• Email Us: [email protected]
  • Contact Us: +1 718 874 1545
  • Skip to main content
  • Skip to primary sidebar

Medical Market Report

  • Home
  • All Reports
  • About Us
  • Contact Us

Suspected Runaway Supermassive Black Hole May Not Be What It Seems

May 10, 2023 by Deborah Bloomfield

The discovery of a long, thin stream of stars in old Hubble images created a buzz of excitement. The astronomers who found the unusual structure explain it as a supermassive black hole (SMBH) forced out of its galaxy through an encounter with two even larger black holes, and forming stars out of intergalactic gas in its wake. However, a different team now proposes that we might be seeing an unusual galaxy from an odd angle instead.

There’s no question that the object discovered by Pieter van Dokkum in the background of globular clusters he was studying is something very unusual. However, not all astronomers agree on the exact oddity we are observing. The original paper set out a scenario for a SMBH to be ejected from a galaxy merger at such speed stars would form behind it, even from the sparse gas between galaxies. However, for this to occur, a series of improbable or exceptional circumstances would need to be in place. In particular, the gas the black hole is passing through would need to be so close to forming stars that the passage of other large objects, such as a globular cluster, would have a similar effect. We haven’t seen this occurring elsewhere.

Advertisement

Having decided the original explanation is very unlikely, a team at the Instituto de Astrofica de Canarias, Spain sought an alternative. In a recent paper, they suggest we change our perspective and imagine we are seeing a galaxy edge-on, rather than stars angled toward us.

The galaxy would need to be a thin one, without a central bulge. While not as common as galaxies like our own, bulge-less galaxies exist in sufficient abundance that this part is not difficult to believe. Since galaxies are arranged randomly from our perspective, many happen to be edge-on to our line of sight. The galaxy would need to be unusually long for its mass and brightness, but not implausibly so, in the authors’ view.

To verify their case, Professor Jorge Almeida and co-authors looked at images of a galaxy, IC5249, that resembles their proposed scenario. IC5249 lacks a bulge and has a similar mass of stars to the newly discovered object and is seen from a similar angle. It’s also hundreds of times closer, so we can see it in much more detail.

Artist's impression of the original scenario

This is how an artist imagined the object based on the original explanation by the discoverer and colleagues

Image Credit: NASA, ESA, Leah Hustak (STScI)

“When we analyzed the velocities of this distant structure of stars we realized that they were very similar to those obtained from the rotation of galaxies, so we decided to compare a much closer galaxy, and found that they are extraordinarily similar,” said co-author Dr Mirela Montes in a statement. 

Advertisement

Although not as romantic as a fleeing black hole trailing stars, this scenario still makes the so-far unnamed object intriguing as it is unusually large for a galaxy we are seeing so far back in time.

Upcoming observations with the JWST and the Chandra X-Ray observatory should settle which explanation is right, but in the meantime Almeida is confident. “The motions, the size, and the quantity of stars fits what has been seen in galaxies within the local universe,” he said. “It’s a relief to have found the solution to this mystery, the new proposed scenario is much simpler. In one sense it is also a pity, because the existence of fleeing black holes is expected, and this could have been the first one to be observed.”

The work is published open access in the journal Astronomy and Astrophysics 

Deborah Bloomfield
Deborah Bloomfield

Related posts:

  1. Kroger expects smaller decline in same-store sales on grocery demand
  2. Libya presidency council head plans to hold October conference
  3. Tikehau Capital aims for around 5 billion euros of assets dedicated to tackling climate change
  4. Think Your Country Is Hot On Abortion Rights? Think Again

Source Link: Suspected Runaway Supermassive Black Hole May Not Be What It Seems

Filed Under: News

Primary Sidebar

  • Polar Vortex Patterns Explain Winter Cold Snaps Against Background Warming Trend
  • Scientists Tracked An Olm For 2,569 Days And It Did Not Move An Inch
  • Look Out For “Fireballs”: The Best Meteor Shower Of 2025 Is About To Commence, According To NASA
  • Why Do Many Large Language Models Give The Same Answer To This “Random” Number Query?
  • Adidas Jabulani: The World Cup Football So Bad NASA Decided To Study It
  • Beluga Whales Shake Their Blob-Like Melons To Say Hello And Even Woo A Mate, But How?
  • Gravitational Wave Detected From Largest Black Hole Merger Yet: “It Presents A Real Challenge To Our Understanding Of Black Hole Formation”
  • At Over 100 Years Of Age, The World’s Oldest Elephant Passes Away In India
  • Ancient Human DNA Reveals Earliest Zoonotic Diseases Appeared 6,500 Years Ago
  • Boys Are Better At Math? That Could Be Because School Favors Them Over Girls
  • Looptail G: Most People Can’t Recognize A Letter You Have Seen Millions Of Times
  • 24-Million-Year-Old Protein Fragments Are Oldest Ever Recovered, A Robot Listened To Spoken Instructions And Performed Surgery, And Much More This Week
  • DNA From Greenland Sled Dogs – Maybe The World’s Oldest Breed – Reveals 1,000 Years Of Arctic History
  • Why Doesn’t Moonrise Shift By The Same Amount Each Night?
  • Moa De-Extinction, Fashionable Chimps, And Robot Surgery – No Human Required
  • “Human”: Powerful New Images Mark The Most Scientifically Accurate “Hyper-Real 3D Models Of Human Species Ever”
  • Did We Accidentally Leave Life On The Moon In 2019 – And Could We Revive It?
  • 1.8 Million Years Ago, Two Extinct Humans Had One Of The Gnarliest Deaths In History
  • “Powerful Image” Of One Of The World’s Rarest Tigers Exposes The Real Danger In Taman Negara
  • Evolution, Domestication, And A Lot Of Very Good Boys: How Wolves Became Dogs
  • Business
  • Health
  • News
  • Science
  • Technology
  • +1 718 874 1545
  • +91 78878 22626
  • [email protected]
Office Address
Prudour Pvt. Ltd. 420 Lexington Avenue Suite 300 New York City, NY 10170.

Powered by Prudour Network

Copyrights © 2025 · Medical Market Report. All Rights Reserved.

Go to mobile version