Multifaceted Understanding of Accreting Neutron Stars and Their Environments: An X-ray Polarimetric Focus

Mason Ng (Massachusetts Institute of Technology)

Dec 7, 2023 3:30 PM
Location: TSI Conference Room
Special Seminar

X-ray imaging, timing, and spectroscopy of neutron stars have contributed immensely to our understanding of these dense, compact objects since the dawn of X-ray astronomy. However, many questions remain about the accretion geometry, magnetic field configurations, and particle acceleration mechanisms in accreting neutron stars. X-ray polarization has opened a new window into understanding accreting neutron stars, breaking degeneracies that exist in timing and spectroscopic analyses. The Imaging X-ray Polarimetry Explorer (IXPE), the first X-ray polarization mission in over 40 years, has observed over a dozen accreting neutron stars in its first two years of operations. I will describe some of the results from IXPE observations of accreting neutron stars thus far and discuss implications for our understanding of their accretion geometries. In particular, I will highlight results from one of the first-observed IXPE targets, 4U 1626-67, in which I showed that the observed low polarization levels are consistent with a hybrid accretion geometry, contrary to expectations.




Upcoming Events

APIERY Discussion

Feb 21, 2024 2:00 PM
Location: TSI Lounge
Other Event
Read More ⇒

Astro-ph discussion

Feb 21, 2024 3:30 PM
Other Event
Read More ⇒

TSI Seminar

Alison Man (UBC)

Feb 27, 2024 3:30 PM
Seminar Event
Read More ⇒

Public Observing Night

Feb 27, 2024 7:30 PM
Outreach Event
Read More ⇒

APIERY Discussion

Feb 28, 2024 2:00 PM
Location: TSI Lounge
Other Event
Read More ⇒

Astro-ph discussion

Feb 28, 2024 3:30 PM
Other Event
Read More ⇒

TSI Trivia Night: Eclipse Edition

Feb 28, 2024 7:30 PM to 9:30 PM
Outreach Event
Read More ⇒

APIERY Discussion

Mar 6, 2024 2:00 PM
Location: TSI Lounge
Other Event
Read More ⇒

Astro-ph discussion

Mar 6, 2024 3:30 PM
Other Event
Read More ⇒

TSI Seminar

Claude-Andre Faucher-Giguere (Northwestern University)

Mar 12, 2024 3:30 PM
Seminar Event
Read More ⇒

APIERY Discussion

Mar 13, 2024 2:00 PM
Location: TSI Lounge
Other Event
Read More ⇒

Astro-ph discussion

Mar 13, 2024 3:30 PM
Other Event
Read More ⇒

TSI Public Talk

Nicolas Cowan (McGill University, TSI)

Mar 14, 2024 7:00 PM
Outreach Event
Read More ⇒

TSI Seminar

Anson D’Aloisio (UC Riverside)

Mar 19, 2024 3:30 PM
Seminar Event
Read More ⇒

APIERY Discussion

Mar 20, 2024 2:00 PM
Location: TSI Lounge
Other Event
Read More ⇒

Astro-ph discussion

Mar 20, 2024 3:30 PM
Other Event
Read More ⇒

TSI Seminar

Mar 26, 2024 3:30 PM
Seminar Event
Read More ⇒

Public Observing Night

Mar 26, 2024 7:30 PM
Outreach Event
Read More ⇒

APIERY Discussion

Mar 27, 2024 2:00 PM
Location: TSI Lounge
Other Event
Read More ⇒

Astro-ph discussion

Mar 27, 2024 3:30 PM
Other Event
Read More ⇒