Invited review at the IAU Symposium No.214: High Energy Processes and Phenomena in Astrophysics.
astro-ph/0211085.

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Abstract. Relativistic outflows are a common phenomenon in accreting black holes. Despite the enormous differences in scale, accreting stellar-mass black holes (X-ray binaries, collapsars) and super-massive black holes produce jets with analogous physical properties. Here I review microquasars as sources of relativistic jets, gamma-rays, cosmic rays, and high energy neutrinos.

Table of Contents

• THE QUASAR-MICROQUASAR ANALOGY
• THE MICROQUASAR GAMMA-RAY-BURST ANALOGY
• COMPACT JETS IN STELLAR-MASS AND SUPER-MASSIVE BLACK HOLES
• ACCRETION DISK ORIGIN OF RELATIVISTIC JETS
• MICROQUASARS AS SOURCES OF COSMIC RAYS
• MICROQUASARS AS SOURCES OF HIGH ENERGY NEUTRINOS
• MICROQUASARS AS TRANSIENT AND PERSISTENT SOURCES OF GAMMA-RAYS
• REFERENCES