[AAA] Seminario: The Commensal Radio Astronomy FAST Survey (CRAFTS) and its Science Implications (Jueves 3 de Junio)

[Rene A. Mendez]

Estimado/as

Les recuerdo que el Jueves 03 de Junio a las 10:00 hrs, tendremos 
seminario en el Departamento de Astronomía de la Universidad de Chile.

** Note: This seminar will be delivered at 10:00 AM! **

*Speaker*: Di Li
Chief Scientist, Radio Division, National Astronomical Observatories of 
China. FAST Operations Center

*Title*: The Commensal Radio Astronomy FAST Survey (CRAFTS) and its 
Science Implications

*Abstract*: Inspired by the visionary efforts of building Arecibo, the 
Five-hundred-meter Aperture Spherical radio Telescope (FAST) was 
formally established as a stand-alone project in 2007. Through much 
trials and tribulation, FAST started normal operation in 2020 and has 
just finished its first internationally open call for proposal.  I 
report here a few science highlights so far, particularly from the 
Commensal Radio Astronomy FAST Survey (CRAFTS: Li et al. 2018 IEEE MW). 
Enabled by a novel calibration technique, CRAFTS simultaneously records 
pulsar, Galactic HI, extra-galactic HI, and transient data streams, the 
first such commensal survey worldwide. CRAFTS has discovered more than 
150 new pulsars, including at least one DNS system, 6 new FRBs including 
an active repeater that has been localized and with a colocated 
persistent radio source, discovered HI galaxies, started to produce 
high-quality HI images. Other dedicated programs have found first 
evidence for 3D alignment between pulsar spin and spatial velocity (Yao 
et al. 2021 Nature Astronomy), realized a new Zeeman tracer (Ching et 
al. under review for Nature), namely HI Narrow Self-Absorption (HINSA), 
constraining the cold gas content, particularly dark gas, through 
absorption (Tang et al. 2021 submitted), etc. Possibly the last giant 
single dish of its kind, FAST has the potential to further explore a 
unique parameter space of the cosmos and to keep producing significant 
discoveries in the coming decades.

Virtual room: 
https://uchile.zoom.us/j/89046359858?pwd=dURFTjIzbXU0NkNpdGFZb0sxRVZJdz09 
<https://uchile.zoom.us/j/89046359858?pwd=dURFTjIzbXU0NkNpdGFZb0sxRVZJdz09>

Rene A. Mendez
Seminar Coordinator
DAS/UChile - rmendez en uchile.cl <mailto:rmendez en uchile.cl>




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