Receiver gain calibration for radio observations at the Waseda Nasu Pulsar Observatory

K. Niinuma; M. Kuniyoshi; N. Matsumura; K. Takefuji; S. Kida; A. Takeuchi; R. Nakamura; S. Suzuki; H. Ichikwa; K. Asuma; T. Daishido

doi:10.1086/511388

Receiver gain calibration for radio observations at the Waseda Nasu Pulsar Observatory

K. Niinuma, M. Kuniyoshi, N. Matsumura, K. Takefuji, S. Kida, A. Takeuchi, R. Nakamura, S. Suzuki, H. Ichikwa, K. Asuma, T. Daishido

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

We have started programs at the Waseda Nasu Pulsar Observatory to identify EGRET γ-ray sources and to search for radio transients. The observed frequency was 1.4 ± 0.01 GHz, and eight-element spherical dish antennas were used as four pairs of interferometers, with each element 20 m in diameter. The observable region was ±5° from zenith, covering a region of sky 32° ≤ δ ≤ 42° in declination. For accurate flux measurement, we developed a receiver gain calibration system using Johnson-Nyquist noise; the system was compact, inexpensive, and easily maintained. We describe the system and recent results of radio source monitoring.

Original language	English
Pages (from-to)	112-121
Number of pages	10
Journal	Publications of the Astronomical Society of the Pacific
Volume	119
Issue number	851
DOIs	https://doi.org/10.1086/511388
Publication status	Published - 2007 Jan

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1086/511388

Fingerprint Dive into the research topics of 'Receiver gain calibration for radio observations at the Waseda Nasu Pulsar Observatory'. Together they form a unique fingerprint.

Cite this

Receiver gain calibration for radio observations at the Waseda Nasu Pulsar Observatory. / Niinuma, K.; Kuniyoshi, M.; Matsumura, N.; Takefuji, K.; Kida, S.; Takeuchi, A.; Nakamura, R.; Suzuki, S.; Ichikwa, H.; Asuma, K.; Daishido, T.

In: Publications of the Astronomical Society of the Pacific, Vol. 119, No. 851, 01.2007, p. 112-121.

Research output: Contribution to journal › Article › peer-review

@article{39db1a2c467444cea794af19e35db7ad,

title = "Receiver gain calibration for radio observations at the Waseda Nasu Pulsar Observatory",

abstract = "We have started programs at the Waseda Nasu Pulsar Observatory to identify EGRET γ-ray sources and to search for radio transients. The observed frequency was 1.4 ± 0.01 GHz, and eight-element spherical dish antennas were used as four pairs of interferometers, with each element 20 m in diameter. The observable region was ±5° from zenith, covering a region of sky 32° ≤ δ ≤ 42° in declination. For accurate flux measurement, we developed a receiver gain calibration system using Johnson-Nyquist noise; the system was compact, inexpensive, and easily maintained. We describe the system and recent results of radio source monitoring.",

author = "K. Niinuma and M. Kuniyoshi and N. Matsumura and K. Takefuji and S. Kida and A. Takeuchi and R. Nakamura and S. Suzuki and H. Ichikwa and K. Asuma and T. Daishido",

year = "2007",

month = jan,

doi = "10.1086/511388",

language = "English",

volume = "119",

pages = "112--121",

journal = "Publications of the Astronomical Society of the Pacific",

issn = "0004-6280",

publisher = "University of Chicago",

number = "851",

}

TY - JOUR

T1 - Receiver gain calibration for radio observations at the Waseda Nasu Pulsar Observatory

AU - Niinuma, K.

AU - Kuniyoshi, M.

AU - Matsumura, N.

AU - Takefuji, K.

AU - Kida, S.

AU - Takeuchi, A.

AU - Nakamura, R.

AU - Suzuki, S.

AU - Ichikwa, H.

AU - Asuma, K.

AU - Daishido, T.

PY - 2007/1

Y1 - 2007/1

N2 - We have started programs at the Waseda Nasu Pulsar Observatory to identify EGRET γ-ray sources and to search for radio transients. The observed frequency was 1.4 ± 0.01 GHz, and eight-element spherical dish antennas were used as four pairs of interferometers, with each element 20 m in diameter. The observable region was ±5° from zenith, covering a region of sky 32° ≤ δ ≤ 42° in declination. For accurate flux measurement, we developed a receiver gain calibration system using Johnson-Nyquist noise; the system was compact, inexpensive, and easily maintained. We describe the system and recent results of radio source monitoring.

AB - We have started programs at the Waseda Nasu Pulsar Observatory to identify EGRET γ-ray sources and to search for radio transients. The observed frequency was 1.4 ± 0.01 GHz, and eight-element spherical dish antennas were used as four pairs of interferometers, with each element 20 m in diameter. The observable region was ±5° from zenith, covering a region of sky 32° ≤ δ ≤ 42° in declination. For accurate flux measurement, we developed a receiver gain calibration system using Johnson-Nyquist noise; the system was compact, inexpensive, and easily maintained. We describe the system and recent results of radio source monitoring.

UR - http://www.scopus.com/inward/record.url?scp=33947230783&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33947230783&partnerID=8YFLogxK

U2 - 10.1086/511388

DO - 10.1086/511388

M3 - Article

AN - SCOPUS:33947230783

VL - 119

SP - 112

EP - 121

JO - Publications of the Astronomical Society of the Pacific

JF - Publications of the Astronomical Society of the Pacific

SN - 0004-6280

IS - 851

ER -