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 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:
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FileName Lrecl Records Explanations
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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)
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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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)
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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
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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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)
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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 2009A&A...507..251C)
4 = Caballero (2010A&A...514A..98C 2010A&A...514A..98C)
5 = Bahcall & Soniera (1981ApJ...246..122B 1981ApJ...246..122B)
6 = Latham et al. (1984ApJ...281L..41L 1984ApJ...281L..41L)
7 = Makarov et al. (2008ApJ...687..566M 2008ApJ...687..566M)
8 = Zapatero Osorio & Martin (2004, Cat. J/A+A/419/167)
9 = Faherty et al. (2010AJ....139..176F 2010AJ....139..176F)
10 = Chaname & Gould (2004ApJ...601..289C 2004ApJ...601..289C)
11 = Quinn et al. (2009MNRAS.396L..11Q 2009MNRAS.396L..11Q)
12 = Poveda et al. (2009ApJ...706..343P 2009ApJ...706..343P)
13 = Allen et al. (2000, Cat. J/A+A/356/529)
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History:
From electronic version of the journal
References:
Dhital et al. Paper II. 2012AJ....143...67D 2012AJ....143...67D Cat. J/AJ/143/67
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 02-Jun-2012