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J/PASJ/64/4      SiO maser survey of nearby red variables       (Deguchi+, 2012)

Kinematics of red variables in the Solar neighborhood. I. Basic data obtained by an SiO maser survey Deguchi S., Sakamoto T., Hasegawa T. <Publ. Astron. Soc. Jap., 64, 4 (2012)> =2012PASJ...64....4D
ADC_Keywords: Stars, nearby ; Stars, variable ; Masers ; Radial velocities Keywords: Galaxy: disk - Galaxy: kinematics and dynamics - stars: AGB and post-AGB Abstract: In order to study the streaming motions of miras in the Solar neighborhood, we newly surveyed 379 red variables in the SiO maser lines at 42.821 and 43.122GHz with the Nobeyama 45m radio telescope. Accurate radial velocities were obtained for 229 (220 new) detected stars. The sample was selected from optical variables found by new automated surveys: the Northern Sky Variability Survey and the All Sky Automated Survey. The new sample consists of "bluer" objects compared with those observed in the previous SiO surveys. The distances to the objects were estimated using the period-luminosity relation, and they are mostly less than 3kpc from the Sun. The longitude-velocity diagram reveals three prominent groups of stars deviant from circular galactic rotation with a flat rotation curve. In addition to the Hercules group of stars, which was studied before, we found two new deviant groups: one toward the Perseus arm and the other toward the Sagittarius arm. These two groups both exhibit anomalous motions toward the galactic center, which seem to be consistent with the noncircular motions of these spiral arms found in recent VLBI proper-motion measurements for maser gas clumps. Description: The observations were made with the 45m radio telescope at Nobeyama in 2009 March, 2010 March-May, and 2010 December-2011 January in the SiO J=1-0 v=1 and 2 transitions at 43.122 and 42.821GHz, respectively. A few data taken before 2009 were also added for the present analysis. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 89 229 Observational results of SiO masers table2.dat 39 150 Negative results for the SiO J=1-0 v=1 and 2 lines table3.dat 69 12 Observational results for additional SiO lines table4.dat 103 379 Infrared properties of the observed objects table5.dat 67 39 Optical and infrared properties of Per and Sgr groups of stars
See also: II/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986) II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003) J/ApJS/106/463 : SiO maser sources (Jiang+ 1996) J/A+AS/127/185 : SiO masers in OH/IR stars, proto-PN and PN (Nyman+ 1998) J/A+AS/132/211 : Interstellar SiO sources (Harju+ 1998) J/A+A/391/967 : H2O and SiO masers in the Galactic center (Sjouwerman+, 2002) J/A+A/393/115 : 86GHz SiO maser survey of late-type stars (Messineo+, 2002) J/A+A/418/103 : 86GHz SiO maser survey in the Inner Galaxy (Messineo+, 2004) J/A+A/435/575 : 86GHz SiO maser survey of late-type stars (Messineo+, 2005) J/ApJ/669/446 : Observations of SiO masers (Nakashima+, 2007) 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 : 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/56/765 : SiO maser survey of IRAS sources (Degychi+, 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) J/PASJ/62/391 : SiO and H2O maser in Galactic disk clusters (Deguchi+, 2010) J/PASJ/62/525 : SiO maser survey off the Galactic Plane (Deguchi+, 2010) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 16 A16 --- 2MASS 2MASS name (HHMMSSss+DDMMSSs) 18 A1 --- f_2MASS [*] * indicates additional detections (1) 20- 22 A3 --- r_2MASS References of previous detections (2) 25- 30 F6.3 K Ta1 ?=- Antenna temperature at the intensity peak for SiO J=1-0 v=1 maser line 32- 37 F6.1 km/s Vlsr1 ?=- LSR radial velocity for SiO J=1-0 v=1 maser line 39- 45 F7.3 K.km/s LF1 ?=- Integrated line intensity for SiO J=1-0 v=1 maser line 47- 51 F5.3 K rms1 Root mean square of the noise level for SiO J=1-0 v=1 maser line 53- 58 F6.3 K Ta2 ?=- Antenna temperature at the intensity peak for SiO J=1-0 v=2 maser line 60- 65 F6.1 km/s Vlsr2 ?=- LSR radial velocity for SiO J=1-0 v=2 maser line 67- 72 F6.3 K.km/s LF2 ?=- Integrated line intensity for SiO J=1-0 v=2 maser line 74- 78 F5.3 K rms2 Root mean square of the noise level for SiO J=1-0 v=2 maser line 80- 89 A10 "YYYY/MM/DD" ObsDate Observation date
Note (1): Additional detections in the 28SiO v=0 or v=3, or 29SiO v=0 J=1-0 line, in table3.dat. Note (2): References as follows: 1 = previous detection of the SiO J=2-1 v=1 line (Haikala, Nyman, and Forsstrom, 1994A&AS..103..107H). 2 = previous detection of the SiO J=1-0 v=1 and 2 line by Deguchi et al. (2010, Cat. J/PASJ/62/525) 3 = Deguchi et al. (2000ApJS..130..351D) 4 = Jiang, Deguchi, and Ramesh (1999PASJ...51...95J) 5 = Cho, Kaifu, and Ukita (1996AJ....111.1987C) 6 = Zuckerman (1979ApJ...230..442Z) 7 = Hall et al., (1990MNRAS.243..480H) 8 = Kim et al. (2010ApJS..188..209K)
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 16 A16 --- 2MASS 2MASS name (HHMMSSss+DDMMSSs) 18- 22 F5.3 K rms1 Root mean square of the noise level for SiO J=1-0 v=1 maser line 24- 28 F5.3 K rms2 Root mean square of the noise level for SiO J=1-0 v=2 maser line 30- 39 A10 "YYYY/MM/DD" Obs.date Observation date
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 16 A16 --- 2MASS 2MASS name (HHMMSSss+DDMMSSs) 18- 34 A17 --- Trans Transition 36- 40 F5.3 K Ta ?=- Antenna temperature at the intensity peak for SiO J=1-0 v=1 maser line 42- 46 F5.1 km/s Vlsr ?=- LSR radial velocity for SiO J=1-0 v=1 maser line 48- 52 F5.3 K.km/s LF ?=- Integrated line intensity for SiO J=1-0 v=1 maser line 54- 58 F5.3 K rms Root mean square of the noise level for SiO J=1-0 v=1 maser line 60- 69 A10 "YYYY/MM/DD" Obs.date Observation date
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 16 A16 --- 2MASS 2MASS name (HHMMSSss+DDMMSSs) 18- 21 I4 d Per Period 23- 24 A2 --- n_Per [+* 11] other type (3) 26- 31 F6.3 mag Kmag 2MASS K magnitude 33- 37 F5.3 mag H-K 2MASS H-K colour index 38- 42 F5.1 Jy F12 IRAS flux density at 12um 44- 49 F6.3 --- C12 ? IRAS C12 (log(F25um/F12um)) colour index 51- 56 F6.1 km/s Vlsr ? LSR velocity from SiO line 58- 80 A23 --- IRAS/MSX IRAS name (RHHMMm+DDMM for IRAS Reject catalog II/274), or MSX 83 A1 --- n_IRAS/MSX [b] b for IRAS point source reject catalog 85-103 A19 --- Com Comments (4)
Note (3): Notes as follows: + = Semiregular variables (SR+L) * = Other type (MISC) 11 = Parimucha (2003CoSka..33...99P) Note (4): References in the comments are: 1 = Lewis (1997AJ....114.1602L) 2 = Crocker & Hagen (1983A&AS...54..405C) 3 = Engels, Schmid-Burgk, and Walmsley (1988A&A...191..283E) 4 = Eder, Lewis, and Terzian (1988ApJS...66..183E) 5 = Engels & Lewis (1996A&AS..116..117E) 6 = Lewis (1994, Cat. J/ApJS/93/549) 7 = Lewis, Eder, and Terzian (1990ApJ...362..634L) 8 = Lewis & Engels (1988Natur.332...49L) 9 = Benson & Littel-Marenin (1996ApJS..106..579B) 10 = Hall et al. (1990MNRAS.243..480H) 12 = Cho & Kim (2010ApJ...719..126C) 13 = Lewis, David, and Le Squeren (1995, Cat. J/A+AS/111/237)
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1 A1 --- Group [PS] Perseus or Sgr group 3- 18 A16 --- 2MASS 2MASS name (HHMMSSss+DDMMSSs) 20- 22 I3 d Per Period 24- 27 A4 --- Type Type (M=Mira or SR+L=semiregular variable) 29- 34 F6.3 mag Rmag R magnitude 36- 40 F5.3 mag Ramp Amplitude in R band 42- 46 F5.3 mag Kmag 2MASS K magnitude 48- 52 F5.3 mag e_Kmag rms uncertainty on Kmag 53 A1 --- n_Kmag [+] Note on Kmag (2) 55 A1 --- q_Kmag [A-F] 2MASS-quality flag on Kmag (A=best) 57- 59 F3.1 kpc DL Luminosity distance 61- 63 F3.1 kpc DLc ? Corrected luminosity distance (1) 65- 67 F3.1 kpc DK K-band distance
Note (1): distance corrected for the HBB stars (Hot Bottom Burning stage) with P>400d Note (2): +: Reliable estimate of the photometric error could not be determined (>8.0)
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 21-Apr-2012
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