Bibliographic Details
| Title: |
Evidence for the Cross-correlation between Cosmic Microwave Background Polarization Lensing from POLARBEAR and Cosmic Shear from Subaru Hyper Suprime-Cam |
| Authors: |
Namikawa, Toshiya, Chinone, Yuji, Miyatake, Hironao, Oguri, Masamune, Takahashi, Ryuichi, Kusaka, Akito, Katayama, Nobuhiko, Adachi, Shunsuke, Aguilar, Mario, Aihara, Hiroaki, Ali, Aamir, Armstrong, Robert, Arnold, Kam, Baccigalupi, Carlo, Barron, Darcy, Beck, Dominic, Beckman, Shawn, Bianchini, Federico, Boettger, David, Borrill, Julian, Cheung, Kolen, Corbett, Lance, Crowley, Kevin T., Bouhargani, Hamza El, Elleflot, Tucker, Errard, Josquin, Fabbian, Giulio, Feng, Chang, Galitzki, Nicholas, Goeckner-Wald, Neil, Groh, John, Hamada, Takaho, Hasegawa, Masaya, Hazumi, Masashi, Hill, Charles, Howe, Logan, Jeong, Oliver, Kaneko, Daisuke, Keating, Brian, Lee, Adrian T., Leon, David, Linder, Eric, Lowry, Lindsay Ng, Mangu, Aashrita, Matsuda, Frederick, Minami, Yuto, Miyazaki, Satoshi, Murayama, Hitoshi, Navaroli, Martin, Nishino, Haruki, Nishizawa, Atsushi J., Pham, Anh Thi Phuong, Poletti, Davide, Puglisi, Giuseppe, Reichardt, Christian L., Sherwin, Blake D., Silva-Feaver, Maximiliano, Siritanasak, Praween, Speagle, Joshua S., Stompor, Radek, Suzuki, Aritoki, Tait, Philip J., Tajima, Osamu, Takada, Masahiro, Takakura, Satoru, Takatori, Sayuri, Tanabe, Daiki, Tanaka, Masayuki, Teply, Grant P., Tsai, Calvin, Verges, Clara, Westbrook, Ben, Zhou, Yuyang, Collaboration, The POLARBEAR, Collaboration, the Subaru HSC SSP |
| Publication Year: |
2019 |
| Collection: |
Astrophysics |
| Subject Terms: |
Astrophysics - Cosmology and Nongalactic Astrophysics |
| More Details: |
We present the first measurement of cross-correlation between the lensing potential, reconstructed from cosmic microwave background (CMB) {\it polarization} data, and the cosmic shear field from galaxy shapes. This measurement is made using data from the POLARBEAR CMB experiment and the Subaru Hyper Suprime-Cam (HSC) survey. By analyzing an 11~deg$^2$ overlapping region, we reject the null hypothesis at 3.5$\sigma$\ and constrain the amplitude of the {\bf cross-spectrum} to $\widehat{A}_{\rm lens}=1.70\pm 0.48$, where $\widehat{A}_{\rm lens}$ is the amplitude normalized with respect to the Planck~2018{} prediction, based on the flat $\Lambda$ cold dark matter cosmology. The first measurement of this {\bf cross-spectrum} without relying on CMB temperature measurements is possible due to the deep POLARBEAR map with a noise level of ${\sim}$6\,$\mu$K-arcmin, as well as the deep HSC data with a high galaxy number density of $n_g=23\,{\rm arcmin^{-2}}$. We present a detailed study of the systematics budget to show that residual systematics in our results are negligibly small, which demonstrates the future potential of this cross-correlation technique.
Comment: 16 pages, 5 figures, Accepted for publication in ApJ |
| Document Type: |
Working Paper |
| DOI: |
10.3847/1538-4357/ab3424 |
| Access URL: |
http://arxiv.org/abs/1904.02116 |
| Accession Number: |
edsarx.1904.02116 |
| Database: |
arXiv |
