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J/A+AS/128/35 New Sample of OH/IR stars (Sjouwerman+ 1998)
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A new sample of OH/IR stars in the Galactic center
Sjouwerman L.O., Van Langevelde H.J., Winnberg A., Habing H.J.
<Astron. Astrophys. Suppl. Ser. 128, 35 (1998)>
=1998A&AS..128...35S (SIMBAD/NED BibCode)
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ADC_Keywords: Stars, masers ; Infrared sources ; Spectroscopy
Keywords: masers - catalogs - surveys - stars: AGB and post-AGB -
Galaxy: center - radio lines: stars
Description:
Tables 2 and 3 present the positional and kinematic, and physical data
for OH/IR stars found within 37 arcmin of the Galactic center (Sgr A*)
respectively.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2 104 253 OH/IR stars in the Galactic center: positional and
kinematic data
table3 88 253 OH/IR stars in the Galactic center: physical data
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See also:
J/A+AS/92/43 : Radio Obs. of OH/IR stars close to GCenter (Lindqvist+ 1992)
J/ApJS/89/189 : IRAS PSC new OH/IR stars. III. (Chengalur+ 1993)
Table 1: 1612 MHz Survey image cubes
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Code Set Image cube center Epoch Size Res Freq Freq rms Velocity range
RA DE ' " km/s kHz mJy km/s
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
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a VLA 17 42 12.6 -28 56 18.0 (B1950) 37 2.2 1.14 6.1 7.2 -93 -> +176
b VLA 17 42 29.3 -28 59 18.0 (B1950) 17 0.5 2.27 12.2 3.7 -92 -> +176
c ATCA 17 45 40.0 -29 00 28.0 (J2000) 37 2.2 1.45 7.8 4.5 -600 -> +700
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Notes: 1: Survey code
2: Survey data set
5: Survey Field size
6: Pixel size
7,8: Frequency resolution in km/s (7) and kHz (8)
9: Noise level
10: Velocity coverage
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Byte-by-byte Description of file: table2
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Bytes Format Units Label Explanations
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1 A1 --- Code [abc] Image cube/data set code (see Table 1)
4- 16 A13 --- Name OH name according to its Galactic coordinates
19- 20 I2 h RAh Right ascension (J2000)
22- 23 I2 min RAm Right ascension (J2000)
25- 30 F6.3 s RAs Right ascension (J2000)
32 A1 --- DE- Declination sign
33- 34 I2 deg DEd Declination (J2000)
36- 37 I2 arcmin DEm Declination (J2000)
39- 43 F5.2 arcsec DEs Declination (J2000)
46- 50 F5.3 arcsec e_Pos Maximum error in RA or Dec
53- 58 F6.1 km/s Vblue Velocity blue-shifted peak
61- 66 F6.1 km/s Vred Velocity red-shifted peak
69- 74 F6.1 km/s Vstar Stellar velocity (mean of OH peaks)
77- 83 F7.3 arcmin oGLON Galactic longitude offset from Sgr A*
86- 92 F7.3 arcmin oGLAT Galactic latitude offset from Sgr A*
95- 104 A10 --- Ref References, see Note (1)
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Note (1):
1 Lindqvist et al., 1992A&AS...92...43L (number) and references therein
1a Lindqvist et al., 1992A&AS...92...43L, single peak (number)
2 Baud et al., 1975Natur.258..406B
3 Van Langevelde et al., 1992A&A...261L..17V
4 Levine et al., 1995ApJ...447L.101L
5 Yusef-Zadeh & Mehringer, 1995ApJ...452L..37Y
6 I.S. Glass, pers. comm. (Glass et al. 1996)
* See remarks in main text
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Byte-by-byte Description of file: table3
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Bytes Format Units Label Explanations
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1 A1 --- Code Image cube/data set code (see Table 1)
3- 15 A13 --- Name OH name according to its Galactic coordinates
17- 20 F4.2 --- PBF Primary beam attenuation factor
22- 27 F6.1 mJy Sblue Peak flux density blue-shifted peak
29- 33 F5.2 Jy.km/s Iblue Integrated line flux blue-shifted peak
35- 38 F4.1 % e_Sblue Relative error blue-shifted measurements
40- 45 F6.1 mJy Sred Peak flux density red-shifted peak
47- 51 F5.2 Jy.km/s Ired Integrated line flux red-shifted peak
53- 56 F4.1 % e_Sred Relative error red-shifted measurements
59- 63 F5.2 km/s Vexp Expansion velocity of OH shell
65- 68 F4.1 [solLum] log(L(OH)) OH luminosity (R_0_= 8 kpc)
70- 73 F4.1 arcsec Deconv1 Deconvolution major axis
75- 78 F4.1 arcsec Deconv2 Deconvolution minor axis
80- 82 I3 deg Deconv3 Deconvolution position angle
84- 87 A4 --- Note Notes, see Note (1)
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Note (1): MC: Molecular cloud complex(es)
LWHM: Peak velocity secondary in Table 2 from Lindqvist et al.,
1992A&AS...92...43L
VLA: Peak velocity secondary in Table 2 from our VLA data
ATCA: Peak velocity secondary in Table 2 from our ATCA data
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Acknowledgements: Lorant Sjouwerman <sjouwerm@oso.chalmers.se>
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(End) Lorant Sjouwerman [Onsala Space Observatory] 09-Jun-1997