activity
20132025
most citedPrecession-induced Variability in AGN Jets and OJ 287

42 citations · 187 across the 16 of their papers we have counts for

collaborators

16 papers

astro-ph.HE2025

On the nature and Galactic origin of the Be binary MWC 656. New insights from VLA, Gaia, and Fermi-LAT

Sergio A. Dzib, Frederic Jaron

The binary star MWC 656 was initially proposed as the first confirmed system composed of a Be star and a black hole. However, recent studies have challenged this interpretation, su…

astro-ph.HE2024

IceCube AGN Neutrino candidate PKS 1717+177: Dark deflector bends nuclear jet

S. Britzen, A. B. Kovačević, M. Zajaček +8

The BL Lac Object PKS 1717+177 has been identified as potential neutrino-emitting AGN in the point source stacking analysis of IceCube data. We explore peculiarities in the morphol…

astro-ph.HE2024★ 5 cited

Owens Valley Radio Observatory monitoring of LS I +61°303 completes three cycles of the super-orbital modulation

F. Jaron, S. Kiehlmann, A. C. S. Readhead

The high-mass X-ray binary LS I +61°303 is composed of a Be-type star and a compact object. The emission is variable and periodic across the electromagnetic spectrum, from radio to…

astro-ph.HE2023★ 42 cited

Precession-induced Variability in AGN Jets and OJ 287

Silke Britzen, Michal Zajaček, Gopal-Krishna +5

The combined study of the flaring of Active Galactic Nuclei (AGN) at radio wavelengths and pc-scale jet kinematics with Very Long Baseline Interferometry (VLBI) has led to the view…

astro-ph.HE2023★ 3 cited

Rapid X-ray variability of the gamma-ray binary LS I+61 303

J. Lopez-Miralles, Sara E. Motta, S. Migliari +1

The gamma-ray binary LS I+61 303 has been widely monitored at different wavelengths since its discovery more than sixty years ago. However, the nature of the compact object and the…

astro-ph.HE2021★ 7 cited

A Precessing Jet Scenario for the Multi-Wavelength Long-Term Modulation of LS I +61303

Frederic Jaron

The high-mass X-ray binary LS I +61303 is detected across the electromagnetic spectrum from radio until the very high energy gamma-ray regime. The emission is not only high…

astro-ph.HE2020★ 3 cited

Radio/X-ray correlations and variability in the X-ray binary LS I +61°303

R. Sharma, M. Massi, M. Chernyakova +6

The high-mass X-ray binary LS I +61°303 exhibits variability in its radio and X-ray emissions, ranging from minute to hour time-scales. At such short time-scales, not much is known…

astro-ph.HE2020★ 13 cited

Evidence for periodic accretion-ejection in LSI+61303

M. Massi, M. Chernyakova, A. Kraus +7

The stellar binary system LS I +61303, composed of a compact object in an eccentric orbit around a B0 Ve star, emits from radio up to gamma-ray energies. The orbital modulation of…

astro-ph.HE2018★ 9 cited

Simultaneous long-term monitoring of LS I +61°303 by OVRO and Fermi-LAT

Frederic Jaron, Maria Massi, Sebastian Kiehlmann +1

Previous long-term monitorings of the gamma-ray-loud X-ray binary LS I +61°303 have revealed the presence of a long-term modulation of ~4.5 years. After nine years of simultaneous…

astro-ph.HE2017★ 11 cited

Radio QPO in the -ray-loud X-ray binary LS I +61303

Frederic Jaron, Richa Sharma, Maria Massi +5

LS I +61303 is a -ray emitting X-ray binary with periodic radio outbursts with time scales of one month. Previous observations have revealed microflares superimposed o…

astro-ph.HE2016★ 9 cited

Understanding the periodicities in radio and GeV emission from LS I+61303

F. Jaron, G. Torricelli-Ciamponi, M. Massi

Accretion models predict two ejections along the eccentric orbit of LS I +61 303: one major ejection at periastron and a second, lower ejection towards apastron. We develop a physi…

astro-ph.HE2015★ 22 cited

Radio Emission from the Be/Black Hole Binary MWC 656

S. A. Dzib, M. Massi, F. Jaron

Context. MWC 656 is the recently discovered first binary system case composed of a Be-type star and an accreting black hole. Its low X-ray luminosity indicates that the system is i…

astro-ph.HE2015

The apparent discontinuity in the periodicity of the GeV emission from LS I +61°303

Frederic Jaron, Maria Massi

The gamma-ray binary LS I +61°303 shows a discontinuity of the periodicity in its GeV emission. In this paper, we show that during the epochs when the timing analysis fails to dete…

astro-ph.HE2015★ 14 cited

Long-term OVRO monitoring of LSI+61303: confirmation of the two close periodicities

M. Massi, F. Jaron, T. Hovatta

Context: The gamma-ray binary LSI+61303 shows multiple periodicities. The timing analysis of 6.7 yr of GBI radio data and of 6 yr of Fermi-LAT GeV gamma-ray data both have found tw…

astro-ph.HE2014★ 16 cited

Discovery of a periodical apoastron GeV peak in LS I +61°303

F. Jaron, M. Massi

Aims. The aim of this paper is to analyse the previously discovered discontinuity of the periodicity of the GeV -ray emission of the radio-loud X-ray binary LS I +61°303 and to…

astro-ph.HE2013★ 33 cited

Long-term periodicity in LSI+61303 as beat frequency between orbital and precessional rate

M. Massi, F. Jaron

Context: In the binary system LSI+61303 the peak flux density of the radio outburst, which is related to the orbital period of 26.4960 +/- 0.0028d, exibits a modulation of 1667 +/-…