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H
2
O
BRE18 - Water masers and ammonia (1, 1) and (2, 2) towards six regions in the Carina Nebula
Short title
: Breen et al. (2018)
Authors
: Breen, S. L.Green, C. -E.Cunningham, M. R.Voronkov, M. A.Horiuchi, S.Green, J. A.
Journal
: Monthly Notices of the Royal Astronomical Society, Volume 473, Issue 1, p.2-13
Bibcode
:
2018MNRAS.473....2B
Target type
: High_mass_SFR
Abstract
We present water maser and ammonia (1, 1) and (2, 2) observations, towards six regions in the Carina Nebula, conducted with the Australia Telescope Compact Array. In total five water masers were detected within two of the target fields, and we provide their accurate positions and characteristics. These five water masers constitute all of the known masers detected towards star formation regions in the Carina Nebula and we argue, that given the evidence for active star formation, and the presence of many high-mass stars, the Carina Nebula is uncharacteristically devoid of masers. Our results are consistent with the Carina Nebula having a lack of young high-mass stars, despite the presence of older high-mass stars. Ammonia (1, 1) and (2, 2) emission was detected towards all but one of the target fields and we find that their linewidths and derived temperatures are consistent with the presence of young star formation regions.
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Table (CSV)
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Detection table from Breen et al. (2018)
Export table to csv
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individual components
ID
Obs. RA
Obs. Dec
l
b
Group id
Source name
Other name
Image
Descr.
Line
V
range
V
peak
F
peak
∫F dv
Telescope
Configuration
V
step
RMS
Beam
Detection
Class
Dist. (parallax)
Date
(J2000)
(J2000)
(deg.)
(deg.)
Other name
H
2
O
(km/s)
(km/s)
(Jy)
(Jy*km/s)
(km/s)
(mJy)
(arcsec)
Yes
/
No
(kpc)
1
10 43 26
-59 34 00
287.3600
-0.6219
G287.360-0.622
Car I
Car I
Image
Descr
22 GHz
;
10
-23.2
TID
0.1
48
+H
2
O
MIXED
2011 April 12 and 13
2
10 43 23.2
-59 33 56.5
287.3544
-0.6238
G287.360-0.622
Car I_1
G 287.354-0.624
Image
22 GHz
;
-30.8;44.8
3.6
13.3
14.8
ATCA
H75
0.5
24.000
26 x 20
+H
2
O
MIXED
2019 July 21/22
3
10 43 25.2
-59 33 58.4
287.3583
-0.6223
G287.360-0.622
Car I_1
G 287.358-0.622
Image
22 GHz
;
-24.1;-17.8
5.2
-19.4
8.1
ATCA
H75
0.5
24.000
26 x 20
+H
2
O
MIXED
2019 July 21/22
4
10 43 29
-59 34 14.5
287.3675
-0.6225
G287.360-0.622
Car I_1
G 287.368-0.622
Image
22 GHz
;
-43.4;-32
0.5
-32.9
0.9
ATCA
H75
0.5
24.000
26 x 20
+H
2
O
MIXED
2019 July 21/22
5
10 43 29.6
-59 34 15.1
287.3686
-0.6221
G287.360-0.622
Car I_1
G 287.369-0.622
22 GHz
;
-28.7;-11.9
1.7
-25.7
5.9
ATCA
H75
0.5
24.000
26 x 20
+H
2
O
MIXED
2019 July 21/22
6
10 45 56.3
-59 56 37
287.8151
-0.8076
G287.815-0.812
G 287.84-0.82
G 287.815-0.808
Image
Descr
22 GHz
;
-13.6;-11.9
0.9
-12.7
0.9
ATCA
H75
0.5
29.000
26 x 20
+H
2
O
-CH
3
OH II
MIXED
2013 July 21/22
Non-detection table from Breen et al. (2018)
Export table to csv
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Show
individual components
ID
Obs. RA
Obs. Dec
l
b
Group id
Source name
Descr.
Line
Telescope
Configuration
V
step
RMS
Beam
Detection
Class
Date
(J2000)
(J2000)
(deg.)
(deg.)
H
2
O
(km/s)
(mJy)
(arcsec)
Yes
/
No
1
10 44 40
-59 59 20
287.6954
-0.9218
G287.695-0.922
G 287.73-0.92
22 GHz
;
ATCA
H75
0.5
21.000
26 x 20
-H
2
O
MIXED
2012 July 21/22
2
10 45 55
-60 09 00
287.9084
-0.9917
G287.908-0.992
G 287.93-0.99
Descr
22 GHz
;
ATCA
H75
0.5
20.000
26 x 20
-H
2
O
SFR
2014 July 21/22
3
10 47 38
-60 03 00
288.0522
-0.8044
G288.052-0.804
G 288.07-0.80
Descr
22 GHz
;
ATCA
H75
0.5
21.000
26 x 20
-H
2
O
SFR
2015 July 21/22
4
10 43 50
-59 55 30
287.5733
-0.9142
G287.573-0.914
HH666_1
Descr
22 GHz
;
ATCA
H75
0.5
22.000
26 x 20
-H
2
O
SFR
2016 July 21/22
5
10 44 00
-59 56 10
287.5969
-0.9142
G287.597-0.914
HH666_2
22 GHz
;
ATCA
H75
0.5
20.000
26 x 20
-H
2
O
EVOLVED
2017 July 21/22
6
10 43 40
-59 55 00
287.5509
-0.9167
G287.551-0.917
HH666_3
22 GHz
;
ATCA
H75
0.5
20.000
26 x 20
-H
2
O
MIXED
2018 July 21/22
7
10 43 25
-59 34 15
287.3601
-0.6266
G287.360-0.622
Car I_2
22 GHz
;
ATCA
H75
0.5
97.000
26 x 20
+H
2
O
MIXED
2020 July 21/22
8
10 43 17
-59 34 30
287.3472
-0.6382
G287.360-0.622
Car I_3
22 GHz
;
ATCA
H75
0.5
40.000
26 x 20
+H
2
O
MIXED
2021 July 21/22
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select MAX(h2o_data_all.ra_hms) as ra_hms,MAX(h2o_data_all.dec_dms) as dec_dms,MAX(h2o_data_all.source_name) as source_name,MAX(h2o_data_all.ra) as ra,MAX(h2o_data_all.dec) as dec,MAX(h2o_data_all.l) as l,MAX(h2o_data_all.b) as b,MAX(h2o_data_all.grp) as grp,MAX(h2o_data_all.other_name) as other_name,MAX(h2o_data_all.other_desc) as other_desc,BOOL_OR(thermal) as thermal,MAX(h2o_data_all.line) as line,MAX(h2o_data_all.vrange) as vrange,MAX(h2o_data_all.vpeak) as vpeak,MAX(h2o_data_all.peak) as peak,MAX(h2o_data_all.fwhm) as fwhm,MAX(h2o_data_all.int) as int,MAX(h2o_data_all.rms) as rms,MAX(h2o_data_all.units) as units,MAX(h2o_data_all.units_rms) as units_rms,MAX(h2o_data_all.date_txt) as date_txt,MAX(h2o_data_all.telescope_ref) as telescope_ref,MAX(h2o_data_all.telescope_conf) as telescope_conf,MAX(h2o_data_all.v_step) as v_step,MAX(h2o_data_all.beam) as beam,MAX(h2o_data_all.beam_maj) as beam_maj,MAX(h2o_data_all.beam_min) as beam_min,MAX(h2o_data_all.beam_pa) as beam_pa,MAX(h2o_data_all.ref) as ref,MAX(h2o_data_all.list_ref) as list_ref,MAX(h2o_data_all.ascii) as ascii,MAX(h2o_data_all.url) as url,MAX(h2o_data_all.image) as image,MAX(h2o_data_all.image2) as image2,MAX(h2o_data_all.image3) as image3,MAX(h2o_data_all.descr) as descr,MAX(h2o_data_all.id) as id,BOOL_OR(mjy_flag) as mjy_flag,BOOL_OR(rms_mjy_flag) as rms_mjy_flag,MAX(h2o_data_all.dist) as dist,1 as dist_parallax,MAX(h2o_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 h2o_data_all LEFT JOIN all_objects_withmet ON h2o_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 h2o_data_all.line=transitions."Line" WHERE ref ilike 'BRE18' AND detected=true AND hide=false GROUP BY ref
select h2o_data_all.ra_hms,h2o_data_all.dec_dms,h2o_data_all.source_name,h2o_data_all.ra,h2o_data_all.dec,h2o_data_all.l,h2o_data_all.b,h2o_data_all.grp,h2o_data_all.other_name,h2o_data_all.other_desc,h2o_data_all.thermal,h2o_data_all.line,h2o_data_all.vrange,h2o_data_all.vpeak,h2o_data_all.peak,h2o_data_all.fwhm,h2o_data_all.int,h2o_data_all.rms,h2o_data_all.units,h2o_data_all.units_rms,h2o_data_all.date_txt,h2o_data_all.telescope_ref,h2o_data_all.telescope_conf,h2o_data_all.v_step,h2o_data_all.beam,h2o_data_all.beam_maj,h2o_data_all.beam_min,h2o_data_all.beam_pa,h2o_data_all.ref,h2o_data_all.list_ref,h2o_data_all.ascii,h2o_data_all.url,h2o_data_all.image,h2o_data_all.image2,h2o_data_all.image3,h2o_data_all.descr,h2o_data_all.id,h2o_data_all.mjy_flag,h2o_data_all.rms_mjy_flag,h2o_data_all.dist,h2o_data_all.dist_parallax,h2o_data_all.date_txt,line_det,type,simbad_types_cat FROM h2o_data_all LEFT JOIN all_objects_withmet ON h2o_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 h2o_data_all.line=transitions."Line" WHERE ref ilike 'BRE18' AND detected=true AND hide=false ORDER BY detected DESC,id
