J/AJ/124/1190 Northern high proper motion stars in DSS (Lepine+, 2002)
New high proper motion stars from the Digitized Sky Survey.
I. Northern stars with 0.5"/yr<µ<2.0"/yr at low galactic latitudes.
Lepine S., Shara M.M., Rich R.M.
<Astron. J. 124, 1190 (2002)>
=2002AJ....124.1190L 2002AJ....124.1190L
ADC_Keywords: Surveys ; Proper motions
Keywords: astrometry - solar neighborhood - stars: kinematics - surveys
Abstract:
We have conducted a systematic search for high proper motion stars in
the Digitized Sky Survey, in the area of the sky north of -2.8 degrees
in declination and within 25 degrees of the Galactic plane. Using the
SUPERBLINK software, a powerful automated blink comparator developed
by us, we have identified 601 stars in the magnitude range 9<r<20 with
proper motions in the range 0.5"/yr<µ<2.0"/yr which have not been
observed with the Hipparcos satellite. Among those, we recovered 460
stars previously listed in Luyten's proper motion catalogs
(LHS I/87, NLTT I/98) and discovered 141 new high proper motion
stars, ranging in magnitude from R=13.0 to R=19.8. Only nine stars
from the Luyten catalogs that were not observed by Hipparcos could not
be recovered with SUPERBLINK: three had proper motions larger than the
search limit of the code (µ>2.0"/yr), and five were missed because
they were either too bright for SUPERBLINK to handle or they are in
the immediate proximity of very bright stars. Only one of Luyten's
stars (LHS 1657) could not be recovered at all, even by visual
inspection of the POSS plates, and is now suspected to be bogus. The
very high success rate in the recovery by SUPERBLINK of faint Luyten
stars suggests that our new survey of high proper motion stars is at
least 99% complete for stars with proper motions 0.5"/yr<µ<2.0"/yr
down to R=19. This paper includes a list of positions, proper motions,
magnitudes, and finder charts for all the new high proper motion
stars.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 83 28 *Retranscription errors in the Luyten catalogs
table3.dat 43 25 µ>0.5"/yr NLTT stars not listed in the LHS catalog
table4.dat 59 141 New Stars with µ>0.5"/yr at Low Galactic Latitudes
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Note on table1.dat: Stars with µ>0.5"/yr listed in both the LHS and NLTT
catalogs, but for which one of the coordinates has a positional error of 5'
or larger.
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See also:
J/AJ/125/1598 : New high proper motion stars in the northern sky
(Lepine+, 2003)
I/87 : LHS Catalogue, 2nd Edition (Luyten 1979)
I/279 : Revised Luyten Half-Second Catalogue (Bakos+ 2002)
I/98 : NLTT Catalogue (Luyten, 1979)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- LHS LHS (LHS Catalogue, 2nd Edition (Luyten 1979))
catalog designation
6- 7 I2 h RAh LHS Right ascension (1950)
9- 10 I2 min RAm LHS Right ascension (1950)
12- 13 I2 s RAs LHS Right ascension (1950)
15 A1 --- --- [(] (: Erroneous declination in the
original table
16 A1 --- DE- LHS Declination sign (1950)
17- 18 I2 deg DEd LHS Declination (1950)
20- 23 F4.1 arcmin DEm LHS Declination (1950)
24 A1 --- u_DEm [)] ): Erroneous declination in the
original table
26- 29 F4.1 mag rmag LHS "red" magnitude ?
31- 35 F5.3 arcsec/yr pm LHS proper motion
37- 41 F5.1 deg pmPA LHS position angle of proper motion
43- 47 I5 --- NLTT NLTT catalog (Cat. I/98) record number
("recno" in VizieR)
49 A1 --- --- [(] (: Erroneous right ascension in the
original table
50- 51 I2 h RANh NLTT Right ascension (1950)
53- 54 I2 min RANm NLTT Right ascension (1950)
56- 57 I2 s RANs NLTT Right ascension (1950)
58 A1 --- u_RANs [)] ): Erroneous right ascension in the
original table
59 A1 --- --- [(] (: Erroneous declination in the
original table
60 A1 --- DEN- NLTT Declination sign (1950)
61- 62 I2 deg DENd LTT Declination (1950)
64- 67 F4.1 arcmin DENm Declination (1950)
68 A1 --- u_DENm [)] ): Erroneous declination in the
original table
70- 73 F4.1 mag rmagN NLTT "red" magnitude
75- 79 F5.3 arcsec/yr pmN NLTT proper motion
81- 83 I3 deg pmPAN NLTT position angle of proper motion
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Table 2: µ>0.5"/yr LHS stars not listed in the NLTT catalog
-----------------------------------------------------------------
LHS RA (1950) DE rmag pm pmPA
h min s deg ' mag "/yr deg
-----------------------------------------------------------------
2397a 11 19 20 -12 56.6 18.3 0.515 261.0
325a 12 21 24 -27 41.4 17.9 1.293 284.4
534 23 04 36 +71 26.8 11.9 1.320 71.5
3989 23 36 01 -31 28.0 13.0 0.701 170.3
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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- 5 I5 --- NLTT LTT catalog record number ("recno" in VizieR)
7 A1 --- --- [(] (: Erroneous right ascension in the
original table (1)
8- 9 I2 h RAh LTT Right ascension (1950)
11- 12 I2 min RAm NLTT Right ascension (1950)
14- 15 I2 s RAs NLTT Right ascension (1950)
16 A1 --- u_RAs [)] ): Erroneous right ascension in the
original table (1)
18 A1 --- --- [(] (: Erroneous declination in the
original table (1)
19 A1 --- DE- NLTT Declination sign (1950)
20- 21 I2 deg DEd LTT Declination (1950)
23- 26 F4.1 arcmin DEm Declination (1950)
27 A1 --- u_DEm [)] ): Erroneous declination in the
original table (1)
29- 32 F4.1 mag rmag ? NLTT "red" magnitude
34- 38 F5.3 arcsec/yr pm NLTT proper motion
39 A1 --- u_pm [)] ): Erroneous proper motion in the
original table (2)
41- 43 I3 deg pmPA NLTT position angle of proper motion
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Note (1): Stars with coordinates in parenthesis could not be found in
the DSS within 5' of the quoted position and may not exist.
Note (2): Stars with proper motion in parenthesis were recovered in the
DSS but found to have actual proper motion one-tenth of the quoted value.
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 A3 --- --- [LSR]
4- 13 A10 --- LSR Star name, LSRHHMM+DDMM,
LSR JHHMM+DDMM in Simbad
15- 16 I2 h RAh Hour of Right Ascension (J2000) (1)
18- 19 I2 min RAm Minute of Right Ascension (J2000) (1)
21- 25 F5.2 s RAs Second of Right Ascension (J2000) (1)
27 A1 --- DE- Sign of the Declination (J2000) (1)
28- 29 I2 deg DEd Degree of Declination (J2000) (1)
31- 32 I2 arcmin DEm Arcminute of Declination (J2000) (1)
34- 37 F4.1 arcsec DEs Arcsecond of Declination (J2000) (1)
39- 43 F5.3 arcsec/yr pm Proper motion
45- 49 F5.1 deg pmPA Position angle of proper motion
51- 54 F4.1 mag rmag ? The POSS-II system red magnitude
56- 59 F4.1 mag bmag ? The POSS-II system blue magnitude
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Note (1): Extrapolated from the measured position on the POSS-II with the
estimated proper-motion vector (epoch J2000.0).
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Bauer [CDS] 13-Jan-2003