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V/125       Photometry and Spectroscopy for Luminous Stars      (Reed 2005)

New estimates of the solar-neighborhood massive star birthrate and the galactic supernova rate. Reed C. <Astron. J. 125, 2531 (2003), Astron. J. 130, 1652 (2005)> =2003AJ....125.2531R +2005AJ....130.1652R
ADC_Keywords: Photometry, UBV ; Photometry, uvby, beta ; Radial velocities ; MK spectral classification ; Stars, luminous ; Milky Way Keywords: stars: early-type - supernovae: general Description: This catalogue supersedes the previous version (VI/92). The last update is 01 July 2005. This project originated in the summer of 1991 when the author began compiling a cross-reference catalog and tabulation of published UBVβ photometry for stars listed in Stephenson and Sanduleak's Luminous Stars in the Southern Milky Way (Cat. III/43). This database was published in July 1993 (1993ApJS...87..367R) and was subsequently expanded to include compilations of published MK classifications (1995ApJS...97..189R), 4-color photometry (1996A&AS..117..313R), and radial velocities (1997AJ....113..823R) for these objects. In mid-1997 the project was again expanded to include UBVβ photometry for stars listed in the northern-hemisphere volumes of the "Case-Hamburg" (Cat. III/76) surveys (Cat. J/ApJS/115/271); MK classifications for the northern stars were similarly compiled and made electronically available to interested parties, though were not formally published. Work on the radial velocity and four-color compilations has since been discontinued, but interested readers may still obtain those (for the LS-South stars) from the author. Most of the LS objects are OB stars, but there are as well a number of A, F, and G supergiants and a few white dwarfs and Wolf Rayet stars. These surveys reached a limiting photographic magnitude of ∼13.5, and were based on objective-prism surveys of dispersion 580Å/mm at Hγ More details can be found in the files "obnotes.htm" (HTML format). Abstract of the paper: The birthrate of stars of masses ≥10M is estimated from a sample of just over 400 O3-B2 dwarfs within 1.5kpc of the Sun and the result extrapolated to estimate the Galactic supernova rate contributed by such stars. The solar-neighborhood Galactic-plane massive star birthrate is estimated at ∼176stars/kpc3/Myr. On the basis of a model in which the Galactic stellar density distribution comprises a "disk+central hole" like that of the dust infrared emission (as proposed by Drimmel and Spergel), the Galactic supernova rate is estimated at probably not less than ∼1 nor more than ∼2 per century and the number of O3-B2 dwarfs within the solar circle at ∼200000. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file obnotes.htm 163 8327 Original description of the catalog obcat.dat 138 18693 Catalog of star names/identifiers, positions, and cross-references, ordered by increasing RA obmk.dat 199 22885 Collation of MK classifications obubvbet.dat 188 37962 Collation of UBV-beta data radvel.dat 148 1072 *Radial velocity data notes.dat 80 909 Remarks on individual stars
Note on radvel.dat: concerns only the Southern stars, from Reed and Kuhna, from 1997AJ....113..823R
See also: III/43 : Luminous Stars in the Southern Milky Way (Stephenson+ 1971) III/76 : Luminous Stars in the Northern Milky Way (LS) (Hardorp+ 1959-1965) I/150 : Proper Motions for High Luminosity Stars (Valitova+ 1990) II/154 : Individual UBV Observations of LSS Stars (Drilling 1989) J/AJ/112/2855 : UBV Photometry of LSS stars (Reed+ 1996) J/ApJS/115/271 : UBV-beta Database for LS Stars (Reed. 1998) Byte-by-byte Description of file: obcat.dat
Bytes Format Units Label Explanations
2- 6 I5 --- ALS Alma LS number (G1) 8- 32 A25 --- Name Source name 34- 41 A8 --- DM BD identifier: BD, CD, or CP 43- 51 A9 --- CPD CPD identifier 53- 61 A9 --- CD Cordoba Durchmustering 63- 68 I6 --- SAO ? SAO (Cat. I/131) number 70- 75 I6 --- HD ? HD (Cat. III/135) number 77- 80 I4 --- HR ? Bright Star (Cat. V/50) number 82- 91 A10 --- OName ?=- Other name 93- 97 F5.1 mag mag ?=99.9 magnitude, see n_mag 99 A1 --- n_mag [PVN] Type of magnitude: V=pe, P=pg, N=none 101-102 I2 h RAh Right Ascension J2000 (hours) 104-105 I2 min RAm Right Ascension J2000 (minutes) 107-110 F4.1 s RAs [0,60] Right Ascension J2000 (seconds) 112 A1 --- DE- Declination J2000 (sign) 113-114 I2 deg DEd Declination J2000 (degrees) 116-117 I2 arcmin DEm Declination J2000 (minutes) 119-120 I2 arcsec DEs [0,60] Declination J2000 (seconds) 122-129 F8.2 deg GLON Galactic longitude 131-138 F8.2 deg GLAT Galactic latitude
Byte-by-byte Description of file: obmk.dat
Bytes Format Units Label Explanations
2- 6 I5 --- ALS Alma LS number (G1) 8- 32 A25 --- Name Source name 34- 44 A11 --- DM DM identification 46- 51 I6 --- HD ? HD (Cat. III/135) number 53- 60 A8 --- TC Temperature Class 62- 69 A8 --- LC Luminosity Class 71- 78 A8 --- Pec Spectral-luminosity qualifier (pecularities) 80- 99 A20 --- Disp Dispersion description 101-120 A20 --- Notes ?=- Remarks 125-126 I2 h RAh Right ascension (J2000.0) 127 A1 --- --- [.] 128-129 I2 min RAm Right ascension (J2000.0) 130-131 I2 s RAs [0/60] Right ascension (J2000.0) 135 A1 --- DE- Declination sign (J2000.0) 136-137 I2 deg DEd Declination (J2000.0) 138 A1 --- --- [.] 139-140 I2 arcmin DEm Declination (J2000.0) 141-142 I2 arcsec DEs [0/60] Declination (J2000.0) 144-162 A19 --- BibCode BibCode of reference 164-188 A25 --- Author First author 190-199 A10 --- Rem Remarks and other identifications
Byte-by-byte Description of file: obubvbet.dat
Bytes Format Units Label Explanations
2- 6 I5 --- ALS Alma LS number (G1) 7 A1 --- n_ALS [*] indicates a note detailed in notes.dat 8- 33 A26 --- Name Source name 35- 45 A11 --- DM DM identification 47- 52 I6 --- HD ? HD (Cat. III/135) number 54- 58 F5.2 --- Vmag ?=99.99 V magnitude 62- 66 F5.2 mag B-V ?=99.99 B-V color index 68- 72 F5.2 mag U-B ?=99.99 U-B color index 75- 77 I3 --- o_Vmag Number of UBV observations 79- 84 F6.3 mag Hbeta ?=99.990 Hbeta index 86- 88 I3 --- o_Hbeta Number of Hbeta observations 90-109 A20 --- Notes Short notes about the photometry 114-115 I2 h RAh Right ascension (J2000.0) 116 A1 --- --- [.] 117-118 I2 min RAm Right ascension (J2000.0) 119-120 I2 s RAs [0/60] Right ascension (J2000.0) 124 A1 --- DE- Declination sign (J2000.0) 125-126 I2 deg DEd Declination (J2000.0) 127 A1 --- --- [.] 128-129 I2 arcmin DEm Declination (J2000.0) 130-131 I2 arcsec DEs [0/60] Declination (J2000.0) 133-151 A19 --- BibCode BibCode 153-177 A25 --- Author First author 179-188 A10 --- Rem Remarks/other identifications
Byte-by-byte Description of file: radvel.dat
Bytes Format Units Label Explanations
1- 4 I4 --- ALS [1/5132] LSS Number (G1) 5 A1 --- n_ALS [*] indicates a remark detailed in notes.dat 7- 12 I6 --- HD ?HD number 14- 22 A9 --- CD CD (Cat. I/114) designation 24- 29 F6.1 km/s RV Radial velocity 31- 35 F5.1 km/s e_RV Standard deviation for RV 37- 38 I2 --- o_RV Number of observations of RV 40- 59 A20 --- Disp *Dispersion 61- 69 A9 --- Notes Variable type or other note 71- 74 F4.1 mag Pmag LSS photographic magnitude 76- 79 I4 yr publ Year of publication 81-104 A24 --- auth First author 106-125 A20 --- ref Reference 127-132 F6.2 deg GLON Galactic longitude 134-139 F6.2 deg GLAT Galactic latitude 141-148 A8 --- name Alternate name of star
Note on Disp: The format of the majority of the dispersions is: type of instrument used, dispersion in A/mm and the wavelength at which the dispersion applies. These records incorporate a number of abbreviations, as follows: A Angstrom d Hydrogen delta g Hydrogen gamma m/A microns per Angstrom Cass Cassegrain spectrum 1P 1-prism 2P 2-prism 3P 3-prism C Coude spectrum G Grating spectrum (reflection or transmission not specified) IT Image tube spectrum OP Objective-prism P Prism RG Reflection grating S Slit TG Transmission grating TP Thin prism
Byte-by-byte Description of file: notes.dat
Bytes Format Units Label Explanations
1- 5 I5 --- ALS ALS number (G1) 6 A1 --- --- [/] 7- 11 I5 --- ALS2 ? Second ALS number for binaries 13- 80 A68 --- Text Text of the note (2)
Note (2): For stars from the original Case-Hamburg (CH) catalog, the note began with the photographic magnitude(s) given in the CH catalog, otherwise the photoelectric B magnitude, in parentheses.
Global Notes: Note (G1): Identification numbers 1-5032 correspond to Stephenson's Luminous Stars in the Southern Milky Way (1971PW&SO...1....1S, Cat. III/43). Identification numbers 6001 through 13390 have been assigned to the LS-North stars (Cat. III/76), in increasing order of 1950-epoch right ascension. Notes for LS-North stars follow the same format as for LS-South stars, but with addition of the original LS-North identification numbers in square brackets, in the Note.
Acknowledgements: Much of the spectroscopic data for the southern Case-Hamburg stars were checked and keypunched by Amy Beatty. This research has made use of the Simbad database, operated at CDS, Strasbourg, France. I am grateful to the inter-library loan staff at Alma College for tracking down a number of references, and to the Office of the Provost of Alma College for support of publication costs. Special thanks are due Brian Skiff of Lowell Observatory for forwarding me coordinates and cross-identifications for a number of objects. This research was supported at various times by awards from Research Corporation and the RUI program of the National Science Foundation (AST-9731179). B. Cameron Reed History: * 10-Jul-2005: original version from B. Cameron Reed * 09-Feb-2008: added file "radvel.dat" (from previous version V/92)
(End) Francois Ochsenbein [CDS] 10-Jul-2005
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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