Astrophysical Polarimetry in the Time-Domain Era

Session

Polarization and fundamental physics

1 Sept 2022, 11:55

Politecnico di Milano - Polo territoriale di Lecco

Conveners

Polarization and fundamental physics

• Kenji Toma

147. Polarimetric observation to hunt axion dark matter

Tomohiro FUJITA (Waseda University)

01/09/2022, 11:55

Oral

Identification of dark matter has been an outstanding problem in physics and astronomy for decades. We found that the polarimetric observations of protoplanetary disks provides a one of the most sensitive probes of a well-motivated candidate for dark matter, axion. Since axion dark matter causes the rotation of the linear polarization plane of photon (i.e. birefringence), it should deform the...

141. LIV constraints derived from INTEGRAL observations of polarized GRB

Philippe Laurent (IRFU-CEA)

01/09/2022, 12:30

Oral

In complement to spectro-imaging and timing observations, polarimetry provides a unique in-sight into the geometry and magnetic configuration of compact gamma-ray sources, such as neutron stars or black holes. Thanks to the Integral coded mask imaging technics which efficiently suppresses most of the background contribution, we have measured linearly polarized emission from the brightest...