Journal article
Relevance of photon-photon dispersion within the jet for blazar axionlike particle searches
- Abstract:
- Axionlike particles (ALPs) could mix with photons in the presence of astrophysical magnetic fields. Searching for this effect in gamma-ray observations of blazars has provided some of the strongest constraints on ALP parameter space so far. Previously, photon-photon dispersion of gamma rays off of the cosmic microwave background has been shown to be important for these calculations and is universally included in ALP-photon mixing models. Here, we assess the effects of dispersion off of other photon fields within the blazar (produced by the accretion disk, the broad line region, the dust torus, starlight, and the synchrotron field) by modeling the jet and fields of the flat spectrum radio quasar 3C454.3 and propagating ALPs through the model both with and without the full dispersion calculation. We find that the full dispersion calculation can strongly affect the mixing, particularly at energies above 100 GeV—often reducing the ALP-photon conversion probability. This could have implications for future searches planned with, e.g., the Cherenkov Telescope Array, particularly those looking for a reduced opacity of the Universe at the highest energies.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Access Document
- Files:
-
-
(Preview, Version of record, 2.0MB, Terms of use)
-
- Publisher copy:
- 10.1103/PhysRevD.105.023017
Authors
+ Science and Technology Facilities Council
More from this funder
- Grant:
- ST/W508019/1
- ST/S002952/1
- ST/L006499/1
- ST/V006355/1
- ST/M00757X/1
- ST/S002618/1
- ST/V001477/1
- Publisher:
- American Physical Society
- Journal:
- Physical Review D More from this journal
- Volume:
- 105
- Issue:
- 2
- Article number:
- 023017
- Publication date:
- 2022-01-18
- Acceptance date:
- 2021-12-14
- DOI:
- EISSN:
-
2470-0029
- ISSN:
-
2470-0010
- Language:
-
English
- Keywords:
- Pubs id:
-
1240348
- Local pid:
-
pubs:1240348
- Deposit date:
-
2022-04-28
Terms of use
- Copyright holder:
- American Physical Society
- Copyright date:
- 2022
- Rights statement:
- Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
- Licence:
- CC Attribution (CC BY)
If you are the owner of this record, you can report an update to it here: Report update to this record