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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
Target type
: High_mass_SFR,Blind
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
:
Table (CSV)
View as list of objects
Detection table from Lyo et al. (2014)
Export table to csv
Hide
/
Show
individual components
ID
Obs. RA
Obs. Dec
l
b
Group id
Source name
Image
Line
V
peak
FWHM
F
peak
∫F dv
Telescope
Beam
Detection
Class
Dist. (parallax)
Date
(J2000)
(J2000)
(deg.)
(deg.)
CH
3
OH (class I)
(km/s)
(km/s)
(Jy)
(Jy*km/s)
(arcsec)
Yes
/
No
(kpc)
1
03 29 9.7
+31 13 21.6
158.3945
-20.5783
G158.400-20.576
NGC 1333 IRAS4A2
Image
44 GHz (I)
;
4.52 (0.29)
9.42 (0.58)
1.09
10.89 (0.63)
KVN
62
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
SFR
2012 Mar 11
03 29 9.7
+31 13 21.6
158.3945
-20.5783
G158.400-20.576
NGC 1333 IRAS4A2
44 GHz (I)
;
6.79 (0.04)
1.54 (0.12)
2.69
4.41 (0.35)
KVN
62
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
SFR
2012 Mar 11
3
03 29 9.7
+31 13 21.6
158.3945
-20.5783
G158.400-20.576
NGC 1333 IRAS4A2
95 GHz (I)
;
5.28 (0.16)
7.90 (0.49)
2.49
20.95 (0.82)
KVN
32
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
SFR
2012 Mar 11
03 29 9.7
+31 13 21.6
158.3945
-20.5783
G158.400-20.576
NGC 1333 IRAS4A2
95 GHz (I)
;
7.08 (0.02)
0.62 (0.11)
5.73
3.80 (0.46)
KVN
32
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
SFR
2012 Mar 11
5
03 29 9.7
+31 13 21.6
158.3945
-20.5783
G158.400-20.576
NGC 1333 IRAS4A2
132.8 GHz (I)
;
3.98 (0.33)
9.38 (0.63)
2.97
29.68 (2.02)
KVN
23
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
SFR
2012 Mar 11
03 29 9.7
+31 13 21.6
158.3945
-20.5783
G158.400-20.576
NGC 1333 IRAS4A2
132.8 GHz (I)
;
6.69 (0.08)
2.32 (0.33)
3.18
7.85 (1.44)
KVN
23
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
SFR
2012 Mar 11
7
03 29 11.7
+31 13 7.8
158.4031
-20.5770
G158.400-20.576
NGC 1333 IRAS4B
44 GHz (I)
;
4.84 (0.46)
10.39 (1.07)
0.7
7.79 (0.72)
KVN
62
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
SFR
2012 Apr 26
03 29 11.7
+31 13 7.8
158.4031
-20.5770
G158.400-20.576
NGC 1333 IRAS4B
44 GHz (I)
;
6.67 (0.07)
1.82 (0.18)
2.04
3.96 (0.44)
KVN
62
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
SFR
2012 Apr 26
9
03 29 11.7
+31 13 7.8
158.4031
-20.5770
G158.400-20.576
NGC 1333 IRAS4B
95 GHz (I)
;
6.66 (0.59)
24.57 (10.69)
0.28
7.36 (2.17)
KVN
32
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
SFR
2012 Apr 26
03 29 11.7
+31 13 7.8
158.4031
-20.5770
G158.400-20.576
NGC 1333 IRAS4B
95 GHz (I)
;
7.17 (0.13)
3.06 (0.32)
2.22
7.23 (0.86)
KVN
32
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
SFR
2012 Apr 26
11
03 29 11.7
+31 13 7.8
158.4031
-20.5770
G158.400-20.576
NGC 1333 IRAS4B
132.8 GHz (I)
;
5.45 (0.71)
14.90 (1.37)
0.95
15.00 (1.55)
KVN
23
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
SFR
2012 Apr 26
03 29 11.7
+31 13 7.8
158.4031
-20.5770
G158.400-20.576
NGC 1333 IRAS4B
132.8 GHz (I)
;
7.69 (0.05)
3.16 (0.15)
5.44
18.29 (1.05)
KVN
23
+H
2
O
+CH
3
OH I
-CH
3
OH II
+OH
SFR
2012 Apr 26
13
03 29 1.4
+31 14 18.6
158.3591
-20.5835
G158.355-20.586
NGC 1333 IRAS2A East
44 GHz (I)
;
10.03 (0.17)
4.66 (0.27)
1.21
6.02 (0.42)
KVN
62
+H
2
O
+CH
3
OH I
-CH
3
OH II
SFR
2012 Mar 20
03 29 1.4
+31 14 18.6
158.3591
-20.5835
G158.355-20.586
NGC 1333 IRAS2A East
44 GHz (I)
;
10.03 (0.27)
4.77 (0.62)
0.81
4.11 (0.15)
KVN
62
+H
2
O
+CH
3
OH I
-CH
3
OH II
SFR
2012 Mar 20
15
03 29 1.4
+31 14 18.6
158.3591
-20.5835
G158.355-20.586
NGC 1333 IRAS2A East
95 GHz (I)
;
9.25 (0.44)
3.85 (0.78)
3.36
13.75 (3.34)
KVN
32
+H
2
O
+CH
3
OH I
-CH
3
OH II
SFR
2012 Mar 20
03 29 1.4
+31 14 18.6
158.3591
-20.5835
G158.355-20.586
NGC 1333 IRAS2A East
95 GHz (I)
;
12.83 (0.96)
2.94 (1.20)
1.29
4.03 (2.97)
KVN
32
+H
2
O
+CH
3
OH I
-CH
3
OH II
SFR
2012 Mar 20
17
03 29 1.4
+31 14 18.6
158.3591
-20.5835
G158.355-20.586
NGC 1333 IRAS2A East
132.8 GHz (I)
;
8.56 (0.10)
2.87 (0.22)
9.14
27.94 (5.74)
KVN
23
+H
2
O
+CH
3
OH I
-CH
3
OH II
SFR
2012 Mar 20
03 29 1.4
+31 14 18.6
158.3591
-20.5835
G158.355-20.586
NGC 1333 IRAS2A East
132.8 GHz (I)
;
11.24 (0.29)
5.14 (0.36)
9.54
52.16 (6.29)
KVN
23
+H
2
O
+CH
3
OH I
-CH
3
OH II
SFR
2012 Mar 20
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select MAX(met1_data_all.ra_hms) as ra_hms,MAX(met1_data_all.dec_dms) as dec_dms,MAX(met1_data_all.source_name) as source_name,MAX(met1_data_all.ra) as ra,MAX(met1_data_all.dec) as dec,MAX(met1_data_all.l) as l,MAX(met1_data_all.b) as b,MAX(met1_data_all.grp) as grp,MAX(met1_data_all.other_name) as other_name,MAX(met1_data_all.other_desc) as other_desc,BOOL_OR(thermal) as thermal,MAX(met1_data_all.line) as line,MAX(met1_data_all.vrange) as vrange,MAX(met1_data_all.vpeak) as vpeak,MAX(met1_data_all.peak) as peak,MAX(met1_data_all.fwhm) as fwhm,MAX(met1_data_all.int) as int,MAX(met1_data_all.rms) as rms,MAX(met1_data_all.units) as units,MAX(met1_data_all.units_rms) as units_rms,MAX(met1_data_all.date_txt) as date_txt,MAX(met1_data_all.telescope_ref) as telescope_ref,MAX(met1_data_all.telescope_conf) as telescope_conf,MAX(met1_data_all.v_step) as v_step,MAX(met1_data_all.beam) as beam,MAX(met1_data_all.beam_maj) as beam_maj,MAX(met1_data_all.beam_min) as beam_min,MAX(met1_data_all.beam_pa) as beam_pa,MAX(met1_data_all.ref) as ref,MAX(met1_data_all.list_ref) as list_ref,MAX(met1_data_all.ascii) as ascii,MAX(met1_data_all.url) as url,MAX(met1_data_all.image) as image,MAX(met1_data_all.image2) as image2,MAX(met1_data_all.image3) as image3,MAX(met1_data_all.descr) as descr,MAX(met1_data_all.id) as id,BOOL_OR(mjy_flag) as mjy_flag,BOOL_OR(rms_mjy_flag) as rms_mjy_flag,MAX(met1_data_all.dist) as dist,1 as dist_parallax,MAX(met1_data_all.date_txt) as date_txt,MAX(line_det) as line_det,MAX(type) as type,MAX(simbad_types_cat) as simbad_types_cat FROM met1_data_all LEFT JOIN all_objects_withmet ON met1_data_all.grp=all_objects_withmet.group_name LEFT JOIN object_categories ON all_objects_withmet.group_name = object_categories.group_name_cat AND object_categories.tbl_cat = 'all_objects_withmet' LEFT JOIN transitions ON met1_data_all.line=transitions."Line" WHERE ref ilike 'LYO14' AND detected=true AND hide=false GROUP BY ref
select met1_data_all.ra_hms,met1_data_all.dec_dms,met1_data_all.source_name,met1_data_all.ra,met1_data_all.dec,met1_data_all.l,met1_data_all.b,met1_data_all.grp,met1_data_all.other_name,met1_data_all.other_desc,met1_data_all.thermal,met1_data_all.line,met1_data_all.vrange,met1_data_all.vpeak,met1_data_all.peak,met1_data_all.fwhm,met1_data_all.int,met1_data_all.rms,met1_data_all.units,met1_data_all.units_rms,met1_data_all.date_txt,met1_data_all.telescope_ref,met1_data_all.telescope_conf,met1_data_all.v_step,met1_data_all.beam,met1_data_all.beam_maj,met1_data_all.beam_min,met1_data_all.beam_pa,met1_data_all.ref,met1_data_all.list_ref,met1_data_all.ascii,met1_data_all.url,met1_data_all.image,met1_data_all.image2,met1_data_all.image3,met1_data_all.descr,met1_data_all.id,met1_data_all.mjy_flag,met1_data_all.rms_mjy_flag,met1_data_all.dist,met1_data_all.dist_parallax,met1_data_all.date_txt,line_det,type,simbad_types_cat FROM met1_data_all LEFT JOIN all_objects_withmet ON met1_data_all.grp=all_objects_withmet.group_name LEFT JOIN object_categories ON all_objects_withmet.group_name = object_categories.group_name_cat AND object_categories.tbl_cat = 'all_objects_withmet' LEFT JOIN transitions ON met1_data_all.line=transitions."Line" WHERE ref ilike 'LYO14' AND detected=true AND hide=false ORDER BY detected DESC,id
