Help: Application of Optical Fibre In Astronomy?

  • #1
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I'm doing a presentation in this topic and I find it very hard to look for information on the web. Please, point me to any website or resources that have information about this topic? Thank You~! :confused:
 
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  • #2
Here is a link to the 2 degree field galaxy redshift survey. The largest redshift survey to date with around 220 000 galaxy redshifts with median redshift ~ 0.1 and an average magnitude limit of 19.45.

http://magnum.anu.edu.au/~TDFgg/

The 2df instrument uses ~400 optical fibres to take spectra of galaxies spread over 2 degrees of sky in one pointing.



The 2df instrument is now being decomissioned and is to be replaced by AAOmega, which will have higher sensitivity.
 

1. What is the role of optical fibre in astronomy?

Optical fibre plays a crucial role in astronomy by allowing astronomers to collect and transmit light from distant celestial objects to Earth-based telescopes. This enables scientists to study the properties and behavior of these objects in great detail.

2. How does optical fibre work in astronomy?

Optical fibre works by guiding light through a long, thin strand of glass or plastic. The light enters the fibre at one end and travels through the core of the fibre, reflecting off the walls due to total internal reflection. It then exits at the other end, preserving the integrity of the light signal.

3. What are the advantages of using optical fibre in astronomy?

One major advantage of using optical fibre in astronomy is its ability to collect and transmit light from distant objects with minimal loss of signal. This allows for more accurate and detailed observations. Additionally, optical fibre is lightweight, flexible, and relatively inexpensive compared to other technologies.

4. What are some examples of applications of optical fibre in astronomy?

One example is the use of optical fibre in spectroscopy, where it is used to analyze the light emitted by stars and other celestial objects. Optical fibre is also used in interferometry, where multiple telescopes are linked together using fibres to create a single, more powerful telescope. Fibre optic cables are also used to connect ground-based telescopes to space-based instruments, such as the Hubble Space Telescope.

5. What are the challenges associated with using optical fibre in astronomy?

One of the main challenges is maintaining the quality of the light signal as it travels through the fibre. Any imperfections or disruptions in the fibre can result in loss of signal or distortion of the data. Another challenge is the cost of implementing and maintaining a fibre optic system, as it requires specialized equipment and expertise.

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