Sentences with phrase «center of active galaxies»

She has demonstrated that accretion disks in the center of active galaxies lie at random angles relative to their host galaxies.

Supermassive J0100 +2802 sits at the center of an active galaxy, called a quasar, 12.8 billion light - years away.

Not exact matches

That grim scenario has become more likely based on a new survey of galaxies hosting active black holes at their centers.

Astronomer Fabrizio Nicastro of the Harvard - Smithsonian Center for Astrophysics in Cambridge, Massachusetts, and his colleagues monitored the galaxy Markarian 421, which contains a «blazar» — an active black hole that aims powerful jets of energy toward Earth.

In 2007 astronomers working at Auger traced some of the ultrahigh - energy cosmic rays to nearby active galactic nuclei, the turbulent centers of violent galaxies.

The current model of active galaxies such as M87 posits that each one harbors at its center a black hole many millions or even billions of times more massive than our own sun, all packed into a space about the size of our solar system.

He and his colleagues focused on the K - alpha emission line of iron, visible in the spectra of many active galactic nuclei (AGN)-- the brilliant centers of these galaxies.

To measure the mass and growth rate of these galaxies» active nuclei — the supermassive black holes at the galaxies» centers — the researchers used data from 12 different ground - based telescopes spread across the globe to complement the data from the Swift satellite.

Meanwhile, astronomers Tod Strohmayer and Richard Mushotzky of NASA's Goddard Space Flight Center in Greenbelt, Maryland, studied a brighter source in the active galaxy M82.

Known as Seyfert galaxies, these are another type of active galaxy with relatively low mass black holes residing at their centers.

The light from these active galaxies is produced by a strange process in the centers of the galaxies.

In active galaxies, a region near the center produces enormous amounts of emission across the entire electromagnetic spectrum.

From this perspective, astronomers have been actively working on the starburst regions of galaxies (* 1) and the active galactic nuclei (AGN) at the center of galaxies, which are called circumnuclear disks (CND)(* 2).

Blazars are active galactic nuclei — energetic regions surrounding massive black holes at the centers of galaxies.

A huge, windy swirl of gas — usually found in the largest, most active galaxies — commands the center of a spiral similar to the Milky Way and may disrupt the galaxy's star formation, new research shows.

Most galaxies in the observable universe contain a supermassive black hole at their center, one that is either active and surrounded by an accretion disk of dust, gas and other debris, or is dormant — lurking at the center, patiently awaiting its next meal.

Another idea floating around is that FRBs are emitted by active galactic nuclei, or AGNs — superluminous regions at the centers of some galaxies.

An international research team led by Takuma Izumi, a second - year master's student of science at the University of Tokyo, and Kotaro Kohno, a professor at the University of Tokyo, successfully captured a detailed image of high - density molecular gas around an active supermassive black hole at the center of a galaxy called NGC 1097 at the highest sensitivity ever achieved.

When supermassive black holes at the center of galaxies accrete matter (usually gas), they give rise to a highly energetic phenomena named Active Galactic Nuclei (AGN).

The team focused on seven jellyfish galaxies, and amazingly, six out of the seven jellyfish galaxies were found to host an active supermassive black hole at the center, feeding on the surrounding gas.

The mechanism at work in the centers of quasars and active galaxies, however, remains a mystery.

The halos around quasars — the brightest and the most active objects in the universe, they are galaxies formed less than 2 billion years after the Big Bang; they have supermassive black holes in their centers and consume stars, gas, interstellar dust and other material at a very fast rate — are made of gas known as the intergalactic medium and extend for up to 300,000 light - years from the centers of the quasars.