365NEWSX
365NEWSX
Subscribe

Welcome

‘Galactic underworld’ of black holes discovered in Milky Way - Livescience.com

‘Galactic underworld’ of black holes discovered in Milky Way - Livescience.com

‘Galactic underworld’ of black holes discovered in Milky Way - Livescience.com
Oct 04, 2022 1 min, 41 secs

Where are all the galaxy's dead stars hiding?

Using a computer simulation, the team modeled the initial positions of millions of stars in the early Milky Way (long before its iconic spiral arms developed), then hit a cosmic fast-forward button to show where the shriveled remains of those stars may have ended up after going supernova.

The resulting map revealed a "galactic underworld" of black holes and neutron stars (two forms of extremely dense stellar remnants), which lurks in every corner of the Milky Way — and far beyond it as well.

According to the researchers, the galactic underworld stretches more than three times the height of the Milky Way itself, while as many as one third of the galaxy's dead stars have been jettisoned deep into space by the force of their own end-of-life explosions, never to return.

In their research, the team focused on two types of stellar remains: neutron stars — ultra dense stellar cores that pack a sun's worth of mass into a ball no wider than a city — and black holes, which are enormous objects so dense that not even light can escape their gravitational pull.

Astronomers have detected both classes of stellar remains in our galaxy, though not nearly enough to account for the billions of dead stars in the Milky Way's past.

Finding these ancient remains is tricky for two main reasons: one, the Milky Way has changed shape significantly over the past 13 billion years, meaning the galactic underworld does not neatly overlap with the current distribution of stars in our galaxy; and two, stars that die via supernova can be "kicked" great distances in random directions by the force of the explosion, ending up on the fringes of the galaxy or lost to intergalactic space.

The remainder of the dead stars are scattered wildly to all sides of the galaxy, in clear defiance of the spiral-shaped distribution of stars visible today.

"These compact remnants of dead stars show a fundamentally different distribution and structure to the visible galaxy," Sweeney added.


1 Adele Hilariously Brings Her Megan Thee Stallion Choreography To Vegas Residency - HuffPost

Nov 20, 2022 # entertainment 31 secs

2 12 Extraordinary Games You'll Want On Your Wishlist Straight Away - Kotaku

Nov 25, 2022 # technology 1 min, 39 secs

3 Astronomer Royal Martin Rees: We're in a race between science education and catastrophe - Salon

Nov 20, 2022 # science 1 min, 4 secs

4 The Wild Boy, Sin Kiske Joins the Fray! - Arc System Works

Nov 22, 2022 # technology 14 secs

5 Two Black Holes Met by Chance, And It Created Something Never Seen Before - ScienceAlert

Nov 24, 2022 # science 51 secs

6 Magalu (MGLU3), Via (VIIA3), Americanas (AMER3): o que a Black Friday diz sobre as ações das companhias após um 3º tri desafiador

Nov 25, 2022 # breaking 2 mins, 20 secs

7 How Aisha Wahab Beat The Naysayers To Become California's First Muslim State Senator

Nov 25, 2022 # breaking 1 min, 3 secs

8 Walmart shooting gunman bought gun hours before deadly rampage and left a "death note" on his phone - CBS News

Nov 25, 2022 # politics 52 secs

9 'You handled that thing for 4 years': Woman says boyfriend asked her to Venmo him $7 for cold medicine he bought her - msnNOW

Nov 26, 2022 # politics 59 secs

10 The iPad Air 2022 has a hidden discount on Amazon - SFGATE

Nov 24, 2022 # technology 16 secs

11 Young & Restless: Danger is Coming for Diane and Ashley — Plus, Trouble Ahead for Sally - Soaps.com

Nov 26, 2022 # entertainment 1 min, 21 secs

12 What’s Next for Todd and Julie Chrisley After "Difficult Day" of Prison Sentencing - Yahoo Entertainment

Nov 23, 2022 # politics 12 secs

13 NASA's James Webb Space Telescope - the Most Incredible Images So Far - IGN

Nov 21, 2022 # politics 20 secs

14 Kim Kardashian Just Hit Kanye West Where It Hurts By Wearing Adidas And Balenciaga Outfit On Instagram - Yahoo Life

Nov 24, 2022 # entertainment 50 secs

15 ‘The Masked Singer’ Reveals Identities of the Scarecrow and Sir Bugaboo: Here’s Who They Are - Variety

Nov 24, 2022 # entertainment 0 secs

16 Elton John rockets toward retirement at Dodger Stadium - The Associated Press - en Español

Nov 21, 2022 # entertainment 59 secs
SUBSCRIBE

Get monthly updates and free resources.

CONNECT WITH US

© Copyright 2022 365NEWSX - All RIGHTS RESERVED