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J/A+AS/106/29 Flat-spectrum radio sources at 327 MHz (Ghosh+ 1994)
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Three-year monitoring of a sample of flat-spectrum radio sources at 327 MHz.
Ghosh T., Gopal-Krishna, Rao A.P.
<Astron. Astrophys. Suppl. Ser. 106, 29 (1994)>
=1994A&AS..106...29G
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ADC_Keywords: Radio sources; Active gal. nuclei;
Keywords: active galactic nuclei - radio sources - low frequency variability
Abstract:
Results of a 3-year monitoring programme at 327 MHz with the Ooty Synthesis
Radio Telescope are presented. The majority of the sample consists of BL
Lac objects, high-optical polarization quasars (HPQ) and low-optical
polarization quasars (LPQ). In addition, a few known variable sources,
GHz-peaked spectrum sources and compact doubles were also added. Including
an additional set of 36 control and calibrator sources, a total of 82
sources were observed at roughly 3-month intervals for about 3 years. We
find 19 variable and 6 possibly-variable sources. However, the observed
by their optical properties.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1 262 46 Flux-density measurements for the
compact-source sample
table2 263 36 Flux-density measurements for the control
and calibrator sample
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Byte-by-byte Description of file: table1 table2
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Bytes Format Units Label Explanations
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1- 8 A8 --- 3C Standard convention denomination (IAU/3C etc.)
10- 13 A4 --- Class Source classification (see text.)
15- 23 A9 --- Name Other name
28 A1 --- l_GAMMA limit flag for GAMMA
29- 32 F4.1 --- GAMMA Corrected variability index (see text)
35- 38 F4.1 --- Stat. Statistical significance of the variation
(see text)
41- 42 A2 --- com. comment (only in table1)
44- 51 A8 "DD/MM/YY" Obs1 Epoch of the flux density measurement
53- 59 F7.1 mJy F327MHz1 Flux density at 327-MHz
61- 66 F6.1 mJy e_F327MHz1 rms uncertainty on F327MHz1
69- 76 A8 "DD/MM/YY" Obs2 Epoch of the flux density measurement
78- 84 F7.1 mJy F327MHz2 Flux density at 327-MHz2
86- 91 F6.1 mJy e_F327MHz2 rms uncertainty on F327MHz2
93-100 A8 "DD/MM/YY" Obs3 Epoch of the flux density measurement
102-108 F7.1 mJy F327MHz3 []? Flux density at 327-MHz3
110-115 F6.1 mJy e_F327MHz3 []? rms uncertainty on F327MHz3
118-125 A8 "DD/MM/YY" Obs4 Epoch of the flux density measurement
127-133 F7.1 mJy F327MHz4 []? Flux density at 327-MHz4
135-140 F6.1 mJy e_F327MHz4 []? rms uncertainty on F327MHz4
142-149 A8 "DD/MM/YY" Obs5 Epoch of the flux density measurement
151-157 F7.1 mJy F327MHz5 []? Flux density at 327-MHz5
159-164 F6.1 mJy e_F327MHz5 []? rms uncertainty on F327MHz5
167-174 A8 "DD/MM/YY" Obs6 Epoch of the flux density measurement
176-182 F7.1 mJy F327MHz6 []? Flux density at 327-MHz6
184-189 F6.1 mJy e_F327MHz6 []? rms uncertainty on F327MHz6
191-198 A8 "DD/MM/YY" Obs7 Epoch of the flux density measurement
200-206 F7.1 mJy F327MHz7 []? Flux density at 327-MHza7
208-213 F6.1 mJy e_F327MHz7 []? rms uncertainty on F327MHz7
216-223 A8 "DD/MM/YY" Obs8 Epoch of the flux density measurement
225-231 F7.1 mJy F327MHz8 []? Flux density at 327-MHza8
233-238 F6.1 mJy e_F327MHz8 []? rms uncertainty on F327MHz8
240-247 A8 "DD/MM/YY" Obs9 Epoch of the flux density measurement
249-255 F7.1 mJy F327MHz9 []? Flux density at 327-MHz9
257-262 F6.1 mJy e_F327MHz9 []? rms uncertainty on F327MHz9
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(End) Patricia Bauer [CDS] 09-May-1994