3分pk10-(中国)360百科

 
Feature: Listening to cosmos in southern U.S. desert
                 Source: Xinhua | 2018-09-09 07:22:37 | Editor: huaxia

The Karl G. Jansky Very Large Array is seen on a high desert plateau, surrounded by mountains, in New Mexico, the United States, on Sept. 3. (Xinhua/ Richard Lakin)

by Richard Lakin

ALBUQUERQUE, the United States, Sept. 8 (Xinhua) -- Laying on a remote desert area in southern United States, a radio astronomers observatory attracts researchers and tourists all over the world. Being one of the busiest telescope on earth, it serves as a facility where many important discoveries were made.

The Karl G. Jansky Very Large Array (the VLA) is a radio astronomy observatory located on an isolated high desert plateau in western New Mexico state of the United States. Situated on a dry lakebed on the plains of San Agustin at 2,124 meters elevation, it is encircled by mountains, making it an ideal spot to avoid the normal wireless interference from cities. It is extremely dry there, and the lack of humidity in the air also makes for a clearer radio signal.

The VLA was named to honor Karl Guthe Jansky, who is considered to be the U.S. father of radio astronomy. Jansky was a physicist and radio engineer employed by Bell Laboratories to determine the source of interference to their overseas wireless communications. In 1933 he surprised the world's astronomers by announcing that one of the sources was extraterrestrial -- radio waves emitting from the gaseous center of the Milky Way galaxy. In the decades since, astronomers and engineers have advanced the science of translating these radio waves into observable images.

Dr. Chris Carilli, the Chief Scientist for the National Radio Astronomy Observatory explains a telescope image of explosive jets formed by matter being pulled into a black hole, in New Mexico, the United States, on Sept. 3. (Xinhua/Richard Lakin)

When the VLA first comes into view on the drive across the desert, the massive size of the array is very awe-inspiring. There are 27 radio dishes, each one 25 meters across and weighing 209 tons. The data from each dish is combined via a supercomputer, creating a singular radio telescope observation.

The dishes are arranged in a Y-shaped pattern, and are moved into different configurations on a network of railroad tracks to facilitate specific observation projects. Each of the 3 legs of the configuration contains 9 dishes and can be moved from two-thirds of a mile to 23 miles in length. The configuration changes about every 3 to 4 months to accommodate the research schedule.

Featured in the 1997 movie "Contact," where the facility received a radio transmission from an extraterrestrial source, the VLA became a popular tourist destination, with the number of visitors doubling after the movie premiered.

Despite its reputation in fictional pop culture, however, the VLA has made many real-world discoveries. More than 200 Ph.D. degrees have been awarded because of research done there. The facility makes observations of many types of astronomical objects; quasars, pulsars, supernova remnants, suns and planets, and black holes.

The Karl G. Jansky Very Large Array is seen on a high desert plateau, surrounded by mountains, in New Mexico, the United States, on Sept. 3.(Xinhua/Richard Lakin)

Dr. Chris Carilli, the Chief Scientist for the National Radio Astronomy Observatory told Xinhua: "The Very Large Array is extraordinarily powerful, the most powerful radio telescope in the world, and we perform a tremendously versatile range of science. We study things, everything from the ionosphere, our own earth's ionosphere, right out to the very first galaxies in the universe and everything in between."

In 1991, the VLA discovered ice on the planet Mercury. In 2011, astronomers found a black hole a million times bigger than our sun, 30 light years from our planet. The VLA also confirmed Einstein's theory that massive objects could create a gravitational lens that bends light.

In 2011, an upgrade project resulted in the VLA expanding its technical capacities by factors of as much as 8,000.

"Some of the high-profile work that's come out of the upgraded Very Large Array, include direct imaging of the formation of planets outside of our own solar system. Spectacular work, showing the birth of planetary systems very much like our own solar system," Carilli said.

Due to the distance from Earth and the time that radio emissions take to reach our planet, it is possible to study the primordial state of developing galaxies.

"If you move to the edge of the universe, the Very Large Array is a major component in telescopes that study the very first galaxies of the universe, galaxies that are forming within a few hundred million years of the Big Bang, meaning 5 percent the age of the universe, so right back to the beginnings of time and the VLA is imaging the cold gas out of which the first stars form," the scientist explained.

Modern astronomy techniques use multiple observation facilities to analyze the cosmos with a variety of spectrums and methods, not just a single telescope. Dave Finley, the public information officer for the National Radio Astronomy Observatory said that astronomers want to use every telescope they can to study a particular phenomenon since each telescope gives a difference piece of the overall picture.

"We routinely operate by looking at the same thing Hubble is looking at or the Chandra X-Ray Observatory or the Spitzer Infrared Observatory or other ground-based optical observatories and we will be looking at the same thing that these other observatories will be looking at. Each one of us providing a piece of the picture that lets astronomers understand the whole of what is going on," he said.

The VLA invites scientists from all over world to submit proposals for radio telescope observation projects. More than 3,000 researchers from around the world have used the VLA for over 11,000 different astronomy projects.

It is one of the busiest telescope facility on earth. As Carilli explains: "We are a national laboratory with open access to astronomers from around the world. If you have a good idea and you want to use our large telescopes to perform astronomical research, then you will submit proposals and they will be reviewed and ranked accordingly. If they're good you get observing time."

Back to Top Close
Xinhuanet

Feature: Listening to cosmos in southern U.S. desert

Source: Xinhua 2018-09-09 07:22:37

The Karl G. Jansky Very Large Array is seen on a high desert plateau, surrounded by mountains, in New Mexico, the United States, on Sept. 3. (Xinhua/ Richard Lakin)

by Richard Lakin

ALBUQUERQUE, the United States, Sept. 8 (Xinhua) -- Laying on a remote desert area in southern United States, a radio astronomers observatory attracts researchers and tourists all over the world. Being one of the busiest telescope on earth, it serves as a facility where many important discoveries were made.

The Karl G. Jansky Very Large Array (the VLA) is a radio astronomy observatory located on an isolated high desert plateau in western New Mexico state of the United States. Situated on a dry lakebed on the plains of San Agustin at 2,124 meters elevation, it is encircled by mountains, making it an ideal spot to avoid the normal wireless interference from cities. It is extremely dry there, and the lack of humidity in the air also makes for a clearer radio signal.

The VLA was named to honor Karl Guthe Jansky, who is considered to be the U.S. father of radio astronomy. Jansky was a physicist and radio engineer employed by Bell Laboratories to determine the source of interference to their overseas wireless communications. In 1933 he surprised the world's astronomers by announcing that one of the sources was extraterrestrial -- radio waves emitting from the gaseous center of the Milky Way galaxy. In the decades since, astronomers and engineers have advanced the science of translating these radio waves into observable images.

Dr. Chris Carilli, the Chief Scientist for the National Radio Astronomy Observatory explains a telescope image of explosive jets formed by matter being pulled into a black hole, in New Mexico, the United States, on Sept. 3. (Xinhua/Richard Lakin)

When the VLA first comes into view on the drive across the desert, the massive size of the array is very awe-inspiring. There are 27 radio dishes, each one 25 meters across and weighing 209 tons. The data from each dish is combined via a supercomputer, creating a singular radio telescope observation.

The dishes are arranged in a Y-shaped pattern, and are moved into different configurations on a network of railroad tracks to facilitate specific observation projects. Each of the 3 legs of the configuration contains 9 dishes and can be moved from two-thirds of a mile to 23 miles in length. The configuration changes about every 3 to 4 months to accommodate the research schedule.

Featured in the 1997 movie "Contact," where the facility received a radio transmission from an extraterrestrial source, the VLA became a popular tourist destination, with the number of visitors doubling after the movie premiered.

Despite its reputation in fictional pop culture, however, the VLA has made many real-world discoveries. More than 200 Ph.D. degrees have been awarded because of research done there. The facility makes observations of many types of astronomical objects; quasars, pulsars, supernova remnants, suns and planets, and black holes.

The Karl G. Jansky Very Large Array is seen on a high desert plateau, surrounded by mountains, in New Mexico, the United States, on Sept. 3.(Xinhua/Richard Lakin)

Dr. Chris Carilli, the Chief Scientist for the National Radio Astronomy Observatory told Xinhua: "The Very Large Array is extraordinarily powerful, the most powerful radio telescope in the world, and we perform a tremendously versatile range of science. We study things, everything from the ionosphere, our own earth's ionosphere, right out to the very first galaxies in the universe and everything in between."

In 1991, the VLA discovered ice on the planet Mercury. In 2011, astronomers found a black hole a million times bigger than our sun, 30 light years from our planet. The VLA also confirmed Einstein's theory that massive objects could create a gravitational lens that bends light.

In 2011, an upgrade project resulted in the VLA expanding its technical capacities by factors of as much as 8,000.

"Some of the high-profile work that's come out of the upgraded Very Large Array, include direct imaging of the formation of planets outside of our own solar system. Spectacular work, showing the birth of planetary systems very much like our own solar system," Carilli said.

Due to the distance from Earth and the time that radio emissions take to reach our planet, it is possible to study the primordial state of developing galaxies.

"If you move to the edge of the universe, the Very Large Array is a major component in telescopes that study the very first galaxies of the universe, galaxies that are forming within a few hundred million years of the Big Bang, meaning 5 percent the age of the universe, so right back to the beginnings of time and the VLA is imaging the cold gas out of which the first stars form," the scientist explained.

Modern astronomy techniques use multiple observation facilities to analyze the cosmos with a variety of spectrums and methods, not just a single telescope. Dave Finley, the public information officer for the National Radio Astronomy Observatory said that astronomers want to use every telescope they can to study a particular phenomenon since each telescope gives a difference piece of the overall picture.

"We routinely operate by looking at the same thing Hubble is looking at or the Chandra X-Ray Observatory or the Spitzer Infrared Observatory or other ground-based optical observatories and we will be looking at the same thing that these other observatories will be looking at. Each one of us providing a piece of the picture that lets astronomers understand the whole of what is going on," he said.

The VLA invites scientists from all over world to submit proposals for radio telescope observation projects. More than 3,000 researchers from around the world have used the VLA for over 11,000 different astronomy projects.

It is one of the busiest telescope facility on earth. As Carilli explains: "We are a national laboratory with open access to astronomers from around the world. If you have a good idea and you want to use our large telescopes to perform astronomical research, then you will submit proposals and they will be reviewed and ranked accordingly. If they're good you get observing time."

010020070750000000000000011100001374551281
快3彩票购彩平台 大发彩票welcome 彩神 5分pk10 乐彩彩票 快三网站 大众购彩 一分11选5 极速快3 五分快乐十分 大发购彩中心 乐发lll 大发welcome 大发系列平台 东方彩票 五五世纪平台 凤凰快3 乐发IV彩票购彩中心 彩88 凤凰彩票官方网站 5分pk10 五五世纪 山西快3 55世纪购彩平台 乐发lx Welcome彩神 乐发3彩票APP 购彩中心 55世纪-购彩大厅 大发云app 星辰阁彩票购彩大厅 彩神v 大发彩票购彩平台 5分快3 快三彩票购彩平台 大發3分快3 快3平台 乐彩彩票 大发彩票快乐8 乐发IV welcome手机购彩 大众购彩 天天中平台 快盈IV500 幸运快三 买大小平台赚钱 1分快3 彩神彩票购彩平台 大发pk10 彩信平台 三分11选5 快3购彩中心 乐发ll下载app 彩神Welcome登录入口 乐发 采彡神争霸 快盈iv 神彩v8 55世纪官网 大发彩票www官方 凤凰彩票 10分快三 快三彩票官方网站 五分飞艇 乐发彩票官方网站 乐发Vll 大发快乐8官网 乐发app 大发彩票welcome 幸运5分彩 百姓快3 百度彩票 彩神网 大发彩票 3分快三 快3彩票 一分11选5 极速快3 五分快乐十分 大发购彩中心 乐发lll 大发welcome 大发系列平台 东方彩票 五五世纪平台 凤凰快3 乐发IV彩票购彩中心 彩88 凤凰彩票官方网站 5分pk10 55世纪 重庆快3 55世纪官方网站 乐发VI 彩神 乐发Ⅲ welcome大发彩票 大发购彩大厅welcome 百姓快三 名发app PK彩票 大发彩票购彩平台 5分快3 快三彩票购彩平台 大發3分快3 快3平台 乐彩彩票 大发彩票快乐8 乐发IV welcome手机购彩 五分快三 10元投资彩票赚钱平台 鼎发彩票 彩神iv争霸 网信快3 一分快3 凤凰彩票app下载 3分pk10 乐彩 湖南快3 快3购彩平台 乐发lv 彩神Welcome入口 乐发1 彩神8 百姓彩票welcome 一分三可空降可约app下载 彩神ix 彩票宝 大发彩票app下载 10分快3 快3彩神官方网站 四川快3 乐发彩票购彩平台 乐发彩票ll 大发快乐8官方网站 乐发app下载 welcome凤凰彩票 万乐彩 在线快3 百度彩票 彩神网 大发彩票 3分快三 快3彩票 一分11选5 极速快3 五分快乐十分 大发购彩中心 乐发lll 彩神welcome 乐发网投平台 网信彩票 优彩彩票 彩神8v 网信快三 乐乐彩 凤凰彩票购彩平台 10分pk10 55世纪 重庆快3 55世纪官方网站 乐发VI 彩神 乐发Ⅲ welcome大发彩票 大发购彩大厅welcome 百姓快三 名发app PK彩票 大发彩票购彩平台 5分快3 快三彩票购彩平台 大發3分快3 快3平台 分分快3 大发快乐8 乐发ll welcome购彩中心 五分快三 10元投资彩票赚钱平台 鼎发彩票 彩神iv争霸 网信快3 一分快3 凤凰彩票app下载 3分pk10 乐彩 湖南快3 55世纪购彩平台 乐发lx Welcome彩神 乐发3彩票APP 购彩中心 55世纪-购彩大厅 大发云app 星辰阁彩票购彩大厅 彩神v 大发彩票官方网站 五分快3 快3彩票购彩平台 三分PK10 乐发彩票 乐发国际 大发快乐8购彩平台 乐发III 手机购彩 一分快3平台 彩神v8 快三网站 天天彩票 快三平台 1分快三 彩神彩票官方网站 大发三分快3 极速快三 三分PC蛋蛋 彩神购彩中心 乐发lll下载 彩神welcome 乐发网投平台 网信彩票 优彩彩票 彩神8v 网信快三 乐乐彩 凤凰彩票购彩平台 10分pk10 快三彩票官方网站 五分飞艇 乐发彩票官方网站 乐发Vll 大发快乐8官网 乐发app 大发彩票welcome 幸运5分彩 百姓快3 vip彩票购彩大厅 直播快三 彩神彩票 3分快3 快三彩票 大發5分快3 极速快3购彩平台 分分快3 大发快乐8 乐发ll welcome购彩中心 五分快三 10元投资彩票赚钱平台 鼎发彩票 彩神iv争霸 网信快3 一分快3 凤凰彩票app下载 3分pk10 乐彩 湖南快3 快3购彩平台 乐发lv 彩神Welcome入口 乐发3彩票APP 购彩中心 55世纪-购彩大厅 大发云app 星辰阁彩票购彩大厅 彩神v 大发彩票购彩平台 5分快3 快三彩票购彩平台 大發3分快3 快3平台 乐彩彩票 大发彩票快乐8 乐发IV welcome手机购彩 大众购彩 天天中平台 快盈IV500 幸运快三 买大小平台赚钱 1分快3 彩神彩票购彩平台 大发pk10 彩信平台 三分11选5 快3购彩中心 乐发ll下载app 彩神Welcome登录入口 乐发 采彡神争霸 快盈iv 神彩v8 55世纪官网 大发彩票www官方 凤凰彩票 10分快三 快三彩票官方网站 五分飞艇 乐发彩票官方网站 乐发Vll 大发快乐8官网 乐发app 大发彩票welcome 幸运5分彩 百姓快3 百度彩票 彩神网 大发彩票 3分快三 快3彩票 一分11选5 极速快3 五分快乐十分 大发购彩中心 乐发lll 大发welcome 大发系列平台 东方彩票 五五世纪平台 凤凰快3 乐发IV彩票购彩中心 彩88 凤凰彩票官方网站 5分pk10 五五世纪 山西快3 55世纪购彩平台 乐发lx Welcome彩神 乐发3彩票APP 购彩中心 55世纪-购彩大厅 大发云app 星辰阁彩票购彩大厅 彩神v 大发彩票官方网站 五分快3 快3彩票购彩平台 三分PK10 乐发彩票 乐发国际 大发快乐8购彩平台 乐发III 手机购彩 一分快3平台 10元投资彩票赚钱平台 鼎发彩票 彩神iv争霸 网信快3 一分快3 凤凰彩票app下载 3分pk10 乐彩 湖南快3 快3购彩平台 乐发lv 彩神Welcome入口 乐发1 彩神8 百姓彩票welcome 一分三可空降可约app下载 彩神ix 彩票宝 大发彩票app下载 10分快3 快3彩神官方网站 四川快3 乐发彩票购彩平台 乐发彩票ll 大发快乐8官方网站 乐发app下载 welcome凤凰彩票 万乐彩 在线快3 百度彩票 彩神网 大发彩票 3分快三 快3彩票 一分11选5 极速快3 五分快乐十分 大发购彩中心 乐发lll 彩神welcome 乐发网投平台 网信彩票 优彩彩票 彩神8v 网信快三 乐乐彩 凤凰彩票购彩平台 10分pk10 55世纪 重庆快3 55世纪官方网站 乐发VI 彩神 乐发Ⅲ welcome大发彩票 大发购彩大厅welcome 百姓快三 名发app PK彩票 大发彩票购彩平台 5分快3 快三彩票购彩平台 大發3分快3 快3平台 乐彩彩票 大发彩票快乐8 乐发IV welcome手机购彩 大众购彩 天天中平台 快盈IV500 幸运快三 买大小平台赚钱 1分快3 彩神彩票购彩平台 大发pk10 彩信平台 三分11选5 快3购彩平台 乐发lv 彩神Welcome入口 乐发1 彩神8 百姓彩票welcome 一分三可空降可约app下载 星辰阁彩票购彩大厅 彩神v 大发彩票官方网站 五分快3 快3彩票购彩平台 三分PK10 乐发彩票 乐发国际 大发快乐8购彩平台 乐发III 手机购彩 一分快3平台 彩神v8 快三网站 天天彩票 快三平台 1分快三 彩神彩票官方网站 大发三分快3 极速快三 三分PC蛋蛋 彩神购彩中心 乐发lll下载 彩神welcome 乐发网投平台 网信彩票