Perseus A

Perseus A

See Perseus cluster.

Perseus A

[′pər·sē·əs ′ā]
(astronomy)
A strong radio source, having a redshift z = 0.018 and centered on the Seyfert galaxy NGC 1275, that undergoes extremely violent outbursts.
References in periodicals archive ?
If you're distributing ultra-low-bitrate video to mobile devices, the quality and playback tests reported earlier, plus the fastfilmz design-in, make PERSEUS a natural.
With H.264 as high as 8Mbps and PERSEUS as low as 2.5Mbps, I saw very little difference in quality, even when I stopped playback and compared single frames.
Perseus A, the initial version (now in an advanced stage of development) is designed to fly to 15.5 miles and above, according to Langford, president of Aurora Flight Sciences.
A prototype Perseus A reached nowhere near those extreme altitudes in its first flights in mid-November 1991 over the El Mirage dry lake bed near Edwards Air Force Base in California's Mojave Desert, because it was limited to a 3000-foot ceiling for safety reasons.
And at a meeting of the American Astronomical Society in Seattle this week, Djorgovski announced that other radio galaxies studied by his team show similar evidence of a hidden quasar -- M87, Perseus A, 3C236 and 3C264.
In his meditation on lightness, Calvino takes Perseus as his hero.
The plan presented a multifaceted approach to evaluation as a research process that included multiple metrics and methodologies and aimed to understand Perseus as a new electronic phenomenon with impact in multiple contexts.