Astrophysical Polarimetry in the Time-Domain Era

Session

Polarization and X-ray binaries

30 Aug 2022, 10:00

Politecnico di Milano - Polo territoriale di Lecco

Conveners

Polarization and X-ray binaries

• Paolo D'Avanzo (INAF / Brera Astronomical Observatory)

Polarization and X-ray binaries

• Paolo D'Avanzo (INAF / Brera Astronomical Observatory)

97. Low mass X-ray binaries: a polarimetric view

Maria Cristina Baglio (Istituto Nazionale di Astrofisica (INAF))

30/08/2022, 10:00

Oral

Low mass X-ray binaries are binary systems hosting a compact object (a stellar mass black hole or a neutron star) which accretes mass from a low-mass companion star through an accretion disc.
These systems are perfect laboratories to study accretion mechanisms, and how these are coupled with ejections in the form of jets and/or winds. Optical and near-infrared (NIR) observations are of great...

104. High-precision optical polarimetry of black hole X-ray binaries

Mr Vadim Kravtsov (University of Turku)

30/08/2022, 11:00

Oral

Stellar-mass black holes in low-mass X-ray binaries are natural laboratories for studying the interaction of matter and radiation under extreme physical conditions. These systems spend most of their lifecycle residing in the inactive (quiescent) state, sometimes suddenly bursting out, increasing their brightness by several orders of magnitude over the entire spectrum. Their optical and...

84. Black hole spin–orbit misalignment in the X-ray binary MAXI J1820+070

Juri Poutanen (University of Turku)

30/08/2022, 11:20

Oral

The observational signatures of black holes in X-ray binary systems depend on their masses, spins, accretion rate, and the misalignment angle between the black hole spin and the orbital angular momentum. We present optical polarimetric observations of the black hole X-ray binary MAXI J1820+070 with high-precision polarimeter DIPol-UF at the Nordic Optical Telescope, from which we constrain the...