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OH
SZY99 - A comparison of OH and H_2O maser properties of Mira and semiregular variable stars
Interferometry data
Short title
: Szymczak & Le Squeren (1999)
Authors
: Szymczak, M. Le Squeren, A. M.
Journal
: Monthly Notices of the Royal Astronomical Society, Volume 304, Issue 2, pp. 415-420.
Bibcode
:
1999MNRAS.304..415S
Abstract
A sample of 17 Miras and nine semiregular variable stars was simultaneously observed in the OH and H_2O maser lines with sensitivities of 0.15 and 0.6 Jy, respectively. One new H_2O source was detected. Among Miras the H_2O maser luminosity is well correlated with the OH maser luminosity. The ratio of H_2O to OH maser luminosities decreases by about four orders of magnitude from the semiregulars to the Miras as a result of an increase in the mass-loss rate. Some semiregulars have maser properties typical of Mira stars. H_2O emission is most likely to be detected from Miras at velocities close to the stellar velocity, while emission at blueshifted velocities dominates the detections from semiregulars. OH emission from the semiregulars usually occurs at greater redshifts and blueshifts with respect to the stellar velocities than OH emission observed from the Miras. The differences in the average composite maser profiles in both groups of stars can be related to the velocity gradients in the maser regions. It is suggested that some semiregular variables with maser emission may be in a later stage of stellar evolution than the Miras.
Comments:
Velocity resolution: 0.28 km/s
Upper limit for non-detections: <0.3 Jy (3σ)
Data not given in Table 1 was provided by M. Szymzcak.
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Table (CSV)
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Spectra (ASCII)
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Detection table from Szymczak & Le Squeren (1999)
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individual components
ID
Obs. RA
Obs. Dec
l
b
Source name
Spectra
Frequency
V
low
V
up
V
peak
V
peak(2)
F
peak
F
peak(2)
List
Ref.
(J2000)
(J2000)
(deg.)
(deg.)
(MHz)
(km/s)
(km/s)
(km/s)
(km/s)
(Jy)
(Jy)
1
23 58 24.9
+51 23 19.7
114.56084
-10.619074
R Cas
1667
21.1
31.5
21.1
31.5
0.700
0.76
ENG15
SZY99
2
23 58 24.9
+51 23 19.7
114.56084
-10.619074
R Cas
1665
23.1
29.8
23.1
29.8
0.520
0.56
ENG15
SZY99
3
02 44 45.5
+12 19 03
161.473537
-41.919417
RU Ari
1612
16.2
24.1
16.2
24.1
0.560
1.52
ENG15
SZY99
4
02 44 45.5
+12 19 03
161.473537
-41.919417
RU Ari
1667
23.6
24.8
23.6
24.8
0.610
0.57
ENG15
SZY99
5
02 44 45.5
+12 19 03
161.473537
-41.919417
RU Ari
1665
17.5
23.7
17.5
23.7
0.094
0.33
ENG15
SZY99
6
00 03 21.3
+55 40 50
116.144009
-6.556206
Y Cas
Spectra
1667
-22.2
-12.1
-22.2
-12.1
0.420
0.39
ENG15
SZY99
7
00 03 21.3
+55 40 50
116.144009
-6.556206
Y Cas
1665
-21.9
-12.4
-21.9
-12.4
0.480
0.25
ENG15
SZY99
8
00 46 0.1
+69 10 53.4
122.446016
6.31488
V524 Cas
1612
-34.8
-16.5
-34.8
-16.5
1.280
0.56
ENG15
SZY99
9
00 46 0.1
+69 10 53.4
122.446016
6.31488
V524 Cas
1667
-24.5
-24.5
0.120
ENG15
SZY99
10
00 46 0.1
+69 10 53.4
122.446016
6.31488
V524 Cas
1665
-28.1
-24.5
-28.1
-24.5
0.080
0.14
ENG15
SZY99
11
10 53 37.4
+13 42 54.3
233.021992
59.426355
W Leo
1667
41.8
51.1
41.8
51.1
0.210
0.25
ENG15
SZY99
12
10 53 37.4
+13 42 54.3
233.021992
59.426355
W Leo
1665
50.6
51.7
50.6
51.7
0.200
0.16
ENG15
SZY99
13
16 25 47.5
+18 53 32.9
35.34514
40.350862
U Her
1612
-18.5
-9.0
-18.5
-9.0
2.480
0.59
ENG15
SZY99
14
16 25 47.5
+18 53 32.9
35.34514
40.350862
U Her
1667
-18.7
-9.2
-18.7
-9.2
5.160
1.78
ENG15
SZY99
15
16 25 47.5
+18 53 32.9
35.34514
40.350862
U Her
1665
-18.8
-17.9
-18.8
-17.9
4.150
4.56
ENG15
SZY99
16
05 55 49.2
+20 10 30.7
188.715149
-2.492122
U Ori
1667
-41.5
-41.1
-41.5
-41.1
1.630
1.31
ENG15
SZY99
17
05 55 49.2
+20 10 30.7
188.715149
-2.492122
U Ori
1665
-41.6
-40.4
-41.6
-40.4
2.210
1.29
ENG15
SZY99
18
04 28 18
+10 09 44.8
185.217432
-25.581329
R Tau
1667
14.4
14.4
0.260
ENG15
SZY99
19
04 28 18
+10 09 44.8
185.217432
-25.581329
R Tau
1665
14.7
14.7
0.180
ENG15
SZY99
20
15 21 39.5
+14 18 53.1
20.498175
52.786522
S Ser
1667
25.2
25.2
0.310
ENG15
SZY99
21
15 21 39.5
+14 18 53.1
20.498175
52.786522
S Ser
1665
19.3
25.5
19.3
25.5
0.140
0.1
ENG15
SZY99
22
06 37 31.3
-01 23 43.6
212.588003
-3.732456
SY Mon
1667
-58.4
-52.2
-58.4
-52.2
0.180
0.33
ENG15
SZY99
23
06 37 31.3
-01 23 43.6
212.588003
-3.732456
SY Mon
1665
-55.3
-52.2
-55.3
-52.2
0.190
0.31
ENG15
SZY99
24
22 12 16.2
+14 33 12.2
75.18579
-33.183332
RS Peg
1667
-20.3
-20.3
0.240
ENG15
SZY99
25
22 12 16.2
+14 33 12.2
75.18579
-33.183332
RS Peg
1665
-20.0
-20.0
0.480
ENG15
SZY99
26
14 27 16.4
+04 40 41.1
352.674077
57.971458
RS Vir
1612
-18.4
-10.2
-18.4
-10.2
1.950
4.89
ENG15
SZY99
27
14 27 16.4
+04 40 41.1
352.674077
57.971458
RS Vir
1667
-17.4
-10.3
-17.4
-10.3
0.660
1.26
ENG15
SZY99
28
14 27 16.4
+04 40 41.1
352.674077
57.971458
RS Vir
1665
-17.9
-17.9
0.910
ENG15
SZY99
29
09 47 33.5
+11 25 43.6
223.720739
44.159756
R Leo
1665
-1.5
4.1
-1.5
4.1
0.090
0.16
ENG15
SZY99
30
09 45 34.3
+34 30 42.8
190.595441
49.771065
R LMi
1612
-3.9
-3.9
0.320
ENG15
SZY99
31
09 45 34.3
+34 30 42.8
190.595441
49.771065
R LMi
1667
-3.4
5.1
-3.4
5.1
0.360
0.34
ENG15
SZY99
32
09 45 34.3
+34 30 42.8
190.595441
49.771065
R LMi
1665
-4.1
5.2
-4.1
5.2
0.970
0.19
ENG15
SZY99
33
13 19 27.8
+45 31 37.7
107.891341
70.773905
V CVn
1667
6.7
6.7
0.190
ENG15
SZY99
34
13 02 38
+05 11 8.4
310.357095
67.895867
RT Vir
1665
13.6
23.6
13.6
23.6
0.630
2.23
ENG15
SZY99
35
13 02 38
+05 11 8.4
310.357095
67.895867
RT Vir
1667
10.7
24.2
10.7
24.2
3.840
2.64
ENG15
SZY99
36
07 55 40.2
-28 38 54.8
245.437491
-0.147547
HU Pup
1665
34.6
35.4
34.6
35.4
0.300
0.22
ENG15
SZY99
37
07 55 40.2
-28 38 54.8
245.437491
-0.147547
HU Pup
1667
33.2
34.3
33.2
34.3
0.520
0.51
ENG15
SZY99
38
11 00 33.9
-18 19 29.6
269.269544
37.195766
R Crt
1665
1.7
2.7
1.7
2.7
1.080
0.52
ENG15
SZY99
39
11 00 33.9
-18 19 29.6
269.269544
37.195766
R Crt
1667
1.7
2.8
1.7
2.8
3.240
1
ENG15
SZY99
Non-detection table from Szymczak & Le Squeren (1999)
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Group name
Different Line detections
IRAS source
IRAS coordinates (RA, Dec)
IRAS source distance (arcsec)
IRAS flux density (F12,F25,F60,F100)
2MASS source
2MASS coordinates (RA, Dec)
2MASS source distance (arcsec)
2MASS magnituted (J,H,K)
GCVS source
GCVS coordinates (RA, Dec)
GCVS source distance (arcsec)
GCVS parameters
WISE source
WISE coordinates (RA, Dec)
WISE source distance (arcsec)
WISE magnitudes (w1, w2, w3, w4)
Akari IRC source
Akari IRC coordinates (RA, Dec)
Akari IRC source distance (arcsec)
Akari IRC fluxes (S09, S18)
Akari FIS source
Akari FIS coordinates (RA, Dec)
Akari FIS source distance (arcsec)
Akari FIS fluxes (S65, S90, S140, S160)
Continuum source
Continuum coordinates (RA, Dec)
Continuum source distance (arcsec)
Continuum parameters
Bolocam GPS
BGPS coordinates (RA, Dec)
BGPS source distance (arcsec)
BGPS parameters
EGO source
EGO coordinates (RA, Dec)
EGO source distance (arcsec)
EGO parameters
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PACS color (70-160 um)
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select MAX(oh_data.ra_hms) as ra_hms,MAX(oh_data.dec_dms) as dec_dms,MAX(oh_data.source_name) as source_name,MAX(oh_data.ra) as ra,MAX(oh_data.dec) as dec,MAX(oh_data.l) as l,MAX(oh_data.b) as b,MAX(oh_data.vlow) as vlow,MAX(oh_data.vup) as vup,MAX(oh_data.vpeak) as vpeak,MAX(oh_data.vpeak_e) as vpeak_e,MAX(oh_data.vpeak2) as vpeak2,MAX(oh_data.vpeak2_e) as vpeak2_e,MAX(oh_data.dv) as dv,MAX(oh_data.other_name) as other_name,MAX(oh_data.peak) as peak,MAX(oh_data.peak_e) as peak_e,MAX(oh_data.peak2) as peak2,MAX(oh_data.peak2_e) as peak2_e,MAX(oh_data.int) as int,MAX(oh_data.int_e) as int_e,MAX(oh_data.rms) as rms,MAX(oh_data.date) as date,MAX(oh_data.date2) as date2,MAX(oh_data.telescope_ref) as telescope_ref,MAX(oh_data.units) as units,MAX(oh_data.beam) as beam,MAX(oh_data.ref) as ref,MAX(oh_data.list_ref) as list_ref,MAX(oh_data.ascii) as ascii,MAX(oh_data.image) as image,MAX(oh_data.id) as id,MAX(oh_data.date_txt) as date_txt,MAX(oh_data.freq) as freq FROM oh_data WHERE ref ilike 'SZY99' AND detected=true AND hide=false GROUP BY ref
select oh_data.ra_hms,oh_data.dec_dms,oh_data.source_name,oh_data.ra,oh_data.dec,oh_data.l,oh_data.b,oh_data.vlow,oh_data.vup,oh_data.vpeak,oh_data.vpeak_e,oh_data.vpeak2,oh_data.vpeak2_e,oh_data.dv,oh_data.other_name,oh_data.peak,oh_data.peak_e,oh_data.peak2,oh_data.peak2_e,oh_data.int,oh_data.int_e,oh_data.rms,oh_data.date,oh_data.date2,oh_data.telescope_ref,oh_data.units,oh_data.beam,oh_data.ref,oh_data.list_ref,oh_data.ascii,oh_data.image,oh_data.id,oh_data.date_txt,oh_data.freq FROM oh_data WHERE ref ilike 'SZY99' AND detected=true AND hide=false ORDER BY detected DESC,id
