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J/PASJ/58/529       SiO Maser Survey in Galactic Bulge       (Fujii+, 2006)

SiO Maser Survey of the Inner Bar of the Galactic Bulge. Fujii T., Deguchi S., Ita Y., Izumiura H., Kameya O., Miyazaki A., Nakada Y. <Publ. Astron. Soc. Jap. 58, 529 (2006)> =2006PASJ...58..529F
ADC_Keywords: Infrared sources ; Masers ; Radio sources ; Photometry, infrared Keywords: Galaxy: center, kinematics and dynamics - masers - stars: AGB and post-AGB Abstract: We surveyed 291 MSX/2MASS infrared objects in the 7°x2° area of the galactic center in the 43GHz SiO J=1-0 v=1 and 2 maser lines, obtaining accurate radial velocities of 163 detected objects. The surveyed area is the region where the IRAS catalog is incomplete due to contamination by high source density. The objects in the present MSX/2MASS sample were chosen to have similar infrared characteristics to those of the previous SiO-maser-survey samples based on the color-selected IRAS sources. The sampling based on the 2MASS catalog causes a bias to the foreside objects of the bulge due to heavy obscuration by interstellar dust; the detections considerably leaned on the Vlsr<0 side. 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 2004 February-May, and 2005 February-May. Prior to the main long-term project of 2004-2005, a pilot study of about ten sources for this project was made in 2003 May; detections in this pilot study were also involved in this paper. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 89 163 SiO detections table3.dat 95 291 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) II/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 17 A17 --- Name Object name (JHHMMSSss+DDMMSSs) 18 A1 --- n_Name [*] *: The MSX position was observed 20- 25 F6.1 km/s Vpeak1 ?=- SiO J=1-0 v=1 (43.122GHz) peak velocity 27- 31 F5.3 K Tpeak1 ?=- SiO J=1-0 v=1 (43.122GHz) peak temperature 33- 38 F6.3 Flux1 ?=- SiO J=1-0 v=1 (43.122GHz) flux 40- 44 F5.3 K rms1 SiO J=1-0 v=1 RMS 46- 51 F6.1 km/s Vpeak2 ?=- SiO J=1-0 v=2 (42.821GHz) peak velocity 53- 57 F5.3 K Tpeak2 ?=- SiO J=1-0 v=2 (42.821GHz) peak temperature 59- 63 F5.3 Flux2 ?=- SiO J=1-0 v=2 (42.821GHz) flux 65- 69 F5.3 K rms2 ?=- SiO J=1-0 v=2 RMS 71- 82 A12 --- Date Date (YYYY/MM/DD.d) 84- 89 F6.1 km/s Vmean Average velocity
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 [*] *: The MSX position was observed 20- 36 A17 --- MSX6C MSX6C name (GLLL.llll+DD.dddd) 38- 40 F3.1 arcsec D2M Separation between 2MASS and MSX6C objects 42- 47 F6.3 mag Kmag 2MASS K magnitude 49- 53 F5.3 mag J-H 2MASS J-H colour index 55- 59 F5.3 mag H-K 2MASS H-K colour index 61- 65 F5.2 Jy FC MSX flux density in band C (12um) 67- 72 F6.3 --- CCE ?=- MSX color (=log(Fe/Fc), 21um/12um) 74- 79 F6.1 km/s Vlsr ? LSR radial velocity of SiO 81- 90 A10 --- IRAS Nearest IRAS source within 60" name (HHMMm-DDMM) 92- 95 F4.1 arcsec D2I ? Separation between 2MASS and IRAS sources
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 03-Nov-2006
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