/
ReadMe
77 lines (71 loc) · 4.46 KB
/
ReadMe
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
GMRT survey of regions towards the Taurus Molecular Cloud at 323 and 608 MHz
(Ainsworth+ submitted)
================================================================================
GMRT survey of regions towards the Taurus Molecular Cloud at 323 and 608 MHz
Ainsworth R. E., Coughlan C. P., Green D. A., Scaife A. M. M., Ray T. P.
<Mon. Not. R. Astron. Soc. (submitted)>
================================================================================
ADC_Keywords: Radio sources ; Surveys
Keywords: surveys - catalogues - radio continuum: galaxies
Description:
We present observations of three regions in the constellation Taurus taken
at 323 and 608 MHz (90 and 50 cm, respectively) with the Giant Metrewave
Radio Telescope (GMRT), in particular towards the molecular cloud complex
where there are active sites of star formation. Three pointings were
observed as part of a pathfinder project, targeted at the young stellar
objects (YSOs) L1551 IRS 5, T Tau and DG Tau (the results for these target
sources were presented in a previous paper). In this paper, we search for
other YSOs and present a survey comprising of all three fields; a by-product
of the large instantaneous field of view of the GMRT. The resolution of the
survey is of order 10 arcsec and the best rms noise at the centre of each
pointing is of order 100 uJy at 323 MHz and 50 uJy at 608 MHz. We present
a catalogue of 1815 and 687 field sources detected above 5 sigma at 323 and
608 MHz, respectively. A total of 440 sources were detected at both
frequencies, corresponding to a total unique source count of 2062 sources.
We compare the results with previous surveys and showcase a sample of
extended extragalactic objects. Although no further YSOs were detected in
addition to the target YSOs based on our source finding criteria, these data
can be useful for targeted manual searches, studies of radio galaxies or to
assist in the calibration of future observations with the Low Frequency Array
(LOFAR) towards these regions.
For further details of the surveys and data analysis procedures please
refer to the published paper referenced at the head of this file.
File Summary:
--------------------------------------------------------------------------------
FileName Records Explanations
--------------------------------------------------------------------------------
ReadMe . This file
GMRT-TAU.dat 2062 GMRT LH sourcelist of 2062 sources
GMRT-TAU_PyBDSM.csv 2503 PyBDSM parameter output for each source
detection (1815 detections at 323 MHz
and 687 detections at 608 MHz) plus
header line
--------------------------------------------------------------------------------
Description of file: GMRT-TAU.dat
--------------------------------------------------------------------------------
Column Units Label Explanations
--------------------------------------------------------------------------------
1 --- Name IAU designation of source
2 h:m:s RA Centroid position right ascension J2000
3 d:am:as DEc Centroid position declination J2000
4 mJy/beam Sp323 Peak flux at 323 MHz
5 mJy/beam E_Sp323 Error on peak flux at 323 MHz
6 mJy Sint323 Integrated flux at 323 MHz
7 mJy E_Sint323 Error on integrated flux at 323 MHz
8 uJy/beam Noise323 Local rms noise at 323 MHz
9 --- S_Code323 S_Code at 323 MHz
10 mJy/beam Sp608 Peak flux at 608 MHz
11 mJy/beam E_Sp608 Error on peak flux at 608 MHz
12 mJy Sint608 Integrated flux at 608 MHz
13 mJy E_Sint608 Error on integrated flux at 608 MHz
14 uJy/beam Noise608 Local rms noise at 608 MHz
15 --- S_Code608 S_Code at 608 MHz
16 --- SI_GMRT GMRT spectral index
17 --- E_SI_GMRT Error on GMRT spectral index
18 --- NVSS NVSS detection
19 --- SI_NVSS GMRT-NVSS spectral index
20 --- E_SI_NVSS Error on GMRT-NVSS spectral index
21 --- KC Known counterparts
--------------------------------------------------------------------------------
================================================================================
(End) Rachael Ainsworth [DIAS] 27-May-2016 (27-May-2016)