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J/PASJ/59/559       SiO maser search off the Galactic plane  (Deguchi+, 2007)

An SiO maser search off the galactic plane. Deguchi S., Fujii T., Ita Y., Imai H., Izumiura H., Kameya O., Matsunaga N., Miyazaki A., Mizutani A., Nakada Y., Nakashima J.-I., Winnberg A. <Publ. Astron. Soc. Jap., 59, 559-587 (2007)> =2007PASJ...59..559D
ADC_Keywords: Masers ; Infrared sources ; Photometry, infrared Keywords: Galaxy: halo, kinematics and dynamics - masers - stars: AGB and post-AGB Abstract: We searched for the SiO J=1-0, v=1 and 2 maser lines at ∼43GHz in 277 2MASS/MSX/IRAS sources off the Galactic plane (|b|≳3°), which resulted in 119 (112 new) detections. Among the new detections, two are very faint objects with MSX 12µm flux densities below 2Jy. These are likely to be O-rich AGB-stars associated with dwarf-galaxy tidal tails. The sample also includes medium bright MSX objects at moderately high galactic latitudes (3°<|b|<5°) and in the IRAS gap at higher latitudes. A signature of a warp of the inner Galactic disk is found for a disk subsample. This warp appears relatively strongly in the area of 0°<l<45° and 3°<|b|<5°. We also found a group of stars that does not follow to the Galactic rotation. This feature appears in the Galactic disk at l∼27°, and extends more than 15° in the galactic latitude, like a stream of tidal debris from a dwarf galaxy. Description: Simultaneous observations in the SiO J=1-0, v=1 and 2 transitions at 42.122 and 42.821GHz respectively were made with the 45-m radio telescope at Nobeyama, mainly during the winter-spring seasons between 2003-2006; in addition, a few unpublished results from 1999 and 2000 were included in this work. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 102 118 SiO detections table2.dat 94 160 Negative results table3.dat 149 278 Infrared properties of the observed sources
See also: V/114 : MSX6C Infrared Point Source Catalog (Egan+ 2003) II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 17 A17 --- 2MASS 2MASS name (JHHMMSSss+DDMMSSs) 18 A1 --- n_2MASS [*±S] Previous detections (1) 20- 25 F6.1 km/s Vp1 ?=- Peak velocity for (J=1-0, v=1, 42.122GHz) 27- 31 F5.3 K Tp1 ?=- Peak temperature for (J=1-0, v=1) 33- 38 F6.3 F1 ?=- Flux for SiO (J=1-0, v=1) 40- 44 F5.3 K e_Tp1 RMS value for SiO (J=1-0, v=1) 46- 51 F6.1 km/s Vp2 ?=- Peak velocity for (J=1-0, v=2, 42.821GHz) 53- 58 F6.3 K Tp2 ?=- Peak temperature for SiO (J=1-0, v=2) 60- 65 F6.3 F2 ?=- Flux for SiO (J=1-0, v=2) 67- 71 F5.3 K e_Tp2 RMS value for SiO (J=1-0, v=2) 73- 84 A12 --- Date Observation date, in YYYY/MM/DD.d unit 86- 91 F6.1 km/s Vave Average velocity 93-102 A10 --- IRAS IRAS name (HHMMm+DDMM)
Note (1): Note as follows: * = Detected previously by Jiang et al., 1996, Cat. J/ApJS/106/463 + = Detected previously by Nyman, Hall, and Olofsson, 1998, Cat. J/A+AS/127/185 - = The SiO J=2-1, v=1 emission detected previously by Deguchi, Nakashima, and Balasubramanyam (2001PASJ...53..305D). S = Detected previously by Ita et al., 2001A&A...376..112I
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 17 A17 --- 2MASS 2MASS name (JHHMMSSss+DDMMSSs) 19- 23 F5.3 K eTp1 RMS value for SiO (J=1-0, v=1, 42.122GHz)) 25- 29 F5.3 K eTp2 RMS value for SiO (J=1-0, v=2, 42.821GHz) 31- 42 A12 --- Date Observation date in YYYY/MM/DD. unit 44- 53 A10 --- IRAS IRAS name (HHMMm+DDMM) 55- 94 A40 --- Com Comments
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 17 A17 --- 2MASS 2MASS name (JHHMMSSss+DDMMSSs) 18 A1 --- n_2MASS [+] +: No 2MASS object, but the IRAS position is shown 20- 25 F6.3 mag Kmag ? 2MASS K magnitude 27- 31 F5.3 mag J-H ? 2MASS J-H colour index 33- 37 F5.3 mag H-K ? 2MASS H-K colour index 39- 41 I3 --- Bflag ? Blending flag (1) 43- 59 A17 --- MSX MSX 6C name 61- 63 F3.1 arcsec drM ? Position difference between 2MASS and MSX sources 65- 71 F7.3 Jy FC ? MSX C-band (12um) flux density 72 A1 --- n_FC [*] * when FC conatins the IRAS 12um flux 74- 79 F6.3 --- C(AC) ? Flux density ratio log(FC/FA), where FA is MSX flux density at 8um 81- 86 F6.3 --- C(CE) ? Flux density ratio log(FE/FC), where FE is MSX flux density at 21um 87 A1 --- n_C(CE) [*] * when C(CE) = log(Firas25/Firas12) 89- 99 A11 --- IRAS IRAS name (HHMMm+DDMMA) 100-103 F4.1 arcsec drI ? Position difference between IRAS and 2MASS sources 105-149 A45 --- Com Comments
Note (1): Blend flag. Three character flag, one character per band [JHK], that indicates the number of components that were fit simultaneously when estimating the brightness of a source: 0 = Source is not detected, or is inconsistently deblended in that band. 1 = One component was fit to the source in R2 profile-fitting photometry (Rflg="2"), or default magnitudes are from aperture photometry (Rflg="1" or "4") or saturated star 1-d radial profile-fitting (Rflg="3"). >1 = More than one component was fit simultaneously during R2 profile-fit photometry, where the value of the field is the number of components simultaneously fit. The maximum number of components is 7 in any band for the PSC, so this Bflg is always a three character flag. Multi-component fitting occurs only for profile-fitting, and only when more than one detection is found within ∼5". Single detections that are not well-fit by a single PSF are not split.
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 30-Jun-2008
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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