4-6 May 2015
Union South
US/Central timezone

Neutrinos from Galactic Microquasars

5 May 2015, 16:40
The Marquee, 2nd Floor (Union South)

The Marquee, 2nd Floor

Union South

1308 West Dayton Street, Madison, WI 53706
Neutrino Astrophysics Neutrino Astrophysics


Mr Luiz da Silva (University of Wisconsin - Milwaukee)


Motivated by recent IceCube observations we re-examine the idea that microquasars are high energy neutrino emitters. By stretching to the maximum the parameters of the Fermi engine we show that the nearby high-mass X-ray binary LS 5039 could accelerate protons up to above about 20 PeV. These highly relativistic protons could subsequently interact with the plasma producing neutrinos up to the maximum observed energies. After that we adopt the spatial density distribution of high-mass X-ray binaries obtained from the deep INTEGRAL Galactic plane survey and we assume LS 5039 typifies the microquasar population to demonstrate that these powerful compact sources could provide a dominant contribution to the diffuse neutrino flux recently observed by IceCube.

Primary author

Mr Luiz da Silva (University of Wisconsin - Milwaukee)

Presentation Materials