News tagged with infrared emission

Blazars

(PhysOrg.com) -- A blazar is a galaxy which, like a quasar, has an intensely bright central nucleus containing a supermassive black hole. In a blazar, however, the emitted light sometimes includes extremely ...

dateSep 06, 2011 in Astronomy
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A cosmic exclamation point

(PhysOrg.com) -- VV 340, also known as Arp 302, provides a textbook example of colliding galaxies seen in the early stages of their interaction. The edge-on galaxy near the top of the image is VV 340 North ...

dateAug 12, 2011 in Astronomy
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First 'bone' of the Milky Way identified

(Phys.org)—Our Milky Way is a spiral galaxy—a pinwheel-shaped collection of stars, gas and dust. It has a central bar and two major spiral arms that wrap around its disk. Since we view the Milky Way from ...

dateJan 08, 2013 in Astronomy
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Effects of accretion disks around newborn stars

Stars are born in dense, cool clouds of molecular gas and dust. When the local density is high enough, the matter can gravitationally collapse to form a new star, a so-called young stellar object (YSO). In ...

dateDec 08, 2014 in Astronomy
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Shocks in the Cygnus Loop supernovae remnant

(Phys.org) —Supernova remnants (SNRs) play a vital role in the lifecycle of dust in the interstellar medium. As shockwaves from supernovae sweep up interstellar material, they heat the gas and dust, and ...

dateJun 27, 2014 in Astronomy
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NASA Satellite Eyes Iceland Volcano Cauldron

(PhysOrg.com) -- On Saturday, April 17, 2010, the Hyperion instrument onboard NASA's Earth Observing-1 (EO-1) spacecraft obtained this pair of images of the continuing eruption of Iceland's Eyjafjallajökull ...

dateApr 19, 2010 in Earth Sciences
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