Zhang Kai1; Wu Jingwen1; Li Di1; Krco Marko1; Staveleysmith Lister2; Tang Ningyu1; Qian Lei1; Liu Mengting1; Jin Chengjin1; Yue Youling1; Zhu Yan1; Liu Hongfei1; Yu Dongjun1; Sun Jinghai1; Pan Gaofeng1; Li Hui1; Gan Hengqian1; Yao Rui1
Source Publicationsciencechinaphysicsmechanicsastronomy
AbstractThe Five-hundred-meter Aperture Spherical radio Telescope (FAST) is expected to complete its commissioning in 2019. FAST will soon begin the Commensal Radio Astronomy FasT Survey (CRAFTS), a novel and unprecedented commensal drift scan survey of the entire sky visible from FAST. The goal of CRAFTS is to cover more than 20000 deg2 and reach redshift up to about 0.35. We provide empirical measurements of the beam size and sensitivity of FAST across the 1.05 to 1.45 GHz frequency range of the FAST L-band array of 19-beams (FLAN). Using a simulated HI-galaxy catalogue based on the HI Mass Function (HIMF), we estimate the number of galaxies that CRAFTS may detect. At redshifts below 0.35, over 6 × 10~5 HI galaxies may be detected. Below the redshift of 0.07, the CRAFTS HIMF will be complete above a mass threshold of 109.5M⊙. FAST will be able to investigate the environmental and redshift dependence of the HIMF to an unprecedented depth, shedding light onto the missing baryon and missing satellite problems.
Document Type期刊论文
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhang Kai,Wu Jingwen,Li Di,et al. statusandperspectivesofthecraftsextragalactichisurvey[J]. sciencechinaphysicsmechanicsastronomy,2019,62(5).
APA Zhang Kai.,Wu Jingwen.,Li Di.,Krco Marko.,Staveleysmith Lister.,...&Yao Rui.(2019).statusandperspectivesofthecraftsextragalactichisurvey.sciencechinaphysicsmechanicsastronomy,62(5).
MLA Zhang Kai,et al."statusandperspectivesofthecraftsextragalactichisurvey".sciencechinaphysicsmechanicsastronomy 62.5(2019).
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