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Zwicky classifies more than 10,000 exploding stars
- The Zwicky Transient Facility (ZTF) has classified over 10,000 supernovae out of the 100,000 it has detected since 2017.
- The ZTF is named after Swiss astronomer Fritz Zwicky and is a wide-field astronomical survey that observes in optical & infrared and detects transients.
- The ZTF Bright Transient Survey (BTS) is the largest spectroscopic supernovae survey conducted to classify supernovae into distance, type, rarity and brightness.
- The ZTF uses robotic telescopes that image the visible sky every two nights and detect transients by subtracting images of the same portion of sky from subsequent scans.
- The ZTF detects hundreds of thousands of events every night, from small asteroids to gamma-ray bursts, making it challenging for astronomers to keep up.
- The machine learning tools are being developed to classify transients and send them to the Transient Name Server, to avoid duplication in the findings.
- Scientific contributions made by Swiss astronomer Fritz Zwicky are crucial to supernova science and supernova classification system.
- Detecting nearly 16,000 supernovae since 2012, astronomers have discovered the closest and most distant supernovae and thousands of Type 1a supernovae.
- The Vera Rubin Observatory (VRO) is expected to detect millions of supernovae, and handling those detections will require a machine-learning tool similar to the BTSbot.
- Combining data from both ZTF and Vera Rubin observatories will directly address the physics of why supernovae explode.
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