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J/PASJ/53/293    IRAS/SiO sources toward Galactic Bulge   (Deguchi+, 2001)

Near-IR observations of IRAS sources with SiO masers at the inner Galactic Bulge Deguchi S., Fujii T., Matsumoto S., Nakashima J., Wood P.R. <Publ. Astron. Soc. Jap., 53, 293 (2001)> =2001PASJ...53..293D
ADC_Keywords: Infrared sources ; Photometry, infrared ; Masers Keywords: Galaxy: bulge - infrared: sources - stars: kinematics - stars: long-period variables - stars: mass loss Abstract: Near-infrared photometric observations in the J-, H-, and K-bands have been made for 86 IRAS sources toward the inner Galactic bulge (|l|<3° and |b|<3°). SiO maser emission has previously been detected in all of these sources; they are well-confirmed, mass-losing, late-type stars having accurate radial velocities derived from SiO observations. For 78 sources, single, unambiguous near-infrared counterparts were found within the errors of the IRAS positions; for the other 8 sources, multiple candidates, candidates with a low confidence level, or candidates overlapped with other stars were found. From the J-, H-, K-band and IRAS 12 and 25µm intensities, we estimated the spectral energy distributions of the sources, and obtained the distances, assuming a constant luminosity. The derived distances of the IRAS/SiO sources are consistent with the current bar model of the Galactic bulge, where the near side of the bar is located in the first quadrant of the galactic longitude. We also reanalyzed the radial velocity shift with distance, and confirmed the presence of streaming motions of stars in the bar-like bulge. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 79 78 Observed magnitudes and positions of the IRAS candidates table2.dat 79 11 Ambiguous, multiple, and overlapped candidates
See also: V/114 : MSX6C Infrared Point Source Catalog (Egan+ 2003) V/68 : Stellar Maser Observations (Benson+ 1990) J/ApJS/106/463 : SiO maser sources (Jiang+ 1996) J/A+AS/132/211 : SiO masers (Harju+ 1998) J/A+AS/127/185 : SiO masers in OH/IR stars, proto-PN and PN (Nyman+ 1998) J/PASJ/54/719 : IRAS/SiO sources in the Galactic bulge (Deguchi+ 2002) Byte-by-byte Description of file: table1.dat table2.dat
Bytes Format Units Label Explanations
1- 10 A10 --- IRAS IRAS name 12- 21 A10 "YYYY/MM/DD" Date Observation date 23 A1 --- Cand ? Candidate number, only in table2 25- 30 F6.3 mag Jmag ? J magnitude 32- 37 F6.3 mag Hmag ? H magnitude 39 A1 --- l_Kmag Limit flag on Kmag 40- 45 F6.3 mag Kmag ? K magnitude 46 A1 --- n_Kmag [N] N: The K-band imaging failed (no value) 47- 51 F5.1 arcsec DX Difference from the IRAS position in RA (1) 53- 57 F5.1 arcsec DY Difference from the IRAS position in DE (1) 59- 74 A16 --- MSX Name of the nearest MSX source (Cat. V/114) 75 A1 --- n_MSX [*] if no MSX source was found within 40" 76- 79 F4.1 arcsec DR ? Position difference between the identified source and the MSX source
Note (1): The difference in the position in right ascension and declination (DX and DY) from the IRAS PSC position is expressed on the plane of the sky; the coordinates of an object are given by RA = RA(IRAS PSC position) + DX("), DE = DE(IRAS PSC position) + DY("), at the epoch of 1950 (the signs of DX and DY are taken oppositely from those of Deguchi et al., 1998PASJ...50..597D).
History: From electronic version of the journal
(End) James Marcout, Patricia Bauer [CDS] 24-Apr-2002
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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