Public Data Release 1
May 8th, 2019
The first public data release of the Zwicky Transient Facility (#ZTF) is out! This release includes data products from the public portion of the survey spanning March to December 2018. Products include ~3.4 million single-exposure images, ~102,000 co-added images, accompanying source catalog files containing ~63 billion sources detected from those images, and ~2 billion light curves constructed from the single-exposure extractions.
Astronomers Find Clues to the Origins of Exploding Dead Stars
February 7th, 2019
Dying stars known as Type Ia supernovae are often referred to as standard candles because they all emit the same, well-known amount of light when they explode and can therefore be used to measure distances in the universe. GROWTH astronomers have now observed a very peculiar Type Ia supernova suggesting that while these dying stars shine equally brightly, they may not all die in the same way.
Zwicky Transient Facility Nabs Several Supernovae a Night
February 7th, 2019
The results are rolling in from Caltech's newest state-of-the-art sky-surveying camera, which began operations at the Palomar Observatory in March 2018. Called the Zwicky Transient Facility, or ZTF, the new instrument has so far discovered 50 small near-Earth asteroids and more than 1,100 supernovae, and it has observed more than 1 billion stars in the Milky Way galaxy.
Asteroid from ‘Rare Species’ Sighted in the Cosmic Wild
February 5th, 2019
Astronomers have discovered an asteroid looping through the inner solar system on an exotic orbit. The unusual object is among the first asteroids ever found whose orbit is confined almost entirely within the orbit of Venus. The asteroid's existence hints at potentially significant numbers of space rocks arcing unseen in uncharted regions nearer to the sun.