What did the GALEX telescope discover?
What did the GALEX telescope discover?
Discovery Suggests New Way Galaxies Might Form NASA/JPL/DSS. NASA’s GALEX observatory spotted dwarf galaxies (in circles) growing inside the Leo Ring of interstellar gas, a region that is invisible to optical telescope but visible to GALEX’s ultraviolet-scanning instruments.
What was the purpose of GALEX?
Mission Overview The spacecraft’s mission is to observe hundreds of thousands of galaxies, with the goal of determining how far away each galaxy is from Earth and how fast stars are forming in each galaxy.
How much did GALEX cost?
150.6 million USD (2011)
GALEX/Cost
The $150 million GALEX satellite launched in April 2003 on a 29-month mission to study the history of star formation in the universe.
Is Galex still in orbit?
NASA Has Shut Down GALEX, A Space Telescope Orbiting Earth : The Two-Way Since its launch in 2003, GALEX photographed nebulae and spiral galaxies, and “used its ultraviolet vision to study hundreds of millions of galaxies across 10 billion years of cosmic time,” NASA says.
Where can I find the GALEX Arecibo SDSS survey?
VizieR Online Data Catalog: GALEX Arecibo SDSS survey. Final data release (Catinella+, 2013) VizieR On-line Data Catalog: J/MNRAS/436/34. Originally published in: 2013MNRAS.436…34C
What kind of surveys are done on GALEX?
In addition to All-Sky, Medium, and Deep Imaging Surveys (shallower to deeper observations), GALEX conducted a Nearby Galaxy Survey and supported a number of Guest Investigator programs, ultimately observing 77% of the sky at various depths in at least one band.
What was the field of view of the GALEX mast?
The FUV detector ceased operations in 2009, but the NUV detector lasted the entire duration of the mission. The telescope had a 1.25 degree field-of-view, and collected data as time-tagged photon events. The telescope only took science data while behind Earth’s shadow (referred to as an “eclipse”).
What kind of detector was used on GALEX mast?
GALEX used microchannel plate detectors to obtain direct images in the near-UV (NUV) and far-UV (FUV), and a grism to disperse light for low resolution spectroscopy. The FUV detector ceased operations in 2009, but the NUV detector lasted the entire duration of the mission.
