Research output: Contribution to journal › Article › peer-review
Conversion of high-frequency relic gravitational waves into photons in cosmological magnetic field. / Понасенко, Л.А.; Четвериков, Артем Олегович.
In: European Physical Journal Plus, Vol. 139, No. 12, 1087, 12.2024.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Conversion of high-frequency relic gravitational waves into photons in cosmological magnetic field
AU - Понасенко, Л.А.
AU - Четвериков, Артем Олегович
N1 - The work was supported by RSF Grant 23-42-00066.
PY - 2024/12
Y1 - 2024/12
N2 - This work continues the research presented in the article (Dolgov et al. in Universe 10(1):7, 2024), where we estimate the Gertsenshtein effect’s influence on the long-wavelength part of relic gravitational wave spectrum. Here, the differential equation system for the Gertsenshtein effect in Friedman–Lemaitre–Robertson–Walker universe, derived in Dolgov et al. (Universe 10(1):7, 2024), is simplified for gravitational waves in the sub-horizon regime during radiation dominance epoch without taking into account the interaction with primary plasma. Then, the obtained system is solved analytically. As a result of the solution analysis, a conclusion was made about a significant increase of relic GWs with the frequencies k≳10-11 Hz for magnetic field strength B0∼1 nGs in the considered approximation. In addition, at the end of the article model dependence of the result is discussed.
AB - This work continues the research presented in the article (Dolgov et al. in Universe 10(1):7, 2024), where we estimate the Gertsenshtein effect’s influence on the long-wavelength part of relic gravitational wave spectrum. Here, the differential equation system for the Gertsenshtein effect in Friedman–Lemaitre–Robertson–Walker universe, derived in Dolgov et al. (Universe 10(1):7, 2024), is simplified for gravitational waves in the sub-horizon regime during radiation dominance epoch without taking into account the interaction with primary plasma. Then, the obtained system is solved analytically. As a result of the solution analysis, a conclusion was made about a significant increase of relic GWs with the frequencies k≳10-11 Hz for magnetic field strength B0∼1 nGs in the considered approximation. In addition, at the end of the article model dependence of the result is discussed.
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85212048395&origin=inward&txGid=20bf6f82978c790a3572a32cd33733a8
M3 - Article
VL - 139
JO - European Physical Journal Plus
JF - European Physical Journal Plus
SN - 2190-5444
IS - 12
M1 - 1087
ER -
ID: 61280333