J/MNRAS/426/3295 Complete 150MHz GMRT source catalogue (Ghosh+, 2012)
Characterizing foreground for redshifted 21cm radiation:
150MHz Giant Metrewave Radio Telescope observations.
Ghosh A., Prasad J., Bharadwaj S., Ali Sk.S., Chengalur J.N.
<Mon. Not. R. Astron. Soc., 426, 3295-3314 (2012)>
=2012MNRAS.426.3295G 2012MNRAS.426.3295G
ADC_Keywords: Surveys ; Radio sources
Keywords: techniques: interferometric - diffuse radiation -
radio continuum: general
Abstract:
Foreground removal is a major challenge for detecting the redshifted
21cm neutral hydrogen (HI) signal from the Epoch of Reionization. We
have used 150MHz Giant Metrewave Radio Telescope observations to
characterize the statistical properties of the foregrounds in four
different fields of view.
Description:
We have observed in GMRT Time Allocation Committee (GTAC) the fields:
* I on 2008-01-08 for 11hrs at 153MHz, center(J2000)=05:30:00+60:00:00
* II on 2010-02-07 for 6hrs at 148MHz, center(J2000)=06:00:00+62:12:58
* III on 2010-02-08 for 6hrs at 148MHz, center(J2000)=12:36:49+62:12:58
* IV on 2005-06-15 for 13hrs at 153MHz, center(J2000)=01:36:48+41:24:23
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 71 206 The complete 150MHz GMRT source catalogue,
listed in ascending order of right ascension
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See also:
J/MNRAS/405/436 : LBDS-Lynx region GMRT 150-MHz obs. (Ishwara-Chandra+, 2010)
Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- --- [GMRT]
5- 22 A18 --- GMRT Source name (JHHMMSS.s+DDMMSS.s)
24- 25 I2 h RAh Right ascension (J2000)
27- 28 I2 min RAm Right ascension (J2000)
30- 34 F5.2 s RAs Right ascension (J2000)
36 A1 --- DE- Declination sign (J2000)
37- 38 I2 deg DEd Declination (J2000)
40- 41 I2 arcmin DEm Declination (J2000)
43- 47 F5.2 arcsec DEs Declination (J2000)
49- 54 F6.2 mJy Fpeak Peak flux at 150MHz, in mJy/beam
56- 59 F4.2 mJy Noise Local noise at 150MHz, in mJy/beam
61- 66 F6.2 mJy Fint Integrated flux density at 150MHz
68- 71 F4.2 mJy e_Fint rms uncertainty on FInt
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 25-Apr-2013