Skip to main content

Thank you for visiting You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.


Tracking our neighbours' past

The collective motions of dwarf galaxies in planes around the Andromeda galaxy and the Milky Way have presented a challenge to theory. Interactions between galaxy groups in the distant past may have left their imprint on these dwarfs.

This is a preview of subscription content

Access options

Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.

Figure 1



  1. Ibata, R. A. et al. Nature 493, 62–65 (2013).

    ADS  Article  Google Scholar 

  2. Kroupa, P., Theis, C. & Boily, C. M. Astron. Astrophys. 431, 517–521 (2005).

    ADS  Article  Google Scholar 

  3. Shaya, E. J. & Tully, R. B. Mon. Not. R. Astron. Soc. 436, 2096–2119 (2013).

    ADS  Article  Google Scholar 

  4. Planck Collaboration Astron. Astrophys. Preprint at (2013).

  5. Moore, B. et al. Astrophys. J. 524, L19–L22 (1999).

    ADS  CAS  Article  Google Scholar 

  6. Klypin, A. et al. Astrophys. J. 522, 82–92 (1999).

    ADS  CAS  Article  Google Scholar 

  7. de Blok, W. J. G. et al. Astron. J. 136, 2648–2719 (2008).

    ADS  CAS  Article  Google Scholar 

  8. Boylan-Kolchin, M., Bullock, J. S. & Kaplinghat, M. Mon. Not. R. Astron. Soc. 415, L40–L44 (2011).

    ADS  Article  Google Scholar 

Download references

Author information

Authors and Affiliations


Corresponding author

Correspondence to Alan McConnachie.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

McConnachie, A. Tracking our neighbours' past. Nature 504, 226–227 (2013).

Download citation

  • Published:

  • Issue Date:

  • DOI:


Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

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