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J/AJ/139/2566       SLoWPoKES catalog                        (Dhital+, 2010)

Sloan low-mass wide pairs of kinematically equivalent stars (SLoWPoKES): a catalog of very wide, low-mass pairs. Dhital S., West A.A., Stassun K.G., Bochanski J.J. <Astron. J., 139, 2566-2586 (2010)> =2010AJ....139.2566D
ADC_Keywords: Stars, double and multiple ; Photometry, SDSS ; Proper motions Keywords: binaries: general - binaries: visual - brown dwarfs - stars: late-type - stars: low-mass - stars: statistics - subdwarfs - white dwarfs Abstract: We present the Sloan Low-mass Wide Pairs of Kinematically Equivalent Stars (SLoWPoKES), a catalog of 1342 very-wide (projected separation ≳500AU), low-mass (at least one mid-K to mid-M dwarf component) common proper motion pairs identified from astrometry, photometry, and proper motions in the Sloan Digital Sky Survey. A Monte Carlo-based Galactic model is constructed to assess the probability of chance alignment for each pair; only pairs with a probability of chance alignment ≤0.05 are included in the catalog. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 206 1342 Properties of SLoWPoKES pairs table5.dat 72 85 A sub-sample of previously known wide binaries with the projected separation ~>104AU (∼0.05pc)
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 3 A3 --- --- [SLW] 5- 11 A7 --- SLW Object identification, HHMM+DD (1) 13- 22 F10.6 deg RAdeg Primary Right Ascension (J2000) 24- 33 F10.6 deg DEdeg Primary Declination; decimal degrees (J2000) 35- 44 F10.6 deg RA2deg Secondary Right Ascension (J2000) 46- 55 F10.6 deg DE2deg Secondary Declination (J2000) 57- 61 F5.2 mag rmag1 Primary SDSS r band magnitude (2) 63- 66 F4.2 mag e_rmag1 Error in rmag1 68- 72 F5.2 mag imag1 Primary SDSS i band magnitude (2) 74- 77 F4.2 mag e_imag1 Error in imag1 79- 83 F5.2 mag zmag1 Primary SDSS z band magnitude (2) 85- 88 F4.2 mag e_zmag1 Error in zmag1 90- 94 F5.2 mag rmag2 Secondary SDSS r band magnitude (2) 96- 99 F4.2 mag e_rmag2 Error in rmag2 101-105 F5.2 mag imag2 Secondary SDSS i band magnitude (2) 107-110 F4.2 mag e_imag2 Error in imag2 112-116 F5.2 mag zmag2 Secondary SDSS z band magnitude (2) 118-121 F4.2 mag e_zmag2 Error in zmag2 123-126 I4 mas/yr pmRA1 Primary proper motion in Right Ascension 128 I1 mas/yr e_pmRA1 Error in pmRA1 130-133 I4 mas/yr pmDE1 Primary proper motion in Declination 135 I1 mas/yr e_pmDE1 Error in pmDE1 137-140 I4 mas/yr pmRA2 Secondary proper motion in Right Ascension 142 I1 mas/yr e_pmRA2 Error in pmRA2 144-147 I4 mas/yr pmDE2 Secondary proper motion in Declination 149 I1 mas/yr e_pmDE2 Error in pmDE2 151-154 I4 pc Dist1 Primary distance (3) 156-159 I4 pc Dist2 Secondary distance (3) 161-167 A7 --- SpT.1 Primary spectral type (4) 169-175 A7 --- SpT.2 Secondary spectral type (4) 177-181 F5.1 arcsec Delta Binary angular separation Δθ 183-186 F4.1 mas/yr Dmu Difference in proper motion Δµ 188-189 I2 pc Ddist Difference in distance Δd 191-197 F7.2 10+33J BE Binding energy of binary (1040erg) 199-203 F5.3 % Pf [0/0.05] False positive probability 205-206 A2 --- Class Type of SLowPoKES pair (5)
Note (1): The identifiers were generated using the standard JHHMM+DD format using coordinates of the primary star. Note (2): All magnitudes are psfmag and have not been corrected for extinction. Note that we use extinction-corrected magnitudes in our analysis. Note (3): Calculated using photometric parallax relations and have 1σ errors of ∼14%. The absolute distances to subdwarfs (SDs) are overestimated (see Section 2.4.1). Note (4): The spectral types were inferred from the r-z colors (West et al. 2008, Cat. J/AJ/135/785; Covey et al. 2007, Cat. J/AJ/134/2398) and are correct to ±1 subtype. Note (5): Type of SLowPoKES pair as follows: DD = Disk dwarf SD = Subdwarf WD = White dwarf-disk dwarf T = Triple
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 13 A13 --- ID.1 Primary component identification (1) 15- 30 A16 --- ID.2 Secondary component identification (1) 32- 38 F7.2 arcsec Delta Angular separation of CPM pair 40- 45 I6 AU Sep Projected physical separation of CPM pairs 47- 51 A5 --- SpT.1 Primary component spectral type (2) 53- 58 A6 --- SpT.2 Secondary component spectral type (2) 60- 65 F6.2 10+33J BE Binding energy of CPM pair; 1040ergs (3) 67- 72 A6 --- Refs Reference(s) (4)
Note (1): We have tried to use HIP and NLTT identifiers, whenever they exist, for consistency. Note (2): Spectral types are from the referenced papers, SIMBAD, or inferred from their V-J colors using Kenyon & Hartmann (1995, Cat. J/ApJS/101/117). Note (3): Binding energies are calculated using estimated masses as a function of spectral type Kraus & Hillenbrand (2007, Cat. J/AJ/134/2340). When spectral type for the secondary was not available, it was assumed to be an equal-mass binary. Note (4): References as follows: 1 = Lepine & Bongiorno (2007, Cat. J/AJ/133/889) 2 = Caballero (2007, Cat. J/ApJ/667/520) 3 = Caballero (2009A&A...507..251C) 4 = Caballero (2010A&A...514A..98C) 5 = Bahcall & Soniera (1981ApJ...246..122B) 6 = Latham et al. (1984ApJ...281L..41L) 7 = Makarov et al. (2008ApJ...687..566M) 8 = Zapatero Osorio & Martin (2004, Cat. J/A+A/419/167) 9 = Faherty et al. (2010AJ....139..176F) 10 = Chaname & Gould (2004ApJ...601..289C) 11 = Quinn et al. (2009MNRAS.396L..11Q) 12 = Poveda et al. (2009ApJ...706..343P) 13 = Allen et al. (2000, Cat. J/A+A/356/529)
History: From electronic version of the journal References: Dhital et al. Paper II. 2012AJ....143...67D Cat. J/AJ/143/67
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 02-Jun-2012
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