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J/PASJ/62/391     SiO and H2O masers in Stephenson 2 cluster   (Deguchi+ 2010)

SiO and H2O maser observations of red supergiants in star clusters embedded in the Galactic disk. Deguchi S., Nakashima J., Zhang Y., Chong S.S.N., Koike K., Kwok S. <Publ. Astron. Soc. Jap., 62, 391-407 (2010)> =2010PASJ...62..391D
ADC_Keywords: Associations, stellar ; Stars, giant ; Masers Keywords: Galaxy: open clusters and associations: individual (Mercer et al. (2005ApJ...635..560M) #4, #8, #13; Stephenson's #2) - masers - stars: mass-loss - stars: supergiants Abstract: We present the results of radio observations of red supergiants in a star cluster, Stephenson (1990AJ.....99.1867S)'s #2 (Cl Stephenson 2), and of candidates for red supergiants in three star clusters, Mercer et al. (2005ApJ...635..560M)'s #4, #8, and #13 ([MCM2005b] 4, [MCM2005b] 8 and [MCM2005b] 13), in the SiO and H2O maser lines. The Stephenson's #2 cluster and nearby aggregation at the southwest contain more than 15 red supergiants. Description: The observations were made with the 45m radio telescope at Nobeyama in 2006 April and 2008 April in the H2O JKK=616-523 transition at 22.235GHz, the SiO J=1-0 v=1 transition at 43.122GHz and v=2 at 42.821GHz, and the CO J=1-0 transition at 115.271GHz. Objects: ---------------------------------------------------------- RA (2000) DE Designation(s) ---------------------------------------------------------- 18 20 32 -16 03.0 Mercer 4 = [MCM2005b] 4 18 28 49 -10 55.9 Mercer 8 = [MCM2005b] 8 18 53 53 +00 37.7 Mercer 13 = [MCM2005b] 13 18 39 20 -06 01.7 Cl Stephenson 2 = RSGC 2 ---------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 86 36 Properties of observed objects in Stephenson and embedded clusters table2.dat 85 37 Observational results of the SiO maser search table3.dat 86 36 Observational results of the H2O maser search table4.dat 81 36 Other names for observed objects
See also: J/ApJ/635/560 : New star clusters discovered in GLIMPSE survey (Mercer+ 2005) J/ApJS/106/463 : SiO maser sources (Jiang+ 1996) J/PASJ/53/293 : IRAS/SiO sources toward Galactic Bulge (Deguchi+, 2001) J/PASJ/53/517 : Water maser survey of late-type stars (Takaba+, 2001) J/PASJ/54/719 : IRAS/SiO sources in the Galactic bulge (Deguchi+, 2002) J/PASJ/55/203 : SiO maser survey toward inner Galactic disk (Nakashima+, 2003) J/PASJ/55/229 : SiO maser survey of cold IRAS sources (Nakashima+, 2003) J/PASJ/56/261 : SiO maser survey in Galactic center (Deguchi+, 2004) J/PASJ/58/529 : SiO maser Survey in Galactic Bulge (Fujii+, 2006) J/PASJ/59/559 : SiO maser search off the Galactic plane (Deguchi+, 2007) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 16 A16 ---- 2MASS 2MASS name (HHMMSSss+DDMMSSs) 18- 23 A6 --- Name Object name (McN-NN or St2-NN) 25- 28 F4.2 mag Kmag K magnitude 30- 33 F4.2 mag J-H J-H colour index 35- 38 F4.2 mag H-K H-K colour index 40- 56 A17 --- MSX MSX name (GLLL.llll+BB.bbbb) 58- 60 F3.1 arcsec Sep ? Separation 2MASS-MSX 62- 66 F5.1 Jy FC ? MSX C-band (12um) flux density 68- 73 F6.3 --- [C/A] ? Flux density ratio log(FC/FA), from MSX fluxes at 12um and 8um 75- 80 F6.3 --- [E/C] ? Flux density ratio log(FE/FC), from MSX fluxes at 21um and 12um 82- 86 F5.1 km/s VSiO ? SiO LSR velocity
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 16 A16 ---- 2MASS 2MASS name (HHMMSSss+DDMMSSs) 18- 23 A6 --- Name Object name (McN-NN or St2-NN) 25- 29 F5.3 K Ta1 ?=- Antenna temperature for SiO (J=1-0 v=1, 43.122GHz) 31- 35 F5.1 km/s Vlsr1 ?=- LSR velocity for SiO (J=1-0 v=1) 37- 42 F6.3 K.km/s F1 ?=- Flux for SiO (J=1-0 v=1) 44- 48 F5.3 K e_Ta1 RMS value for SiO (J=1-0 v=1) 50- 54 F5.3 K Ta2 ?=- Antenna temperature for SiO (J=1-0 v=2, 42.821GHz) 56- 60 F5.1 km/s Vlsr2 ?=- LSR velocity for SiO (J=1-0 v=2) 62- 66 F5.3 K.km/s F2 ?=- Flux (SiO J=1-0 v=2) 68- 72 F5.3 K e_Ta2 RMS value for SiO (J=1-0 v=2) 74- 85 A12 --- ObsDate Observation date, in YYYY/MM/DD.d unit
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 16 A16 ---- 2MASS 2MASS name (HHMMSSss+DDMMSSs) 18- 23 A6 --- Name Object name (McN-NN or St2-NN) 25- 29 F5.3 K Ta1 ?=- Antenna temperature for H2O (616-523, 22.235GHz) 30 A1 --- n_Ta1 [a] contamination from Mc13-5 31- 35 F5.1 km/s Vlsr1 ?=- LSR velocity for H2O (616-523) 36 A1 --- n_Vlsr1 [a] contamination from Mc13-5 38- 43 F6.3 K.km/s F1 ?=- Flux for H2O (616-523) 44 A1 --- n_F1 [a] contamination from Mc13-5 46- 50 F5.3 K e_Ta1 RMS value for H2O (616-523) 52- 56 F5.3 K Ta2 ?=- Antenna temperature for H2O (second peak) 57 A1 --- n_Ta2 [ab] contamination from Mc13-5(a) or Mc13-4(b) 59- 62 F4.1 km/s Vlsr2 ?=- LSR velocity for H2O (second peak) 63 A1 --- n_Vlsr2 [ab] contamination from Mc13-5(a) or Mc13-4(b) 65- 69 F5.3 K.km/s F2 ?=- Flux for H2O (second peak) 70 A1 --- n_F2 [ab] contamination from Mc13-5(a) or Mc13-4(b) 72- 73 I2 K e_Ta2 ?=- RMS value for H2O (second peak) 75- 86 A12 --- ObsDate Observation date, in YYYY/MM/DD.d unit
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 16 A16 --- 2MASS 2MASS name (HHMMSSss+DDMMSSs) 18- 23 A6 --- Name Object name (McN-NN or St2-NN) 25- 26 I2 --- D07 ?=- Davis et al. (2007, Cat. J/ApJ/671/781) number, Cl* Stephenson 2 DFK NN in Simbad 28- 44 A17 --- MSX MSX name (GLLL.llll+BB.bbbb) 46- 76 A31 --- ONames Other name(s) 77- 81 A5 --- Notes Notes (1)
Note (1): 'a' for Ando et al. (2002ApJ...574..187A) sources.
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 30-Apr-2010
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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