Skip to main content Accessibility help
×
Home

Effects of dark matter annihilation on the first stars

  • F. Iocco (a1), A. Bressan (a2) (a3), E. Ripamonti (a4), R. Schneider (a1), A. Ferrara (a3) and P. Marigo (a5)...

Abstract

We study the evolution of the first stars in the universe (Population III) from the early pre–Main Sequence (MS) until the end of helium burning in the presence of WIMP dark matter annihilation inside the stellar structure. The two different mechanisms that can provide this energy source are the contemporary contraction of baryons and dark matter, and the capture of WIMPs by scattering off the gas with subsequent accumulation inside the star. We find that the first mechanism can generate an equilibrium phase, previously known as a dark star, which is transient and present in the very early stages of pre–MS evolution. The mechanism of scattering and capture acts later, and can support the star virtually forever, depending on environmental characteristics of the dark matter halo and on the specific WIMP model.

    • Send article to Kindle

      To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

      Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

      Find out more about the Kindle Personal Document Service.

      Effects of dark matter annihilation on the first stars
      Available formats
      ×

      Send article to Dropbox

      To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

      Effects of dark matter annihilation on the first stars
      Available formats
      ×

      Send article to Google Drive

      To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

      Effects of dark matter annihilation on the first stars
      Available formats
      ×

Copyright

References

Hide All
Bertone, G., Hooper, D., & Silk, J., 2005, Phys. Rep. 405, 279
Desai, S. et al. [Super-Kamiokande Collaboration], 2004, Phys. Rev. D, 70, 109901
“First Stars III”, 2008, AIP Conf. Proc., 990, Abel, T., Heger, A., and Shea, B. W.'O. eds
Freese, K., Spolyar, D., & Aguirre, A., arXiv:0802.1724 [astro-ph]
Freese, K., Gondolo, P., Sellwood, J. A., & Spolyar, D., [Freese, A et al. (2008b)] arXiv:0805.3540 [astro-ph]
Iocco, F., 2008, ApJ, 677, L1
Iocco, F., Bressan, A., Ripamonti, E., Schneider, R., Ferrara, A., & Marigo, P., MNRAS in press, arXiv:0805.4016 [astro-ph]
Yoon, S. C., Iocco, F., & Akiyama, S., arXiv:0806.2662 [astro-ph]
Spolyar, D., Freese, K., & Gondolo, P., 2008, Phys. Rev. Lett., 100, 051101
Taoso, M., Bertone, G., Meynet, G., & Ekstrom, S., arXiv:0806.2681 [astro-ph].
MathJax
MathJax is a JavaScript display engine for mathematics. For more information see http://www.mathjax.org.

Keywords

Effects of dark matter annihilation on the first stars

  • F. Iocco (a1), A. Bressan (a2) (a3), E. Ripamonti (a4), R. Schneider (a1), A. Ferrara (a3) and P. Marigo (a5)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed