Canadian Hydrogen Intensity Mapping Experiment
(radio telescope mapping distant neutral hydrogen)
The Canadian Hydrogen Intensity Mapping Experiment (CHIME,
sometimes further abbreviated as CH)
is a radio telescope in British Columbia, Canada
to map the distribution of neutral hydrogen
in the redshift range of 0.8 to 2.5 (hydrogen intensity mapping).
It consists of four cylindrical reflectors in a static
configuration, i.e., a cylindrical telescope.
It views half the sky by sweeping out a
longitudinal arc over the course of the Earth's rotation.
It aims to observe the 21-cm line
redshifted to its frequency range of 400 MHz to 810 MHz.
It began science observations in 2018.
With its operation it has also become an important
tool for fast radio burst (FRB) observation.
The Canadian Hydrogen Observatory and Radio-transient Detector
(CHORD) is a plan for a substantial upgrade to CHIME to improve its
ability to observe radio transients. It would add a substantial
array of 512 6-meter dish telescopes at the current CHIME location as well
as cylindrical and dish telescopes at other locations to serve
as outriggers, to provide much better information regarding the
location of the transient radio sources within the celestial sphere.
It aims at a wider bandwidth than the existing CHIME (300-1500 MHz).
The Deep Dish Development Array (D3A) is a test array for
the dish telescopes.
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|370mm||810MHz||3.4μeV||begin||Canadian Hydrogen Intensity Mapping Experiment|
|750mm||400MHz||1.7μeV||end||Canadian Hydrogen Intensity Mapping Experiment|
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|.8||2.26Gpc||7.38Gly||nearest||Canadian Hydrogen Intensity Mapping Experiment|
|2.5||3.64Gpc||11.87Gly||furthest||Canadian Hydrogen Intensity Mapping Experiment|
Referenced by pages:
Dominion Radio Astrophysical Observatory (DRAO)
fast radio burst (FRB)