Results for 3C 009 |url=http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=3C+9&extend=no |access-date=2010-04-20 }} ~17 billion light-years (present comoving distance) | appmag_v = 17.62 | size_v = | notes = | names = 2C 26, LEDA 2817473
3C 9 is a lobe-dominated quasar{{cite web |date=2009-03-26 |title=3C 9 |publisher=XJET: X-Ray Emission from Extragalactic Radio Jets |url=http://hea-www.harvard.edu/XJET/source-d.cgi?3C_9 |access-date=2010-04-06}} located in the constellation Pisces. This quasar is classified as radio loud with a jet. It has X-ray emission located primary on two sides of its nucleus, based on Chandra observations.
The host of 3C 9 is described as a ring-like galaxy undergoing a merger. The two nuclei of the merging galaxies are estimated to be 9 kiloparsecs apart.
In 1965, it was the most distant object discovered at the time of discovery. This was the first object found with a redshift in excess of 2.
References
References
- "3C 9".
- (2003-01-01). "Chandra reveals X-rays along the radio axis in the quasar 3C 9 at z= 2.012". Monthly Notices of the Royal Astronomical Society.
- (November 1982). "Extended radio jets in the high-redshift quasars 3C 9 and 280.1". Monthly Notices of the Royal Astronomical Society.
- (March 2021). "A Spatially Resolved Survey of Distant Quasar Host Galaxies. II. Photoionization and Kinematics of the ISM". The Astrophysical Journal.
- ''Time'' magazine, [https://web.archive.org/web/20080423044527/http://www.time.com/time/magazine/article/0,9171,898892,00.html The Quasi-Quasars], Friday, June 18, 1965
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