The Event Horizon Telescope observes M87* and Sagittarius A*
node
Over a handful of nights in April 2017 the array observed both targets at 1.3 millimetres, requiring simultaneously usable weather at sites in Chile, Hawaii, Mexico, Arizona, Spain and Antarctica. Petabytes of data were recorded to hard drives and shipped physically to correlators in Massachusetts and Bonn. The South Pole recordings could not be flown out until the austral winter ended, so correlation of the full campaign did not begin until late in the year - one reason the results appeared two years after the observations.
A node is not a place. Drawing it on a map would assert something about the world that no stored fact supports.
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Timeline
No dated observations are stored for this object. Atlas shows what was observed and when — it does not infer a history.
Connections · 7
- The first image of a black hole shadow is publishedprecedes
- Event Horizon Telescopeconcerns
- Atacama Large Millimeter/submillimeter Arrayconcerns
- South Pole Telescopeconcerns
- Very long baseline interferometryconcerns
- M87* - the supermassive black hole in Messier 87concerns
- Sagittarius A* - the black hole at the centre of the Milky Wayconcerns
Assembled narrative · 1
An assembled narrative is available for this object.
Observed changes · 0
No public Signals are attached to this object. Signals show what changed and when it was observed — never a direction or a rank.
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