Flare from giant black hole captured by NuSTAR

nustar-captures-flare-from-milky-ways-black-hole

NASA’s state-of-the-art telescope NuSTAR (Nuclear Spectroscopic Telescope Array) captured image of a giant black hole in center of the Milky way. NuSTAR, launched June 13, is the only telescope capable of producing focused images of the highest-energy X-rays. The typically mild-mannered black hole, Sagittarius A* was observed during the middle of a flare-up.

“We got lucky to have captured an outburst from the black hole during our observing campaign,” said Fiona Harrison, the mission’s principal investigator at the California Institute of Technology (Caltech) in Pasadena. “These data will help us better understand the gentle giant at the heart of our galaxy and why it sometimes flares up for a few hours and then returns to slumber.”

Pointing X-ray Eyes at our Resident Supermassive Black Hole

For two days in July, the telescope teamed up with other observatories to observe Sagittarius A* (pronounced Sagittarius A-star and abbreviated Sgr A*), the name astronomers give to a compact radio source at the center of the Milky Way. Observations show a massive black hole lies at this location. Participating telescopes included NASA’s Chandra X-ray Observatory, which sees lower-energy X-ray light; and the W.M. Keck Observatory atop Mauna Kea in Hawaii, which took infrared images.

Sgr A* is found relatively quiet in comparison to giant black holes at the centers of other galaxies. Active black holes tend to gobble up stars and other fuel around them. Sgr A* is thought only to nibble or not eat at all, a process that is not fully understood. When black holes consume fuel — whether a star, a gas cloud or, as recent Chandra observations have suggested, even an asteroid — they erupt with extra energy.

NuSTAR is picking up X-rays emitted by consumed matter being heated up to about 180 million degrees Fahrenheit (100 million degrees Celsius) and originating from regions where particles are boosted very close to the speed of light. Astronomers say these NuSTAR data, when combined with the simultaneous observations taken at other wavelengths, will help them better understand the physics of how black holes snack and grow in size. NuSTAR team member Chuck Hailey of Columbia University in New York City said,

“Astronomers have long speculated that the black hole’s snacking should produce copious hard X-rays, but NuSTAR is the first telescope with sufficient sensitivity to actually detect them.”

NuSTAR’s mission operations center is at UC Berkeley, with the Italian Space Agency providing an equatorial ground station located at Malindi, Kenya. The mission’s outreach program is based at Sonoma State University in Rohnert Park, Calif. Goddard manages NASA’s Explorer Program. Caltech manages JPL for NASA.

Source: NASA/JPL

Featured image: NASA/JPL-Caltech

NASA’s Nuclear Spectroscopic Telescope Array, or NuSTAR, has captured these first, focused views of the supermassive black hole at the heart of our galaxy in high-energy X-ray light. The background image, taken in infrared light, shows location of our Milky Way’s humongous black hole, called Sagittarius A*, or Sgr A* for short. NuSTAR is the first telescope able to focus high-energy X-rays, giving astronomers a new tool for probing extreme objects such as black holes. 

If you value what we do here, open your ad-free account and support our journalism.

Share:

Producing content you read on this website takes a lot of time, effort, and hard work. If you value what we do here, select the level of your support and register your account.

Your support makes this project fully self-sustainable and keeps us independent and focused on the content we love to create and share.

All our supporters can browse the website without ads, allowing much faster speeds and a clean interface. Your comments will be instantly approved and you’ll have a direct line of communication with us from within your account dashboard. You can suggest new features and apps and you’ll be able to use them before they go live.

You can choose the level of your support.

Stay kind, vigilant and ready!

$5 /month

  • Ad-free account
  • Instant comments
  • Direct communication
  • New features and apps suggestions
  • Early access to new apps and features

$50 /year

$10 /month

  • Ad-free account
  • Instant comments
  • Direct communication
  • New features and apps suggestions
  • Early access to new apps and features

$100 /year

$25 /month

  • Ad-free account
  • Instant comments
  • Direct communication
  • New features and apps suggestions
  • Early access to new apps and features

$200 /year

You can also support us by sending us a one-off payment using PayPal:

One Comment

Leave a reply

Your email address will not be published.