CDHY PeVatron Workshop

Session

Microquasars

9 Oct 2025, 08:55

Nevis Labs, Columbia University

25. Microquasars as PeV accelerators: the mounting observational evidence from very-high-energy gamma-ray observations.

Laura Olivera Nieto, Laura Olivera-Nieto (Anton Pannekoek Institute for Astronomy, University of Amsterdam)

09/10/2025, 09:00

Plenary General

X-ray binary systems exhibiting jets (microquasars) have emerged as promising candidates to explain the observed cosmic-ray flux in the PeV energy range. A handful of microquasars are now known to emit multi-TeV radiation, implying in-situ acceleration of >100 TeV particles. In my talk, I will go over the existing very-high-energy (VHE) gamma-ray observations of these systems, with a focus on...

9. Recent X-ray studies of microquasars (TBD)

Naomi Tsuji (University of Tokyo/ICRR)

09/10/2025, 09:30

Plenary General

TBD

20. Microquasars and pulsar wind nebulae as PeVatrons

Gwenael Giacinti (Tsung-Dao Lee Institute, SJTU)

09/10/2025, 10:00

Plenary General

35. MHD simulations for SS 433 that model the recent IXPE polarization detection

Dr Haocheng Zhang (University of Maryland Baltimore County), Haocheng Zhang

09/10/2025, 11:00

49. Hadronic Signatures of Black Hole Jets

Kohta Murase

09/10/2025, 11:20

Plenary General

The recent diffuse gamma-ray and neutrino data support the multimessenger connection expected in hadronic scenarios. Microquasars have been of interest as very-high-energy gamma-ray emitters. We discuss implications of cosmic-ray ion acceleration in such objects as well as possible connections to active galactic nuclei.

36. Discussion of Microquasars

Naomi Tsuji (University of Tokyo/ICRR), Paolo Coppi

09/10/2025, 11:40