@article{oai:kyutech.repo.nii.ac.jp:00007865,
 author = {Cheng,  Yun-Ting and Arai,  Toshiaki and Bangale,  Priyadarshini and Bock,  James J. and Chang,  Tzu-Ching and Cooray,  Asantha and Feder,  Richard M. and Korngut,  Phillip M. and Lee,  Dae Hee and Liu,  Lunjun and Matsumoto,  Toshio and Matsuura,  Shuji and Nguyen,  Chi H. and Sano, Kei and 佐野, 圭 and Tsumura,  Kohji and Zemcov,  Michael},
 issue = {2},
 journal = {Astrophysical Journal},
 month = {Sep},
 note = {We study the stellar halos of 0.2 ≲ z ≲ 0.5 galaxies with stellar masses spanning M* ∼ 1010.5 to 1012M⊙ (approximately L* galaxies at this redshift) using imaging data from the Cosmic Infrared Background Experiment (CIBER). A previous CIBER fluctuation analysis suggested that intra-halo light (IHL) contributes a significant portion of the near-infrared extragalactic background light (EBL), the integrated emission from all sources throughout cosmic history. In this work, we carry out a stacking analysis with a sample of ∼30,000 Sloan Digital Sky Survey (SDSS) photometric galaxies from CIBER images in two near-infrared bands (1.1 and 1.8 μm) to directly probe the IHL associated with these galaxies. We stack galaxies in five sub-samples split by brightness and detect an extended galaxy profile beyond the instrument point-spread function (PSF) derived by stacking stars. We jointly fit a model for the inherent galaxy light profile plus large-scale one- and two-halo clustering to measure the extended galaxy IHL. We detect nonlinear one-halo clustering in the 1.8 μm band at a level consistent with numerical simulations. By extrapolating the fraction of extended galaxy light we measure to all galaxy mass scales, we find ∼30%/15% of the total galaxy light budget from galaxies is at radius r > 10/20 kpc, respectively. These results are new at near-infrared wavelengths at the L* mass scale and suggest that the IHL emission and one-halo clustering could have appreciable contributions to the amplitude of large-scale EBL background fluctuations.},
 pages = {69-1--69-22},
 title = {Probing Intra-Halo Light with Galaxy Stacking in CIBER Images},
 volume = {919},
 year = {2021},
 yomi = {サノ, ケイ}
}