News & Views | Published:


Jet precession in binary black holes

Nature Astronomyvolume 2pages443444 (2018) | Download Citation

Supermassive binary black holes are thought to lie at the centres of merging galaxies. The blazar OJ 287 is the poster child of such systems, showing strong and periodic variability across the electromagnetic spectrum. A new study questions the physical origin of this variability.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.


  1. 1.

    Fossati, G., Maraschi, L., Celotti, A., Comastri, A. & Guisellini, G. Mon. Not. R. Astron. Soc. 299, 433–448 (1998).

  2. 2.

    Sillanpää, A., Haarala, S., Valtonen, M. J., Sundelius, B. & Byrd, G. G. Astrophys. J. 325, 628–634 (1988).

  3. 3.

    Britzen, S. et al. Mon. Not. R. Astron. Soc. (2018).

  4. 4.

    Abraham, Z. Astron. Astrophys. 355, 915–921 (2000).

  5. 5.

    Caproni, A., Mosquera-Cuesta, H. J. & Abraham, Z. Astrophys. J. 616, L99–L102 (2004).

  6. 6.

    Caproni, A., Abraham, Z., Motter, J. C. & Monteiro, H. Astrophys. J. 851, L39 (2017).

Download references

Author information


  1. Astronomy Department, University of São Paulo, São Paulo, Brazil

    • Zulema Abraham


  1. Search for Zulema Abraham in:

Corresponding author

Correspondence to Zulema Abraham.

About this article

Publication history



Newsletter Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing