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 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:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 89 163 SiO detections
table3.dat 95 291 Infrared properties of the observed sources
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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
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Bytes Format Units Label Explanations
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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 K.km/s 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 K.km/s 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
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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- 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
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 03-Nov-2006