J/other/AcApS/16.103 Miyun 232MHz survey: reliability study (Zhang+ 1996)
A reliability study of the Miyun 232 MHz Catalogue
Peng B., Cao A., Nan R.D., Zheng Y.-J., Yan Y.-H., Tian W.-W.,
Zhang X.-Z., Qiu Y.-H., Zhu J., Li X.C.
<Acta Astrophys. Sinica, 16, 103 (1996)>
=1996AcApS..16..103P 1996AcApS..16..103P
ADC_Keywords: Radio sources
Keywords: sky survey - radio source - catalogue - statistics
Abstract:
A meter-wave sky survey of the region north of declination +30deg has
been carried out with the Miyun Synthesis Radio Telescope (MSRT) at
232MHz. The Miyun general catalogue (MGC) contains 26957 radio
sources except those located in the galactic plane, its electronic
version is available now. Completeness and uniformity of the MGC has
been discussed recently (Peng et al, 1995AcApS..15..383P 1995AcApS..15..383P).
In this paper, we provide evidence of reliability of the MGC by
comparing the MSRT data with other published radio catalogues and also
by analyzing the reason why part of the detected sources in the MGC
could not be recorded by previous surveys.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 54 12 Survey regions of main radio catalogues catalogue
table3.dat 28 73 New radio sources stronger than 1Jy at 232MHz
tables.tex 80 161 LaTeX version of the tables
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See also:
VIII/44 : Miyun 232 MHz survey. II. The main list (Zhang+ 1997)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- Cat Catalogue designation (1)
7 A1 --- DE1- End of the declination sign (B1950)
8- 9 I2 deg DE1d Begining of the declination (B1950)
11- 12 I2 arcmin DE1m Begining of the declination (B1950)
14- 15 I2 arcsec DE1s Begining of the declination (B1950)
17 A1 --- DE2- End of the declination sign (B1950)
18- 19 I2 deg DE2d End of the declination (B1950)
21- 22 I2 arcmin DE2m End of the declination (B1950)
24- 25 I2 arcsec DE2s End of the declination (B1950)
27- 28 I2 h RA1h Begining of the right ascension (B1950)
30- 31 I2 arcmin RA1m Begining of the right ascension (B1950)
33- 36 F4.1 sec RA1s ? Begining of the right ascension (B1950)
38- 39 I2 h RA2h End of the right ascension (B1950)
41- 42 I2 arcmin RA2m End of the right ascension (B1950)
44- 47 F4.1 sec RA2s ? End of the right ascension (B1950)
49- 53 I5 --- N ? Total number of sources recorded in
each catalogue
54 A1 --- n_N [*] Note: see Peng et al. 1995AcApS..15..383P 1995AcApS..15..383P
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Note (1): catalogues as follows:
B2 = Second Bologna Survey (Cat. VIII/36)
B3 = Third Bologna Survey (Cat. VIII/37)
4C = 4th Cambridge survey of radio sources (Cat. VIII/4)
6C = 6th Cambridge survey of radio sources (Cat. VIII/18, VIII/21,
VIII/22, VIII/23, VIII/24)
87GB = 87GB Catalog of radio sources (Cat. VIII/14)
G1400 = 1400-MHz Sky Survey (Cat. VIII/6)
Texas = Texas Survey of radio sources at 365MHz (Cat. VIII/42)
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Right ascension (B1950)
4- 5 I2 min RAm Right ascension (B1950)
7- 10 F4.1 s RAs Right ascension (B1950)
12 A1 --- DE- Declination sign (B1950)
13- 14 I2 deg DEd Declination (B1950)
16- 17 I2 arcmin DEm Declination (B1950)
19- 22 F4.1 arcsec DEs Declination (B1950)
24- 28 F5.2 Jy Speak Peak flux density at 232MHz (Jy/beam)
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Table2: Realiability Investigation Results
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Source class Flux range Source members Ratio (%)
--------------- Rreli
Jy Nc Nn
--------------------------------------------------------
SCL2 S≥2 105 95 9.5
SCL1 2. >S≥1 442 379 14.3
SCL06 1. >S≥0.6 883 690 21.9
SCL03 0.6>S≥0.3 2304 1592 30.9
SCL01 0.3>S≥0.12 2318 1528 34.1
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Acknowledgements:
Bo Peng <pb(at)@bao01.bao.ac.cn>
(End) Patricia Bauer [CDS] 13-Jan-1997