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Latest Type Ia supernova Stories

A Wide Range Of Masses Observed In Type Ia Supernovae
2014-03-04 13:06:14

Lee Rannals for redOrbit.com - Your Universe Online Astronomers, publishing a paper in the Monthly Notices of the Royal Astronomical Society, show how Type Ia supernovae have a range of masses. Scientists have been confident in knowing why Type Ia supernovae are all so much alike. Most of them assumed that carbon-oxygen white dwarf stars capture additional mass by stripping it from a companion star or by merging with another white dwarf. Scientists assumed this class of supernova were...

supernova SN 2014J
2014-02-27 04:07:54

redOrbit Staff & Wire Reports - Your Universe Online NASA’s Spitzer Space Telescope has used its dust-piercing infrared vision to help in analyzing a recently-discovered supernova in galaxy M82. It joined with several other instruments to create a detailed portrait of the stellar explosion, officials from the US space agency announced on Wednesday. The new supernova, SN 2014J, is the closest of its kind to be observed in the past few decades and has launched a global observing...

2014-01-30 20:20:09

OAKLAND, Calif., Jan. 30, 2014 /PRNewswire-USNewswire/ -- Chabot Astronomers are tracking the latest supernova about 12 million light years away. Identified as "2014J," a Type 1A supernova, the phenomenon is occurring in Messier-82 (M82), also known as the Cigar Galaxy. Supernovae occur when a star explodes emitting a massive amount of energy in a short span of time; the star literally collapses under its own gravity. 2014J actually exploded about 12 million...

supernova
2014-01-26 05:13:55

[ Watch the Video: What Interstellar Blast Is Lighting Up The Sky? ] redOrbit Staff & Wire Reports - Your Universe Online Several NASA spacecraft and Earth-based observatories, including the Hubble Space Telescope and the Chandra X-ray Observatory, are studying an incredibly close supernova that took place on January 21, officials from the US space agency announced on Friday. The stellar explosion, which has been designated SN 2014J, lies approximately 12 million light-years away...

Our Understanding of the Universe MAXI-mized By The International Space Station
2014-01-16 08:31:10

NASA Look up at the night sky … do you see it? The stars of the cosmos bursting in magnificent explosions of death and rebirth! No? Well, then maybe you are not looking through the “eyes” of the Monitor of All-sky X-ray Image (MAXI) investigation, mounted on the exterior of the International Space Station Kibo module. MAXI, along with other sky watching instruments, such as Swift, collect data that help researchers discover, study and understand the physics behind the powerful...

Rare Binary White Dwarf Systems
2013-12-20 08:30:50

John P. Millis, PhD for redOrbit.com - Your Universe Online Nearly a half-century ago, astronomers discovered a strange star in the Canes Venatici constellation. It was later determined that the unusual properties of the object arose because it was not an isolated star at all, but rather a very tight binary system. With an orbital period of 18 minutes – for comparison the orbit of Mercury around the Sun takes about 88 Earth days – the individual members of the system are incredibly...

Nova Visible With Naked Eye
2013-08-20 10:36:11

John P. Millis, PhD for redOrbit.com - Your Universe Online White dwarfs – small balls of carbon and oxygen, the core remnants of Sun-like stars that reached the ends of their lives – give off a soft glow of light, slowly fading as the heat from their surfaces escapes into the coldness of space. These dead cores will eventually dim and cool, as nuclear fusion has long ceased. However, there are some that live on. These white dwarfs orbit in close binary systems with another star. If...

Chandra Discovers Supernova Remnant Emission Is Synchrotron Radiation
2013-06-26 16:32:40

Lee Rannals for redOrbit.com – Your Universe Online Astronomers will be reporting details about a supernova remnant known as G1.9+0.3 in the upcoming issue of The Astrophysical Journal Letters. In 2008, a team of scientists discovered the remains of a supernova known to have occurred in the Milky Way, about 28,000 light years away from Earth. The explosion would have been visible from Earth a little more than a hundred years ago, assuming it was not obscured by dust and gas....

Supernova Gold Standard For Normal
2013-06-19 13:37:32

Lee Rannals for redOrbit.com - Your Universe Online A group of astronomers has released a dataset based on 32 nights of repeated observations of supernova 2011fe, creating a "gold-standard" atlas for Type 1a supernovae. Astronomers were able to catch supernova 2011fe just 12 hours after it exploded in the Pinwheel Galaxy in the Big Dipper. The supernova is easy to spot with binoculars, and has been nicknamed the Backyard Supernova. Researchers from the international Nearby Supernova...

Supernova Light Echo Detected
2013-06-05 13:28:46

Lee Rannals for redOrbit.com - Your Universe Online Astronomers discovered light echoing off of material surrounding a recent supernova explosion, supporting the theory that exploding white dwarfs become unstable from matter donated by large non-degenerate stars. The team detected the light echo coming off of SN 2009ig, making it the sixth and most luminous discovered from a type Ia supernova. A light echo works similarly in principle to the more familiar sound echoes heard on Earth....


Latest Type Ia supernova Reference Libraries

6_79c799b9f03f60809a9d0aecf38491202
2004-10-19 04:45:42

Supernova -- A supernova is a star that increases its brightness drastically within a matter of days, making it appear as if a "new" star was born (hence "nova"). The "super" prefix distinguishes it from a mere nova, which also involves a star increasing in brightness, though to a lesser extent and through a much different mechanism. Astronomers have classified supernovae in several classes, according to the lines of different elements that appear in their spectra. The first...

6_19859ff34fd03d00777232e2520ce83f4
2004-10-19 04:45:42

Nova -- A nova is an enormous nuclear explosion caused by the accretion of hydrogen onto the surface of a white dwarf star. When a white dwarf has a close companion star, the companion will often begin to have its outer atmosphere drawn away from it by the white dwarf's gravity as the companion star ages and expands into a red giant. The gases so captured consist primarily of hydrogen and helium, the two principle constituents of matter in the universe. The gases are compacted on the...

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