J/ApJS/211/15 SiO and H2O maser survey toward AGB & post-AGB stars (Yoon+, 2014)
SiO and H2O maser survey toward post-asymptotic giant branch and asymptotic
giant branch stars.
Yoon D.-H., Cho S.-H., Kim J., Yun Y.J., Park Y.-S.
<Astrophys. J. Suppl. Ser., 211, 15 (2014)>
=2014ApJS..211...15Y 2014ApJS..211...15Y
ADC_Keywords: Masers ; Radio lines ; Stars, giant ; Stars, late-type
Keywords: circumstellar matter; masers; radio lines: stars;
stars: AGB and post-AGB; stars: late-type
Abstract: We performed simultaneous observations of SiO(v=1,2),
29SiO(v=0,J=1-0) and H2O(616-523) maser lines toward 143 AGB
and 164 post-asymptotic giant branch (AGB) stars in order to
investigate how evolutionary characteristics from AGB to post-AGB
stars appear in both SiO and H2O maser emissions. The observations
were carried out from 2011 February to 2012 March using the Korean
VLBI Network single-dish telescopes. We have detected SiO and/or H2O
maser emission from 21 sources out of 164 post-AGB stars including 12
new detections. Of 143 AGB stars, we detected SiO and/or H2O maser
emission from 44 stars including 24 new detections. SiO(v=2,J=1-0)
maser emission without a SiO(v=1) maser was detected from 7 sources
among 14 SiO-detected post-AGB stars, and the intensity of the
SiO(v=2,J=1-0) maser tends to be much stronger than that of SiO(v=1),
which is different from those of AGB stars. This may be related to the
development of hot dust shells according to the evolutionary processes
of post-AGB stars. We also found that both SiO and H2O masers were
detected in the blue group (LI, or Left of IRAS), while only the H2O
maser was detected in the red group (RI, or Right of IRAS) for
post-AGB stars. These different detection rates between SiO and H2O
masers may originate from the different abundances of masing molecules
in the circumstellar envelope according to the different mass and
expansion velocity between LI and RI regions together with their
evolutionary stages.
Description:
Simultaneous observations of SiO(v=1,2,J=1-0) 29SiO(v=0,J=1-0)
(43.122080GHz, 42.820587GHz and 42.879916GHz) and H2O(616-523)
(22.235080GHz) maser lines were performed with three KVN (Korean VLBI
Network) 21m single-dish radio telescopes (at Yonsei University
campus, Ulsan University campus, and Tamna University campus) toward
the 164 post-AGB and 143 AGB stars. Observations were carried out from
2011 February to 2012 March.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 110 164 List of post-AGB sources
table4.dat 104 143 List of AGB sources
table5.dat 134 3 Peak values for post-AGB stars with both
SiO(J=1-0) and H2O maser detections
table7.dat 94 11 Peak values for post-AGB stars with SiO-only
maser detections
table9.dat 146 7 Results for post-AGB stars with H2O-only
maser detections
table10.dat 134 12 Peak values for AGB stars with both
SiO(J=1-0) and H2O maser detections
table12.dat 94 28 Peak values for AGB stars with SiO-only
maser detections
table14.dat 146 4 Results for AGB stars with H2O-only
maser detections
table15.dat 60 143 Results of both SiO(J=1-0) and H2O
undetected post-AGB stars
table16.dat 60 99 Results of both SiO(J=1-0) and H2O
undetected AGB stars
refs.dat 187 67 References
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See also:
B/vsx : AAVSO International Variable Star Index VSX (Watson+, 2006-2014)
B/mk : Catalogue of Stellar Spectral Classifications (Skiff, 2009-2014)
B/gcvs : General Catalogue of Variable Stars (Samus+ 2007-2013)
VI/135 : All-sky spectrally matched Tycho2 stars (Pickles+, 2010)
III/254 : 2nd Cat. of RVs with Astrometric Data (Kharchenko+, 2007)
III/249 : Stellar radial velocities bibliographic catalog (Malaroda+, 2006)
III/231 : The Tycho-2 Spectral Type Catalog (Wright+, 2003)
III/213 : General Catalog of mean radial velocities (Barbier-Brossat+, 2000)
III/206 : 13th General Catalogue of MK Spectral Classification (Buscombe 1998)
V/68 : Stellar Maser Observations (Benson+ 1990)
II/125 : IRAS Point Sources catalogue (PSC), Version 2.0 (IPAC 1986)
J/PASJ/64/4 : SiO maser survey of nearby red variables (Deguchi+, 2012)
J/MNRAS/418/1689 : Red MSX water maser and ammonia emissions (Urquhart+, 2011)
J/PASJ/62/525 : SiO maser survey off the Galactic Plane (Deguchi+, 2010)
J/A+A/507/795 : The RMS survey: water masers of YSOs (Urquhart+, 2009)
J/PASJ/59/1185 : Water maser in galactic IRAS sources (Sunada+, 2007)
J/PASJ/59/559 : SiO maser search off the Galactic plane (Deguchi+, 2007)
J/ApJ/669/446 : Observations of SiO masers (Nakashima+, 2007)
J/ApJ/658/1096 : H2O maser classification (Deacon+, 2007)
J/AN/328/889 : Mean Radial Velocities of open clusters (Kharchenko+, 2007)
J/A+A/474/891 : 13CO obs. of YSOs in South Gal. plane (Urquhart+, 2007)
J/A+A/469/799 : Torun cat. of post-AGB and related objects (Szczerba+, 2007)
J/MNRAS/369/783 : RVs + distances of carbon stars (Menzies+, 2006)
J/A+A/458/173 : Optical spectroscopy of 253 IRAS sources (Suarez+, 2006)
J/PASJ/56/765 : SiO maser survey of IRAS sources (Deguchi+, 2004)
J/PASJ/55/229 : SiO maser survey of cold IRAS sources (Nakashima+, 2003)
J/A+A/399/1083 : Outer Galaxy IRAS sources and 12CO emission (Kerton+, 2003)
J/A+A/390/501 : Millimetre obs. of carbon stars. I. (Groenewegen+, 2002)
J/PASJ/54/719 : IRAS/SiO sources in the Galactic bulge (Deguchi+, 2002)
J/AJ/123/2772 : OH-selected AGB and post-AGB objects. I. (Sevenster+, 2002)
J/A+A/368/845 : Arcetri Cat. of H2O maser sources. (Valdettaro+, 2001)
J/PASJ/53/293 : IRAS/SiO sources toward Galactic Bulge (Deguchi+, 2001)
J/A+AS/127/185 : SiO masers in OH/IR stars, proto-PN and PN (Nyman+ 1998)
J/A+A/296/727 : Semiregular variables H2O maser (Szymczak+, 1995)
J/A+A/277/453 : OH maser survey of cool IRAS sources (David+ 1993)
J/A+A/275/163 : Luminous Carbon stars in Galactic Plane (Kastner+ 1993)
J/A+AS/93/121 : CO emission from a sample of IRAS sources (Nyman+ 1992)
Byte-by-byte Description of file: table[34].dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq Running sequence number
5- 19 A15 --- Name Source name
21- 23 A3 --- OType Source type (only for table 4) (1)
25- 26 I2 h RAh IRAS PSC hour of right ascension (J2000) (2)
28- 29 I2 min RAm IRAS PSC minute of right ascension (J2000)
31- 35 F5.2 s RAs IRAS PSC second of right ascension (J2000)
37 A1 --- DE- IRAS PSC sign of declination (J2000) (2)
38- 39 I2 deg DEd IRAS PSC degree of declination (J2000) (2)
41- 42 I2 arcmin DEm IRAS PSC arcminute of declination (J2000)
44- 47 F4.1 arcsec DEs IRAS PSC arcsecond of declination (J2000)
49- 55 F7.2 km/s RV [-143/205]? Radial velocity of central star
57- 58 A2 --- r_RV ? RV reference (see refs.dat file)
60- 68 A9 --- SpT MK spectral type (3)
70- 75 F6.1 d Per [23/1422]? Period (3)
77 A1 --- l_SH2O Limit flag on SH2O
79- 84 F6.2 Jy SH2O [0.1/160]? Maser peak flux density of
H2O(616-523; 22GHz)
86- 87 A2 --- r_SH2O ? SH2O reference (see refs.dat file)
89 A1 --- l_SSiO Limit flag on SSiO
91- 96 F6.2 Jy SSiO [0.1/175]? Maser peak flux density of
SiO(v=1, J=1-0)
98 A1 --- n_SSiO [n] n indicates the SiO(v=1,J=2-1) transition
100-101 A2 --- r_SSiO SSiO reference (see refs.dat file)
103-110 A8 --- Ref Source reference(s) (see refs.dat file)
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Note (1): Source type from SIMBAD as follows:
Mi* = variable star of Mira Cet type,
sr* = semi-regular valiable star,
Ir* = irregular variable star,
IR = infrared source,
OH* = star with an envelope of OH/IR type,
Sy* = symbiotic star,
Be* = Be star.
Note (2): From NASA/IPAC Infrared Science Archive:
http://irsa.ipac.caltech.edu/cgi-bin/Gator/nph-dd?catalog=iraspsc
Note (3): Spectral type and period reference from:
* Samus et al. 2009 (Cat. B/gcvs);
* Buscombe 1998 (Cat. III/206);
* Skiff 2010 (Cat. B/mk);
* Wright et al. 2003 (Cat. III/231);
* Watson et al. 2012 (Cat. B/vsx);
* Bujarrabal (1994A&A...285..953B 1994A&A...285..953B);
* Pickles & Depagne 2010 (Cat. VI/135).
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Byte-by-byte Description of file: table5.dat table10.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq Running sequence number
5- 19 A15 --- Name Source name
21- 25 F5.3 K TSiO1 28SiO(J=1-0,v=1) (43.12GHz) peak temperature
27 A1 --- f_TSiO1 [a] new detection
29 A1 --- l_TSiO2 Limit flag on TSiO2
30- 33 F4.2 K TSiO2 28SiO(J=1-0,v=2) (42.82GHz) peak temperature
35 A1 --- f_TSiO2 [a] new detection
37 A1 --- l_T29SiO Limit flag on T29SiO
39- 42 F4.2 K T29SiO 29SiO(J=1-0,v=0) (42.88GHz) peak temperature
44 A1 --- f_T29SiO [a] new detection
46- 49 F4.2 K TH2O1 ? H2O (22.235GHz) 1st peak temperature
51- 54 F4.2 K TH2O2 ? H2O (22.235GHz) 2nd peak temperature
56- 59 F4.2 K TH2O3 ? H2O (22.235GHz) 3rd peak temperature
60 A1 --- f_TH2O1 [a] new detection
62- 67 F6.2 km/s VSiO1 Peak VLSR of 28SiO(J=1-0,v=1)
69- 74 F6.2 km/s VSiO2 ? Peak VLSR of 28SiO(J=1-0,v=2)
76- 81 F6.2 km/s V29SiO ? Peak VLSR of 29SiO(J=1-0,v=0)
83- 88 F6.2 km/s VH2O1 ? First peak VLSR of H2O (22.235GHz)
90- 95 F6.2 km/s VH2O2 ? Second peak VLSR of H2O (22.235GHz)
97-102 F6.2 km/s VH2O3 ? Third peak VLSR of H2O (22.235GHz)
104-107 F4.2 --- TrSiO [0.3/4.5]? Peak antenna temperature ratios
between SiO(v=2) and (v=1) maser lines
109-112 F4.2 --- TrH2O1 ? First temperature ratio H2O/SiO(v=1)
114-117 F4.2 --- TrH2O2 ? Second temperature ratio H2O/SiO(v=1)
119-122 F4.2 --- TrH2O3 ? Third temperature ratio H2O/SiO(v=1)
124-131 A8 "DD/MM/YY" Date Date of the observation
133-134 A2 --- Tel Telescope used for the observation (G2)
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Byte-by-byte Description of file: table7.dat table12.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq Running sequence number
5- 19 A15 --- Name Source name
21 A1 --- l_TSiO1 Limit flag on TSiO1
23- 27 F5.3 K TSiO1 28SiO(J=1-0,v=1) (43.12GHz) peak temperature
29 A1 --- f_TSiO1 [ab] new or smoothed detection (G1)
31 A1 --- l_TSiO2 Limit flag on TSiO2
33- 37 F5.3 K TSiO2 28SiO(J=1-0,v=2) (42.82GHz) peak temperature
39 A1 --- f_TSiO2 [ab] new or smoothed detection (G1)
41 A1 --- l_T29SiO Limit flag on T29SiO
43- 46 F4.2 K T29SiO 29SiO(J=1-0,v=0) (42.88GHz) peak temperature
48 A1 --- l_TH2O Limit flag on TH2O
50- 53 F4.2 K TH2O H2O (22.235GHz) peak temperature
55- 60 F6.2 km/s VSiO1 ? Peak VLSR of 28SiO(J=1-0,v=1) (43.12GHz)
62- 67 F6.2 km/s VSiO2 ? Peak VLSR of 28SiO(J=1-0,v=2) (42.82GHz)
69- 74 F6.2 km/s V29SiO ? Peak VLSR of 29SiO(J=1-0,v=0) (42.88GHz)
76- 79 F4.2 --- TrSiO [0.4/6.4]? Peak antenna temperature ratios
between SiO(v=2) and (v=1) maser lines
81- 91 A11 "date" Date Date of the observation
93- 94 A2 --- Tel Telescope used for the observation (G2)
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Byte-by-byte Description of file: table9.dat table14.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- Seq Running sequence number
5- 19 A15 --- Name Source name
21 A1 --- l_TSiO1 Limit flag on TSiO1
22- 25 F4.2 K TSiO1 28SiO(J=1-0,v=1) (43.12GHz) peak temperature
27 A1 --- l_TSiO2 Limit flag on TSiO2
28- 31 F4.2 K TSiO2 28SiO(J=1-0,v=2) (42.82GHz) peak temperature
33 A1 --- l_T29SiO Limit flag on T29SiO
34- 37 F4.2 K T29SiO 29SiO(J=1-0,v=0) (42.88GHz) peak temperature
39- 42 F4.2 --- TH2O [0.07/1.6] H2O (22.235GHz) peak temperature
44- 46 A3 --- f_TH2O [ab, ] new or smoothed detection (G1)
48-117 A70 km/s Vlsr VLSR peak
119-123 F5.2 K.km/s IntTA [0.08/19.3] Integrated antenna temperature
125-131 F7.2 km/s <Vlsr> Mean LSR velocity
133-143 A11 "date" Date Date of the observation
145-146 A2 --- Tel Telescope used for the observation (G2)
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Byte-by-byte Description of file: table1[56].dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq [1/164] Running sequence number
5- 19 A15 --- Name Source name
21 A1 --- l_SiO1 Limit flag on SiO1 (1)
22- 26 F5.3 K SiO1 rms limit of 28SiO(J=1-0,v=1) (43.12GHz)
28 A1 --- l_SiO2 Limit flag on SiO2 (1)
29- 33 F5.3 K SiO2 rms limit of 28SiO(J=1-0,v=2) (42.82GHz)
35 A1 --- l_SiO29 Limit flag on SiO29 (1)
36- 40 F5.3 K SiO29 rms limit of 29SiO(J=1-0,v=1)
42 A1 --- l_H2O Limit flag on H2O (1)
43- 47 F5.3 K H2O rms limit of H2O (22.235GHz) peak temperature
49- 57 A9 "DD/MMM/YY" Date Date of observation
59- 60 A2 --- Tel Telescope used for the observation (G2)
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Note (1): Upper limits are given as three rms.
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- Ref Reference code
4- 22 A19 --- BibCode Bibcode
24- 48 A25 --- Aut Author's name(s)
50-187 A138 --- Com Comment
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Global notes:
Note (G1): Flag as follows:
a = New detection
b = rms: 0.016K (Hanning smoothed).
Note (G2): Telescope of Korean VLBI Network used:
US=Ulsan, YS=Yonsei, or TN=Tamna
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History:
From electronic version of the journal
(End) Emmanuelle Perret [CDS] 09-Apr-2014