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III/113 Deep Objective-Prism Survey for LMC Members (Sanduleak 1970)
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A Deep Objective-Prism Survey for Large Magellanic Cloud Members
Sanduleak N.
<Contr. Cerro Tololo Inter-American Obs., No. 89 (1970)>
=1970CoTol..89....1S
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ADC_Keywords: Surveys; Magellanic Clouds
Description:
The catalog contains 1273 proven or probable Large Magellanic Cloud (LMC)
members, identified on plates taken with the Curtis-Schmidt telescope at
Cerro Tololo Inter-American Observatory in Chile. The stars are generally
brighter than photographic magnitude 14 and are identified on charts
published by Hodge and Wright (1967) and reproduced in the source
publication (Sanduleak 1970). Approximate spectral types were determined
by examination of the 580 angstroms/mm (at H-gamma) objective-prism
spectra; approximate 1975 positions were obtained by measuring relative to
the 1975 coordinate grids on the Uppsala-Mount Stromlo Atlas of the LMC
(Gascoigne and Westerlund 1961), and approximate photographic magnitudes
were determined by averaging image density measures from the plates and
image-diameter measures on the "B" charts of Hodge and Wright (1967). The
catalog includes an identification number (NS), HD(E) number, Cape
Photographic Durchmusterung number, right ascension and declination
(equinox B1975), spectral type, photographic magnitude, and alternate
identifications. The machine version, updated in September 1986, includes
corrections supplied by the author in 1985; thus, it differs somewhat from
the published version.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
data.dat 92 1273 The catalog
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Byte-by-byte Description of file: data.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- NS_zone Source identification - declination zone
5- 7 I3 --- NS-no Source identification (NS) - number
8 A1 --- NSsuffix Suffix character "a", "b", or "c" if more
than one star has the same NS
9 A1 --- n_NS [*] Asterisk if note in Table 3
10- 15 I6 --- HD ?Henry Draper Catalogue number
16 A1 --- u_HD [:] HD identification uncertain
17- 19 I3 --- CP_zone ?Zone for CPD number
20- 23 I4 --- CP_no ?Cape Photographic Durchmusterung number
24 A1 --- u_CP [:] CPD identification uncertain
25- 26 I2 h RAh Right ascension (B1975) hours
28- 31 F4.1 min RAm RA minutes
33 A1 --- DE- Sign of Declination (B1975)
34- 35 I2 deg DEd DEC in degrees
37- 38 I2 arcmin DEm DEC in arcminutes
39- 44 A6 --- Sp Spectral type. Lower case characters for:
broad lines (n) and emission (e)
45- 48 F4.1 mag mpg Photographic magnitude mpg (always present).
49 A1 --- n_mpg [v] if variable mpg; otherwise blank.
50- 61 A12 --- chart *Finding chart identification
62- 92 A31 --- Alt *Alternate identification
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Note on chart:
Finding chart identification in source publication (Sanduleak 1969). When a
star is identified on more than one chart, the numbers are separated by
commas. (Identifications such as 45a, 45d are present).
Note on Alt:
Alternate identification designations for the star, separated
by commas for multiple entries. Abbreviations for the numbers
are explained in Table 1 below.
Table 1. Key to Alternate Identifications:
Des. Reference Information Content
--- ---------------------------- --------------------------------------
AL Andrews and Lindsay (1964) List of H-alpha emission stars
BBB Bok, Bok and Basinski (1962) Color-magnitude arrays for two
associations
FDD Fehrenbach, Duflot and List of stars having very large radial
Duflot (1965) velocities indicating LMC membership
HV Hodge and Wright (1967) List of Harvard variables
L Lindsay (1963) List of H-alpha emission stars
MWC Merrill and Burwell (1933, Mount Wilson catalog and bibliography
1943, 1949) of stars of classes B and A whose
spectra display bright hydrogen lines
K Feast, Thackeray and Spectroscopic and photometric data for
Wesselink (1960) known bright LMC members
S Henize (1956) List of H-alpha emission stars
W Westerlund (1961) Photometric data in several selected
regions of the LMC. As an example of
the notation, W10-46 means star 46 in
Westerlund's table 10
Wo Woolley (1968) Proper motions for stars in a one
degree region
WS Westerlund and Smith (1964) A list of Wolf-Rayet stars
Table 3. Notes to Catalog Data Records:
Zone Star Remarks
---- ---- ---------------------------------------------------
-65 20a Easternmost star of unresolved pair on the chart.
62 Westernmost of the three stars.
-66 41 Brightest star in NGC 1769. See Woolley (1963) for
positive identification.
43 Easternmost of two brightest stars in NGC 1773.
97 Westernmost of unresolved pair on the chart.
No. 98 is the other star.
-67 19 Strong Balmer discontinuity.
44 Very strong Balmer discontinuity.
250 Excites large H II ring.
-68 15 Westernmost star of unresolved pair on chart.
18 Double. Both components are OB stars.
19 Located just south of a much brighter late-type star.
93 Strong Balmer discontinuity.
98 See chart by Westerlund (1961) for positive identification.
100 K-line present.
110 Should be deleted. Proven foreground star.
145 Shows Lambda (A) 3811-34 (OVI) in emission.
-69 25 Excites H II region.
36a Double. Both components are OB stars.
76 South-trailing star.
94 North-preceding star.
147a North-preceding star.
148 May be late-type supergiant.
209a See chart by Westerlund and Smith (1964) for positive
identification.
-69 223 South-preceding star whose spectrum overlaps with that of
star 224 to form HD 38029.
243 See Feast et al. (1960) for positive identification
of this star and several WR stars which we could
not detect because of the nebulosity in this region.
266 North-trailing star.
-70 98 Brightest star in the cluster SL539 - HDE 269664
Table 4: Changes Made to the Catalog in 1985 and Incorporated into the
Machine Version.
NS Datum For Read Remarks
-------- ----- ---------------------------
-65 7a Des S10,Wo71,Al-47
SpT OB: OB:(e)
-66 22 Des S4,AL-31 Delete
-66 58 DM -66 372
-66 84 HDE 271234
-66 96 Les AL-196: Delete
-66 103 Des AL-208: Delete
-66 104 HDE 271291
-66 132 DM -66 429
-67 1 Des AL-17: AL-17
-67 36 DM -67 381
-67 37a Des AL-55 Add
-67 64 Des MWC105 Add
-67 114 Des AL-195: Delete
-67 158 Des AL-271: Delete
-67 165 Des AL-278: AL-278
-67 167 SpT OB Of
-67 175 HDE 269721
-67 177 HDE 269724 Delete
-67 179 Des AL-301 Add
-68 40 DM -68 312
-68 42 SpT OB OB(e)
-68 48 SpT B6I B6I(e)
-68 51 SpT OB OB:(e)
-68 52 DM -68 318
-68 63 DM -68 326
-68 115 Des AL-289: AL--289
-68 135 DM -68 406
-68 138 HDE 269928 Delete
-68 143 Des FDD Add
-69 2a HDE 268612
-69 6 HDE 268632
-69 77 Des MWC 106 Add
-69 78 DM -69 344
-69 79 Des MWC492 Add
-69 89 DM -69 351
-69 91 DM -69 353
-69 92 DM -69 352
-69 93 DM -69 354
-69 94 Des MWC 108 Add
-69 94 DM -69 356
-59 100 DM -69 360
-69 102 HDE 269357 Delete
-69 104 HDE 269357
-69 113 DM -69 367
-69 121 Des L-216: Delete
-69 129 Des FDD Add
-69 142a Des MWC 112 Add
-69 147a Des MWC 113 Add
-69 160 Des L-265: L-263
-69 172 Des AL-260: Delete
-69 200 DM -69 399
-69 201 Des MWC 121 Add
DM -69 401
-69 202 Des Supernova 1987a?
-69 202 DM -69 404
-69 205 Des L-294: L-294
-69 209 Des L-296 Add
-69 216 Des MWC123 Add
-69 220 Des MWC511 Add
-69 223 DM -69 442
-69 234 HDE 269891 269888
DM -69 429 Delete
-69 245 Des AL-380 Add
-69 258 DM -69 479
-69 259 Des MWC126 Add
DM -69 478
-69 261 Des L-312: Delete
-69 262 Des W-8-12 Add
-69 263 DM -69 488
-69 264 DM -69 490
-69 273 DM -69 502
-69 276 DM -69 504
-69 290 DM -69 513
-70 29 Des MWC97 Add
-70 30a Des S152 Add
-70 92 Des L-241: L-241
-70 98 HDE 269664
-70 109 Des S168 Add
-70 111 HDE 269992 269993
-70 111 DM -69 503 -70 435
-71 23 DM -71 336
-71 33 Des S167,L-254 Add
-71 34 Des L-264: L-264
-71 35 Des L-270: L-270
-71 50 Des L-317: L-317
Remarks and References:
The data, contained in Table III of Sanduleak (1970), were transcribed to
data forms at the Astronomical Data Center, then punched to cards and
verified at two separate locations. The resulting two card decks were
transferred to disk and compared, corrected, and modified with the addition
of the notes flags and extension to 85-byte records. This first machine
version of the catalog was documented by Warren (1982). A letter and
photocopy of the original paper were received from Dr. Esther M. Hu of the
University of Hawaii in August 1986. The photocopy had been made from a
reprint supplied to the Space Telescope Science Institute by Dr. Sanduleak
in 1985, in which he had made a number of additions, deletions and
corrections by hand, and these had been highlighted by Dr. Hu. The catalog
was dearchived and the changes were incorporated; these changes are listed
in Table 4. Additional cross identifications to previously cataloged
objects required an extension of the logical record length to the current 92
bytes. A listing of the updated catalog was then sent to Dr. Sanduleak, who
made additional changes and returned the listing. These changes were then
incorporated into the catalog and added to Table 4.
The original documentation by W.H Warren (1982, 1986) was reformatted and
edited into this ReadMe file by C.-H. Joseph Lyu (1995).
References:
Andrews A.D., Lindsay E.M. 1964, Irish Astron. Journal, 6, 241.
Bok B.J., Bok P.F., Basinski J.M. 1962, Monthly Notices Roy. Astron.
Soc. 123, 487.
Feast M.W., Thackeray A.D., Wesselink A. J. 1960, Monthly Notices Roy.
Astron. Soc. 121, 337.
Fehrenbach Ch., Duflot M., Duflot A. 1965, Journ. des obs. 48, 185, 199.
Gascoigne S.C.B., Westerlund B.E. 1961, Uppsala-Mount Stromlo Atlas of the
Magellanic Clouds (Canberra: Australian National University).
Henize K.G. 1956, Astrophys. J. Suppl. 2, 315.
Hodge P.W., Wright F.W. 1967, The Large Magellanic Cloud, Smithsonian
Publication 4699 (Washington D.C.: Smithsonian Press).
Lindsay E.M. 1963, Irish Astron. Journal 6, 127.
Merrill P.W., Burwell C.G. 1933, Astrophys. J. 78, 87.
Merrill P.W., Burwell C.G. 1943, Astrophys. J. 98, 153.
Merrill P.W., Burwell C.G. 1949, Astrophys. J. 110, 387.
Nassau J.J., Stephenson C.B. 1960, Astrophys. J. 132, 130.
Sanduleak N. 1970, A deep objective-prism survey for Large Magellanic
Cloud members, Cerro Tololo Inter-American Obs., Contr. No. 89.
Thackeray A.D., Wesselink A.J. 1955, Observatory 75, 33.
Warren W.H.Jr. 1982, Documentation for the Machine-Readable Version of A
deep objective-prism survey for Large Magellanic Cloud members
(NSSDC/WDC-A-R&S 82-07)
Westerlund B.E. 1961, Uppsala Astron. Obs. Ann. 5, 3.
Westerlund B.E., Smith L.F. 1964, Monthly Notices Roy. Astron. Soc. 128, 311.
Woolley K.v.d.R. 1963, Roy. Obs. Bull. No. 66.
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(End) C.-H. Joseph Lyu, N.P.M. Kuin [Hughes STX/NASA ADC] 7-Jan-1997