Author Topic: CAS - Einstein Probe (Aiyinsitan Tanzhen) - updates  (Read 7985 times)

Offline bolun

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The Chinese Academy of Sciences (CAS) spacecraft Einstein Probe is ready to launch in January 2024. Equipped with a new generation of X-ray instruments with high sensitivity and a very wide view, this mission will survey the sky and hunt for powerful blasts of X-ray light coming from mysterious celestial objects such as neutron stars and black holes.

Einstein Probe is a collaboration led by CAS with the European Space Agency (ESA) and the Max Planck Institute for Extraterrestrial Physics (MPE), Germany.

Related links:

- CAS: http://www.nssc.cas.cn/epen/

- ESA: https://www.esa.int/Science_Exploration/Space_Science/Einstein_Probe_factsheet

- Max Planck Institute: https://www.mpe.mpg.de/7867826/EinsteinProbe

Image credit: CAS
« Last Edit: 08/14/2025 10:15 am by bolun »

Offline bolun

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Re: CAS - Aiyinsitan Tanzhen (Einstein Probe) - updates
« Reply #1 on: 12/27/2023 02:39 pm »
Launch thread:

Aiyinsitan Tanzhen (Einstein Probe) - CZ-2C - XSLC - January 2024

https://forum.nasaspaceflight.com/index.php?topic=58082.0

Offline bolun

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Re: CAS - Aiyinsitan Tanzhen (Einstein Probe) - updates
« Reply #2 on: 12/27/2023 02:43 pm »
Einstein Probe in a nutshell

Einstein Probe will study the Universe in X-ray light. Equipped with a new generation of X-ray instruments with high sensitivity and a very wide view, this mission will survey the sky and hunt for powerful blasts of X-ray light coming from mysterious celestial objects such as neutron stars and black holes.

Some of the key questions that Einstein Probe will help answer are: How common are black holes and how do they swallow matter? What powers the jets of high-energy particles being spewed out from discs of blazing material circling these exotic objects? What kind of events produce gravitational waves? What happens when a star explodes and goes supernova?

To achieve its science goals, the Einstein Probe spacecraft is equipped with a new generation of instruments with high sensitivity and the ability to observe large areas of the sky: the Wide-field X-ray Telescope (WXT) and the Follow-up X-ray Telescope (FXT).

Einstein Probe is a collaboration led by CAS with the European Space Agency (ESA) and the Max Planck Institute for Extraterrestrial Physics (MPE), Germany. In return for contributing to the development of this mission and the definition of its scientific goals, ESA will get access to 10% of the data generated by Einstein Probe’s observations.

- Related article: Innovative X-ray lobster-eye mission set to launch

https://www.esa.int/ESA_Multimedia/Images/2023/12/Einstein_Probe_in_a_nutshell

Image credit: ESA

Offline bolun

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Re: CAS - Aiyinsitan Tanzhen (Einstein Probe) - updates
« Reply #3 on: 01/09/2024 08:00 am »
Einstein Probe lifts off on a mission to monitor the X-ray sky

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The Chinese Academy of Sciences (CAS) spacecraft Einstein Probe lifted off on a Chang Zheng (Long March) 2C rocket from the Xichang Satellite Launch Centre in China at 15:03 CST / 07:03 GMT / 08:03 CET on 9 January 2024. With the successful launch, Einstein Probe began its mission to survey the sky and hunt for bursts of X-ray light from mysterious objects such as neutron stars and black holes.

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After launch, Einstein Probe reached its orbit at an altitude of approximately 600 km. The spacecraft circles the Earth every 96 minutes with an orbital inclination of 29 degrees and it is able to monitor almost the full night-sky in just three orbits.

In the next six months, the operation team will be engaged in testing and calibrating the instruments. After this preparation phase, Einstein Probe will spend at least three years attentively watching the entire X-ray sky.

https://www.esa.int/ESA_Multimedia/Images/2024/01/Einstein_Probe_lifts_off_on_a_mission_to_monitor_the_X-ray_sky

Image credit: Chinese Academy of Sciences

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Re: CAS - Aiyinsitan Tanzhen (Einstein Probe) - updates
« Reply #4 on: 01/10/2024 03:08 pm »

Offline bolun

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Re: CAS - Aiyinsitan Tanzhen (Einstein Probe) - updates
« Reply #5 on: 04/27/2024 06:38 pm »
Einstein Probe opens its wide eyes to the X-ray sky

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The first images captured by the innovative mission were presented at the 7th workshop of the Einstein Probe consortium in Beijing. They illustrate the satellite’s full potential and show that its novel optics, which mimic a lobster’s eyes, are ready to monitor the X-ray sky. The space X-ray telescope zoomed in on a few well-known celestial objects to give us a hint of what the mission is capable of.

Credits: EPSC, NAO/CAS; DSS; ESO and CAS

Offline bolun

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Re: CAS - Aiyinsitan Tanzhen (Einstein Probe) - updates
« Reply #6 on: 11/04/2024 05:15 pm »
https://x.com/esascience/status/1853437051045097860

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The new X-ray space telescope Einstein Probe has detected a mysterious, transient celestial object coded EP240408a.

On 8 April, #EinsteinProbe recorded the extreme X-ray flare, which increased in brightness by 300 times and lasted for only 12 seconds. The X-ray light from this source disappeared approximately 10 days later 👉

https://english.cas.cn/newsroom/cas_media/202411/t20241101_693446.shtml

The mission is a collaboration led by the Chinese Academy of Sciences with @ESA & @MPE_Garching

Offline bolun

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Re: CAS - Aiyinsitan Tanzhen (Einstein Probe) - updates
« Reply #7 on: 02/20/2025 01:05 pm »
A Tale of two stars

Einstein Probe captured the X-ray flash from a very elusive celestial pair, consisting of a big, hot star, more than 10 times larger than our Sun, and a small compact white dwarf, with a mass similar to our star.

Scientists think that the couple started off together, as a better-matched binary pair consisting of two rather big stars, six and eight times more massive than our Sun.

The bigger star exhausted its nuclear fuel earlier and started to expand, shedding matter to its companion. First, gas in its puffed-up outer layers got pulled in by the companion; then its remaining outer shells got ejected, forming an envelop around the two stars, which later became a disc, and finally dissolved.

By the end of this drama, the companion star had grown to be 12 times the mass of the Sun, while the outstripped core of the other had collapsed to become a white dwarf of just over one solar mass. Now, it is the turn of the white dwarf to steal and gobble up material from the outer layers of the Be star.

Related article: Einstein Probe catches X-ray odd couple

https://www.esa.int/ESA_Multimedia/Images/2025/02/A_Tale_of_two_stars

Image credit: ESA

Offline bolun

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Re: CAS - Einstein Probe (Aiyinsitan Tanzhen) - updates
« Reply #8 on: 08/14/2025 10:30 am »
Einstein Probe Discovers New Type of X-ray Transient and Reveals Mysterious Link to Supernovae

07/07/25

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China's Einstein Probe (EP) astronomical satellite has identified a new category of cosmic explosions—faint, fast X-ray transients accompanying the death of massive stars. The satellite's first-of-its-kind detection of transient source EP240414a, a mysterious 150-second X-ray flare from a collapsing star 4 billion light-years away, challenges existing theories of stellar demise and reveals a hidden population of stellar explosions. The breakthrough findings appear in Nature Astronomy on June 26, 2025.

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Publication Details:

Title: "A fast X-ray transient from a weak relativistic jet associated with a type Ic-BL supernova" 

Journal: Nature Astronomy 

DOI: https://www.nature.com/articles/s41550-025-02571-1 

Release Date: June 26, 2025

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Re: CAS - Einstein Probe (Aiyinsitan Tanzhen) - updates
« Reply #9 on: 12/01/2025 05:13 pm »
China Focus: Chinese satellite reveals mysterious cosmic "fireworks".

In the course of almost two years after China's astronomical satellite named Einstein Probe (EP) was launched, it has managed to capture many extraordinary transient events in the universe that flicker like fireworks, thereby helping expand human understanding of extreme physical phenomena in the cosmos.

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