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Located or originating beyond the Milky Way.


(Astronomy) occurring or existing beyond the Galaxy


(ˌɛk strə gəˈlæk tɪk)

outside the Milky Way system.
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Adj.1.extragalactic - outside or beyond a galaxy; "extragalactic nebula"
References in periodicals archive ?
The list of award winners of the night includes leading educationist Humaira Bachal who runs Dream Model Street School for underprivileged children; Pakistans first female taxi driver, Zahida Kazmi; Pakistans first female fire fighter Shazia Parveen; Director of Justice Project Pakistan, Sarah Bilal; young national level Squash player Sadia Gul; and the first Pakistani woman to earn a PhD in Extragalactic Astrophysics, Dr Mariam Sultana.
Lead author George Lansbury, a postgraduate student in the Centre for Extragalactic Astronomy, at Durham University, said: "For a long time we have known about supermassive black holes that are not obscured by dust and gas, but we suspected that many more were hidden from our view.
It is generally believed that ultra-high-energy cosmic rays are produced in extragalactic sources like gamma- ray bursts or active galactic nuclei, while the lower energy cosmic rays come from our own Galaxy.
When it does, it could deliver extragalactic material, said Jay Lockman of the National Radio Astronomy Observatory.
At the same time, they will be greeted with visuals of the solar system and interstellar and extragalactic space provided by the Eugene Astronomical Society.
Second, I discuss my work on black hole binaries (BHBs) in extragalactic globular clusters (GCs).
To confirm her gravitational-lens hypothesis, Tran's team analyzed Hubble archival data from two observing programs, the 3D-HST survey, a near-infrared spectroscopic survey taken with the Wide Field Camera 3, and the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey, a large Hubble deep-sky program.
The International Celestial Reference System is defined by the measured positions of more than two hundred extragalactic objects (mainly quasars).
South Pole Telescope The gravitational waves were detected by a radio telescope called BICEP2 (Background Imaging of Cosmic Extragalactic Polarization).
The signal detected by the BICEP2 (Background Imaging of Cosmic Extragalactic Polarazation) telescope is much stronger than expected.
Together with expanding its research in the fields of astrophysics and particle physics, ICRR plans to move forward on new experimental projects, such as the KAGRA project, which aims to detect the gravitational wave for the first time in history, and the ground-based gamma ray observatory, CTA(7), which is designed to help understand galactic and extragalactic very-high energy gamma-ray sources.
Some of them are certainly extragalactic,'' he said.