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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
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). 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). 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 (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)
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, 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)
Note (1): the source of position uses the following symbols: c = AC 2000 (1998AJ....115.1212U, I/275, for Sk-69 202) D = DENIS (1999A&A...349..236E, B/denis) g = GSC-2.3 (2006yCat.1305.....S, I/305) G = GSC-ACT (1999yCat.1255.....G, I/255) M = 2MASS (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, I/259) U = UCAC2 (2004AJ....127.3043Z, I/289)
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)
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): List of H-α emission stars BBB = Bok, Bok and Basinski (1962MNRAS.123..487B): Color-magnitude arrays for two associations FDD = Fehrenbach, Duflot and Duflot (1965JO.....48..185F): List of stars having very large radial velocities indicating LMC membership HV = Hodge and Wright (1967SAOP.4699....1H): List of Harvard variables L = Lindsay (1963IrAJ....6..127L): List of H-α emission stars MWC = Merrill and Burwell (1933ApJ....78...87M, 1943ApJ....98..153M, 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): Spectroscopic and photometric data for known bright LMC members S = Henize (1956ApJS....2..315H): List of H-α emission stars W = Westerlund (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): Proper motions for stars in a one degree region WS = Westerlund and Smith (1964MNRAS.128..311W): A list of Wolf-Rayet stars
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
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) Bok B.J., Bok P.F., Basinski J.M. 1962, Monthly Notices Roy. Astron. Soc. 123, 487 (1962MNRAS.123..487B) Feast M.W., Thackeray A.D., Wesselink A. J. 1960, Monthly Notices Roy. Astron. Soc. 121, 337 (1960MNRAS.121..337F) Fehrenbach Ch., Duflot M., Duflot A. 1965, Journ. des obs. 48, 185, 199. (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) Hodge P.W., Wright F.W. 1967, The Large Magellanic Cloud, Smithsonian Publication 4699 (Washington D.C.: Smithsonian Press) (1967SAOP.4699....1H) Lindsay E.M. 1963, Irish Astron. Journal 6, 127 (1963IrAJ....6..127L) Merrill P.W., Burwell C.G. 1933, Astrophys. J. 78, 87 (1933ApJ....78...87M) Merrill P.W., Burwell C.G. 1943, Astrophys. J. 98, 153 (1943ApJ....98..153M) Merrill P.W., Burwell C.G. 1949, Astrophys. J. 110, 387. (1949ApJ...110..387M) Nassau J.J., Stephenson C.B. 1960, Astrophys. J. 132, 130. (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) 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) Westerlund B.E., Smith L.F. 1964, Monthly Notices Roy. Astron. Soc. 128, 311 (1964MNRAS.128..311W) Woolley K.v.d.R. 1963, Roy. Obs. Bull. No. 66 (1963RGOB...66..263W)
(End) Brian Skiff (Lowell Obs.), Francois Ochsenbein [CDS] 17-Feb-2008
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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