"China's Sky Eye" releases cosmic electronic music! Netizens: Are aliens singing a little song for us?

Fast Radio Burst (FRB)

It is the brightest radio burst in the universe.

January 5, 2022

Chinese Academy of Sciences in "China Sky Eye"

At the 2021 Important Achievements Release Conference

Review

"China's Sky Eye" FAST successfully captured

The largest sample of fast radio burst events to date

And demonstrated based on this fast radio burst

Outbreak event collection

Sound wave music created by radio wave waveform

Beyond Sonic Music

At the press conference

The "China Sky Eye" FAST was also released

Operation status and a series of important scientific achievements

Millisecond pulsars continue to be discovered

FAST neutral hydrogen spectrum measures interstellar magnetic field

Significant progress

The largest fast radio burst event sample ever obtained

Full spectrum of fast radio burst rates revealed for first time

Its bimodal structure

…

Obvious advantages based on ultra-high sensitivity

FAST has become

A powerful tool for sky observation in the field of medium and low frequency radio astronomy

Will produce in the future

More scientific achievements that deepen humanity’s understanding of the universe

Since its completion, FAST, the "Chinese Sky Eye"

Continuously improving operational efficiency and quality

More than 5,300 hours of observation per year

As of now

FAST has discovered about 500 pulsars

Become the world's

Most efficient device for pulsars discovered

Day and night change, the stars move

Known as the "China Sky Eye"

Five-hundred-meter Aperture Spherical Radio Telescope (FAST)

Penetrating the mysteries of the universe

Explore the unknown world

Video source: National Astronomical Observatories, Chinese Academy of Sciences

It is understood

FAST's priority and major scientific projects in 2021

50% of the total observation time

Since FAST was officially opened to the world for sharing

27 international projects from 14 countries

Approved to start scientific observations in August 2021

future

FAST will continue to operate with high quality

Expand the search for pulsars

Detection of gravitational waves and other scientific observations

In 2022,

Open 1% of observation time to primary and secondary school students nationwide

Primary and secondary school students put forward scientific ideas

Astronomers help them achieve this

China's Sky Eye

After more than 20 years of hard construction

Finally built

The journey of exploring extraterrestrial civilizations began

Netizens were particularly moved

In the comment section

Remembering the "Father of China's Sky Eye"

"Great Teacher Nan

May you become the brightest star in the sky

Appeared in 'China Sky Eye'"

"I once again thought of Nan Rendong, the master of the Sky Eye

For the 'China Sky Eye' project FAST

"Do your best"

National treasures and great craftsmen

"Eye in the Sky"

It is people's understanding of my country's 500-meter caliber

The common name of the FAST (Ferro Spherical Radio Telescope)

It can receive electromagnetic signals from billions of light years away.

It is a milestone in human exploration of outer space.

Set up in Pingtang County, Guizhou

It was built by a team led by Nan Rendong.

Nan Rendong (1945-2017)

Chinese astronomers

Researcher at the National Astronomical Observatories of the Chinese Academy of Sciences

Chief Scientist and Chief Engineer of the "Sky Eye" Project

Nan Rendong

Before that

Arecibo radio telescope in the United States

Once known as

"The first of the ten great engineering projects of the 20th century"

But compared with the "China Sky Eye"

The overall performance has been improved by 10 times

The most important tool of a country is made with life

From lagging behind to leading the way

China's Sky Eye

It became Nan Rendong's life path.

A firm and regretless choice

It condenses his life's hard work and sweat.

“Others have their own big equipment

We don’t have one, and I’d love to give it a try.”

1963

Nan Rendong was the top scorer in science in Jilin Province.

Admitted to the Radio Department of Tsinghua University with excellent results

He also studied at the Beijing Astronomical Observatory

Graduate student in astrophysics

He has traveled to the Netherlands, the former Soviet Union and other countries.

Visit famous observatories

He also served as a visiting professor at the National Astronomical Observatory of Japan.

And he decided to open China's "Sky Eye"

But it started with a "gap"

1990s

As countries around the world are building

When more sophisticated and advanced radio telescope equipment

China lags far behind in this area.

The largest radio telescope has an aperture of only 25 meters

After witnessing the advanced technology of other countries

Nan Rendong resolutely decided to return to China

Build a

The largest single-aperture radio telescope

End of 1995

Nan Rendong et al. proposed

Using Guizhou Karst Depression to Construct Spherical Reflectors

That is, the "Arecibo-type antenna array"

Karst Engineering Concept

This concept originated from the

The world's most advanced radio telescope

Arecibo Telescope in the United States

“Others have their own big equipment

We don’t have one, and I’d love to give it a try.”

For this sentence

He leaned on a bamboo pole

Running persistently in the depths of the mountains

Drink muddy water and eat cold dry food

Traveling through hundreds of places

“For site selection

Teacher Nan had almost visited all

All the depressions there"

His originally black beard and hair

It gradually turned white.

Nan Rendong led the team through mountains and rivers

Overcoming difficulties

To find the right depression

Nan Rendong and his team

With more than 300 satellite remote sensing images

Trekking in the mountains of southwest China

When investigating the depression

He was nearly washed down the mountain by a flash flood.

Such a danger

In the first 12 years of selecting a site for FAST,

Always with Nan Rendong

He said:
“I couldn’t find a suitable depression.

I will never close my eyes in my life!"

final

The team selected more than 300 candidate depressions

I have chosen a unique place on earth.

Best suited for building the largest single caliber

Radio telescope sites

This station address

In Pingtang County, Guizhou Province

A place called "Dawotang"

“We want to build the world’s most advanced

How can a radio telescope become obsolete? "

After the CAS-supported project initiated preliminary research

Some foreign experts believe

This project is outdated

During this period

Arecibo Telescope in the United States

No longer open to the public

Nan Rendong firmly believed:

“We want to build the world’s most advanced

Radio telescope

How can it be outdated? "

July 2007

National Development and Reform Commission approved

500-meter Aperture Spherical Radio Telescope Project

Official project launch

Construction started from this project

Nan Rendong's Figure

Often appears at construction sites

August 2010

On the eve of the start of the 500-meter Aperture Spherical Radio Telescope project

Nan Rendong learned

All the cable net experiments done in the early stage have failed

He was extremely anxious

Nan Rendong racked his brains

Remind everyone:

"We have no way out, we must do it again!"

After nearly a hundred failures

Nan Rendong organized a research

Finally, a strength of 500 MPa was developed.

Steel cable that can withstand 2 million stretches

Improve the material technology to 2.5 times the national standard

Nan Rendong (right) discusses technical issues with engineering technicians at the construction site

It can be said

500m spherical diameter

Independent innovation in radio telescope projects

Almost everything is inseparable from Nan Rendong

He often said:

“I’m not a strategic master.

I am a tactical old worker.”

From project site selection to excavation

To install the ring beam and feed support tower

Cable net, panel laying

…

Until completion

Looking down

500m spherical diameter

A radio telescope is like a flower

Under the careful care of Nan Rendong

From the bud

To bloom brilliantly

Overlooking the 500-meter Aperture Spherical Radio Telescope

September 25, 2016

The 500-meter Aperture Spherical Radio Telescope is officially put into use

The afternoon before the FAST opening ceremony

Nan Rendong, who was already very weak from lung cancer

Insist on flying from Beijing to Guizhou

Go to FAST Base

That was the first time he saw

This huge telescope

After it is fully built

He spent 22 years of hard work

Finally in the southwest of the motherland

Opening the "Eye of the Sky" for China

General Secretary Xi Jinping sent a congratulatory letter

Affirmed the project

To achieve major original breakthroughs in my country's scientific frontiers

Accelerating innovation-driven development is of great significance

October 10, 2017

National Astronomical Observatory of the Chinese Academy of Sciences holds a press conference

Announced that the "Sky Eye" received pulsar signals for the first time

September 15, 2017

Nan Rendong, 72, closed his eyes forever

He is the

China's Sky Eye

Burnt out a lifetime

Opened the Chinese

Questioning the "eyes" of the universe

October 15, 2018

The National Astronomical Observatory of the Chinese Academy of Sciences announced

The international permanent number is

Asteroid 79694

Officially named "Nan Rendong Star"

Jiang Peng, chief engineer of the "China Sky Eye", said:

“It is currently independently developed by our country.

The world's largest and most sensitive

Single-aperture radio telescope

It is also the first

A major scientific research infrastructure that has attracted worldwide attention"

Relying on the "China Sky Eye" in the low-frequency radio band

World-leading observation capabilities

Chinese astronomers

Pulsar search capability and efficiency

Already far ahead of foreign pulsar search teams

"What the old man did to us

Are you satisfied? "

When asked

If it's still possible

Can make Nan Lao feel

What I want to say to him most

Jiang Peng, chief engineer of the "China Sky Eye", replied:

"Is the old man satisfied with what we have done?"

There is a new "Nan Rendong" star in the sky

Guarding the "China Sky Eye"

Also watching over the young generation of Chinese astronomers

now

A large number of scientific researchers

Staying deep in the mountains

They inherited Nan Rendong's legacy

Continue to watch over FAST

Whenever night falls

The brightest star in the sky: Nan Rendong

Far from FAST

…

Source: Communist Youth League Central Committee (ID: gqtzy2014) Comprehensive Xinhua News Agency, Guizhou Reform, Xinhuanet, CCTV National Memory, Times Model Release Hall, Weibo account @People's Daily, @Xinhuanet, video account @People's Daily, Xinhuanet client, Tencent, netizens' comments