Semantic Scholar Open Access 2022 94 sitasi

Cosmic Birefringence from the Planck Data Release 4.

P. Diego-Palazuelos J. R. Eskilt Y. Minami M. Tristram R. Sullivan +10 lainnya

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Abstrak

We search for the signature of parity-violating physics in the cosmic microwave background, called cosmic birefringence, using the Planck data release 4. We initially find a birefringence angle of β=0.30°±0.11° (68% C.L.) for nearly full-sky data. The values of β decrease as we enlarge the Galactic mask, which can be interpreted as the effect of polarized foreground emission. Two independent ways to model this effect are used to mitigate the systematic impact on β for different sky fractions. We choose not to assign cosmological significance to the measured value of β until we improve our knowledge of the foreground polarization.

Topik & Kata Kunci

Medicine Physics

Penulis (15)

P. Diego-Palazuelos

J. R. Eskilt

Y. Minami

M. Tristram

R. Sullivan

A. Banday

R. B. Barreiro

H. Eriksen

K. Górski

R. Keskitalo

E. Komatsu

E. Mart'inez-Gonz'alez

D. Scott

P. Vielva

I. Wehus

Format Sitasi

APA MLA BibTeX

Diego-Palazuelos, P., Eskilt, J.R., Minami, Y., Tristram, M., Sullivan, R., Banday, A. et al. (2022). Cosmic Birefringence from the Planck Data Release 4.. https://doi.org/10.1103/PhysRevLett.128.091302

Akses Cepat

Lihat di Sumber doi.org/10.1103/PhysRevLett.128.091302

Informasi Jurnal

Tahun Terbit: 2022
Bahasa: en
Total Sitasi: 94×
Sumber Database: Semantic Scholar
DOI: 10.1103/PhysRevLett.128.091302
Akses: Open Access ✓