III/277 Hα emission objects in the southern Milky Way (Wray, 1966)
A study of Hα emission objects in the southern Milky Way.
Wray J.D.
<Ph.D. Thesis, Northwestern University (1966)>
=1966PhDT.........3W 1966PhDT.........3W
ADC_Keywords: Stars, emission ; Planetary nebulae
Description:
The stars reported in James Wray's PhD thesis result from photographic
plates taken by Karl Henize in South Africa during 1949-1951 covering
the Southern Galactic plane to about 10° latitude.
Accurate positions of the stars studied in the PhD thesis were
recovered by B. Skiff, see details in the "intro.txt" file.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
intro.txt 80 145 Description of the tables bu B. Skiff
wray_15.dat 132 1887 Table 15: emission stars
wray_16.dat 79 388 Table 16: likely planetary nebulae
wray_17.dat 83 60 Table 17: possible planetary nebulae
wray_18.dat 114 323 Table 18: C- and S-type stars
wray_19.dat 110 55 Table 19: diffuse nebulae
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See also:
J/ApJS/2/315 : Hα emission stars and nebulae (Henize, 1956)
J/ApJS/30/491 : Hen-3 list of southern emission-line stars (Henize+, 1976)
Byte-by-byte Description of file (#): wray_15.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- T [15] Table number (G1)
3 A1 --- --- [-]
4- 7 I4 --- ID Star number in table (G1)
11- 12 I2 h RAh Right Ascension J2000 (hours)
14- 15 I2 min RAm Right Ascension J2000 (minutes)
17- 21 F5.2 s RAs Right Ascension J2000 (seconds)
23 A1 --- DE- Declination J2000 (sign)
24- 25 I2 deg DEd Declination J2000 (degrees)
27- 28 I2 arcmin DEm Declination J2000 (minutes)
30- 33 F4.1 arcsec DEs Declination J2000 (seconds)
35 A1 --- s [bCgGMsTuUW-] Source of position (G2)
38- 41 F4.1 mag Vmag ? Approximative V-band magnitude
43- 48 I6 --- HD ? HD number identification (III/135)
51- 60 A10 --- CD Cordoba Durcmusterung ID
62- 70 A9 --- CPD Cape Photographic Durcmusterung ID
75-132 A58 --- Remarks Remarks about the star, by B. Skiff
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Byte-by-byte Description of file (#): wray_1[679].dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- T [16/19] Table number (G1)
3 A1 --- --- [-]
4- 7 I4 --- ID Star number in table (G1)
11- 12 I2 h RAh ? Right Ascension J2000 (hours)
14- 15 I2 min RAm ? Right Ascension J2000 (minutes)
17- 21 F5.2 s RAs ? Right Ascension J2000 (seconds)
23 A1 --- DE- ? Declination J2000 (sign)
24- 25 I2 deg DEd ? Declination J2000 (degrees)
27- 28 I2 arcmin DEm ? Declination J2000 (minutes)
30- 33 F4.1 arcsec DEs ? Declination J2000 (seconds)
35 A1 --- s [bCEgGMsTuUW-] Source of position (G2)
38- 41 F4.1 mag Vmag ? Approximative V-band magnitude
45-110 A66 --- Remarks Remarks about the star, by B. Skiff
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Byte-by-byte Description of file (#): wray_18.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- T [18] Table number (G1)
3 A1 --- --- [-]
4- 7 I4 --- ID Star number in table (G1)
11- 12 I2 h RAh ? Right Ascension J2000 (hours)
14- 15 I2 min RAm ? Right Ascension J2000 (minutes)
17- 21 F5.2 s RAs ? Right Ascension J2000 (seconds)
23 A1 --- DE- ? Declination J2000 (sign)
24- 25 I2 deg DEd ? Declination J2000 (degrees)
27- 28 I2 arcmin DEm ? Declination J2000 (minutes)
30- 33 F4.1 arcsec DEs ? Declination J2000 (seconds)
35 A1 --- s [bCgGMsTuUW-] Source of position (G2)
38- 41 F4.1 mag Vmag ? Approximative V-band magnitude
43- 53 A11 --- IRAS IRAS identification (II/125, II/156, II/275)
56- 61 A6 --- Sp Spectral class (C or S)
65-114 A50 --- Remarks Remarks about the star, by B. Skiff
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Global Notes:
Note (G1): the star identification is written "Wray T-NNNN" where "T" is the
table number (15 to 19) and "NNNN" the running number in the table.
The table number corresponds to the types:
* Table 15: early-type Hα stars
(many are late-type non-emission stars)
* Table 16: planetary nebulae (some errors)
* Table 17: possible planetary nebulae (many errors)
* Table 18: carbon and S stars (mixed M, carbon, and S types)
* Table 19: diffuse nebulae
(mostly large features, but some discrete objects)
Note (G2): position sources (column 's') as follows:
b = USNO-B1.0 (I/284)
C = CMC15 (I/327)
E = Edinburgh SuperCOSMOS (http://www-wfau.roe.ac.uk/sss/obj.html)
g = GSC-2.3 (I/305)
G = GSC-ACT (I/255)
M = 2MASS (II/246)
s = B.Skiff estimate from images for nebulae with poorly defined centers
T = Tycho-2 (I/259)
u = UKIDSS (II/314,II/316)
U = UCAC2 or UCAC4 (I/289,I/322)
W = WISE (II/311)
- = other sources, including VVV (II/337) and GAIA DR1 (I/337)
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Nomenclature Notes:
* Wray 15-NNNN : emission stars
* Wray 16-NNN : likely planetary nebulae
* Wray 17-NNN : possible planetary nebulae
* Wray 18-NNN : C- and S-type stars
* Wray 19-NN : diffuse nebulae
History:
Prepared by Brian Skiff (Lowell Observatory)
(End) Brian Skiff [Lowell Obs.], Francois Ochsenbein [CDS] 03-Oct-2016