FAST: Huge 500-Meter Radio Telescope from China

फ्रेवुअरी 3, 2009 at 12:01 बिहान 1 comment

 radio-telescope

Official ground-breaking ceremonies took place for a gigantic new 500 meter diameter radio telescope in China which will allow astronomers to detect galaxies and pulsars at unprecedented distances. The $102 million facility, known as the Five-hundred-meter Aperture Spherical Telescope (FAST), will have a collecting area more than twice as big as the 305 meter diameter radio telescope at Arecibo Observatory in Puerto Rico, which has been the world’s largest since it opened in 1964. Not only that, the new telescope will also have the ability to change its shape and move the position its focus.


Like Arecibo, the new telescope will sit in a natural depression that already is close to the shape of the collecting surface, simplifying the support structure and shielding the telescope from stray human-generated radio waves. The location is quite remote, about 170 km by road from the Guizhou Province’s provincial capital Guiyang, making it unusually radio-quiet, says Nan Rendong, FAST chief scientist and a researcher from the National Astronomical Observatories at the Chinese Academy of Sciences.

The site’s potential for long, uninterrupted observations — coupled with the telescope’s huge size, which will give it twice the sensitivity of Arecibo — means that researchers there will be able to detect objects like weak, fast-period pulsars that are too faint to be measured accurately by smaller instruments.

The FAST science impact on astronomy will be extraordinary,” Nan said, adding that although the telescope is located in China, once it is completed in 2014 it will be open to astronomers from around the world.

 A system of motors attached to its 4600 panels will allow astronomers to change its shape from a sphere to a paraboloid, making it easier to move the position of the telescope’s focus. This will allow the south-pointing telescope to cover a broad swathe of the sky — up to 40 degrees from its zenith, compared to the 20-degree-wide strip covered by Arecibo.

At first, however, the telescope will only be sensitive to low-frequency radio waves, less than 3 GHz. Arecibo’s bandwidth, by contrast, stretches up to 10 GHz.

A planned second phase of construction will extend FAST’s range to 5 GHz, but a date for the upgrade has not yet been set.

Courtesy: Physicsworld.com

About these ads

Entry filed under: अन्तरिक्ष बिज्ञान, Electronics & gadgets, science, technology. Tags: .

Count cash : Different people different way!! Ehou maki on Setsubun no hi

१ टिप्पणी Add your own

  • 1. Joe Jackson  |  फ्रेवुअरी 5, 2009 मा 1:10 बिहान

    What a great advancement. Can not wait to see what it does.

जवाफ लेख्नुहोस्

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Trackback this post  |  Subscribe to the comments via RSS Feed


नेपालको समय र तापमान

छिमेकिको दैलोमा चिहाउने कि ?

RSS नेपाल प्लस

  • मिचिएको भूगाग आफ्नो बनाउन सिमा नक्शामा हस्ताक्षर गराउने भारतीय दाउ
    आगामी शुक्रबारदेखि भारतीय विदेशमन्त्री सुष्मा स्वराजको नेपाल भ्रमण तय भएको छ । यो भ्रमणमा उनले बेला कर्णाली जलविद्युत आयोजनाको उर्जा विकाससम्बन्धी सम्झौता गर्ने तयारी भैरहेको छ । उनको भ्रमण अघि नेपाल भारत उर्जा सहयोगसम्बन्धी भारतीय प्रस्तावबारे तिब्र विवाद देखिएपनि भारतले गर्न चाहेको अर्को खतरनाक खेलका बारेमा भने धेरैको ध्यान पुग्न सकेको देखिन्न । त्यो हो, [ […]
    admin

RSS अनलाइन खसखस

  • हरिबंशको किताब चिना हराएको मान्छे
    हरिबंशको किताब चिना हराएको मान्छे अब संसारभरी पढ्न पाइने भएको छ !अर्को जन्ममा म देवता हुन्छु अर्को जन्ममा म देवता हुन्छु, देवताहरूलाई मान्छे बनाउँछु अर्को जन्ममा म देवता हुन्छु, देवताहरूलाई मान्छे बनाउँछु तिमीहरुको चिना म आँफै लेख्छु, भएजति दशा तिमीहरूलाई खनाउछु सानो छँदै टुहुरो बनाउँछु, जन्मस्थलबाट उठीबास लगाउँछु मेरो मन्दिर घुम्न लगाउँछु , भजन कीर्तन गर्न […]
    noreply@blogger.com (RB)

RSS हाम्रो ब्लग

  • An error has occurred; the feed is probably down. Try again later.

RSS The road to Nowhere goes everywhere….

  • सजाय
    सरकारले बिजुली, स्कूल, लीक बनाएनजनतालाई यो देशको मालिक बनाएनहार्नु र झर्नुको पनि सीमा हुन्छ नि यार!नियतिले जीतलाई हाम्रो नजिक बनाएनजुन अनुहार देखेपनि वाक्क-दिक्क लाग्छयार! भगवानले यौटै नेता ठिक बनाएनयै तमाशा देखाएर सजाय दिनुथियो शायदकुनै हुरीले पनि मलाई शालिक बनाएन […]
    Basanta

RSS मेरो बिचार र अभिव्यक्तिको साझा चौतारी

  • यात्रा लुम्बिनीको !
    म धेरै पटक पुगेको, तर जत्ति पटक पुगे पनि मलाई फेरि-फेरि जान मनलाग्ने नेपालको कुनै ठाउँ छ भने त्यो लुम्बिनी हो । सुरूमा भगवान बुद्धको जन्मस्थल अर्थात मायादेवी मन्दिर नै त्यस क्षेत्रको मुख्य आकर्षण हुन्थ्यो भने हाल भने करिब ६ किलोमिटर लम्बाइ र २ किलोमिटर चौडाइको विशाल क्षेत्रलाई छुट्याएर त्यहाँ विभिन्न देशले आ-आफ्नै शैलीमा मन्दिर, चैत्य आदि निर्माण गरेपछि लुम् […]
    Dilip Acharya

मेरो ढुकुटी

अनलाईन कती जना ?

who's online

यो साइट १४ अप्रिल २००७ देखी

Web Page Counter
Free Web Counters

औ पटक हेरी सकिएको छ ।

Calander

फ्रेवुअरी 2009
सो मं बु बि शु
« Jan   Mar »
 1
2345678
9101112131415
16171819202122
232425262728  

Follow

Get every new post delivered to your Inbox.

Join 179 other followers