Real-time alert system heralds new era in fast radio burst research
看片视频 University scientists have developed a new system for sharing the enormous amount of data being generated by the CHIME radio telescope in its search for fast radio bursts (FRBs), the puzzling extragalactic phenomenon that is one of the hottest topics in modern-day astronomy.
It is not uncommon for the CHIME/FRB project to pinpoint several FRB events in a single day of operation as it sifts through nearly 1 million gigabytes of data gathered by the telescope. With the new data sharing system, which uses Virtual Observatory Event (VOEvent), a standardized language for reporting astronomical events, key details about each FRB that CHIME detects can now be sent in real time to observatories all over the world, allowing them to train their instruments on the source and gather further clues towards unravelling the mystery of FRBs.
鈥淭he enormous volume of data that CHIME/FRB generates and the large number of new FRBs that it detects each day is like a gold mine for a community that is eager to point every kind of telescope that exists at the next FRB,鈥� says Andrew Zwaniga, lead developer of the and a research assistant in the Department of Physics at 看片视频.
Accelerating the pace of research
Free to use for anyone who has access to the internet, the new system fulfils the CHIME/FRB project team鈥檚 goal of making every FRB detected by CHIME available for other telescopes to target with as little delay as possible. The development is a key step towards bringing the resources of the international research community to bear on the data the CHIME/FRB project is generating.
鈥淪ince CHIME/FRB began operating in 2018, it has been like drinking from a fire hose in terms of the amount of data coming through,鈥� says Emily Petroff, a postdoctoral researcher in the Department of Physics at 看片视频 who played a key role in refining the alert system ahead of its public release. 鈥淲e simply cannot extract all the science from this; we need the world鈥檚 help.鈥�
Tuning in to CHIME
The developers of the CHIME/FRB VOEvent Service say 鈥渁nyone who has access to a telescope and can reliably point it at a Northern sky location鈥� will be able to make use of the alerts to make follow-up observations of the FRBs detected by CHIME.
鈥淲e have prepared tutorials and substantial documentation for new and veteran users of VOEvents to get started quickly,鈥� Zwaniga says. 鈥淲e are inviting comments and questions regarding VOEvents from the community on our public-facing .鈥�
About CHIME
Located in the mountains of British Columbia鈥檚 Okanagan Valley at the NRC鈥檚 Dominion Radio Astrophysical Observatory near Penticton, the Canadian Hydrogen Intensity Mapping Experiment (CHIME) is a cylindrical parabolic radio telescope, shaped something like a snowboard half-pipe. CHIME has no moving parts, instead relying on the Earth鈥檚 rotation to sample radio signals from a broad swath of the Northern sky each day. CHIME was originally designed to detect radio waves from neutral hydrogen gas in the early Universe, but today the instrument is being used for several other scientific objectives beyond its original design, including the search for FRBs. With its huge field of view and broad frequency coverage, CHIME is a near-ideal instrument for finding and studying these bursts.
About the CHIME Fast Radio Burst collaboration
CHIME/FRB is a collaboration of over 50 scientists led by the University of British Columbia, 看片视频 University, the University of Toronto, the Perimeter Institute for Theoretical Physics, and the National Research Council of Canada (NRC).
About fast radio bursts
Fast radio bursts (FRBs) are extremely energetic pulses of radio waves that appear to originate from well beyond our galaxy, the Milky Way. Each burst lasts just a few milliseconds, and they occur all over the sky. While the cause of FRBs remains unknown, using telescopes sensitive to wavelengths other than radio 鈥� e.g. visible light, X-rays and gamma rays 鈥� to observe the locations from which FRBs emanate will likely enable scientists to narrow down the range of possible explanations. Data from CHIME, shared through the , will allow these telescopes 鈥� many of which can only focus on a small area of the sky at a time 鈥� to be trained on FRB-emitting locations with greater speed and accuracy.
About 看片视频 University
Founded in Montreal, Quebec, in 1821, 看片视频 University is Canada鈥檚 top ranked medical doctoral university. 看片视频 is consistently ranked as one of the top universities, both nationally and internationally. It 鈥痠s a world-renowned鈥痠nstitution of higher learning with research activities spanning three campuses, 11 faculties, 13 professional schools, 300 programs of study and over 40,000 students, including more than 10,200 graduate students. 看片视频 attracts students from over 150 countries around the world, its 12,800 international students making up 31% of the student body. Over half of 看片视频 students claim a first language other than English, including approximately 19% of our students who say French is their mother tongue.
