Are all merging compact objects that produce gravitational waves black holes, or are some of them highly convincing imposters?
A new study published on August 14, 2026 in the prestigious journal Physical Review Letters has brought scientists one step closer to answering this fundamental question. Co-led by Dr. Aditya Vijaykumar, a Postdoctoral Fellow at the Canadian Institute for…
From April 20–22, CITA will be hosting “GWTC-6: The Bleeding Edge of Gravitational-Wave Populations.” At this interactive workshop, LIGO-Virgo-KAGRA members will gather to analyze forthcoming catalogs of gravitational-wave (GW) data.
Special Open Session for CITA & UofT Researchers:While the main workshop is for LIGO-Virgo-KAGRA members, we warmly invite all researchers at CITA and…
CITA researchers Maya Fishbach, Amanda Farah and Aditya Vijaykumar are part of an international team that has uncovered evidence of a rare form of exploding star, shedding light on one of the most cataclysmic events in the Universe. Their study, published in Nature today, confirms that black holes with masses larger than 45 times the mass of the sun are the result of previous black hole mergers,…
In a new paper published Oct. 28 in The Astrophysical Journal Letters, the international LIGO-Virgo-KAGRA (LVK) Collaboration reports on the detection of two gravitational wave events in October and November of last year with highly suggestive black hole spins and mass ratios.
Gravitational waves are “ripples” in space-time that result from cataclysmic events in deep space, with t…
Today the LIGO-Virgo-KAGRA (LVK) Collaboration begins a new observing run with upgraded instruments, new and even more accurate signal models, and more advanced data analysis methods.
This observing run, known as O4, promises to take gravitational-wave astronomy to the next level. O4 will begin on May 24th and last 20 months, including up to two months of commissioning breaks. It will be t…
Faculty and Postdocs join to form CITA’s membership to this esteemed collaboration
Collaboration and discovery go hand in hand at the LIGO Scientific Collaboration (LSC). Working with the Virgo and KAGRA observatories – together forming the LIGO-Virgo-KAGRA (LVK) Collaboration –, the group represents 4 observatories, 19 countries, 127 institutions, and over 1400 researchers. This scale is…
Jammu, India –
The Indian Prime Minister Manmohan Singh announced Monday that India intends to host the third LIGO detector. The Prime Minister made the announcement as he inaugurated the 101st Indian Science Congress at the University of Jammu on February 3rd, 2014.
“India will partner the international scientific community in the establishment of some of the world’s major R&D…