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

  1. "3C 9".
  2. (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.
  3. (November 1982). "Extended radio jets in the high-redshift quasars 3C 9 and 280.1". Monthly Notices of the Royal Astronomical Society.
  4. (March 2021). "A Spatially Resolved Survey of Distant Quasar Host Galaxies. II. Photoionization and Kinematics of the ISM". The Astrophysical Journal.
  5. ''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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quasars3c-objectspisces-(constellation)leda-objects