Search
References
Cross-match
Download
Acknowledgement
☰
Display data from paper
Data:
OH
SZY95A - A survey of main-line OH maser emission from semiregular variables.
Interferometry data
Short title
: Szymczak et al. (1995A)
Authors
: Szymczak, M. Le Squeren, A. M. Sivagnanam, P. Tran Minh, F. Fournier, A.
Journal
: Astronomy and Astrophysics, v.297, p.494
Bibcode
:
1995A&A...297..494S
Abstract
We have made a high sensitivity (~0.15Jy) search in the OH main-lines for maser emission from a sample of 181 semiregular variables. OH emission was observed towards five stars. Two new OH lines were detected and one tentatively. About 10% of semiregulars with distances less than 300pc have associated OH maser emission. The OH semiregulars show much redder near and far infrared colors than similar non-OH stars. On the average, their mass loss rates and OH luminosities are slightly lower than in the long period Mira variables. Basing on the optical and infrared properties of the semiregulars and long period variables we confirmed that properties of the SRa stars are intermediate between those of SRb and Mira variables. The occurrence of strongly polarized, low luminosity OH main-line maser only, together with relatively low efficiency of pumping by the infrared photons, provides evidence that the semiregulars are less evolved than the Mira-type variables. This can support the existence of an evolutionary sequence of SRb-SRa-Mira variables. However, the expansion velocities of some OH semiregulars are higher than those observed in most type I OH Miras and their pulsational properties may suggest that they are in a peculiar evolutionary phase.
Comments:
Velocity resolution: 0.56 km/s
Upper limit for non-detections: 0.15 Jy (3σ)
Download as
:
Table (CSV)
View paper statistics
Detection table from Szymczak et al. (1995A)
Export table to csv
Hide
/
Show
individual components
ID
Obs. RA
Obs. Dec
l
b
Source name
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
07 55 40.4
-28 38 56
245.438221
-0.146964
IRAS 07536-2830
1665
34.3
34.3
0.300
ENG15
SZY95A
2
07 55 40.4
-28 38 56
245.438221
-0.146964
IRAS 07536-2830
1667
34.3
34.3
0.700
ENG15
SZY95A
3
11 00 33.5
-18 19 27
269.267575
37.195651
IRAS 10580-1803
1665
1.7
1.7
2.500
ENG15
SZY95A
4
11 00 33.5
-18 19 27
269.267575
37.195651
IRAS 10580-1803
1667
1.7
19.7
1.7
19.7
4.500
0.2
ENG15
SZY95A
5
13 02 38.1
+05 11 08
310.358355
67.895706
IRAS 13001+0527
1665
11.2
23.6
11.2
23.6
0.300
1.9
ENG15
SZY95A
6
13 02 38.1
+05 11 08
310.358355
67.895706
IRAS 13001+0527
1667
10.8
24.0
10.8
24.0
3.300
2.6
ENG15
SZY95A
7
13 49 2.4
-28 22 05
318.023907
32.809984
IRAS 13462-2807
1665
33.6
36.3
33.6
36.3
4.900
9.9
ENG15
SZY95A
8
13 49 2.4
-28 22 05
318.023907
32.809984
IRAS 13462-2807
1667
36.1
43.4
36.1
43.4
32.000
7
ENG15
SZY95A
9
14 24 11.2
+25 42 15
34.277868
69.214385
IRAS 14219+2555
1665
-0.2
-0.2
0.400
ENG15
SZY95A
10
22 05 41.6
+35 20 52
88.713383
-16.285059
IRAS 22035+3506
1667
1.4
1.4
0.130
ENG15
SZY95A
Non-detection table from Szymczak et al. (1995A)
Export table to csv
Hide
/
Show
individual components
Display associated data
IRAS source
IRAS coordinates (RA, Dec)
IRAS flux density (F12,F25,F60,F100)
2MASS source
2MASS coordinates (RA, Dec)
2MASS magnituted (J,H,K)
Variable star
Variable star parameters
Star Formation Region name
Star Formation Region parameters
WISE source
WISE coordinates (RA, Dec)
WISE magnitudes (w1, w2, w3, w4)
Akari IRC source
Akari IRC coordinates (RA, Dec)
Akari IRC fluxes (S09, S18)
Akari FIS source
Akari FIS coordinates (RA, Dec)
Akari FIS fluxes (S65, S90, S140, S160)
View images
DSS (optical)
2MASS (JHK)
WISE (4-22 um)
IRAC (3-8 um)
GLIMPSE 360 (3.6-4.5 um)
PACS color (70-160 um)
SPIRE color (250-500 um)
AKARI color (60-160 um)
NVSS (1.4 GHz)
SDSS (optical+NIR)
Image size
:
arcsec (default is 120 arcsec)
Get selected data
X
Position of H
2
O maser detection
DSS colored
2MASS colored
WISE colored
SDSS color
IRAC color I1,I2,I4
GLIMPSE 360
PACS color (70-160 um)
SPIRE color (250-500 um)
NVSS (1.4GHz)
UKIDSS K
2MASS K
