3C 66B Explained

3C 66B
Ra:	^[1]
Z:	0.021258
Type:	FRI RG gamma-ray source
Dist Ly:	^[2]
Appmag V:	15.0 (B)
Size V:	2.4´X1.82´
Names:	^[3]

3C 66B is an elliptical Fanaroff and Riley class 1 radio galaxy^[2] located in the constellation Andromeda. With an estimated redshift of 0.021258,^[1] the galaxy is about 300 million light-years away.^[2]

The orbital motion of 3C 66B showed supposed evidence for a supermassive black hole binary (SMBHB) with a period of 1.05 ± 0.03 years,^[4] but this claim was later proven wrong (at 95% certainty).^[5]

Messier 87 (M87), about 55 million light-years away, is the largest giant elliptical galaxy near the Earth, and also contains an active galactic nucleus. The smooth jet of 3C 66B rivals that of M87.^[6]

3C 66B is an outlying member of Abell 347 which is part of the Perseus–Pisces Supercluster.^[7]

External links

• www.jb.man.ac.uk/atlas/ (J. P. Leahy)
• 3C66B = B0220+427 (Alan Bridle / 31 May 2006)
• Wikisky image of PGC 9067

Notes and References

1. Web site: NASA/IPAC Extragalactic Database. Results for PGC 9067. June 25, 2021.
2. Web site: 2009-04-16. 3C 66B. XJET: X-Ray Emission from Extragalactic Radio Jets. 2010-04-05.
3. Errando. Manel. Lindfors. Prandini. Tavecchio. A TeV source in the 3C 66A/B region. 2009. astro-ph.HE. 0907.0994.
4. Sudou . H.. Iguchi, S.. Murata, Y.. Taniguchi, Y.. Orbital Motion in the Radio Galaxy 3C 66B: Evidence for a Supermassive Black Hole Binary. Science. 300 . 5623 . 1263–1265 . 2003. 12764190. 10.1126/science.1082817. astro-ph/0306103 . 2003Sci...300.1263S . 36578161.
5. Jenet . F.. Lommen, A.. Larson, S. L.. Wen, L. . Constraining the Properties of Supermassive Black Hole Systems Using Pulsar Timing: Application to 3C 66B. The Astrophysical Journal. 606 . 2 . 799–803 . 2004. 10.1086/383020 . 2004ApJ...606..799J. astro-ph/0310276 . 119457912.
6. Perlin. Eric S.. Padgett. Georganopoulos. Sparks. Biretta. Optical Polarimetry of the Jets of Nearby Radio Galaxies. I. The Data. The Astrophysical Journal. 651 . 2 . 735–748 . 2006. 2006ApJ...651..735P. 10.1086/506587. astro-ph/0606119 . 53073859 . etal.
7. Fanti. C.. Fanti. R.. Feretti. L.. Ficarra. A.. Gioia. I. M.. Giovannini. G.. Gregorini. L.. Mantovani. F.. Marano. B.. 1982-01-01. Radio and optical observations of 9 nearby Abell clusters - A262, A347, A569, A576, A779, A1213, A1228, A2162, A2666. Astronomy and Astrophysics. 105. 200–218. 1982A&A...105..200F. 0004-6361.