News tagged with massive galaxy

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A multi-wavelength view of radio galaxy Hercules A

(Phys.org)—Spectacular jets powered by the gravitational energy of a super massive black hole in the core of the elliptical galaxy Hercules A illustrate the combined imaging power of two of astronomy's cutting-edge tools, ...

dateNov 29, 2012 in Astronomy
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X-rays discovered from young supernova remnant

(Phys.org) -- Over fifty years ago, a supernova was discovered in M83, a spiral galaxy about 15 million light years from Earth. Astronomers have used NASA's Chandra X-ray Observatory to make the first detection of X-rays ...

dateJul 31, 2012 in Astronomy
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Massive galaxies formed when universe was young

(PhysOrg.com) -- Some of the universe's most massive galaxies may have formed billions of years earlier than current scientific models predict, according to surprising new research led by Tufts University. The findings appear ...

dateNov 24, 2010 in Astronomy
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Ultra-luminous X-ray sources in starburst galaxies

Ultra-luminous X-ray sources (ULXs) are point sources in the sky that are so bright in X-rays that each emits more radiation than a million suns emit at all wavelengths. ULXs are rare. Most galaxies (including our own Milky ...

dateDec 22, 2014 in Astronomy
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