Matches in SemOpenAlex for { <https://semopenalex.org/work/W4378464555> ?p ?o ?g. }
- W4378464555 abstract "The magnetic field conditions in astrophysical relativistic jets can be probed by multiwavelength polarimetry, which has been recently extended to X-rays. For example, one can track how the magnetic field changes in the flow of the radiating particles by observing rotations of the electric vector position angle $Psi$. Here we report the discovery of a $Psi_{mathrm x}$ rotation in the X-ray band in the blazar Mrk 421 at an average flux state. Across the 5 days of Imaging X-ray Polarimetry Explorer (IXPE) observations of 4-6 and 7-9 June 2022, $Psi_{mathrm x}$ rotated in total by $geq360^circ$. Over the two respective date ranges, we find constant, within uncertainties, rotation rates ($80 pm 9$ and $91 pm 8 ^circ/rm day$) and polarization degrees ($Pi_{mathrm x}=10%pm1%$). Simulations of a random walk of the polarization vector indicate that it is unlikely that such rotation(s) are produced by a stochastic process. The X-ray emitting site does not completely overlap the radio/infrared/optical emission sites, as no similar rotation of $Psi$ was observed in quasi-simultaneous data at longer wavelengths. We propose that the observed rotation was caused by a helical magnetic structure in the jet, illuminated in the X-rays by a localized shock propagating along this helix. The optically emitting region likely lies in a sheath surrounding an inner spine where the X-ray radiation is released." @default.
- W4378464555 created "2023-05-27" @default.
- W4378464555 creator A5001682364 @default.
- W4378464555 creator A5002514037 @default.
- W4378464555 creator A5005121499 @default.
- W4378464555 creator A5006437994 @default.
- W4378464555 creator A5006641550 @default.
- W4378464555 creator A5006696699 @default.
- W4378464555 creator A5007080708 @default.
- W4378464555 creator A5007322942 @default.
- W4378464555 creator A5007390660 @default.
- W4378464555 creator A5008052402 @default.
- W4378464555 creator A5008108305 @default.
- W4378464555 creator A5008582712 @default.
- W4378464555 creator A5010587713 @default.
- W4378464555 creator A5011270437 @default.
- W4378464555 creator A5012203328 @default.
- W4378464555 creator A5012346679 @default.
- W4378464555 creator A5013129785 @default.
- W4378464555 creator A5013274230 @default.
- W4378464555 creator A5013320112 @default.
- W4378464555 creator A5013947899 @default.
- W4378464555 creator A5015991149 @default.
- W4378464555 creator A5016889508 @default.
- W4378464555 creator A5017219138 @default.
- W4378464555 creator A5017499389 @default.
- W4378464555 creator A5018324841 @default.
- W4378464555 creator A5019071157 @default.
- W4378464555 creator A5019085291 @default.
- W4378464555 creator A5019339041 @default.
- W4378464555 creator A5019421668 @default.
- W4378464555 creator A5019648923 @default.
- W4378464555 creator A5019952559 @default.
- W4378464555 creator A5020173077 @default.
- W4378464555 creator A5020839110 @default.
- W4378464555 creator A5020887298 @default.
- W4378464555 creator A5021909416 @default.
- W4378464555 creator A5023669104 @default.
- W4378464555 creator A5024165306 @default.
- W4378464555 creator A5025321333 @default.
- W4378464555 creator A5025652460 @default.
- W4378464555 creator A5025775625 @default.
- W4378464555 creator A5026031896 @default.
- W4378464555 creator A5027255654 @default.
- W4378464555 creator A5027604773 @default.
- W4378464555 creator A5028750791 @default.
- W4378464555 creator A5030169287 @default.
- W4378464555 creator A5030813123 @default.
- W4378464555 creator A5031221307 @default.
- W4378464555 creator A5031941627 @default.
- W4378464555 creator A5032322585 @default.
- W4378464555 creator A5033095430 @default.
- W4378464555 creator A5034388424 @default.
- W4378464555 creator A5034427738 @default.
- W4378464555 creator A5034690236 @default.
- W4378464555 creator A5034936145 @default.
- W4378464555 creator A5034974876 @default.
- W4378464555 creator A5034991802 @default.
- W4378464555 creator A5035571364 @default.
- W4378464555 creator A5036052452 @default.
- W4378464555 creator A5037063731 @default.
- W4378464555 creator A5037102735 @default.
- W4378464555 creator A5037491568 @default.
- W4378464555 creator A5037862729 @default.
- W4378464555 creator A5038788038 @default.
- W4378464555 creator A5039133137 @default.
- W4378464555 creator A5041315673 @default.
- W4378464555 creator A5041320985 @default.
- W4378464555 creator A5042005600 @default.
- W4378464555 creator A5042648081 @default.
- W4378464555 creator A5043876924 @default.
- W4378464555 creator A5044171868 @default.
- W4378464555 creator A5044397718 @default.
- W4378464555 creator A5044550575 @default.
- W4378464555 creator A5044552191 @default.
- W4378464555 creator A5045457594 @default.
- W4378464555 creator A5045482290 @default.
- W4378464555 creator A5046166045 @default.
- W4378464555 creator A5047528307 @default.
- W4378464555 creator A5047776278 @default.
- W4378464555 creator A5047842520 @default.
- W4378464555 creator A5048068822 @default.
- W4378464555 creator A5048327550 @default.
- W4378464555 creator A5048462485 @default.
- W4378464555 creator A5049297167 @default.
- W4378464555 creator A5049901789 @default.
- W4378464555 creator A5050149627 @default.
- W4378464555 creator A5050763989 @default.
- W4378464555 creator A5051655670 @default.
- W4378464555 creator A5052977075 @default.
- W4378464555 creator A5053581947 @default.
- W4378464555 creator A5054515903 @default.
- W4378464555 creator A5055117597 @default.
- W4378464555 creator A5055201833 @default.
- W4378464555 creator A5055570521 @default.
- W4378464555 creator A5055588693 @default.
- W4378464555 creator A5057505705 @default.
- W4378464555 creator A5057565996 @default.
- W4378464555 creator A5057754812 @default.
- W4378464555 creator A5059488809 @default.