토토사이트
Advertisement
  • 홈
    • 카지노사이트
    • 도박사이트
    • 룰렛 사이트
    • 라이브카지노
    • 바카라사이트
    • 안전카지노
  • 경제
  • 파이낸스
  • 정치
  • 투자
    • Invest in Amazon $250
  • 암호화폐
    • Best Bitcoin Accounts
    • Bitcoin Robot
      • Quantum AI
      • Bitcoin Era
      • Bitcoin Aussie System
      • Bitcoin Profit
      • Bitcoin Code
      • eKrona Cryptocurrency
      • Bitcoin Up
      • Bitcoin Prime
      • Yuan Pay Group
      • Immediate Profit
      • BitQH
      • Bitcoin Loophole
      • Crypto Boom
      • Bitcoin Treasure
      • Bitcoin Lucro
      • Bitcoin System
      • Oil Profit
      • The News Spy
      • Bitcoin Buyer
      • Bitcoin Inform
      • Immediate Edge
      • Bitcoin Evolution
      • Cryptohopper
      • Ethereum Trader
      • BitQL
      • Quantum Code
      • Bitcoin Revolution
      • British Trade Platform
      • British Bitcoin Profit
    • Bitcoin Reddit
    • Celebrities
      • Dr. Chris Brown Bitcoin
      • Teeka Tiwari Bitcoin
      • Russell Brand Bitcoin
      • Holly Willoughby Bitcoin
  • 온라인 카지노
    • 카지노에서 승리하는 방법
    • 카지노에서 블랙잭을 플레이하는 방법
    • 카지노에서 룰렛을 플레이하는 방법
    • 바카라 게임 방법
    • 카지노 카드 게임을 하는 방법
    • 온라인 카지노를 플레이하는 방법
    • 카지노에 무엇을 입어야합니까?
    • 카지노에서 크랩스를 플레이하는 방법
  • 스포츠 베팅
    • 야구에 베팅하는 방법
    • 축구에 베팅하는 방법
    • NFL 게임에 베팅하는 방법
    • 슬롯 머신에서 승리하는 방법
    • 스포츠 베팅은 어떻게 작동하나요?
  • 슬롯 머신
    • 가장 높은 지불금 슬롯 머신
    • 슬롯 토너먼트는 어떻게 진행되나요?
  • 온라인 베팅
    • 베팅 배당률은 어떻게 작동하나요?
    • 머니라인 베팅이 뭐야?
    • 슈퍼볼에 베팅하는 방법
    • 라운드 로빈 베팅은 어떻게 진행되나요?
    • UFC 경기에 베팅하는 방법
    • 매칭베팅이 뭐야?
    • 경마에 베팅하는 방법
    • 스프레드 베팅이란 무엇입니까?
No Result
View All Result
  • 홈
    • 카지노사이트
    • 도박사이트
    • 룰렛 사이트
    • 라이브카지노
    • 바카라사이트
    • 안전카지노
  • 경제
  • 파이낸스
  • 정치
  • 투자
    • Invest in Amazon $250
  • 암호화폐
    • Best Bitcoin Accounts
    • Bitcoin Robot
      • Quantum AI
      • Bitcoin Era
      • Bitcoin Aussie System
      • Bitcoin Profit
      • Bitcoin Code
      • eKrona Cryptocurrency
      • Bitcoin Up
      • Bitcoin Prime
      • Yuan Pay Group
      • Immediate Profit
      • BitQH
      • Bitcoin Loophole
      • Crypto Boom
      • Bitcoin Treasure
      • Bitcoin Lucro
      • Bitcoin System
      • Oil Profit
      • The News Spy
      • Bitcoin Buyer
      • Bitcoin Inform
      • Immediate Edge
      • Bitcoin Evolution
      • Cryptohopper
      • Ethereum Trader
      • BitQL
      • Quantum Code
      • Bitcoin Revolution
      • British Trade Platform
      • British Bitcoin Profit
    • Bitcoin Reddit
    • Celebrities
      • Dr. Chris Brown Bitcoin
      • Teeka Tiwari Bitcoin
      • Russell Brand Bitcoin
      • Holly Willoughby Bitcoin
  • 온라인 카지노
    • 카지노에서 승리하는 방법
    • 카지노에서 블랙잭을 플레이하는 방법
    • 카지노에서 룰렛을 플레이하는 방법
    • 바카라 게임 방법
    • 카지노 카드 게임을 하는 방법
    • 온라인 카지노를 플레이하는 방법
    • 카지노에 무엇을 입어야합니까?
    • 카지노에서 크랩스를 플레이하는 방법
  • 스포츠 베팅
    • 야구에 베팅하는 방법
    • 축구에 베팅하는 방법
    • NFL 게임에 베팅하는 방법
    • 슬롯 머신에서 승리하는 방법
    • 스포츠 베팅은 어떻게 작동하나요?
  • 슬롯 머신
    • 가장 높은 지불금 슬롯 머신
    • 슬롯 토너먼트는 어떻게 진행되나요?
  • 온라인 베팅
    • 베팅 배당률은 어떻게 작동하나요?
    • 머니라인 베팅이 뭐야?
    • 슈퍼볼에 베팅하는 방법
    • 라운드 로빈 베팅은 어떻게 진행되나요?
    • UFC 경기에 베팅하는 방법
    • 매칭베팅이 뭐야?
    • 경마에 베팅하는 방법
    • 스프레드 베팅이란 무엇입니까?
No Result
View All Result
토토사이트
No Result
View All Result

Here Be Dragons: The Supermassive Black Hole that’s Growing Impossibly Fast

admin by admin
July 12, 2015
in Uncategorized
0
0
SHARES
2
VIEWS
Share on FacebookShare on Twitter

by Kevin Pimbblet, The Conversation

“Here be dragons” was a phrase once used on ancient maps, often accompanied by mythical sketches, to highlight an unexplored or potentially dangerous area. Astronomers might want to borrow this warning to label the centre of galaxies, which contain supermassive black holes.

There’s a lot we don’t know about these monsters – and scientists have just found one that even defies the laws that are meant to govern its growth. By growing to a huge mass at an exceptionally fast rate, this black hole indicates that there could be more – and bigger – supermassive black holes out there than we previously thought.

No mythical creatures

These proverbial “dragons” of astronomy are no mere myth. We have many lines of evidence supporting their existence. These range from infra-red observations of very distant galaxies and quasars to infer their masses, through to observations of our very own Milky Way.

The animation below shows the orbits of stars near the centre of the Milky Way. They were observed over more than a decade to be orbiting around a dark, unseen object.


Motion of stars around a black hole / ESO

By applying simple orbital physics, we know that this dark object must have a large mass to cause these orbits by its gravitational pull – perhaps more than 4m solar masses. However it must take up a tiny amount of space as it doesn’t “hit” the orbiting stars. Only a black hole can really fit the bill as an explanation for what this unseen object can be.

Disturbingly though, this is just a middle-of-the-road mass range for supermassive black holes. Discoveries of black holes having ten billion solar masses are being made in other galaxies.

Growing a supermassive black hole

Unlike your average black hole, supermassive black holes are not simply the product of the death of a star – they are more massive than any star could produce on its own. So where do they come from?

There are a number of theories. Arguably the main one is that they must have been “born” in the younger moments of the universe from the earliest star clusters. From there, they need to grow rapidly to gain the amount of mass they have.

In part, this can be explained by accretion of gas and in-falling materials from the galaxy. Indeed, recent observations by the European Southern Observatory suggest that the Milky Way’s own supermassive black hole once had such a dinner.

But the growth of these supermassive black holes are probably not entirely due to accreting material from their own galaxy. If two galaxies were to collide with each other, their black holes gain a new source of food to fuel their growth. They might also merge with one another to create an even bigger black hole.

In this manner, the growth of black holes is understood to be intimately tied to the growth of their parent galaxy. Indeed, the mass of a supermassive black hole appears to be tightly correlated with how fast stars orbit inside of the host galaxy.

At an even deeper level, the black hole can act as a kind of thermostat for star formation inside its host galaxy. Energy and/or momentum that is generated by the black hole can cause star formation to stop in its host galaxy. This is because the energy heats up the gas inside a galaxy so that stars may not form as readily.


Lennox Globe by B F Da Costa Karrigara/wikimedia commons, CC BY-SA

CID-947: the rebel

But in a new study published in Science, astronomers report the discovery of a supermassive black hole that seems to break the synchronisation of galaxy growth with black hole growth.

Using Keck telescope in Hawaii, the authors found a galaxy with an atypically large supermassive black hole in its centre (CID-947). Its ratio of black hole mass to stellar mass is enormous – almost an order of magnitude bigger than what might otherwise be expected.

With a mass of 7 billion solar masses, this supermassive black hole compares favourably to some of the most massive known. Here is where it gets really interesting. Using a measurement known as redshift, which tells us how far away – and thereby how old – a galaxy is, the team could see that this supermassive black hole must have grown exceptionally fast. Most models predict black hole masses in the range of millions of solar masses, rather than billions, for a galaxy of this age.

Meanwhile, the galaxy is still in the process of forming stars, its black hole has not (yet) caused this to stop. The study concludes that CID-947’s black hole is in the final stages of forming and we are witnessing the cessation of accretion on to it.

This is significant, as CID-947 can be interpreted as an early version of the most (extremely) massive galaxies in the present day universe. That is because if we have humongous galaxies in the universe today, then they must have come from something massive in the earlier universe. Importantly, they’re in place at early times and have not yet shut down their host galaxy star formation – meaning they could well grow even bigger with time.

In other words: there may be more (and bigger) “dragons” than we thought lurking out there. As we are exploring bigger and bigger parts of the universe, maybe a map with clear warning signs is in order?

The ConversationKevin Pimbblet is Senior Lecturer in Physics at University of Hull.

This article was originally published on The Conversation. Read the original article.

Previous Post

U.S. Obesity Still Rising

Next Post

Yanis Varoufakis: Do Europeans Approve of Dr. Schauble’s Plan?

Related Posts

Bitcoin Blasts Off to $34K Amid Soaring ETF Hype!
Economics

Bitcoin Blasts Off to $34K Amid Soaring ETF Hype!

by John Wanguba
October 23, 2023
Crypto Enthusiasts Sound the Alarm as Bitcoin Surges to 3-Month High Just Shy of $31K
Economics

Crypto Enthusiasts Sound the Alarm as Bitcoin Surges to 3-Month High Just Shy of $31K

by John Wanguba
October 23, 2023
Addresses With Over 1 Bitcoin Surge To New Highs: Investor Optimism Soars
Econ Intersect News

Addresses With Over 1 Bitcoin Surge To New Highs: Investor Optimism Soars

by John Wanguba
September 29, 2023
Unlocking the Future: Google's Game-Changing Move to Advertise NFT Games Starting September 15th
Business

Unlocking the Future: Google’s Game-Changing Move to Advertise NFT Games Starting September 15th

by John Wanguba
September 8, 2023
Bitcoin Is Finally Trading Perfectly Like 'Digital Gold'
Economics

Bitcoin Is Finally Trading Perfectly Like ‘Digital Gold’

by John Wanguba
August 5, 2023
Next Post

Yanis Varoufakis: Do Europeans Approve of Dr. Schauble's Plan?

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Browse by Category

  • Business
  • Econ Intersect News
  • Economics
  • Finance
  • Politics
  • Uncategorized

Browse by Tags

adoption altcoins bank banking banks Binance Bitcoin Bitcoin market blockchain BTC BTC price business China crypto crypto adoption cryptocurrency crypto exchange crypto market crypto regulation decentralized finance DeFi Elon Musk ETH Ethereum Europe Federal Reserve finance FTX inflation investment market analysis Metaverse NFT nonfungible tokens oil market price analysis recession regulation Russia stock market technology Tesla the UK the US Twitter

Archives

  • October 2023
  • September 2023
  • August 2023
  • July 2023
  • June 2023
  • May 2023
  • April 2023
  • March 2023
  • February 2023
  • January 2023
  • December 2022
  • November 2022
  • October 2022
  • September 2022
  • August 2022
  • July 2022
  • June 2022
  • May 2022
  • April 2022
  • March 2022
  • February 2022
  • January 2022
  • December 2021
  • November 2021
  • October 2021
  • September 2021
  • August 2021
  • July 2021
  • June 2021
  • May 2021
  • April 2021
  • March 2021
  • February 2021
  • January 2021
  • December 2020
  • November 2020
  • October 2020
  • September 2020
  • August 2020
  • July 2020
  • June 2020
  • May 2020
  • April 2020
  • March 2020
  • February 2020
  • January 2020
  • December 2019
  • November 2019
  • October 2019
  • September 2019
  • August 2019
  • July 2019
  • June 2019
  • May 2019
  • April 2019
  • March 2019
  • February 2019
  • January 2019
  • December 2018
  • November 2018
  • October 2018
  • September 2018
  • August 2018
  • July 2018
  • June 2018
  • May 2018
  • April 2018
  • March 2018
  • February 2018
  • January 2018
  • December 2017
  • November 2017
  • October 2017
  • September 2017
  • August 2017
  • July 2017
  • June 2017
  • May 2017
  • April 2017
  • March 2017
  • February 2017
  • January 2017
  • December 2016
  • November 2016
  • October 2016
  • September 2016
  • August 2016
  • July 2016
  • June 2016
  • May 2016
  • April 2016
  • March 2016
  • February 2016
  • January 2016
  • December 2015
  • November 2015
  • October 2015
  • September 2015
  • August 2015
  • July 2015
  • June 2015
  • May 2015
  • April 2015
  • March 2015
  • February 2015
  • January 2015
  • December 2014
  • November 2014
  • October 2014
  • September 2014
  • August 2014
  • July 2014
  • June 2014
  • May 2014
  • April 2014
  • March 2014
  • February 2014
  • January 2014
  • December 2013
  • November 2013
  • October 2013
  • September 2013
  • August 2013
  • July 2013
  • June 2013
  • May 2013
  • April 2013
  • March 2013
  • February 2013
  • January 2013
  • December 2012
  • November 2012
  • October 2012
  • September 2012
  • August 2012
  • July 2012
  • June 2012
  • May 2012
  • April 2012
  • March 2012
  • February 2012
  • January 2012
  • December 2011
  • November 2011
  • October 2011
  • September 2011
  • August 2011
  • July 2011
  • June 2011
  • May 2011
  • April 2011
  • March 2011
  • February 2011
  • January 2011
  • December 2010
  • August 2010
  • August 2009

Categories

  • Business
  • Econ Intersect News
  • Economics
  • Finance
  • Politics
  • Uncategorized
토토사이트

After nearly 11 years of 24/7/365 operation, Global Economic Intersection co-founders Steven Hansen and John Lounsbury are retiring. The new owner, a global media company in London, is in the process of completing the set-up of Global Economic Intersection files in their system and publishing platform. The official website ownership transfer took place on 24 August.

Categories

  • Business
  • Econ Intersect News
  • Economics
  • Finance
  • Politics
  • Uncategorized

Recent Posts

  • Bitcoin Blasts Off to $34K Amid Soaring ETF Hype!
  • Crypto Enthusiasts Sound the Alarm as Bitcoin Surges to 3-Month High Just Shy of $31K
  • Addresses With Over 1 Bitcoin Surge To New Highs: Investor Optimism Soars

© Copyright 2021 EconIntersect - Economic news, analysis and opinion.

No Result
View All Result
  • Home
  • Contact Us
  • Bitcoin Robot
    • Bitcoin Profit
    • Bitcoin Code
    • Quantum AI
    • eKrona Cryptocurrency
    • Bitcoin Up
    • Bitcoin Prime
    • Yuan Pay Group
    • Immediate Profit
    • BitIQ
    • Bitcoin Loophole
    • Crypto Boom
    • Bitcoin Era
    • Bitcoin Treasure
    • Bitcoin Lucro
    • Bitcoin System
    • Oil Profit
    • The News Spy
    • British Bitcoin Profit
    • Bitcoin Trader
  • Bitcoin Reddit

© Copyright 2021 EconIntersect - Economic news, analysis and opinion.