Press Releases

The Giant Metrewave Radio Telescope Cold-HI GMRT-CATz1 Survey

A team of astronomers from the National Centre for Radio Astrophysics (NCRA-TIFR) in Pune has used the Giant Metrewave Radio Telescope (GMRT) to measure the relative amounts of hydrogen gas and stars in galaxies in the early Universe. Their results show that star-forming galaxies nine billion years ago were primarily made up of neutral hydrogen gas.

GMRT discovers more slowly spinning neutron stars near stellar graveyards

A team of scientists from NCRA with the GMRT High Resolution Southern Sky (GHRSS) survey has discovered two new slow pulsars from the same data which have been searched earlier for pulsars

जीएमआरटी ने शोधले तारकीय स्मशानभूमिजवळ हळूहळू फिरणारे न्यूट्रॉन तारे

जीएमआरटी हाय ररझोल्यशू न सदनन स्काय (जीएचआरएसएस) सर्वक्षे णाद्वारे एनसीआरएच्या शास्रज्ाांच्या चमनू े पर्वू ी शोधलेल्या पल्सार डटे ामधनू च दोन नर्वीन स्लो पल्सार शोधले आहेत.

जी एम आर टी ने रेडिओ आकाशगंगेतील 'वैश्विक-टँगो' ही अत्यंत दुर्मिळ घटना शोधली

भारतीय रेडिओ खगोलशात्रज्ञांच्या नेतृत्वाखालील आंतरराष्ट्रीय संघाने अत्यंत दुर्मिळ शोध लावला आहे. ज्यामध्ये दोन रेडिओ आकाशगंगांनी टँगो नृत्याचा अभिनय करून वैश्विक देखावाच निर्माण केला आहे. हा शोध नुकत्याच अप्ग्रेड केलेल्या जायांट मीटरवेव्ह रेडिओ टेलिस्कोप (uGMRT) द्वारे लावला गेला आहे.

GMRT spots extremely rare phenomenon of 'cosmic-tango' of radio galaxies

An international team led by Indian radio astronomers has discovered an extremely rare cosmic spectacle of two radio galaxies performing an act of tango dance. The discovery was recently made using the upgraded Giant Metrewave Radio Telescope (uGMRT), which is located near the Khodad village about 80 km north of Pune.

GMRT discovers the oldest known fossil radio galaxy trapped inside a cluster of galaxies

Recently, a team of Indian astronomers led by Dr Surajit Paul of Savitribai Phule Pune University (SPPU) has discovered an extremely aged remnant of the ‘lobes’ of a once active radio galaxy. This pair of gigantic lobes of a radio galaxy spanning 1.2 million light-years is located inside the galaxy cluster Abell 980 and it was created about 260 million years ago.

The upgraded GMRT opens a new frontier by enabling capabilities for international VLBI observations

The upgraded Giant Metrewave Radio Telescope (GMRT) achieved a new milestone in February this year. In two coordinated experiments conducted along with some telescopes of the European VLBI Network (EVN), Very Long Baseline Interferometry (VLBI) fringes with the GMRT were detected successfully. Five telescopes participated in this multi-country experiment on 14-Feb-2022: GMRT, Medicina and Noto (Italy), Westerbork (the Netherlands) and Zelenchukskaya (Russia).

The uGMRT confirms sharp reduction of atomic hydrogen in early universe

A team of astronomers from the National Centre for Radio Astrophysics (NCRA-TIFR) in Pune has used the upgraded Giant Metrewave Radio Telescope (GMRT) to find evidence for a sharp reduction in the amount of atomic hydrogen gas in galaxies over a 1-billion-year interval, from 9 billion years ago to 8 billion years ago. This detection of a rapid change in the atomic gas mass of galaxies in the early Universe helps to solve a long-standing open problem regarding the evolution of star-formation activity in the Universe. The research has been published in the June 1 issue of The Astrophysical Journal Letters.

GMRT reveals a fast radio burst progenitor born in a galaxy merger.

This is the first case of direct evidence for a recent merger in an FRB host, a major step towards understanding the progenitors of FRBs.

GMRT discovers several rare class of radio stars

A group of astronomers led by astronomers at NCRA, Pune, has discovered eight stars belonging to a rare class of stars called ‘MRPs’, or, Main-sequence Radio Pulse emitters, using the Giant Metrewave Radio Telescope (GMRT), located near Pune.

uGMRT unravels the eclipses of millisecond pulsars in compact binary

A group of scientists working at the National Centre for Radio Astrophysics (NCRA), Pune have for the first time unravelled the eclipse mechanisms for the millisecond pulsars in compact binary systems using the upgraded Giant Metrewave Radio Telescope (uGMRT).

The uGMRT confirms an unexpected event in millisecond pulsars - the cosmic clocks.

A group of nearly 40 astronomers, under the banner of Indian Pulsar Timing Array (InPTA), have provided first time a clear evidence of unexpected changes in a milli-second radio pulsar using the upgraded Giant Metrewave Radio Telescope (uGMRT). Millisecond pulsars are exotic objects in the sky and are used in efforts for detecting ultra-low frequency gravitational waves due to their extreme stable behaviour. These changes have attracted the attention of astronomers across the globe because the millisecond pulsars are not expected to show such behaviour and this star-clock may not be good enough to search for gravitational waves.

Discovery of a Remnant Radio Galaxy Using the GMRT

Dr. Dharam Vir Lal, a scientist working at the National Centre for Radio Astrophysics of the Tata Institute of Fundamental Research (NCRA-TIFR), Pune, India has discovered a remnant radio galaxy at the peripheral region of a cluster of galaxies named Abell2065, using the upgraded Giant Metrewave Radio Telescope (uGMRT) and the Chandra X-ray Observatory. The research has been published in the 16th July 2021 issue of the Astrophysical Journal.

uGMRT uncovers the signature of a cannon ball fired from the Sun, using pulsars!

A group of nearly 20 astronomers, under the banner of Indian Pulsar Timing Array (InPTA), have for the first time detected the effect of a Coronal Mass Ejection (CME) from the Sun in the signal from a millisecond pulsar using the upgraded Giant Metrewave Radio Telescope (uGMRT). This space weather effect on a pulsar from the Sun is the first of its kind ever reported. This was possible only due to unique wideband and low frequency capabilities of the uGMRT.

CHIME telescope detects more than 500 mysterious fast radio bursts in its first year of operation

Scientists with the Canadian Hydrogen Intensity Mapping Experiment (CHIME) Collaboration, including researchers at the Tata Institute for Fundamental Research (TIFR) and the National Centre for Radio Astrophysics (NCRA), have assembled the largest collection of fast radio bursts (FRBs) in the telescope’s first FRB catalog, which they will present this week at the American Astronomical Society Meeting.

GMRT measures the atomic hydrogen gas mass in galaxies 9 billion years ago

A team of astronomers from the National Centre for Radio Astrophysics (NCRA-TIFR) in Pune, and the Raman Research Institute (RRI), in Bangalore, has used the Giant Metrewave Radio Telescope (GMRT) to measure the atomic hydrogen gas content of galaxies 9 billion years ago, in the young universe. This is the earliest epoch in the universe for which there is a measurement of the atomic hydrogen content of galaxies. The new result is a crucial confirmation of the group’s earlier result, where they had measured the atomic hydrogen content of galaxies 8 billion years ago, and pushes our understanding of galaxies to even earlier in the universe. The new research has been published in the 2 June 2021 issue of The Astrophysical Journal Letters.

uGMRT reveals for the first time the patchy environment of a rare cosmic explosion

Scientists from the National Centre for radio Astrophysics of the Tata Institute of Fundamental Research (NCRA-TIFR) Pune used the upgraded Giant Metrewave Radio Telescope (uGMRT) to determine that AT 2018 cow, the first of a newly discovered class of cosmic explosions, has an extremely patchy environment. http://www.ncra.tifr.res.in/ncra/outreach/press-releases/press-note-english-at2018cow.pdf

India joins the global hunt for Gravitational Waves (GW) from monster black holes

A consortium of mainly Indian researchers under the banner “Indian Pulsar Timing Array (InPTA)”, became a full member of the “International Pulsar Timing Array (IPTA)” , an international effort to discover and study very low-frequency gravitational waves from supermassive binary black holes orbiting each other. InPTA regularly employs the upgraded Giant Metrewave Radio Telescope (uGMRT), situated near Pune to monitor pulsars to obtain high precision timing measurements. The unique frequency range of the uGMRT, 300 - 800 MHz is not covered by other big telescopes used by IPTA, therefore the inclusion of uGMRT is crucial in improving the precision of IPTA to detect nano-hertz GWs.

GMRT accorded prestigious IEEE Milestone status

The Giant Metrewave Radio Telescope (GMRT) has achieved yet another honour and major landmark : it has been selected as a IEEE Milestone facility. The Institute of Electrical and Electronics Engineers (IEEE) is the world's largest technical professional organization dedicated to advancing technology in all areas related to electrical and electronics engineering.

प्रतिष्ठित आयईईई माइलस्टोन म्हनूण जी एम आर टी स मान्यता

जायंट मीटरवेव्ह रेडिओ टेडिस्कोपने (जीएमआरटी) ने आणखी एक सन्मान आणी प्रमुख ऐतिहासिक कामगिरी केली आहे. आयईईई माइलस्टोन मान्यतेसाठी जीएमआरटी ची निवड करण्यात आली आहे.