Abstract
Equations to investigate fluctuations in cosmic x-ray background radiation due to pointlike sources at high-redshift are formulated in a systematic way. The angular power spectrum of x-ray background fluctuations is investigated from large scales to small scales in various cosmological models such as open universe models and models with the cosmological constant, assuming a simple evolution model of the sources. The effect of the epoch-dependent bias is demonstrated for small-angle fluctuations. The contribution from shot noise fluctuations is also discussed.
| Original language | English |
|---|---|
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 58 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - Jan 1 1998 |
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All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)
Cite this
Small-scale fluctuations in the cosmic x-ray background : A power spectrum approach. / Yamamoto, Kazuhiro.
In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 58, No. 10, 01.01.1998.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Small-scale fluctuations in the cosmic x-ray background
T2 - A power spectrum approach
AU - Yamamoto, Kazuhiro
PY - 1998/1/1
Y1 - 1998/1/1
N2 - Equations to investigate fluctuations in cosmic x-ray background radiation due to pointlike sources at high-redshift are formulated in a systematic way. The angular power spectrum of x-ray background fluctuations is investigated from large scales to small scales in various cosmological models such as open universe models and models with the cosmological constant, assuming a simple evolution model of the sources. The effect of the epoch-dependent bias is demonstrated for small-angle fluctuations. The contribution from shot noise fluctuations is also discussed.
AB - Equations to investigate fluctuations in cosmic x-ray background radiation due to pointlike sources at high-redshift are formulated in a systematic way. The angular power spectrum of x-ray background fluctuations is investigated from large scales to small scales in various cosmological models such as open universe models and models with the cosmological constant, assuming a simple evolution model of the sources. The effect of the epoch-dependent bias is demonstrated for small-angle fluctuations. The contribution from shot noise fluctuations is also discussed.
UR - http://www.scopus.com/inward/record.url?scp=1542735969&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=1542735969&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.58.103508
DO - 10.1103/PhysRevD.58.103508
M3 - Article
AN - SCOPUS:1542735969
VL - 58
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
SN - 1550-7998
IS - 10
ER -