I/298 LSPM-North Catalog (Lepine+ 2005)
A Catalog of Northern stars with annual proper motions larger than 0.15" Lepine S., Shara M.M. <Astron. J. 129, 1483 (2005)> =2005AJ....129.1483L
ADC_Keywords: Surveys; Proper motions; Stars, nearby; Stars, high-velocity Keywords: astrometry - solar neighborhood - stars: kinematics - stars: Population II - surveys - white dwarfs Description: The LSPM catalog is a comprehensive list of 61,977 stars north of the J2000 celestial equator that have proper motions larger than 0.15"/yr (local-background-stars frame). The catalog has been generated primarily as a result of our systematic search for high proper motion stars in the Digitized Sky Surveys using our SUPERBLINK software. At brighter magnitudes, the catalog incorporates stars and data from the Tycho-2 Catalogue (I/259) and also, to a lesser extent, from the All-Sky Compiled Catalogue of 2.5million stars (ASCC-2.5, Cat. I/280). The LSPM catalog considerably expands over the old Luyten (Luyten Half-Second [LHS, Cat. I/87] and New Luyten Two-Tenths [NLTT, Cat. I/98]) catalogs, superseding them for northern declinations. Positions are given with an accuracy of ≲100 mas at the 2000.0 epoch, and absolute proper motions are given with an accuracy of ∼8 mas/yr. Corrections to the local-background-stars proper motions have been calculated, and absolute proper motions in the extragalactic frame are given. Whenever available, we also give optical BT and VT magnitudes (from Tycho-2, ASCC-2.5), photographic BJ, RF, and IN magnitudes (from USNO-B1 catalog, I/284), and infrared J, H, and Ks magnitudes (from 2MASS, Cat. II/246). We also provide an estimated V magnitude and V-J color for nearly all catalog entries, useful for initial classification of the stars. The catalog is estimated to be over 99% complete at high Galactic latitudes (|b|>15°) and over 90% complete at low Galactic latitudes (|b|>15°), down to a magnitude V=19.0, and has a limiting magnitude V=21.0. All the northern stars listed in the LHS and NLTT catalogs have been reidentified, and their positions, proper motions, and magnitudes reevaluated. The catalog also lists a large number of completely new objects, which promise to expand very significantly the census of red dwarfs, subdwarfs, and white dwarfs in the vicinity of the Sun. All Luyten's NLTT stars north of the J2000 celestial equator that do not appear in the LSPM catalog are given in table3, with an explanation as to why they were not included in the LSPM catalog. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file lspm_n.dat 257 61977 The LSPM catalog (north) table3.dat 94 1859 NLTT stars not listed in the LSPM catalog
See also: I/87 : LHS Catalogue, 2nd Edition (Luyten 1979) I/98 : NLTT Catalogue (Luyten, 1979) I/259 : The Tycho-2 Catalogue (Hog+ 2000) I/280 : All-sky Compiled Catalogue of 2.5 million stars (Kharchenko 2001) I/284 : The USNO-B1.0 Catalog (Monet+ 2003) I/289 : UCAC2 Catalogue (Zacharias+ 2004) II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003) J/ApJ/582/1011 : Revised NLTT Catalog (Salim+, 2003) J/AJ/124/1190 : Northern high proper motion stars in DSS (Lepine+, 2002) J/AJ/125/1598 : New high proper motion stars in Northern sky (Lepine+, 2003) Byte-by-byte Description of file: lspm_n.dat
Bytes Format Units Label Explanations
1- 4 A4 --- --- [LPSM] 6- 16 A11 --- LSPM LSPM star name (1) 18- 22 A5 --- LHS ? LHS catalogue (I/87) identification 24- 28 I5 --- NLTT ? NLTT catalogue (I/98) identification (2) 30- 35 I6 --- HIP ? Hipparcos catalog (I/239) identification 37- 40 I4 --- TYC1 ? Tycho-2 catalog (I/259) identification 42- 45 I4 --- TYC2 ? Tycho-2 catalog (I/259) identification 47 I1 --- TYC3 ? Tycho-2 catalog (I/259) identification 49- 55 I7 --- ASCC2.5 ? ASCC2.5 catalog (I/280) identification 57- 64 I8 --- UCAC2 ? UCAC2 catalog (I/289) identification 66- 95 A30 --- OName Original name in astronomical literature (3) 97-112 A16 --- 2MASS 2MASS catalog (II/246) identification 114-125 A12 --- USNO-B1 USNO-B1.0 catalog (I/284) identification 128-137 F10.6 deg RAdeg Right Ascension in degrees (J2000, Ep=J2000) 139-148 F10.6 deg DEdeg Declination in degrees (J2000, Ep=J2000) 150-156 F7.3 arcsec/yr rPM Total relative Proper Motion (4) 158-164 F7.3 arcsec/yr rPMRA Relative proper Motion in Right Ascension (4) 166-172 F7.3 arcsec/yr rPMDE Relative Proper Motion in Declination (4) 174-180 F7.3 arcsec/yr pm Total Proper Motion (5) 182-188 F7.3 arcsec/yr pmRA Proper Motion in Right Ascension (5) 190-196 F7.3 arcsec/yr pmDE Proper Motion in Declination (5) 198-199 A2 --- Aflag [ASTO ] Astrometric Flag (6) 201-205 F5.2 mag Bmag ?=99.99 Optical B magnitude (7) 207-211 F5.2 mag Vmag ?=99.99 Optical V magnitude (7) 213-216 F4.1 mag BJmag ?=99.9 Photographic Blue (IIIaJ) magnitude (8) 218-221 F4.1 mag RFmag ?=99.9 Photographic Red (IIIaF) magnitude (8) 223-226 F4.1 mag INmag ?=99.9 Photographic Infrared (IVN) mag. (8) 228-232 F5.2 mag Jmag ?=99.99 Infrared J magnitude (9) 234-238 F5.2 mag Hmag ?=99.99 Infrared H magnitude (9) 240-244 F5.2 mag Kmag ?=99.99 Infrared K_s_ magnitude (9) 246-251 F6.2 mag Vemag ?=99.9 Estimated V magnitude (10) 253-257 F5.2 mag V-J ?=99.9 Estimated V-J color (10)
Note (1): Name based on J2000 position. Note (2): NLTT catalog identification is the record number (recno) in the original NLTT table (Cat. I/87) Note (3): Original name of the star in the literature, as determined from a search in the Simbad database. In the current version of the catalog, OName is only given for stars that have no counterpart in neither of the LHS, NLTT, HIP, Tycho-2, ASCC2.5, or UCAC2 catalogs, and it is meant to distinguish, among stars with only an LSPM identifier, those that have been reported previously in the literature from those that are genuine, "new" discoveries. Note (4): Relative proper motions, as calculated by the SUPERBLINK software. This is the proper motion of the star measured relative to the mean position of all objects within 4 arcminutes. Values are only provided for stars detected by SUPERBLINK. Note (5): Absolute proper motions, determined relative to a fixed reference frame. The ICRS reference frame defined by Tycho-2/2MASS positions is used. Absolute proper motions of stars detected by SUPERBLINK are obtained by applying zonal corrections to the relative proper motions. The local zonal correction vectors can be recovered by comparing [pmRA,pmDE] to [rPMRA,rPMDE]. Note (6): the letters refer to the following sources: A = ASCC-2.5 Catalog; S = SUPERBLINK proper motion, 2MASS position; T = Tycho-2 Catalog; O = Other source. Note (7): Optical magnitudes from the Tycho-2 and ASCC-2.5 catalog. The B, V from Tycho-2 are obtained after a conversion from BT and VT following the prescription of the introduction to the Hipparcos and Tycho catalog. B and V magnitudes are extracted directly from the ASCC-2.5, for stars that are not in the Tycho-2 catalog. Note (8): Photographic photometry from the POSS-II plates. All values are from the USNO-B1.0 catalog for stars with USNO-B1 identifications. Values for stars with no USNO-B1 identifications have been calculated separately from Digitized Sky Survey scans. Note (9): All values are from the 2MASS All-Sky Point Source Catalog. Note (10): Optical V magnitude and optical-to-infrared V-J color estimated for every star from available photometry. Stars with no Tycho-2/ASCC-2.5 photometry have Ve estimated from the photographic BJ and RF magnitudes. Stars with no 2MASS counterparts have their V-Je estimated with the help of IN.
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 6 I6 --- NLTT NLTT catalog number (1) 8- 15 F8.3 deg RALdeg Right Ascension in degrees (J2000) in the NLTT catalog 17- 24 F8.3 deg DELdeg Declination in degrees (J2000) in the NLTT catalog 26- 29 F4.1 mag rmag Red magnitude in the NLTT catalog 31- 34 F4.1 mag bmag Photographic blue magnitude in NLTT catalog 36- 41 F6.3 arcsec/yr pmL Proper motion in NLTT catalog 43- 45 I3 deg pmLPA Proper motion angle in NLTT catalog 47 A1 --- why [BDLNST] Explicative flag (2) 49- 59 F11.6 deg RAdeg Right Ascension in degrees (J2000) 61- 70 F10.6 deg DEdeg Declination in degrees (J2000) 72- 78 F7.3 arcsec/yr pm Proper motion 80- 86 F7.3 arcsec/yr pmRA Proper motion in Right Ascension 88- 94 F7.3 arcsec/yr pmDE Proper Motion in Declination
Note (1): NLTT catalog identification is the record number (recno) in the original NLTT table (Cat. I/98) Note (2): the letter means the following: B = Object does not show up on POSS plates (bogus?); D = Object is a duplicate of another NLTT star; L = Object too slow according to NLTT catalog; N = Object is a proper motion nebula; S = Object too slow according to SUPERBLINK; T = Object too slow according to Tycho-2 catalog. Detailed explanations are in the "NLTT stars missing" section below.
NLTT stars missing in the LSPM catalog: A flag value of "B" indicates that the star could not be found by direct examination of the Digitized Sky Survey scans of the Palomar Sky Survey (POSS) photographic plates. This means that an area 3 arcmin from the NLTT position was searched for signs of a moving object, and none was found with a significant proper motion. The star is suspected to be either a bogus NLTT entry, or to have a very large error on its NLTT position. If the latter is true, then the object most probably figures in the LSPM catalog as a "new" high proper motion star. Corrected positions and proper motions are listed as "0.0". A flag value of "D" means that the object is a duplicate NLTT catalog entry. The object exists, but is already accounted for under a different NLTT catalog number. Corrected positions and proper motions are listed as "0.0". A total of 38 stars in the table fall in this category. A flag value of "L" means that the star has an NLTT proper motion under the nominal lower limit (0.15 arcsec per year) of the LSPM catalog. Objects with this flag didn't have their proper motion remeasured with SUPERBLINK, however. Only 3 stars in the table fall in this category. A flag value of "N" means that although the object was found to be real, it is not a star but rather a proper motion nebula. The nebular nature of the objects was confirmed from direct inspection of Digitized Sky Survey images of POSS plate. This is the case for only 2 NLTT objects (NLTT 13414 and NLTT 13424). A flag value of "S" means that the proper motion of the star was remeasured by SUPERBLINK, and found to be under the nominal lower limit (0.15 arcsec per year) of the LSPM catalog. Corrected positions and proper motions are provided. A flag value of "T" means that the star is in the Tycho-2 catalog, and that its Tycho-2 proper motion is under the nominal lower limit (0.15 arcsec per year) of the LSPM catalog. Corrected positions and proper motions are provided. Acknowledgments: Prepared by S. Levine.
(End) Greg Schwarz [AAS], Francois Ochsenbein [CDS] 19-Jul-2005
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