In video to load. . .
Cover journalist willow is green
Beijing time is late on April 10 at 9 o'clock, hole of global head Zhang Hei is video announce.
The black hole is known as the universe in the most mysterious celestial bodies -- oneself does not give off light, explore directly hard, density cannot escape to Lian Guangdou greatly. And in the photograph that publishs in 10 evening, the aureola of the orange red below a completely black background presents alive person before, is this the appearance of the black hole?
Yuan Zaiying country attends square kilometre blast (Square Kilometre Array SKA) the Chen Xuelei of researcher of observatory of country of the Chinese Academy of Sciences of academic conference accepted cover news to interview after black hole photograph is released. Look in him, this piece appears some blurred images are very outstanding already, "The scientists of project group were forecasted according to theory last year, imitate black hole photograph, actual observation wants than imitate complex much, and the imitate photograph in check room already was close to this Zhang Genshi that announce very, I feel very ideal, proving this technology is very valuable. Proving this technology is very valuable..
Project scientist last year photograph of simulative black hole (Chen Xuelei is offerred)
As we have learned, the first is caught by the mankind video black hole is located in Virgo the center of M87 of a gigantic elliptical galaxy, be apart from the earth 55 million light-year, quality is 6.5 billion times of the sun about. Its core area is put in a shadow, aureola of shape of a crescent surrounds all round.
Chen Xuelei is chief scientist of group of dark energy of dark material of national observatory universe, his explanation says, picture center " pitch-dark " should call a black hole shadow, actual black hole is a few smaller than this shadow. "Red of the orange on the photograph uses delegate brightness, be not actual color. And black area looks to also be not represented in setting without material, just brightness is insufficient just. Just brightness is insufficient just..
The history of human attention black hole but restrospect to 18 centuries end. 1915, einstein puts forward true " foreknow " the broad sense of the black hole is relativistic. However, with respect to Lian Aiyin Si Tan ever also did not believe the black hole is true existence. After this, many scientist uses computation of broad sense the theory of relativity to reach really, put in such celestial bodies in the universe. 20 centuries 60 time, · benefit straps John of American astrophysical home first will " black hole " put forward as a scientific terminology.
Last time the mankind " listen " to the black hole, be 2015, observatory of wave of gravitation of American laser interferometer (LIGO) the gravitation wave signal that discovered two black holes are amalgamative. 2017, royal academy of sciences announces Sweden Nobel physics award awards American scientist Rainer Weiss, Kip S. Thorne and Barry C. Barish, in order to commends the contribution that they research a field in gravitation wave.
Universe of chief scientist of group of dark energy of dark material of researcher of observatory of country of the Chinese Academy of Sciences, universe, galaxy learns Chen Xuelei of department vice director.
Zheng Yongchun of scientist of national observatory planet says, "Previously, we can explore gravitation wave only, the source that can see gravitation wave this -- the appearance of the black hole. The source that can see gravitation wave this -- the appearance of the black hole..
Those who participate in this international collaboration is medium annals of Shenyang of director of observatory of Shanghai of square scientist, the Chinese Academy of Sciences is in by force April 10 release the spot to express, "This is the mankind obtains evidence of the first about the black hole immediate visual sense, confirmed the theory of relativity of Einstein broad sense falls to still hold water in extreme condition.
The film " interstellar pass through " in to the black hole appear formed many Everyman mysterious to this kind spherical the first impression, but the photograph that releases this and film show existing apparent difference mediumly, be film fault? Chen Xuelei explanation says, have a lot of kinds like stone, the black hole is differ in thousands ways, "A kind of specific parameter just chose to reveal in the film, true condition also often more complex. True condition also often more complex..
It is all round the black hole, the critical limits that the light cannot escape is called the radius of the black hole or " incident eyeshot " . Arrive to catch " invisible " black hole, 2017 arrived 14 days on April 5 between, come from the whole world the scientists of 30 many institutes are used distributing to differ at the whole world the array of 8 radio telescope of the area forms a fictitious telescopic network. This fictitious telescopic network is called " incident eyeshot is telescopic " (Event Horizon Telescope, EHT) , its are effective caliber dimension reachs earthly diameter size.
Those who participate in observation is medium 10 days of explanations say Lu Rusen of researcher of observatory of square scientist, Shanghai, "These telescopic resolution are equivalent to a piece of newspaper that can read The Nansha Islands to go up in Heilongjiang desert river.
Chen Xuelei expresses to cover news, even so the binoculars of high resolution, gaining an influence still is ambiguous. But this is nature, this also means us to need to promote the technology further. This also means us to need to promote the technology further..
The reporter understands, comprising EHT binoculars is respectively: Antarctic binoculars (South Pole Telescope) ; The Martha of A tower card that is located in Chile millimeter wave blast (Atacama Large Millimeter Array, ALMA) ; Experiment of the person that the A tower that is located in Chile blocks Ma Tanlu is telescopic (Atacama Pathfinder Experiment) ; Large millimeter wave of Mexico is telescopic (Large Millimeter Telescope) ; Those who be located in American Arizona city (Submillimeter Telescope) ; Be located in Hawaiian maxwell binoculars (James Clerk Maxwell Telescope, JCMT) ; Be located in Hawaiian inferior millimeter wave is telescopic (Submillimeter Array) ; 30 meters of millimeter wave of the place of astronomy of millimeter wave radio that is located in Spain are telescopic.
JCMT binoculars is located in height above sea level of American Hawaiian state 4092 meters Mauna Kea summit, it is at present the job is in inferior one of the most advanced binoculars of millimeter wave band, it can use research solar system, interstellar dust is amiable body and distant galaxy the scientific question that wait. The SCUBA 2 that JCMT place equips inferior millimeter wave is become resembling array detector is international banner successive chart is become like equipment. As observatory of the East Asia end 2014 (EAO) hold water, china is participated in formally as one of member orgnaizations of EAO take-over the science of JCMT runs government. Since Feburary 2015, this binoculars will move by management of East Asia observatory. Regard EAO as the member, our country will have the partial observation time of JCMT 5 years henceforth.
Chen Xuelei expresses, astronomical division is internationally very strong field, "The problem previously is, oneself device is less, the level of integral science and technology is the strongest country on opposite world, still have difference. We are being caught up with now, but need a course. But need a course..
He expresses, include those who build to be in at present kilometre of square of radio telescope of the biggest integrated aperture blast (Square Kilometre Array, abbreviate is SKA) project inside, china participated in international to cooperate in a lot of astronomical observation and scientific research domain. "There already was FAST now (500 meters of caliber are spherical radio telescope) , we must go up in this foundation, promote oneself ceaselessly, more take an active part in international competition and collaboration. More take an active part in international competition and collaboration..
