207 citations · 406 across the 12 of their papers we have counts for
12 papers · 1 filter
Polarisation angle variability in tidal disruption events
A. Floris, I. Liodakis, K. I. I. Koljonen +9
Tidal disruption events (TDEs) occur when a star is disrupted by the tidal forces of a supermassive black hole, and these events produce bright multi-wavelength flares. Polarimetri…
Polarimetric Diversity in Tidal Disruption Events: Comparative Study of Low-Polarised sources with AT2020mot
A. Floris, I. Liodakis, K. I. I. Koljonen +13
Tidal disruption events (TDEs) occur when a star is disrupted by the tidal forces of a supermassive black hole (SMBH), producing bright multi-wavelength flares. Among these events,…
The peculiar hard state behaviour of the black hole X-ray binary Swift J1727.81613
A. K. Hughes, F. Carotenuto, T. D. Russell +37
Tracking the correlation between radio and X-ray luminosities during black hole X-ray binary outbursts is a key diagnostic of the coupling between accretion inflows (traced by X-ra…
Repeating flares, X-ray outbursts and delayed infrared emission: A comprehensive compilation of optical tidal disruption events
D. A. Langis, I. Liodakis, K. I. I. Koljonen +10
TDEs have been proposed as valuable laboratories for studying dormant black holes. However, progress in this field has been hampered by the limited number of observed events. In th…
Jet break revealed in the transitional millisecond pulsar candidate 4FGL J0427.8-6704
K. I. I. Koljonen, M. Linares, J. C. A. Miller-Jones
Understanding the formation and properties of relativistic jets from accreting compact objects has far-reaching implications in astrophysics. Transitional millisecond pulsars (tMSP…
The origin of optical emission lines in the soft state of X-ray binary outbursts: the case of MAXI J1820+070
K. I. I. Koljonen, K. S. Long, J. H. Matthews +1
The optical emission line spectra of X-ray binaries (XRBs) are thought to be produced in an irradiated atmosphere, possibly the base of a wind, located above the outer accretion di…
Optical polarization from colliding stellar stream shocks in a tidal disruption event
I. Liodakis, K. I. I. Koljonen, D. Blinov +9
A tidal disruption event (TDE) occurs when a supermassive black hole rips apart a passing star. Part of the stellar material falls toward the black hole, forming an accretion disk…
Discovery of optical and infrared accretion disc wind signatures in the black hole candidate MAXI J1348-630
G. Panizo-Espinar, M. Armas Padilla, T. Muñoz-Darias +11
MAXI J1348-630 is a low mass X-ray binary discovered in 2019 during a bright outburst. During this event, the system sampled both hard and soft states following the standard evolut…
Modelling the compact jet in MAXI J1836-194 with disc-driven shocks
Mathias Péault, Julien Malzac, Mickael Coriat +9
The black hole candidate MAXI J1836-194 was discovered in 2011 when it went into an outburst, and was the subject of numerous, quasi-simultaneous, multi-wavelength observations in…
AGILE detection of Cygnus X-3 γ-ray active states during the period mid-2009/mid-2010
A. Bulgarelli, M. Tavani, A. W. Chen +70
Cygnus X-3 (Cyg X-3) is a well-known microquasar producing variable emission at all wavelengths. Cyg X-3 is a prominent X-ray binary producing relativistic jets, and studying its h…
Discovery of extreme particle acceleration in the microquasar Cygnus X-3
M. Tavani, A. Bulgarelli, G. Piano +67
The study of relativistic particle acceleration is a major topic of high-energy astrophysics. It is well known that massive black holes in active galaxies can release a substantial…
Orbital modulation of X-ray emission lines in Cygnus X-3
O. Vilhu, P. Hakala, D. C. Hannikainen +2
We address the problem where the X-ray emission lines are formed and investigate orbital dynamics using Chandra HETG observations, photoionizing calculations and numerical wind-par…