J/AJ/129/413 New high proper motion stars (-90<DE< -47) (Subasavage+, 2005)
The solar neighborhood.
XII. Discovery of new high proper motion stars with µ≥0.4/yr between
declinations -90° and -47°.
Subasavage J.P., Henry T.J., Hambly N.C., Brown M.A., Jao W.-C.
<Astron. J., 129, 413-432 (2005)>
=2005AJ....129..413S 2005AJ....129..413S
ADC_Keywords: Stars, nearby ; Proper motions ; Photometry, infrared
Keywords: solar neighborhood - stars: distances - stars: statistics
Abstract:
We report the discovery of 141 new high proper motion systems
(µ≥0.4"/yr) in the southern sky (DE=-90 to -47°) brighter than
UKST plate R59F=16.5 via our SuperCOSMOS-RECONS search. When
combined with the nine systems having µ≥1.0"/yr and/or late
spectral type from the initial phases of this effort, we find that 73
of the 150 total systems are moving faster than 0.5"/yr and are
therefore new members of the classic Luyten Half-Second sample. These
constitute a 21% increase in the sample of stars with µ≥0.5"/yr in
the declination region searched, thereby comprising an important
addition to this long-neglected region of the sky. Distance estimates
are provided for the entire sample, based on a combination of
photographic plate magnitudes and Two Micron All Sky Survey
photometry, using the relations recently presented by Hambly et al.
for the presumed main-sequence stars. Three systems are anticipated to
be within 10pc, and an additional 15 are within 25pc. Nine of these 18
nearby systems have proper motions falling between 0.4"/yr and
0.6"/yr, hinting at a large population of nearby stars with fast, but
not extremely high, proper motions that have not been thoroughly
investigated.
Description:
Coordinates, proper motions, and plate magnitudes have been extracted
from SuperCOSMOS (Hambly et al., 2001MNRAS.326.1279H 2001MNRAS.326.1279H) and are listed
in table2.dat.
Infrared photometry is used to extend the color baseline, which allows
more accurate photometric distance estimates for red dwarfs and
permits a fairly reliable separation of the white and red dwarfs. The
infrared JHKs photometry has been extracted from the Two Micron All
Sky Survey (2MASS, II/246) via Aladin.
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2.dat 145 151 Proper Motions, Photographic and Infrared
Photometry, and Distance Estimates for the
SuperCOSMOS-RECONS Sample with µ≥0.4"/yr
and south of DE=-47°
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See also:
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
I/277 : SPM Catalog 2.0 (Platais+ 1998)
http://www-wfau.roe.ac.uk/sss : SuperCOSMOS Home Page
J/A+A/435/363 : Southern Infrared Proper Motion Survey (Deacon+, 2005)
J/AJ/130/1658 : New high proper motion stars (-47<DE←00) (Subasavage+, 2005)
J/AJ/133/2898 : New proper-motion stars (-90<DE←47) (Finch+, 2007)
J/AJ/141/21 : CCD distance estimates of SCR targets (Winters+, 2011)
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1 A1 --- n_pm [AB] Proper motion interval (1)
3- 5 A3 --- --- [SCR]
7- 16 A10 --- SCR SCR designation (JHHMM-DDMM)
17- 18 A2 --- n_SCR [AB ] Multiplicity index on SCR
20- 21 I2 h RAh Right ascension (J2000.0)
23- 24 I2 min RAm Right ascension (J2000.0)
26- 30 F5.2 s RAs Right ascension (J2000.0)
32 A1 --- DE- Declination sign (J2000.0)
33- 34 I2 deg DEd Declination (J2000.0)
36- 37 I2 arcmin DEm Declination (J2000.0)
39- 42 F4.1 arcsec DEs Declination (J2000.0)
44- 48 F5.3 arcsec/yr pm Total proper motion
50- 54 F5.3 arcsec/yr e_pm rms uncertainty on pm
56- 60 F5.1 deg pmPA Position angle of proper motion
62- 66 F5.2 mag Bjmag ? SuperCOSMOS photographic Bj magnitude
68- 72 F5.2 mag R1mag ? SuperCOSMOS photographic R59F magnitude
74- 78 F5.2 mag Imag ? SuperCOSMOS photographic IIVN magnitude
80- 84 F5.2 mag Jmag ? 2MASS J magnitude
86- 90 F5.2 mag Hmag ? 2MASS H magnitude
92- 96 F5.2 mag Ksmag ? 2MASS Ks magnitude
98-102 F5.2 mag R1-J ? R59F-J colour index
104-108 F5.1 pc Dist ? Estimated distance (photometric)
110-149 A40 --- Notes Notes
--------------------------------------------------------------------------------
Note (1): Proper motion intervals:
A: SuperCOSMOS-RECONS Sample with µ≥0.5"/yr
B: SuperCOSMOS-RECONS Sample with µ between 0.4"/yr and 0.5"/yr
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History:
From electronic version of the journal
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(End) Patricia Vannier [CDS] 28-Apr-2005