The Vatly Radio Telescope: Performance Study

Nguyen Thi Phuong; Pham Ngoc Diep; Darriulat Pierre; Pham Tuyet Nhung; Pham Tuan Anh; Pham Ngoc Dong; Do Thi Hoai; Nguyen Thi Thao

doi:10.15625/0868-3166/24/3/3981

The Vatly Radio Telescope: Performance Study

Nguyen Thi Phuong, Pham Ngoc Diep, Darriulat Pierre, Pham Tuyet Nhung, Pham Tuan Anh, Pham Ngoc Dong, Do Thi Hoai, Nguyen Thi Thao

Author affiliations

Authors

Nguyen Thi Phuong Institute for Nuclear Science and Technology
Pham Ngoc Diep Institute for Nuclear Science and Technology
Darriulat Pierre Institute for Nuclear Science and Technology
Pham Tuyet Nhung Institute for Nuclear Science and Technology
Pham Tuan Anh Institute for Nuclear Science and Technology
Pham Ngoc Dong Institute for Nuclear Science and Technology
Do Thi Hoai Institute for Nuclear Science and Technology
Nguyen Thi Thao Institute for Nuclear Science and Technology

DOI:

https://doi.org/10.15625/0868-3166/24/3/3981

Keywords:

Radio Telescope, 21 cm HI line, sensitivity

Abstract

A detailed account of the performance of the VATLY radio telescope, operated in HaNoi on and near the 21 cm HI line, is given. Drift scans across the Sun are used to measure the dependence of the gain on frequency and power, revealing small nonlinearities at or below the percent level. Interferences associated with the electromagnetic pollution in the Ha Noi environment are described. The sensitivity of the instrument is discussed and demonstrated with the detection of the Crab. The reliability of the measurement of the spectral flux density is illustrated by comparing solar flux data measured in Ha Noi and at the Australian observatory of Learmonth.

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References

N.V. Hiep et al., The VATLY radio telescope, Comm. Phys.Vietnam, Vol 22, No 4 (2012), 365. N.V. Hiep, Observation of the 21 cm sky using the VATLY radio telescope, Master thesis, presented at Vietnam Institute of Physics, 2012. DOI: https://doi.org/10.15625/0868-3166/22/4/435

N.V. Hiep et al., Mapping atomic hydrogen in the disk of the Milky Way, Comm. Phys. Vietnam, Vol 23, No 2 (2013), 107-119. DOI: https://doi.org/10.15625/0868-3166/23/2/2605

N.V. Hiep et al., Radio Observation of Solar-Activity-Related mHz Oscillations, Sol. Phys. 289, 3 (2014), 939-950. DOI: https://doi.org/10.1007/s11207-013-0356-y

N.T. Phuong et al., Multipath generated correlations between apparent solar oscil-

lations observed by two distant radio telescopes, submitted for publication in Sol. Phys (2014).

P.N. Diep et al., Correlated multipath eects between distant radio telescopes, submitted for publication in Publications of the Astronomical Society of Australia (2014).

A. Rogers, http://www.haystack.mit.edu/edu/undergrad/srt/oldsrt.html.

H. Weaver and D.R.W. Williams, The Berkeley Low Latitude Survey of Neutral Hydrogen, Astron. & Astrophys. Suppl., 17 (1974) 1-249.

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Published

21-08-2014

How to Cite

[1]

N. T. Phuong, “The Vatly Radio Telescope: Performance Study”, Comm. Phys., vol. 24, no. 3, p. 257, Aug. 2014.

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Vol. 24 No. 3 (2014)

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Papers

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