COMAP
(CO Mapping Array Project)
(high frequency radio telescope to map CO)
COMAP (for CO Mapping Array Project)
is an intensity-mapping survey
to detect high-redshift (high z)
carbon monoxide looking for the CO(1-0) emission line.
A pathfinder stage (COMAP pathfinder) looks for it over the z range
of 2.4-to-3.8 and the CO(2-1) line over the z range of 5.8-to-7.9.
Observations are in the 26-34 GHz range,
where these spectral lines fall given the redshift.
A challenge is separating this data from the foreground
EMR that falls within this frequency range.
The first phase is in operation: an imaging spectrometer on a
10-meter radio telescope with a 19-pixel receiver, located at
Owens Valley Radio Observatory (OVRO). A second phase of five such telescopes is planned.
The pathfinder is preparation for an effort to map CO during the epoch of reionization.
Current emphases is on the lower redshifts and developing techniques.
The acronym/name COMAP earlier stood for CO Mapping Array Pathfinder,
representing the pathfinder and the term Carbon Monoxide Mapping Array (COMA) was for a
full, ambitious effort. Apparently, the name "COMAP" is now used
for the entire effort.
(telescope,radio,ground,California,CO,intensity mapping)
Further reading:
http://comap.caltech.edu/
https://ui.adsabs.harvard.edu/abs/2022ApJ...933..182C/abstract
https://ui.adsabs.harvard.edu/abs/2022ApJ...933..183L/abstract
https://kipac.stanford.edu/research/projects/co-mapping-array-pathfinder-comap
https://ui.adsabs.harvard.edu/abs/2016AAS...22742606C/abstract
WaveL | Freq | Photon Energy | | |
8.9mm | 34GHz | 141μeV | begin | COMAP |
12mm | 26GHz | 108μeV | end | COMAP |
|
Redshift | Parsecs /Distance | Lightyears /Lookback Years | | |
2.4 | 3.60Gpc | 11.75Gly | nearest | COMAP |
7.9 | 4.18Gpc | 13.63Gly | furthest | COMAP |
|
Referenced by page:
Carbon Monoxide Mapping Array (COMA)
Index