III/113A Deep Objective-Prism Survey for LMC Members (Sanduleak 1970)
A Deep Objective-Prism Survey for Large Magellanic Cloud Members.
Sanduleak N.
<Contr. Cerro Tololo Inter-American Obs., No. 89 (1970)>
=1970CoTol..89....1S 1970CoTol..89....1S
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 (1970CoTol..89....1S 1970CoTol..89....1S).
Approximate spectral types were determined by examination of the 580
Angstroms/mm (at Hγ) 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
(1967SAOP.4699....1H 1967SAOP.4699....1H). The catalog includes an identification number
(Sk), 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.
Accurate positions, and cross-identifications with the modern surveys,
were determined by Brian Skiff in 2008, and make up the "sk_pos.dat"
file. This work is based on a file prepared through great effort by
Mati Morel in 1999. Brian Skiff examined every object on DSS cut-outs
to make sure the star chosen matched the Sanduleak charts. The Goddard
SkyView utility was used, looking at an 0.07° (4'x4') field from
the DSS1 (short-V plate), DSS2 far-red, and 2MASS J-band images.
These three have the shallowest effective exposure (these are bright
stars!), and usually the best image quality to check for companions
etc as well as star colors. Precise coordinates were then obtained via
VizieR mainly from UCAC2, but occasionally elsewhere as indicated
in the column 's' for each star. The list was also matched against
Tycho-2 and the GSC, and the Massey et al. photometric survey from
2002ApJS..141...81M 2002ApJS..141...81M (Cat. II/236).
The file "sk_pos.dat" includes also Sanduleak's original approximate
spectral types, and approximative V magnitudes that Mati Morel adopted
from the work of the Marseille group; some missing HD(E) and CPD names
were also added. It should be noticed also that the file has 1275
entries, 3 stars being resolved into resolved pairs.
The notes includes Sanduleak's original notes, as well as remarks
added by Brian Skiff in the course of his verifications.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
sk_pos.dat 129 1275 Accurate positions of Sanduleak stars, by B. Skiff
data.dat 92 1273 The catalog in its 1985 version.
notes.dat 80 54 Notes (original and B. Skiff's)
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Byte-by-byte Description of file: sk_pos.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 A2 --- --- [Sk]
3- 5 I3 --- SkZ Sanduleak name: declination zone
7- 9 I3 --- SkN Sanduleak name: number in zone
10 A1 --- m_SkN [abc] Sanduleak name: multiplicity index.
11 A1 --- n_SkN [*] Remark detailed in "notes.dat"
13- 14 I2 h RAh Right Ascension J2000 (hours)
16- 17 I2 min RAm Right Ascension J2000 (minutes)
19- 23 F5.2 s RAs Right Ascension J2000 (seconds)
25 A1 --- DE- Declination J2000 (sign)
26- 27 I2 deg DEd Declination J2000 (degrees)
29- 30 I2 arcmin DEm Declination J2000 (minutes)
32- 35 F4.1 arcsec DEs Declination J2000 (seconds)
37 A1 --- s [UMGTDscg] Source of position (1)
39- 46 I8 --- UCAC2 ? UCAC2 identification
48- 58 A11 --- Tyc/GSC GSC or Tycho-2 (Cat. I/259) identification
60- 65 I6 --- [M2002] ? Identification in Massey
(2002ApJS..141...81M 2002ApJS..141...81M, Cat. II/236)
67- 70 F4.1 mag Vmag Approximative visual magnitude (from M. Morel)
71 A1 --- u_Vmag Uncertainty flag (:) on Vmag
73- 79 A7 --- SpType Spectral type (from Sanduleak)
83-129 A47 --- Rem Remarks (from B. Skiff)
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Note (1): the source of position uses the following symbols:
c = AC 2000 (1998AJ....115.1212U 1998AJ....115.1212U, I/275, for Sk-69 202)
D = DENIS (1999A&A...349..236E 1999A&A...349..236E, B/denis)
g = GSC-2.3 (2006yCat.1305.....S 2006yCat.1305.....S, I/305)
G = GSC-ACT (1999yCat.1255.....G 1999yCat.1255.....G, I/255)
M = 2MASS (2006AJ....131.1163S 2006AJ....131.1163S, II/246)
s = B.Skiff estimate for Sk-69 223, mid-point for Sk-71 45 group
T = Tycho-2 (2000A&A...357..367H 2000A&A...357..367H, I/259)
U = UCAC2 (2004AJ....127.3043Z 2004AJ....127.3043Z, I/289)
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Byte-by-byte Description of file: data.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- SkZ Sanduleak name: declination zone
5- 7 I3 --- SkN Sanduleak name: number in zone
8 A1 --- m_SkN [abc] Sanduleak name: multiplicity index
than one star has the same NS
9 A1 --- n_SkN [*] Asterisk if note, detailed in "notes.dat"
10- 15 I6 --- HD ? Henry Draper Catalogue number
16 A1 --- u_HD [:] HD identification uncertain
17- 23 A7 --- CPD Cape Photographic Durchmusterung name
24 A1 --- u_CPD [:] 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 Declination: degrees
37- 38 I2 arcmin DEm Declination: arcminutes
39- 44 A6 --- SpType Spectral type. Lower case characters for
broad lines (n=nebulous) and emission (e)
45- 48 F4.1 mag Pmag Photographic magnitude mpg (always present).
49 A1 --- n_Pmag [v] if variable mpg; otherwise blank.
50- 61 A12 --- Chart Finding chart identification (1)
62- 92 A31 --- Alt Alternate identification (2)
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Note (1):
Finding chart identification in source publication. When a star is
identified on more than one chart, the numbers are separated by
commas (identifications such as 45a, 45d are present).
Note (2):
Alternate identification designations for the star, separated by
commas for multiple entries. Abbreviation keys are:
AL = Andrews and Lindsay (1964IrAJ....6..241A 1964IrAJ....6..241A):
List of H-α emission stars
BBB = Bok, Bok and Basinski (1962MNRAS.123..487B 1962MNRAS.123..487B):
Color-magnitude arrays for two associations
FDD = Fehrenbach, Duflot and Duflot (1965JO.....48..185F 1965JO.....48..185F):
List of stars having very large radial velocities
indicating LMC membership
HV = Hodge and Wright (1967SAOP.4699....1H 1967SAOP.4699....1H):
List of Harvard variables
L = Lindsay (1963IrAJ....6..127L 1963IrAJ....6..127L):
List of H-α emission stars
MWC = Merrill and Burwell (1933ApJ....78...87M 1933ApJ....78...87M, 1943ApJ....98..153M 1943ApJ....98..153M,
1949ApJ...110..387M 1949ApJ...110..387M):
Mount Wilson catalog and bibliography of stars of classes
B and A whose spectra display bright hydrogen lines
K = Feast, Thackeray and Wesselink (1960MNRAS.121..337F 1960MNRAS.121..337F):
Spectroscopic and photometric data for known bright LMC members
S = Henize (1956ApJS....2..315H 1956ApJS....2..315H):
List of H-α emission stars
W = Westerlund (1961UppAn...5a...1W 1961UppAn...5a...1W):
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 (1963RGOB...66..263W 1963RGOB...66..263W):
Proper motions for stars in a one degree region
WS = Westerlund and Smith (1964MNRAS.128..311W 1964MNRAS.128..311W):
A list of Wolf-Rayet stars
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Byte-by-byte Description of file: notes.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1 A1 --- n_SkZ [S] Blank for original note,
'S' for a note from Brian Skiff.
2- 4 I3 --- SkZ Sanduleak name: declination zone
6- 8 I3 --- SkN Sanduleak name: number in zone
9 A1 --- m_SkN Sanduleak name: multiplicity index
11- 80 A70 --- Text Text of note
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History (from ADC):
The data, contained in Table III of the paper, 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 below. Additional cross
identifications to previously catalogued 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 the list of changes below.
The original documentation by W.H Warren (1982, 1986) was reformatted
and edited into this ReadMe file by C.-H. Joseph Lyu and N.P.M. Kuin
[Hughes STX/NASA ADC] on 07-Jan-1997.
Changes Made to the Catalog in 1985 and Incorporated
into the Machine Version:
---------------------------------------------
Sk Datum For Read Remarks
-------- ----- ---------------------------
-65 7a Alt S10,Wo71,Al-47
SpT OB: OB:(e)
-66 22 Alt S4,AL-31 Delete
-66 58 DM -66 372
-66 84 HDE 271234
-66 96 Alt AL-196: Delete
-66 103 Alt AL-208: Delete
-66 104 HDE 271291
-66 132 DM -66 429
-67 1 Alt AL-17: AL-17
-67 36 DM -67 381
-67 37a Alt AL-55 Add
-67 64 Alt MWC105 Add
-67 114 Alt AL-195: Delete
-67 158 Alt AL-271: Delete
-67 165 Alt AL-278: AL-278
-67 167 SpT OB Of
-67 175 HDE 269721
-67 177 HDE 269724 Delete
-67 179 Alt 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 Alt AL-289: AL--289
-68 135 DM -68 406
-68 138 HDE 269928 Delete
-68 143 Alt FDD Add
-69 2a HDE 268612
-69 6 HDE 268632
-69 77 Alt MWC 106 Add
-69 78 DM -69 344
-69 79 Alt MWC492 Add
-69 89 DM -69 351
-69 91 DM -69 353
-69 92 DM -69 352
-69 93 DM -69 354
-69 94 Alt 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 Alt L-216: Delete
-69 129 Alt FDD Add
-69 142a Alt MWC 112 Add
-69 147a Alt MWC 113 Add
-69 160 Alt L-265: L-263
-69 172 Alt AL-260: Delete
-69 200 DM -69 399
-69 201 Alt MWC 121 Add
DM -69 401
-69 202 Alt Supernova 1987A?
-69 202 DM -69 404
-69 205 Alt L-294: L-294
-69 209 Alt L-296 Add
-69 216 Alt MWC123 Add
-69 220 Alt MWC511 Add
-69 223 DM -69 442
-69 234 HDE 269891 269888
DM -69 429 Delete
-69 245 Alt AL-380 Add
-69 258 DM -69 479
-69 259 Alt MWC126 Add
DM -69 478
-69 261 Alt L-312: Delete
-69 262 Alt 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 Alt MWC97 Add
-70 30a Alt S152 Add
-70 92 Alt L-241: L-241
-70 98 HDE 269664
-70 109 Alt S168 Add
-70 111 HDE 269992 269993
-70 111 DM -69 503 -70 435
-71 23 DM -71 336
-71 33 Alt S167,L-254 Add
-71 34 Alt L-264: L-264
-71 35 Alt L-270: L-270
-71 50 Alt L-317: L-317
---------------------------------------------
References:
Andrews A.D., Lindsay E.M. 1964, Irish Astron. Journal, 6, 241.
(1964IrAJ....6..241A 1964IrAJ....6..241A)
Bok B.J., Bok P.F., Basinski J.M. 1962, Monthly Notices Roy. Astron.
Soc. 123, 487 (1962MNRAS.123..487B 1962MNRAS.123..487B)
Feast M.W., Thackeray A.D., Wesselink A. J. 1960, Monthly Notices Roy.
Astron. Soc. 121, 337 (1960MNRAS.121..337F 1960MNRAS.121..337F)
Fehrenbach Ch., Duflot M., Duflot A. 1965, Journ. des obs. 48, 185, 199.
(1965JO.....48..185F 1965JO.....48..185F)
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 (1956ApJS....2..315H 1956ApJS....2..315H)
Hodge P.W., Wright F.W. 1967, The Large Magellanic Cloud, Smithsonian
Publication 4699 (Washington D.C.: Smithsonian Press)
(1967SAOP.4699....1H 1967SAOP.4699....1H)
Lindsay E.M. 1963, Irish Astron. Journal 6, 127 (1963IrAJ....6..127L 1963IrAJ....6..127L)
Merrill P.W., Burwell C.G. 1933, Astrophys. J. 78, 87
(1933ApJ....78...87M 1933ApJ....78...87M)
Merrill P.W., Burwell C.G. 1943, Astrophys. J. 98, 153
(1943ApJ....98..153M 1943ApJ....98..153M)
Merrill P.W., Burwell C.G. 1949, Astrophys. J. 110, 387.
(1949ApJ...110..387M 1949ApJ...110..387M)
Nassau J.J., Stephenson C.B. 1960, Astrophys. J. 132, 130.
(1960ApJ...132..130N 1960ApJ...132..130N)
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.
(1955Obs....75...33T 1955Obs....75...33T)
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 (1961UppAn...5a...1W 1961UppAn...5a...1W)
Westerlund B.E., Smith L.F. 1964, Monthly Notices Roy. Astron. Soc.
128, 311 (1964MNRAS.128..311W 1964MNRAS.128..311W)
Woolley K.v.d.R. 1963, Roy. Obs. Bull. No. 66 (1963RGOB...66..263W 1963RGOB...66..263W)
(End) Brian Skiff (Lowell Obs.), Francois Ochsenbein [CDS] 17-Feb-2008