MGC 2214+3550: A New Binary Quasar | Zendy

J. A. Muñoz | Zendy; E. Falco | Zendy; C. S. Kochanek | Zendy; Joseph Lehár | Zendy; Lori K. Herold | Zendy; A. Fletcher | Zendy; B. F. Burke | Zendy

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MGC 2214+3550: A New Binary Quasar

Author(s) -

J. A. Muñoz,

E. Falco,

C. S. Kochanek,

Joseph Lehár,

Lori K. Herold,

A. Fletcher,

B. F. Burke

Publication year - 1998

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/311093

Subject(s) - quasar , astrophysics , physics , gravitational lens , redshift , sky , ovv quasar , galaxy , binary number , astronomy , arithmetic , mathematics

We report the discovery of a binary quasar, MGC2214+3550 A,B, whosecomponents have similar optical spectra at a redshift z=0.88. The quasars areseparated on the sky by 3.0", and have a magnitude difference of Delta(m_I)=0.5mag. The VLA radio map at 3.6 cm shows a single 47mJy radio source with acore-jet morphology that is coincident with the brighter optical quasar A.Gravitational lensing is ruled out by the lack of radio emission from quasar B,and the lack of any visible galaxies to act as the lens. We conclude that MGC2214+3550 A and B are physically associated. With a projected separation of12.7h^{-1} kpc (Omega_0=1), MGC 2214+3550 A,B is one of the smallest z>0.5binary quasars.Comment: 13 pages, 3 .ps figs, submitted to ApJ

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