J/PASJ/55/229 SiO maser survey of cold IRAS sources (Nakashima+, 2003)
SiO maser survey of cold IRAS sources.
Nakashima J., Deguchi S.
<Publ. Astron. Soc. Jap., 55, 229 (2003)>
=2003PASJ...55..229N 2003PASJ...55..229N
ADC_Keywords: Masers ; Infrared sources ; Radial velocities ; Radio lines
Keywords: galaxy: kinematics and dynamics - masers - stars: AGB and post-AGB -
stars: late-type
Abstract:
We present the results of observations of cold IRAS sources in the
Galactic disk area, -10°<l<100° and |b|<5°, in the SiO
J=1-0, v=1 and 2 maser lines. SiO masers were detected in 51 out of
143 observed sources; 45 were new detections in SiO masers. The
selected IRAS sources were objects with dust temperatures of between
160 and 280K.
Description:
Simultaneous observations in the SiO J=1-0, v=1 and 2 transitions at
43.122 and 42.821GHz, respectively, were made with the 45-m radio
telescope at Nobeyama during the periods of 2000 April-May and 2001
March. In addition to the SiO lines, observations in the H2O,
6(1,6)-5(2,3) transition at 22.235GHz were made for the SiO maser
emitters, which were found during the present SiO observations.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 80 143 IRAS data
table2.dat 82 51 List of detections
table3.dat 37 93 List of non-detections
table5.dat 31 20 H2O non-detections
table6.dat 64 70 Detected masers
refs.dat 48 13 References
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See also:
II/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986)
J/A+A/391/967 : H2O & SiO masers in Galactic center (Sjouwerman+, 2002)
J/A+A/393/115 : SiO maser survey of late-type stars (Messineo+, 2002)
J/A+AS/127/185 : SiO masers in OH/IR stars, proto-PN and PN (Nyman+ 1998)
J/ApJS/106/463 : SiO maser sources (Jiang+ 1996)
J/PASJ/53/293 : IRAS/SiO sources toward Galactic Bulge (Deguchi+, 2001)
J/PASJ/54/719 : IRAS/SiO sources in the Galactic bulge (Deguchi+, 2002)
J/PASJ/55/203 : Inner Galactic disk SiO maser survey (Nakashima+, 2003)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- IRAS IRAS name
12- 17 F6.2 deg GLON Galactic longitude
19- 23 F5.2 deg GLAT Galactic latitude
25- 32 F8.3 Jy F12um Flux density at 12um
34- 37 F4.2 --- C12 C12 (log(F25/F12)) colour index
39- 43 F5.2 --- C23 C23 (logF60/F25)) colour index
45- 48 F4.1 kpc DL Luminosity distance
50- 55 F6.1 km/s Vlsr ? (SiO) LSR velocity
57- 72 A16 --- MSX MSX name (Cat. V/114)
74- 75 I2 arcsec Sep ? Separation between IRAS and MSX positions
77- 80 A4 --- Flag 2MASS flags (1)
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Note (1): Flags as follows:
ps = point sources
sf = star forming region with extendedH II regions
sf? = possible star forming region
no = no clear counterpart
ppn? = extended sources with PPN-like morphology
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- IRAS IRAS name
11- 12 A2 --- n_IRAS [* ] Origin of the source (1)
14- 19 F6.1 km/s Vlsr1 ? J=1-0, v=1 LSR radial velocity at the
intensity peak (43.122GHz)
20 A1 --- u_Vlsr1 [)] ): dubious detections
22- 27 F6.3 K Ta1 ? J=1-0, v=1 antenna temperature (43.122GHz)
28 A1 --- u_Ta1 [)] ): dubious detections
30- 35 F6.3 K.km/s S1 ? J=1-0, v=1 integrated flux
36 A1 --- u_S1 [)u] Uncertainty flag on S1 (2)
38- 42 F5.3 K rms1 J=1-0, v=1 rms
44- 49 F6.1 km/s Vlsr2 ? J=1-0, v=2 LSR radial velocity at the
intensity peak (42.821GHz)
51- 56 F6.3 K Ta2 ? J=1-0, v=2 antenna temperature (42.821GHz)
58- 63 F6.3 K.km/s S2 ? J=1-0, v=2 integrated flux
65- 69 F5.3 K rms2 J=1-0, v=2 rms
71- 82 A12 --- Date Observation date (YYYY/MM/DD.d)
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Note (1): Origin of the source, as follows:
* = Sources observed at MSX position (see Cat. V/114)
** = Object reported by Nakashima & Deguchi (2000, J/other/PASJ/55.203)
Note (2): Uncertainty flag on S1 as follows:
) = dubious detections
u = This value is unexpectedly low because of artificial concave at
just right side of the maser
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- IRAS IRAS name
12 A1 --- n_IRAS [*] Sources observed at MSX positions
14- 18 F5.3 K rms1 J=1-0, v=1 rms
20- 24 F5.3 K rms2 J=1-0, v=2 rms
26- 37 A12 --- Date Observation date (YYYY/MM/DD.d)
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Table 4. H2O detections.
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IRAS name DeltaV Vc Vp Tp Flux rms Obs. date
km/s km/s K K K.km/s K (yyyy/mm/dd.d)
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IRAS 19067+0811 27.8 62.8 76.7 1.243 8.482 0.053 2000/05/28.2
48.9 0.897 7.239
IRAS 19069+0916 36.4 -7.5 10.7 2.328 35.166 0.049 2000/05/28.2
-25.7 1.675 8.801
IRAS 19312+1950 17.4 17.4 2.339 7.455 0.062 2000/06/01.0
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- IRAS IRAS name
14- 18 F5.3 K rms rms
20- 31 A12 --- Date Observation date (YYYY/MM/DD.d)
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- IRAS IRAS name
13- 19 F7.2 km/s VlsrOH ? OH (1612MHz) LSR velocity
20 A1 --- n_VlsrOH [n]
22- 25 F4.1 km/s DVOH ? OH (1612MHz) δV
27- 36 A10 --- r_VlsrOH Reference for VlsrOH, separated by comma
37- 41 F5.1 km/s VlsrH2O ? H2O LSR velocity
42 A1 --- n_VlsrH2O [y]
44- 47 A4 --- r_VlsrH2O Reference for VlsrH2O, separated by comma
49- 54 F6.1 km/s VlsrSiO ? SiO, J=1--0, v=1,2 LSR velocity
57- 64 A8 --- r_VlsrSiO Reference for VlsrSiO, separated by comma
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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 I2 --- Ref Reference number
4- 22 A19 --- BibCode BibCode
24- 53 A30 --- Aut Author's name
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History:
From electronic version of the journal
(End) James Marcout, Patricia Vannier [CDS] 15-Nov-2005