Arab Today, arab today exploding star shines brighter than any supernova seen
Last Updated : GMT 01:54:31
Arab Today, arab today
Arab Today, arab today

Exploding star shines brighter than any supernova seen

Arab Today, arab today

Arab Today, arab today Exploding star shines brighter than any supernova seen

Superluminous supernova ASASSN-15lh was first glimpsed by twin telescopes
Miami - AFP

The brightest exploding star ever detected has bewildered scientists with its incredible power, shining 570 billion times brighter than the Sun and twice as potent as any known supernova, scientists said Thursday.

Known as ASASSN-15lh, it is about 3.8 billion light years away from Earth, making it among the closest ever found in a class known as superluminous supernova, said the report in the journal Science.

"ASASSN-15lh is the most powerful supernova discovered in human history," said study lead author Subo Dong, an astronomer and research professor at the Kavli Institute for Astronomy and Astrophysics at Peking University.

At the heart of the supernova is an object that measures just 10 miles (16 kilometers) across.

But it is 200 times more powerful than the average supernova, and 20 times brighter than all the stars in our Milky Way Galaxy combined, leaving astronomers puzzled about how it generates such energy.

"We have to ask, how is that even possible?" said co-principal investigator Krzysztof Stanek of Ohio State University, which leads a project using a host of small telescopes around the world to detect bright objects in the universe, known as the All Sky Automated Survey for Supernovae, or ASAS-SN, pronounced "assassin."

ASAS-SN has discovered around 250 supernovae since 2014, including the latest one which began to flare up in June 2015.

It was first glimpsed by twin telescopes with 14-centimeter diameter lenses in Cerro Tololo, Chile.

Astronomers spread the word about the sighting of ASASSN-15lh, soon more observations poured in from larger, ground-based telescopes around the world and NASA's Swift satellite.

The 10-meter South African Large Telescope (SALT) observed the elemental signatures that verified ASASSN-15lh's distance and potency.

"Upon seeing the spectral signatures from SALT and realizing that we had discovered the most powerful supernova yet, I was too excited to sleep the rest of the night," said Dong, who learned of the SALT results at 2 AM in Beijing on July 1, 2015.

As to what could be powering the supernova, scientists remain stumped but hopeful that the Hubble Space Telescope will tell them more in the coming months about the supernova and the galaxy it calls home.

"The honest answer is at this point that we do not know what could be the power source for ASASSN-15lh," said Dong.

One theory is that the object at the center of the blast could be a very rare type of star called a magnetar, which spins rapidly and possesses an ultra strong magnetic field.

But if further research shows that the object lies in the center of a large galaxy, then it may not be a magnetar after all, or even a supernova.

Instead, it could be a sign of "unusual nuclear activity around a supermassive black hole," said a statement by Ohio University.

"It would be something never before seen in the center of a galaxy," it said.

 

arabstoday
arabstoday

Name *

E-mail *

Comment Title*

Comment *

: Characters Left

Mandatory *

Terms of use

Publishing Terms: Not to offend the author, or to persons or sanctities or attacking religions or divine self. And stay away from sectarian and racial incitement and insults.

I agree with the Terms of Use

Security Code*

Arab Today, arab today exploding star shines brighter than any supernova seen Arab Today, arab today exploding star shines brighter than any supernova seen

 



Name *

E-mail *

Comment Title*

Comment *

: Characters Left

Mandatory *

Terms of use

Publishing Terms: Not to offend the author, or to persons or sanctities or attacking religions or divine self. And stay away from sectarian and racial incitement and insults.

I agree with the Terms of Use

Security Code*

Arab Today, arab today exploding star shines brighter than any supernova seen Arab Today, arab today exploding star shines brighter than any supernova seen

 



Arab Today, arab today
Arab Today, arab today Designer Aql Faqih aspires to innovation

GMT 18:41 2017 Friday ,20 October

Designer Aql Faqih aspires to innovation
Arab Today, arab today Barcelona through George Orwell’s eyes

GMT 13:44 2017 Friday ,20 October

Barcelona through George Orwell’s eyes
Arab Today, arab today Etiquette expert underlines importance of gifts

GMT 17:52 2017 Sunday ,03 September

Etiquette expert underlines importance of gifts
Arab Today, arab today Tillerson heads to Gulf, downbeat

GMT 09:23 2017 Friday ,20 October

Tillerson heads to Gulf, downbeat
Arab Today, arab today Hiring not part of Alibaba pledge

GMT 11:26 2017 Wednesday ,18 October

Hiring not part of Alibaba pledge
Arab Today, arab today
Arab Today, arab today
Arab Today, arab today World's deepest lake in peril

GMT 15:54 2017 Friday ,20 October

World's deepest lake in peril
Arab Today, arab today Ex-French minister Dati wants tough action

GMT 10:54 2017 Thursday ,19 October

Ex-French minister Dati wants tough action
Arab Today, arab today Delhi braces for pollution 'airpocalypse'

GMT 16:07 2017 Friday ,20 October

Delhi braces for pollution 'airpocalypse'
Arab Today, arab today The history of solar eclipses

GMT 05:16 2017 Sunday ,20 August

The history of solar eclipses
Arab Today, arab today Sweden to get biggest car factory

GMT 14:10 2017 Friday ,20 October

Sweden to get biggest car factory
Arab Today, arab today Mercedes says recalls 400,000 UK cars

GMT 06:56 2017 Tuesday ,17 October

Mercedes says recalls 400,000 UK cars
Arab Today, arab today Actress Shery Adel happy for Egypt’s qualification

GMT 08:57 2017 Wednesday ,18 October

Actress Shery Adel happy for Egypt’s qualification
Arab Today, arab today Massacre fears spark race

GMT 19:09 2017 Thursday ,19 October

Massacre fears spark race

GMT 07:47 2017 Tuesday ,17 October

Hussein Fahmy happy for honoring in festival

GMT 18:15 2017 Monday ,16 October

British actress becomes fifth woman

GMT 16:53 2017 Tuesday ,05 September

Youssra depended on colored foam

GMT 16:00 2017 Wednesday ,18 October

Climate-disrupting volcanoes helped topple

GMT 10:46 2017 Saturday ,05 August

Nanis reveals simple ideas for home renovation

GMT 06:43 2017 Wednesday ,18 October

Fake dentists ply brisk trade

GMT 06:49 2017 Tuesday ,17 October

EasyJet, Lufthansa among seven to bid

GMT 17:12 2017 Monday ,07 August

Al-Shawaifi reveals secrets of total solar eclipse

GMT 20:46 2017 Thursday ,19 October

Qualcomm files lawsuits in China to ban iPhones

GMT 16:53 2017 Saturday ,02 September

Mai importance of gifts during Eid Al-Adha
Arab Today, arab today
Arab Today, arab today
 
 Arab Today Facebook,arab today facebook  Arab Today Twitter,arab today twitter Arab Today Rss,arab today rss  Arab Today Youtube,arab today youtube  Arab Today Youtube,arab today youtube
arabstoday arabstoday arabstoday arabstoday
arabstoday arabstoday arabstoday
arabstoday
بناية النخيل - رأس النبع _ خلف السفارة الفرنسية _بيروت - لبنان
arabstoday, Arabstoday, Arabstoday