Free Newsletters - Space - Defense - Environment - Energy - Solar - Nuclear
..
. 24/7 Space News .




STELLAR CHEMISTRY
Extremely rare triple quasar found
by Staff Writers
Pasadena CA (SPX) Mar 14, 2013


An infrared image of the triple quasar system QQQ J1519+0627, made using the 3.5-m aperture telescope of the Calar Alto Observatory. The three quasars are labelled A, B and C. Credit: Emanuele Paolo Farina.

For only the second time in history, a team of scientists--including Carnegie's Michele Fumagalli--have discovered an extremely rare triple quasar system. Their work is published by Monthly Notices of the Royal Astronomical Society. It is available online.

Quasars are extremely bright and powerful sources of energy that sit in the center of a galaxy, surrounding a black hole. In systems with multiple quasars, the bodies are held together by gravity and are believed to be the product of galaxies colliding.

It is very difficult to observe triplet quasar systems, because of observational limits that prevent researchers from differentiating multiple nearby bodies from one another at astronomical distances. Moreover, such phenomena are presumed to be very rare.

By combining multiple telescope observations and advanced modeling, the team--led by Emanuele Farina of the University of Insubria in Como Italy--was able to find the triplet quasar, called QQQ J1519+0627.

The light from the quasars has traveled 9 billion light years to reach us, which means the light was emitted when the universe was only a third of its current age.

Advanced analysis confirmed that what the team found was indeed three distinct sources of quasar energy and that the phenomenon is extremely rare.

Two members of the triplet are closer to each other than the third. This means that the system could have been formed by interaction between the two adjacent quasars, but was probably not triggered by interaction with the more-distant third quasar.

Furthermore, no evidence was seen of any ultra-luminous infrared galaxies, which is where quasars are commonly found. As a result, the team proposes that this triplet quasar system is part of some larger structure that is still undergoing formation.

"Honing our observational and modeling skills and finding this rare stellar phenomenon will help us understand how cosmic structures assemble in our universe and the basic processes by which massive galaxies form," Fumagalli said.

"Further study will help us figure out exactly how these quasars came to be and how rare their formation is," Farina added.

This research was based on observations collected at the La Silla Observatory with the New Technology Telescope of the European Southern Observatory and at the Calar Alto Observatory with the 3.5m telescope of the Centro Astronomico Hispano Aleman.

.


Related Links
Carnegie Institution
Stellar Chemistry, The Universe And All Within It






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





STELLAR CHEMISTRY
Soccer Balls in Interstellar Space
Tokyo, Japan (SPX) Mar 11, 2013
An international team of astronomers led by Masaaki Otsuka (Academia Sinica Institute of Astronomy and Astrophysics or ASIAA) has detected the C60 fullerene (molecules of carbon with 60 atoms arranged in patterns resembling a soccer ball) (Note 1) in the dying star M1-11. Data from the Subaru Telescope, the Spitzer Space Telescope (SST), the Very Large Telescope (VLT), the 1.88 m telescope at th ... read more


STELLAR CHEMISTRY
Lunar Orbiter Image Recovery Project Seeks Public Support To Retrieve Apollo Era Moon Images

China sets moon mission re-entry test

Lunar impacts created seas of molten rock

China to use modified rocket for moon landing mission

STELLAR CHEMISTRY
Maryland explores adaptations strategies for survival on Mars

NASA rover finds conditions once suited to life on Mars

Curiosity Rover's Recovery Moving Forward

NASA Rover Finds Conditions Once Suited for Ancient Life on Mars

STELLAR CHEMISTRY
Technology to detect Alzheimer's takes SXSW prize

Basketball legend Shaq talks tech at SXSW

UK and Kazakhstan agree collaboration in space

Wyle To Provide NASA Ongoing Support For Human Space Flight

STELLAR CHEMISTRY
China's fourth space launch center to be in use in two years

China to launch new manned spacecraft

Woman expected again to join next China crew roster

China's space station will be energy-efficient

STELLAR CHEMISTRY
Canadian commands space station for first time

'Goody Bag' Filled With Sample Processing Supplies Arrives on Station

ESA's Columbus Biolab Facility

SpaceX set for third mission to space station

STELLAR CHEMISTRY
Vega receives its upper stage as the next mission's two primary passengers land in French Guiana

Grasshopper Successfully Completes 80M Hover Slam

Musk: 'I'd like to die on Mars'

Ariane 5 vehicle for next ATV resupply mission in Kourou

STELLAR CHEMISTRY
The Great Exoplanet Debate

Earth-sized planets in habitable zones are more common than previously thought

Astronomers Observe Planets Around Another Star Like Never Before

Astronomers Conduct First Remote Reconnaissance of Another Solar System

STELLAR CHEMISTRY
Breaking the final barrier: room-temperature electrically powered nanolasers

New Technique Creates Stronger, Lightweight Magnesium Alloys

Novel technique for chemical identification at the nanometer scale developed

Aspirin may lower melanoma risk




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement