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CH3OH_I
CHE16 - Class I methanol megamasers: a potential probe of starburst activity and feedback in active galaxies
Short title
: Chen et al. (2016)
Authors
: Chen, X. Ellingsen, S. P. Zhang, J.-S. Wang, J.-Z. Shen, Z.-Q. Wu, Q.-W. Wu, Z.-Z.
Journal
: Monthly Notices of the Royal Astronomical Society, Volume 459, Issue 1, p.357-365
Bibcode
:
2016MNRAS.459..357C
PDF
:
CHE16.pdf
Target type
: Extragalactic
Transitions
: SiO_1-0v0,CH3OH_25-30_GHz(I),CH3OH_36(I),CH3OH_44(I),CH3OH_84(I),CH3OH_95(I),CH3OH_6(II),CH3OH_37(II),CH3OH_38(II)
Abstract
Previous observations have shown that the distribution of 36.2-GHz class I methanol megamaser (MM) emission in Arp 220 is highly correlated with the diffuse X-rays. On this basis it was suggested that methanol MM may be produced either by the effects of galactic-outflow-driven shocks and/or cosmic rays. Here we report the results of a single-dish survey undertaken with the Greenbank Telescope (GBT) to improve our understanding of the pumping conditions of extragalactic class I methanol masers and their relationship to starburst and feedback processes within the host galaxies, towards a sample which includes 16 galaxies which show both extended soft X-ray emission, and either OH or H
2
O MM emission. Large baseline ripples in the GBT spectra limited our results to tentative detections towards 11 of the target galaxies. Analysis of these tentative detections shows that there are significant correlations between the methanol intensity and the host-galaxy infrared, radio and OH MM emission, but no correlation with the X-ray and H
2
O MM emission. Some sources show methanol emission significantly offset from the systemic velocity of the galaxy (by up to 1000 km s
-1
) and we propose that these are associated with galactic-scale outflows from active galactic nuclei (AGNs) feedback. The combined observational properties suggest that class I methanol MMs are related to significant starburst and molecular outflow activity and hence may provide a potential probe of AGN feedback and starburst processes in the host galaxies.
Comments:
Extended X-ray galaxies which show megamaser emission from water or OH
Input tables
: Table 1 and 2
Download as
:
Table (CSV)
View paper statistics
Detection table from Chen et al. (2016)
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individual components
ID
Obs. RA
Obs. Dec
l
b
Source name
Line
V
peak
FWHM
∫F dv
Telescope
RMS
Beam
(J2000)
(J2000)
(deg.)
(deg.)
CH
3
OH (class I)
(km/s)
(km/s)
(mJy*km/s)
(mJy)
(arcsec)
1
01 24 35.1
+03 47 32.7
138.7058
-58.0606
NGC520
36 GHz (I)
2070(10)
185(23)
785(95)
GBT
157.000
20
2
11 28 32.2
+58 33 51
141.9020
55.4051
NGC3690
36 GHz (I)
2976(23)
221(20)
692(17)
GBT
80.500
20
3
12 13 46
+02 48 40.1
280.9872
64.0660
IRAS12112+0305
36 GHz (I)
22020(16)
232(16)
352(13)
GBT
61.800
20
4
12 18 57.5
+47 18 14
138.3204
68.8421
NGC4258
36 GHz (I)
476(26)
252(21)
405(18)
GBT
75.000
20
5
12 56 14.2
+56 52 25.2
121.6108
60.2423
Mrk231
36 GHz (I)
11573(18)
323(25)
2140(145)
GBT
97.700
20
6
12 56 14.2
+56 52 25.2
121.6108
60.2423
Mrk231
36 GHz (I)
12354(24)
316(18)
707(143)
GBT
20
7
12 56 14.2
+56 52 25.2
121.6108
60.2423
Mrk231
36 GHz (I)
13689(17)
290(24)
2340(137)
GBT
20
8
15 26 59.4
+35 58 37.3
57.8115
55.9426
IRAS15250+3609
36 GHz (I)
16403(20)
301(50)
588(90)
GBT
82.800
20
9
00 53 34.9
+12 41 36
123.7483
-50.1750
IRAS00509+1225
36 GHz (I)
17201(6)
42(20)
216(80)
GBT
67.500
20
10
00 53 34.9
+12 41 36
123.7483
-50.1750
IRAS00509+1225
36 GHz (I)
17648(20)
104(50)
347(142)
GBT
20
11
00 53 34.9
+12 41 36
123.7483
-50.1750
IRAS00509+1225
36 GHz (I)
18229(15)
90(35)
396(136)
GBT
20
12
12 25 46.7
+12 39 44
279.1201
74.3355
NGC4388
36 GHz (I)
2190(10)
50(14)
118(43)
GBT
33.700
20
13
14 42 23.9
-17 15 11
337.3245
38.0985
NGC5728
36 GHz (I)
2238(15)
217(36)
727(114)
GBT
110.200
20
14
23 39 1.3
+36 21 08
106.9979
-24.2688
IR23365+3604
36 GHz (I)
20425(18)
164(24)
448(59)
GBT
104.200
20
Non-detection table from Chen et al. (2016)
Export table to csv
Hide
/
Show
individual components
ID
Obs. RA
Obs. Dec
l
b
Source name
Line
Telescope
Beam
(J2000)
(J2000)
(deg.)
(deg.)
CH
3
OH (class I)
(arcsec)
1
09 14 5.1
+40 06 49
182.1511
43.6778
NGC2782
36 GHz (I)
GBT
20
2
16 52 58.9
+02 24 03
20.7290
27.2908
NGC6240
36 GHz (I)
GBT
20
3
13 29 52.7
+47 11 43
104.8516
68.5607
M51
36 GHz (I)
GBT
20
4
09 35 51.6
+61 21 11
152.4765
42.8968
UGC5101
36 GHz (I)
GBT
20
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Group name
Line detection (H
2
O, OH, SiO, CH
3
OH (I), CH
3
OH (II))
IRAS source
IRAS coordinates (RA, Dec)
IRAS flux density (F12,F25,F60,F100)
2MASS source
2MASS coordinates (RA, Dec)
2MASS magnituted (J,H,K)
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Variable star parameters
Star Formation Region name
Star Formation Region parameters
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Continuum
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2
O maser detection
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UKIDSS K
2MASS K
select met1_data.ra_hms,met1_data.dec_dms,met1_data.source_name,met1_data.ra,met1_data.dec,met1_data.l,met1_data.b,met1_data.other_name,met1_data.other_desc,met1_data.line,met1_data.vrange,met1_data.vpeak,met1_data.peak,met1_data.fwhm,met1_data.int,met1_data.rms,met1_data.units,met1_data.units_rms,met1_data.date_txt,met1_data.telescope_ref,met1_data.beam,met1_data.beam_maj,met1_data.beam_min,met1_data.beam_pa,met1_data.ref,met1_data.list_ref,met1_data.ascii,met1_data.image,met1_data.descr,met1_data.id,met1_data.mjy_flag,met1_data.rms_mjy_flag,met1_data.dist FROM met1_data LEFT JOIN transitions ON met1_data.line=transitions."Line" WHERE ref ilike 'CHE16' AND detected=true AND hide=false ORDER BY detected DESC,id
