Документ взят из кэша поисковой машины. Адрес
оригинального документа
: http://www.sao.ru/cats/doc/MIYUN.html
Дата изменения: Wed Mar 18 12:25:11 2015 Дата индексирования: Sun Apr 10 00:55:01 2016 Кодировка: Поисковые слова: reflection nebula |
Keywords: surveys - catalogs - instrumentation:interferometers - methods:data analysis - methods:observational - methods:statistical Description: A meter-wave survey of the sky region north of declination +30 degree has been carried out with the Miyun Synthesis Radio Telescope (MSRT), Beijing Astronomical Observatory, at 232 MHz. It is a moderately deep survey. The observations were made between January 1985 and December 1993. The covered sky area is divided into 156 fields of view. Basically all adjacent fields are separated by 8 degree angular distance. Fields #54, #56, #115, #116, have no data yet. A catalog of 34462 radio sources is given in Table 2. Table3 shows the information on the 152 fields of view. =================================================================== File Summary: File Name Lrec Records Explanations ------------------------------------------------------------------- Read.Me 80 . This file table2 75 34462 The source-list of the survey table3 34 152 Information on 152 fields of view ------------------------------------------------------------------- byte-by-byte description of file: table2 ------------------------------------------------------------------- bytes format units explanations ------------------------------------------------------------------- 4-10 a10 - Source names 16-17 i2 hour R.A. of the source(h) 19-20 i2 min. R.A. of the source(m) 22-25 f4.1 sec. R.A. of the source(s) 28-29 i2 deg. Dec. of the source(deg.) 31-32 i2 arcmin Dec. of the source(arcmin) 34-37 f4.1 arcsec Dec. of the source(arcsec) 40-47 f8.2 Jy/Beam Peak flux density 50-57 f8.2 Jy/Beam Integrated flux density 58-63 f6.2 - Factor for correcting the primary beam 64-70 f7.1 - Local S/N 73-75 a3 - Number of the field of view ------------------------------------------------------------------- Notes to table 2: Local S/N is calculated in the way of maximum(peak flux, integral flux)/ (local noise). the epochs of R.A. and Dec. are 1950.0 byte-by-byte description of file: table3 ------------------------------------------------------------------- bytes format units explanations ------------------------------------------------------------------- 1-3 a3 - Number of the field of view 4-12 3i3 h,m,s R.A. of the field center(h/m/s) 13-16 i4 degree Dec. of the field center 17-22 a6 - Observing date(month) 23-25 i3 - Observing date(day) 26-30 i5 - Observing date(year) 31-34 i4 mJy/Beam Background fluctuation ------------------------------------------------------------------- Note to the table3: the epochs of R.A. and Dec. in the table3 are observing dates.