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We present a model to estimate the synchrotron radio emission generated in microquasar (MQ) jets due to secondary pairs created via decay of charged pions produced in proton-proton collisions between stellar wind ions and jet relativistic…

Astrophysics · Physics 2009-06-23 P. Bordas , J. M. Paredes , V. Bosch-Ramon , M. Orellana

Unlike high-mass gamma-ray binaries, low-mass microquasars lack external sources of radiation and matter that could produce high-energy emission through interactions with relativistic particles. In this work we consider the synchrotron…

Astrophysics · Physics 2011-03-10 Gabriela S. Vila , Gustavo E. Romero

We present a general self-consistent lepto/hadronic jet model for the non-thermal electromagnetic emission of microquasars. The model is applied to the low-mass microquasar (LMMQ) GX 339-4 and predicts its high-energy features. We assume…

High Energy Astrophysical Phenomena · Physics 2015-05-14 Gabriela S. Vila , Gustavo E. Romero

Recently, microquasar jets have aroused the interest of many researchers focusing on the astrophysical plasma outflows and various jet ejections. In this work, we concentrate on the investigation of electromagnetic radiation and particle…

High Energy Physics - Phenomenology · Physics 2021-11-02 Th. V. Papavasileiou , O. T. Kosmas , J. Sinatkas

Microquasars are sources of very high-energy gamma-rays and, very probably, high-energy gamma-ray emitters. We propose a model for a jet that can allow to give accurate observational predictions for jet emission at different energies and…

Astrophysics · Physics 2009-11-11 V. Bosch-Ramon , J. M. Paredes , G. E. Romero

Observational and theoretical studies point to microquasars (MQs) as possible counterparts of a significant fraction of the unidentified gamma-ray sources detected so far. At present, a proper scenario to explain the emission beyond soft…

Astrophysics · Physics 2009-11-11 V. Bosch-Ramon , G. E. Romero , J. M. Paredes

We present a model for high-energy emission in microquasars where the energy content of the jets is dominated by relativistic protons. We also include a primary leptonic component. Particles are accelerated up to relativistic energies in a…

Astrophysics · Physics 2009-11-13 Gabriela S. Vila , Gustavo E. Romero

In this work we present a new jet model for the non-thermal broadband emission of low-mass microquasars. We calculate the contribution of relativistic particles, primary electrons and protons as well as secondary muons, charged pions and…

High Energy Astrophysical Phenomena · Physics 2015-03-19 Gabriela S. Vila , Gustavo E. Romero

In this work we develop a lepto-hadronic model for the electromagnetic radiation from jets in microquasars with low-mass companion stars. We present general results as well as applications to some specific systems, and carefully analyze the…

High Energy Astrophysical Phenomena · Physics 2012-12-19 Gabriela S. Vila

The Galactic high-mass X-ray binary and jet source (microquasar) LSI +61 303 has recently been detected at TeV gamma-ray energies by the MAGIC telescope. We have applied a time-dependent leptonic jet model to the broadband spectral energy…

Astrophysics · Physics 2011-02-11 Swati Gupta , Markus Boettcher

Microquasars (MQs) present emission over the whole spectrum, from radio wavelengths to gamma-rays. The microquasar spectral energy distribution is very complex, being a signature of the different physical processes that generate the…

Astrophysics · Physics 2007-05-23 V. Bosch-Ramon , F. A. Aharonian , J. M. Paredes

Recently, microquasar jets have aroused the interest of many researchers focusing on the astrophysical plasma outflows and various jet ejections. In this work, we concentrate on the investigation of electromagnetic radiation and particle…

High Energy Astrophysical Phenomena · Physics 2022-03-02 Theodora Papavasileiou , Odysseas Kosmas , Ioannis Sinatkas

We introduce a new time-dependent lepto-hadronic model for blazar emission that takes into account the radiation emitted by secondary particles, such as pions and muons, from photo hadronic interactions. Starting from a baseline parameter…

High Energy Astrophysical Phenomena · Physics 2015-06-23 Christopher Diltz , Markus Boettcher , Giovanni Fossati

Most of the hadronic jet models for quasars (QSOs) and microquasars (MQs) found in literature represent beams of particles (e.g. protons). These particles interact with the matter in the stellar wind of the companion star in the system or…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Diego F. Torres , Anita Reimer

We show that high-energy neutrinos can be efficiently produced in X-ray binaries with relativistic jets and high-mass primary stars. We consider a system where the star presents a dense equatorial wind and the jet has a small content of…

Astrophysics · Physics 2009-11-13 Hugo R. Christiansen , Mariana Orellana , Gustavo E. Romero

Strong X-ray emission from large scale jets of radio loud quasars still remains an open problem. Models based on inverse Compton scattering off CMB photons by relativistically beamed jets have recently been ruled out, since Fermi LAT…

High Energy Astrophysical Phenomena · Physics 2017-01-25 Masaaki Kusunose , Fumio Takahara

If the jets of microquasars carry a significant power in the form of relativistic hadrons, then gamma rays and neutrinos can be produced by interactions with matter and photon fields either external or internal to the jet. In this paper I…

Astrophysics · Physics 2009-04-14 Gustavo E. Romero

The microquasar phenomenon is associated with the production of jets by X-ray binaries and, as such, may be associated with the majority of such systems. In this chapter we briefly outline the associations, definite, probable, possible, and…

Astrophysics · Physics 2015-06-24 Rob Fender , Tom Maccarone

The hadronic jets in a micro-quasar stellar system are modelled with the relativistic hydrocode PLUTO. We focus on neutrino emission from such jets produced by fast proton (non-thermal) collisions on thermal ones within the hadronic jet. We…

High Energy Astrophysical Phenomena · Physics 2017-06-13 Theodoros Smponias , Odysseas Kosmas

We present a hadronic model for gamma-ray production in the microquasar LS I $+61 303$. The system is formed by a neutron star that accretes matter from the dense and slow equatorial wind of the Be primary star. We calculate the gamma-ray…

Astrophysics · Physics 2009-11-13 Gustavo E. Romero , Hugo R. Christiansen , Mariana Orellana
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