Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Hubble Monitors Supernova In Nearby Galaxy M82

27.02.2014

This is a Hubble Space Telescope composite image of a supernova explosion designated SN 2014J in the galaxy M82.

Supernova 2014J in Galaxy M82

Image Credit: NASA, ESA, A. Goobar (Stockholm University), and the Hubble Heritage Team (STScI/AURA)

At a distance of approximately 11.5 million light-years from Earth it is the closest supernova of its type discovered in the past few decades. The explosion is categorized as a Type Ia supernova, which is theorized to be triggered in binary systems consisting of a white dwarf and another star — which could be a second white dwarf, a star like our sun, or a giant star.

Astronomers using a ground-based telescope discovered the explosion on January 21, 2014. This Hubble photograph was taken on January 31, as the supernova approached its peak brightness.

The Hubble data are expected to help astronomers refine distance measurements to Type Ia supernovae. In addition, the observations could yield insights into what kind of stars were involved in the explosion.

Hubble’s ultraviolet-light sensitivity will allow astronomers to probe the environment around the site of the supernova explosion and in the interstellar medium of the host galaxy.

Because of their consistent peak brightness, Type Ia supernovae are among the best tools to measure distances in the universe.

They were fundamental to the 1998 discovery of the mysterious acceleration of the expanding universe. A hypothesized repulsive force, called dark energy, is thought to cause the acceleration.

The January 31 image, shown here as an inset, was taken in visible light with Hubble’s Wide Field Camera 3. This image was superimposed into a photo mosaic of the entire galaxy taken in 2006 taken with Hubble’s Advanced Camera for Surveys.

Among the other major NASA space-based observatories used in the M82 viewing campaign are Spitzer Space Telescope, Chandra X-ray Observatory, Nuclear Spectroscopic Telescope Array (NuSTAR), Fermi Gamma-ray Space Telescope, Swift Gamma Ray Burst Explorer, and the Stratospheric Observatory for Infrared Astronomy (SOFIA).

Lynn Chandler | EurekAlert!
Further information:
http://www.nasa.gov
http://www.nasa.gov/content/goddard/hubble-monitors-supernova-in-nearby-galaxy-m82/index.html#.Uw4qooW2xNQ

Further reports about: Array Astronomy Explorer Galaxy Gamma Hubble Observatory Space Spectroscopic Supernova Telescope acceleration

More articles from Physics and Astronomy:

nachricht Odd Tilts Could Make More Worlds Habitable
16.04.2014 | NASA/Goddard Space Flight Center

nachricht Perfect nanospheres using ultrashort laser pulses
16.04.2014 | Laser Zentrum Hannover e.V.

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Anzeige

Anzeige

Event News

Siemens at the 2014 UIC ERTMS World Conference in Istanbul

01.04.2014 | Event News

AERA Meeting: German and US-American educational researchers in dialogue

28.03.2014 | Event News

WHS Regional Meeting: International experts address health challenges in Latin America

24.03.2014 | Event News

 
Latest News

East African honeybees are safe from invasive pests… for now

17.04.2014 | Agricultural and Forestry Science

Wireless power transfer achieved at 5-meter distance

17.04.2014 | Power and Electrical Engineering

Drought and fire in the Amazon lead to sharp increases in forest tree mortality

17.04.2014 | Ecology, The Environment and Conservation

VideoLinks
B2B-VideoLinks
More VideoLinks >>>