Hubble Shows Light Echo Expanding from Exploded Star

Find out the latest thinking about our universe.
User avatar
bystander
Apathetic Retiree
Posts: 16325
Joined: Mon Aug 28, 2006 2:06 pm
Location: Oklahoma

Hubble Shows Light Echo Expanding from Exploded Star

Postby bystander » Fri Nov 10, 2017 4:52 am

Hubble Shows Light Echo Expanding from Exploded Star
NASA | GSFC | Hubble | 2017 Oct 09

stsci-h-p1742a-m.jpg

Light from a supernova explosion in the nearby starburst galaxy M82 is reverberating off a huge dust cloud in interstellar space.

The supernova, called SN 2014J, occurred at the upper right of M82, and is marked by an “X.” The supernova was discovered on Jan. 21, 2014.

The inset images at top reveal an expanding shell of light from the stellar explosion sweeping through interstellar space, called a “light echo.” The images were taken 10 months to nearly two years after the violent event (Nov. 6, 2014 to Oct. 12, 2016). The light is bouncing off a giant dust cloud that extends 300 to 1,600 light-years from the supernova and is being reflected toward Earth.

SN 2014J is classified as a Type Ia supernova and is the closest such blast in at least four decades. A Type Ia supernova occurs in a binary star system consisting of a burned-out white dwarf and a companion star. The white dwarf explodes after the companion dumps too much material onto it. ...

Hubble Movie Shows Movement of Light Echo Around Exploded Star
NASA | STScI | HubbleSite | 2017 Nov 09

Interstellar-Medium Mapping in M82 Through Light Echoes Around Supernova 2014J - Yi Yang et al
You do not have the required permissions to view the files attached to this post.
Know the quiet place within your heart and touch the rainbow of possibility; be
alive to the gentle breeze of communication, and please stop being such a jerk.
— Garrison Keillor

User avatar
geckzilla
Ocular Digitator
Posts: 8652
Joined: Wed Sep 12, 2007 12:42 pm
Location: Modesto, CA

Re: Hubble Shows Light Echo Expanding from Exploded Star

Postby geckzilla » Fri Nov 10, 2017 7:26 am

I never expected to see a light echo from another galaxy. Really, I thought they would all be smaller than a couple of pixels in size by the time they faded into the noise.
Just call me "geck" because "zilla" is like a last name.


Return to “The Communications Center: Breaking Science News”

Who is online

Users browsing this forum: Bing [Bot], CommonCrawl [Bot] and 0 guests