Asset Details
Do you wish to reserve the book?
Constraining the geometry of the dipping atoll 4U 1624-49 with X-ray spectroscopy and polarimetry
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Constraining the geometry of the dipping atoll 4U 1624-49 with X-ray spectroscopy and polarimetry
Do you wish to request the book?
Constraining the geometry of the dipping atoll 4U 1624-49 with X-ray spectroscopy and polarimetry
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Paper
Constraining the geometry of the dipping atoll 4U 1624-49 with X-ray spectroscopy and polarimetry
2024
Overview
We present the spectro-polarimetric results obtained from simultaneous X-ray observations with IXPE, NuSTAR and NICER of the dipping neutron star X-ray binary 4U 1624-49. This source is the most polarized Atoll source so far observed with IXPE, with a polarization degree of 2.7% \\(\\pm\\) 0.9% in the 2-8 keV band during the non-dip phase and marginal evidence of an increasing trend with energy. The higher polarization degree compared to other Atolls can be explained by the high inclination of the system (\\(i \\approx 60\\){\\deg}). The spectra are well described by the combination of a soft thermal emission, a Comptonized component, plus reflection of soft photons off the accretion disk. During the dips, the hydrogen column density of the highly-ionized absorber increases while the ionization state decreases. The Comptonized radiation seems to be the dominant contribution to the polarized signal, with additional reflected photons which significantly contribute even if their fraction in the total flux is not high.
Publisher
Cornell University Library, arXiv.org
Subject
