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Data:
H
2
O
,
CH3OH_I
LYO14 - Unbiased Water and Methanol Maser Surveys of NGC 1333
Short title
: Lyo et al. (2014)
Authors
: Lyo, A.-Ran Kim, Jongsoo Byun, Do-Young Lee, Ho-Gyu
Journal
: The Astronomical Journal, Volume 148, Issue 5, article id. 80,
10
pp. (2014).
Bibcode
:
2014AJ....148...80L
PDF
:
LYO14.pdf
Target type
: High_mass_SFR
Transitions
: CH3OH_23.4(I),CH3OH_25-30_GHz(I),CH3OH_36(I),CH3OH_44(I),CH3OH_95(I),CH3OH_132(I),CH3OH_19(II)
Abstract
We present the results of unbiased 22 GHz H
2
O water and 44 GHz class I CH
3
OH methanol maser surveys in the central 7' × 10' area of NGC 1333 and two additional mapping observations of a 22 GHz water maser in a ~3' × 3' area of the IRAS4A region. In the 22 GHz water maser survey of NGC 1333 with a sensitivity of sigma ~ 0.3 Jy, we confirmed the detection of masers toward H
2
O(B) in the region of HH 7-11 and IRAS4B. We also detected new water masers located ~20'' away in the western direction of IRAS4B or ~25'' away in the southern direction of IRAS4A. We could not, however, find young stellar objects or molecular outflows associated with them. They showed two different velocity components of ~0 and ~16 km s
-1
, which are blue- and redshifted relative to the adopted systemic velocity of ~7 km s
-1
for NGC 1333. They also showed time variabilities in both intensity and velocity from multi-epoch observations and an anti-correlation between the intensities of the blue- and redshifted velocity components. We suggest that the unidentified power source of these masers might be found in the earliest evolutionary stage of star formation, before the onset of molecular outflows. Finding this kind of water maser is only possible through an unbiased blind survey. In the 44 GHz methanol maser survey with a sensitivity of sigma ~ 0.5 Jy, we confirmed masers toward IRAS4A2 and the eastern shock region of IRAS2A. Both sources are also detected in 95 and 132 GHz methanol maser lines. In addition, we had new detections of methanol masers at 95 and 132 GHz toward IRAS4B. In terms of the isotropic luminosity, we detected methanol maser sources brighter than ~5 × 10
25
erg s
-1
from our unbiased survey. eprintid:
arXiv:1407.6776
Target sources:
Coordinates from GAUSSCLUMPS
Input tables
: Table 2,4
Download as
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Table (CSV)
View paper statistics
Detection table from Lyo et al. (2014)
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individual components
ID
Obs. RA
Obs. Dec
l
b
Source name
Image
Line
V
peak
FWHM
F
peak
∫F dv
Telescope
Beam
Date
(J2000)
(J2000)
(deg.)
(deg.)
H
2
O
(km/s)
(km/s)
(Jy)
(Jy*km/s)
(arcsec)
1
03 29 10.5
+31 13 10.8
158.3988
-20.5790
NGC 1333 Unident. Source
Image
H2O
0.09 (0.00)
0.56 (0.01)
44.64
26.400.20
KVN
120
2013 Apr 26
2
03 29 10.5
+31 13 10.8
158.3988
-20.5790
NGC 1333 Unident. source
H2O
0.01 (0.02)
0.54 (0.06)
11.24
6.50 (0.60)
KVN
120
2013 May 3
3
03 29 10.5
+31 13 10.8
158.3988
-20.5790
NGC 1333 Unident. source
H2O
16.55 (0.05)
0.55 (0.10)
5.07
2.95 (0.54)
KVN
120
2013 May 3
4
03 29 10.5
+31 13 10.8
158.3988
-20.5790
NGC 1333 Unident. source
H2O
-0.01 (0.03)
0.63 (0.06)
4.96
3.33 (0.28)
KVN
120
2013 May 7
5
03 29 10.5
+31 13 10.8
158.3988
-20.5790
NGC 1333 Unident. source
H2O
16.32 (0.03)
0.64 (0.07)
5.02
3.41 (0.29)
KVN
120
2013 May 7
6
03 29 10.5
+31 13 10.8
158.3988
-20.5790
NGC 1333 Unident. source
H2O
-3.05 (0.05)
0.42 (0.10)
1.37
0.61 (0.13)
KVN
120
2013 May 11
7
03 29 10.5
+31 13 10.8
158.3988
-20.5790
NGC 1333 Unident. source
H2O
0.07 (0.03)
0.72 (0.06)
2.79
2.13 (0.17)
KVN
120
2013 May 11
8
03 29 10.5
+31 13 10.8
158.3988
-20.5790
NGC 1333 Unident. source
H2O
2.51 (0.04)
0.95 (0.09)
2.62
2.66 (0.21)
KVN
120
2013 May 11
9
03 29 10.5
+31 13 10.8
158.3988
-20.5790
NGC 1333 Unident. source
H2O
15.16 (0.10)
0.95 (0.22)
1.19
1.20 (0.23)
KVN
120
2013 May 11
10
03 29 10.5
+31 13 10.8
158.3988
-20.5790
NGC 1333 Unident. source
H2O
16.24 (0.02)
0.55 (0.05)
4.48
2.63 (0.20)
KVN
120
2013 May 11
11
03 29 10.9
+31 13 23.4
158.3979
-20.5752
NGC 1333 IRAS4A1
H2O
7.04 (0.05)
1.08 (0.21)
1.4
1.61 (0.21)
KVN
120
2011 Oct 13
12
03 29 11.7
+31 13 7.8
158.4031
-20.5770
NGC 1333 IRAS4B
H2O
9.83 (0.08)
0.52 (0.20)
1.17
0.64 (0.20)
KVN
120
2012 Feb 20
13
03 29 11.7
+31 13 7.8
158.4031
-20.5770
NGC 1333 IRAS4B
H2O
10.96 (0.13)
0.69 (0.24)
0.89
0.65 (0.20)
KVN
120
2012 Feb 20
14
03 29 11.7
+31 13 7.8
158.4031
-20.5770
NGC 1333 IRAS4B
H2O
13.29 (0.07)
0.41 (0.19)
0.84
0.37 (0.17)
KVN
120
2012 Feb 20
15
03 29 11.7
+31 13 7.8
158.4031
-20.5770
NGC 1333 IRAS4B
H2O
14.51 (0.03)
0.49 (0.06)
3.18
1.65 (0.18)
KVN
120
2012 Feb 20
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select MAX(h2o_data.ra_hms) as ra_hms,MAX(h2o_data.dec_dms) as dec_dms,MAX(h2o_data.source_name) as source_name,MAX(h2o_data.ra) as ra,MAX(h2o_data.dec) as dec,MAX(h2o_data.l) as l,MAX(h2o_data.b) as b,MAX(h2o_data.other_name) as other_name,MAX(h2o_data.other_desc) as other_desc,BOOL_OR(thermal) as thermal,MAX(h2o_data.line) as line,MAX(h2o_data.vrange) as vrange,MAX(h2o_data.vpeak) as vpeak,MAX(h2o_data.peak) as peak,MAX(h2o_data.fwhm) as fwhm,MAX(h2o_data.int) as int,MAX(h2o_data.rms) as rms,MAX(h2o_data.units) as units,MAX(h2o_data.units_rms) as units_rms,MAX(h2o_data.date_txt) as date_txt,MAX(h2o_data.telescope_ref) as telescope_ref,MAX(h2o_data.beam) as beam,MAX(h2o_data.beam_maj) as beam_maj,MAX(h2o_data.beam_min) as beam_min,MAX(h2o_data.beam_pa) as beam_pa,MAX(h2o_data.ref) as ref,MAX(h2o_data.list_ref) as list_ref,MAX(h2o_data.ascii) as ascii,MAX(h2o_data.image) as image,MAX(h2o_data.descr) as descr,MAX(h2o_data.id) as id,BOOL_OR(mjy_flag) as mjy_flag,BOOL_OR(rms_mjy_flag) as rms_mjy_flag,MAX(h2o_data.dist) as dist,MAX(h2o_data.date_txt) as date_txt FROM h2o_data WHERE ref ilike 'LYO14' AND detected=true AND hide=false GROUP BY ref
select h2o_data.ra_hms,h2o_data.dec_dms,h2o_data.source_name,h2o_data.ra,h2o_data.dec,h2o_data.l,h2o_data.b,h2o_data.other_name,h2o_data.other_desc,h2o_data.thermal,h2o_data.line,h2o_data.vrange,h2o_data.vpeak,h2o_data.peak,h2o_data.fwhm,h2o_data.int,h2o_data.rms,h2o_data.units,h2o_data.units_rms,h2o_data.date_txt,h2o_data.telescope_ref,h2o_data.beam,h2o_data.beam_maj,h2o_data.beam_min,h2o_data.beam_pa,h2o_data.ref,h2o_data.list_ref,h2o_data.ascii,h2o_data.image,h2o_data.descr,h2o_data.id,h2o_data.mjy_flag,h2o_data.rms_mjy_flag,h2o_data.dist,h2o_data.date_txt FROM h2o_data WHERE ref ilike 'LYO14' AND detected=true AND hide=false ORDER BY detected DESC,id
