Astrophysical Polarimetry in the Time-Domain Era

Session

Polarization and surveys, etc.

30 Aug 2022, 16:50

Politecnico di Milano - Polo territoriale di Lecco

Conveners

Polarization and surveys, etc.

• Heloise Stevance (University of Auckland)

Polarization and surveys, etc.

• Heloise Stevance (University of Auckland)

99. Everything Everywhere All At Once: Widefield Broadband Time-Domain Spectropolarimetry of the Radio Sky

Prof. Bryan Gaensler (University of Toronto)

30/08/2022, 16:50

Oral

Radio astronomy has begun to explore an exciting frontier, in which we can not only probe polarimetry in the time domain, but are doing so across enormous fields of view and with extremely broad instantaneous wavelength coverage. This has led to the discovery of new populations of magnetised objects that are extremely rare or that have very unusual properties. I will present some of the...

65. Magnetic Polarization in the Dense Interstellar Medium

Dr Thushara Pillai (Max Planck Institute for Radio Astronomy, Bonn)

30/08/2022, 17:25

Oral

Our understanding of star formation has been revolutionized by the insight that star-forming cores and hubs are embedded in complex filamentary networks. Fragmentation as well as level of star formation within these filaments differ greatly. Still, the exact role of filaments in star formation remains unclear. In particular, magnetic fields might play an important role, as indicated by...

118. Unveiling the Magnetic Fields around Galactic Center

Shih-Ping Lai (National Tsing Hua University)

30/08/2022, 18:00

Oral

We present new magnetic field measurement around the Galactic Center regions, including the 20km/s cloud, 50 km/s cloud, Sgr A*, and the Brick. Our data are obtained through the James Clerk Maxwell Telescope (JCMT) B-Fields In Star-forming Region Observations (BISTRO) survey with the POL-2 instrument. We decouple the complicated velocity structure in the Galactic center regions to estimate...

140. Interstellar polarization in imaging polarimetry of supernovae

Dr Santiago Gonzalez-Gaitan (CENTRA, IST, University of Lisbon)

31/08/2022, 09:00

Oral

Imaging polarimetry evolution of supernovae can provide invaluable information on the explosion asymmetries and the circumstellar material ejected by the progenitor. However, constraining the insterstellar polarization (ISP) from the Milky Way and the host galaxy are necessary ingredients to obtain the intrinsic polarization of any transient. Traditionally, the ISP has been estimated through...

105. Polarization patterns in the sky

Beatriz Pereira (IST - CENTRA)

31/08/2022, 09:20

Oral

Polarimetry is a powerful technique that reveals details of astronomical objects that otherwise would be concealed in standard imaging or spectroscopic observations.
However, reliable measurement of the polarization requires a good understanding of all contamination sources in our system. As the main source of light in our nocturne sky, the Moon and its patterns of polarization in the sky are...