Image: Starbursting in the galaxy M82

Feb 03, 2014
Credit: Josh Marvil (NM Tech/NRAO), Bill Saxton (NRAO/AUI/NSF), NASA

(Phys.org) —Messier 82 (M82), the galaxy in which the nearest supernova in decades recently exploded, also is the closest galaxy that is undergoing a rapid burst of star formation, known as a starburst. About 12 million light-years away, it is seen nearly edge-on, as shown in the larger, visible-light image from the Hubble Space Telescope.

The inset is a new radio image, made with the Karl G. Jansky Very Large Array (VLA), that reveals fresh information about the central 5,200 light-years of the galaxy.

The radio emission seen here is produced by and by fast-moving electrons interacting with the interstellar magnetic field.

The bright dots are a mix of star-forming regions and , the debris from stellar explosions; analysis of the VLA data tells scientists which of these are which.

Scientists also are studying the faint, wispy features, many of which were previously unseen, to investigate their relationship with this galaxy's starburst-driven superwind.

Supernova 2014J is located outside the inset, to the right. VLA observations to date show that, like all other supernovae of its particular type, SN 2014J has not yet been found to be emitting radio waves.

Explore further: Stars found forming at Milky Way's outer edge

add to favorites email to friend print save as pdf

Related Stories

NASA spacecraft take aim at nearby supernova

Jan 24, 2014

(Phys.org) —An exceptionally close stellar explosion discovered on Jan. 21 has become the focus of observatories around and above the globe, including several NASA spacecraft. The blast, designated SN 2014J, ...

A galaxy with two hearts

Jan 09, 2014

This new Hubble image shows the spiral galaxy Messier 83, otherwise known as the Southern Pinwheel Galaxy. One of the largest and closest barred spirals to us, this galaxy is dramatic and mysterious; it has ...

Image: Hubble looks at Messier 65 and its history

Jan 27, 2014

(Phys.org) —The first day of March 1780 was a particularly productive night for Charles Messier. Combing the constellation of Leo for additions to his grand astronomical catalog, he struck on not one, but ...

Hubble catches stellar explosions in NGC 6984

Nov 08, 2013

Supernovae are intensely bright objects. They are formed when a star reaches the end of its life with a dramatic explosion, expelling most of its material out into space.

Surprising image provides new tool for studying galaxy

Nov 14, 2013

Astronomers studying gas halos around nearby galaxies were surprised when detailed studies with the National Science Foundation's Karl G. Jansky Very Large Array (VLA) showed that one of their subjects is ...

A multi-wavelength view of radio galaxy Hercules A

Nov 29, 2012

(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 ...

Recommended for you

Stars found forming at Milky Way's outer edge

6 hours ago

Brazilian astronomers said Friday they had found two star clusters forming in a remote part of our Milky Way galaxy where such a thing was previously thought impossible.

New insight found in black hole collisions

21 hours ago

New research by an astrophysicist at The University of Texas at Dallas provides revelations about the most energetic event in the universe—the merging of two spinning, orbiting black holes into a much larger ...

Looking deeply into the universe in 3-D

22 hours ago

The MUSE instrument on ESO's Very Large Telescope has given astronomers the best ever three-dimensional view of the deep Universe. After staring at the Hubble Deep Field South region for only 27 hours, the ...

Astrophysicist explores star formation in Orion's belt

23 hours ago

U.S. Naval Research Laboratory (NRL) astrophysicist Dr. T.L. Wilson is part of a multi-national research team that has discovered an outburst in the infrared from a deeply embedded protostar. The Herschel ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.