J/A+A/596/A116 Radial velocities of K-M dwarfs (Sperauskas+, 2016)
Radial velocities of K-M dwarfs and local stellar kinematics.
Sperauskas J., Bartasiute S., Boyle R.P., Deveikis V., Raudeliunas S.,
Upgren A.R.
<Astron. Astrophys. 596, A116 (2016)>
=2016A&A...596A.116S 2016A&A...596A.116S (SIMBAD/NED BibCode)
ADC_Keywords: Stars, dwarfs ; Stars, K-type ; Stars, M-type ;
Radial velocities ; Space velocities
Keywords: techniques: radial velocities - stars: late-type -
stars: kinematics and dynamics - binaries: spectroscopic -
solar neighborhood
Abstract:
The aim of this paper is to present complete radial-velocity data for
the spectroscopically selected McCormick (MCC) sample of nearby K-M
dwarfs and, based on these data, to determine the space-velocity
distributions of late-type stars in the solar neighborhood.
Description:
We analyzed nearly 3300 measurements of radial velocities for 1049 K-M
dwarfs, that we obtained during the past decade with a CORAVEL-type
instrument, with a primary emphasis on detecting and eliminating from
kinematic calculations the spectroscopic binaries and binary
candidates. We present the catalog of our observations of radial
velocities for 959 stars which are not suspected of velocity
variability. Of these, 776 stars are from the MCC sample and 173 stars
are K-M dwarfs from the CNS4. The catalog consists of two parts: Table
2 lists the mean radial velocities, and Table 2a contains individual
measurements. Our radial velocities agree with the best published
standard stars to within 0.7km/s in precision. Combining these and
supplementary radial-velocity data with Hipparcos/Tycho-2 astrometry
(Table 4 summarizes input observational data) we calculated the space
velocity components and parameters of the galactic orbits in a
three-component model potential by Johnston K.V. et al.
(1995ApJ...451..598J 1995ApJ...451..598J) for a total of 1088 K-M dwarfs (Table 5), that
we use for kinematical analysis and for the identification of possible
candidate members of nearby stellar kinematic groups. We identified
146 stars as possible candidate members of the classical moving groups
and known or suspected subgroups (Table 7). We show that the
distributions of space-velocity components, orbital eccentricities,
and maximum distances from the Galactic plane for nearby K-M dwarfs are
consistent with the presence of young, intermediate-age and old
populations of the thin disk and a small fraction (3%) of stars with
the thick disk kinematics.
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2.dat 108 959 Mean radial velocities of K-M dwarfs
table2a.dat 60 2487 Individual radial-velocity measurements
table4.dat 132 1160 Observational data for the sample stars
table5.dat 103 1088 Heliocentric space velocities and parameters
of Galactic orbits
table7.dat 98 146 Candidate stars for the kinematic groups
notes.dat 76 37 Remarks for table2
refs.dat 138 47 References for table4
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See also:
B/sb9 : SB9 9th Catalog of Spectroscopic Binary Orbits
(Pourbaix+ 2004-14)
I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)
I/311 : Hipparcos, the New Reduction (van Leeuwen, 2007)
III/13 : Vyssotsky's Catalogues 1950.0 (Vyssotsky+ 1943-58)
III/252 : 35493 HIP stars Pulkovo radial velocities (Gontcharov, 2006)
III/21 : General Catalogue of Stellar Radial Velocities (Wilson, 1953)
J/AJ/123/3356 : Palomar/MSU nearby star spectroscopic survey III (Gizis+ 2002)
J/ApJS/141/503 : Radial Velocities for 889 late-type stars (Nidever+, 2002)
J/A+A/514/A97 : Late-type stars high-resolution spectra (Lopez-Santiago+ 2010
J/A+A/521/A12 : Radial velocities of nearby late-type stars (Maldonado+, 2010)
J/AJ/147/20 : Spectroscopy of 447 nearby M dwarfs (Newton+, 2014)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- Seq [1/960] Running number
4 A1 --- Remark [*] An asterisk indicates a remark in
notes.dat file
6- 12 A7 --- MCC McCormick name (when available)
13- 14 A2 --- Comp [ABCD ] Component designation (A, B, AB, C, D)
16- 38 A23 --- SName Simbad object name
40- 41 I2 h RAh Right Ascension (J2000)
43- 44 I2 min RAm Right Ascension (J2000)
46- 50 F5.2 s RAs Right Ascension (J2000)
52 A1 --- DE- Declination sign (J2000)
53- 54 I2 deg DEd Declination (J2000)
56- 57 I2 arcmin DEm Declination (J2000)
59- 62 F4.1 arcsec DEs Declination (J2000)
64- 69 F6.1 km/s HRV Mean heliocentric radial velocity
71- 73 F3.1 km/s e_HRV Uncertainty on the radial velocity (1)
75- 76 I2 --- NumOfMea Number of measurements
78- 84 I7 d DayOfMea Mean of the Julian Dates of observations
(in HJD)
86- 89 I4 d TimeSpan Time span (in days) between the first
and last observation
90-108 A19 --- Parent ? Simbad parent name (for binary stars)
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Note (1): Uncertainties were calculated following the formula for ε
by Jasniewicz G. and Mayor M. (1988A&A...203..329J 1988A&A...203..329J).
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Byte-by-byte Description of file: table2a.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- Seq Object No. as in table2.dat
5- 7 A3 --- --- [MCC]
9- 11 I3 --- MCC ? McCormick number (when available)
12- 13 A2 --- Comp [ABCD ] Component designation (A, B, AB, C, D)
15- 37 A23 --- SName Simbad object name
39- 49 F11.3 d HJD Heliocentric Julian Date
51- 56 F6.1 km/s HRV Individual heliocentric radial velocity
58- 60 F3.1 km/s e_HRV Uncertainty on radial velocity
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 A9 --- Name Object name
10- 11 A2 --- Comp [ABCD ab] Component designation (A, B, C, AB)
13- 14 I2 h RAh Right Ascension (J2000)
16- 17 I2 min RAm Right Ascension (J2000)
19- 23 F5.2 s RAs Right Ascension (J2000)
25 A1 --- DE- Declination sign (J2000)
26- 27 I2 deg DEd Declination (J2000)
29- 30 I2 arcmin DEm Declination (J2000)
32- 35 F4.1 arcsec DEs Declination (J2000)
37- 42 F6.2 mas plx ? Trigonometric parallax (1)
44- 48 F5.2 mas e_plx ? Standard error of parallax
50- 51 A2 --- r_plx Parallax reference, in refs.dat file
53- 59 F7.1 mas/yr pmRA ? Proper motion in Right Ascension (3)
61- 64 F4.1 mas/yr e_pmRA ? Standard error in pmRA
66- 72 F7.1 mas/yr pmDE ? Proper motion in Declination (3)
74- 77 F4.1 mas/yr e_pmDE ? Standard error in pmDE
79- 80 A2 --- r_pm Proper motion reference, in refs.dat file
82- 88 F7.2 km/s HRV ? Heliocentric radial velocity
90- 93 F4.2 km/s e_HRV ? Standard error of radial velocity
95- 99 A5 --- SBvar ? Radial velocity variability (5)
101-103 A3 --- r_HRV Reference of radial velocity source,
in refs.dat file (6)
105-107 A3 --- mflag Multiplicity flag (7)
109-111 A3 --- varflag Variability flag (8)
113-117 F5.2 mag Vmag ? V magnitude
119-122 F4.2 mag B-V ? B-V color index
124-127 F4.2 mag V-R ? V-R color index
129-132 F4.2 mag V-I ? V-I color index
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Note (1): Trigonometric parallax (mas of arc) from van Leeuwen (2008,
(Cat. I/3111) unless in column r_plx stated otherwise.
Note (3): Proper motions (in mas) from Tycho-2 (Hog et al., ),
(2000A&A...355L..27H 2000A&A...355L..27H, Cat. I/259) unless in column r_pm stated otherwise
Note (5): Possible values: SBO,SBO*,var,var? SB, SB2O, SB1, SB2, SB2?
Note (6): When two references are given in column r_HRV, the first reference
refers to the source from which the radial velocity was taken and the second
refers to the source of information on radial-velocity variability.
Note (7): Hipparcos multiplicity flags (upper case) and other flags from
literature (lower case):
C = solutions for multiple components
G = acceleration or higher order terms required in solution
(possibly the effect of an unseen component)
O = partial binary orbital solution
V = photocentric movement due to the variability of one or more components
X = stochastic solution (neither a satisfactory single nor double-star
solution; probable short-period astrometric binary)
r = resolved spectroscopic or astrometric binary Beuzit J.-L. et al.
(2004A&A...425..997B 2004A&A...425..997B)
d = double system
t = triple system
Note (8): Hipparcos variability flags upper case) and other flags from
literature (lower case):
C = no variability detected
D = spurious photometric variability, presumably caused by a companion
M = possibly micro-variable (amplitude < 0.03 mag)
P = periodic variable
R = possible spurious magnitude trend, due to a revised V-I color index
U = unsolved variable which does not fall in the other categories (possibly
multiperiodic or irregular variable)
v = variable or suspected variability
f = flare star
e = emission line star
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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- 9 A9 --- Name Object name
10- 11 A2 --- Comp [ABCD ab] Component designation (A, B, AB, C, D)
13- 18 F6.1 km/s Uvel ? Heliocentric space velocity component U
positive toward the Galactic center)
20- 23 F4.1 km/s e_Uvel ? Standard error of space velocity component U
25- 30 F6.1 km/s Vvel ? Heliocentric space velocity component V
(positive in the direction of Galactic rotation)
32- 35 F4.1 km/s e_Vvel ? Standard error of space velocity component V
37- 42 F6.1 km/s Wvel ? Heliocentric space velocity component W
(positive toward the north Galactic pole)
44- 47 F4.1 km/s e_Wvel ? Standard error of space velocity component W
49- 54 F6.3 kpc Rapo ? Apogalactic distance
56- 60 F5.3 kpc e_Rapo ? Standard error of apogalactic distance
62- 67 F6.3 kpc Rperi ? Perigalactic distance
69- 73 F5.3 kpc e_Rperi ? Standard error of perigalactic distance
75- 79 F5.3 kpc Zmax ? Maximum orbital distance from the galactic plane
81- 85 F5.3 kpc e_Zmax ? Standard error of orbital distance Zmax
87- 91 F5.3 --- e ? Orbital eccentricity
93- 97 F5.3 --- e_e ? Standard error on orbital eccentricity
99-102 A4 --- SKG ? Stellar kinematic group (1)
103 A1 --- u_SKG [:] Uncertainty flag for SKG
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Note (1): Acronyms for stellar kinematic groups as follows:
BPC = β Pictoris moving group
IC = IC 2391 Supercluster
ABD = Doradus moving group
LA = Local Association groups and subgroups
CST = Castor moving group
UMA = UMa moving group (Sirius Supercluster)
HYD = Hyades Supercluster
W630 = Wolf 630 moving group
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Byte-by-byte Description of file: table7.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 A3 --- --- [MCC]
5- 7 I3 --- MCC ? McCormick number (when available)
8- 9 A2 --- Comp [ABCD ] Component designation (A, B, AB, C, D)
11- 13 A3 --- --- [HIP]
14- 19 I6 --- HIP ? Hipparcos number (when available)
21- 28 A8 --- SKGsub Stellar kinematic subgroup (SKG) (1)
30- 31 I2 pc dist Distance from the Sun
33- 37 F5.1 km/s Uvel Heliocentric space velocity component U
(positive towards the galactic center)
39- 41 F3.1 km/s e_Uvel Standard error of space velocity component U
43- 47 F5.1 km/s Vvel Heliocentric space velocity component V
(positive in the direction of Galactic rotation)
49- 51 F3.1 km/s e_Vvel Standard error of space velocity component V
53- 57 F5.1 km/s Wvel Heliocentric space velocity component W
(positive towards the north Galactic pole)
59- 61 F3.1 km/s e_Wvel Standard error of space velocity component W
63- 67 F5.3 --- e Orbital eccentricity
69- 73 F5.3 --- e_e Standard error on orbital eccentricity
75- 77 I3 pc Zmax Maximum orbital distance Zmax from the
Galactic plane
79- 80 I2 pc e_Zmax Standard error of orbital distance Zmax
82- 84 F3.1 km/s dvel Difference δv in spatial velocity
from the velocity of the center of SKG
86- 89 I4 pc ddist Distance δD0 from the center of
SKG at the time of SKG's birth
91- 98 A8 --- Notes SKG membership from the literature (2)
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Note (1): Stellar kinematic groups and subgroups as follows:
BPC = β Pictoris Moving Group
LA_1-7 = Subgroup 1-7 (Pleiades Supercluster or Local Association)
IC = IC 2391 Supercluster
LA_B2 = Subgroup B2 (Pleiades Supercluster or Local Association)
ABD = AB Doradus Moving Group
LA_B4 = Subgroup B4 (Pleiades Supercluster or Local Association)
LA_1-6 = Subgroup 1-6 (Pleiades Supercluster or Local Association)
LA_1 = Suspected subgroup 1 (Local Association?)
LA_2 = Suspected subgroup 2 (Local Association?)
LA_3 = Suspected subgroup 3 (Local Association?)
CST_C4 = Subgroup C4 (Castor Moving Group?)
CST = Castor Moving Group
CST_C1 = Subgroup C1 (Castor Moving Group?)
UMA = Ursa Major Moving Group or Sirius Supercluster
UMA_A4 = Subgroup A4 (Sirius Supercluster)
UMA_2-37 = Subgroup 2-37 (Sirius Supercluster)
UMA_4 = Suspected subgroup 4 (Sirius Supercluster?)
HYD_2-25 = Subgroup 2-25 (Hyades Supercluster)
HYD_2-18 = Subgroup 2-18 (Hyades Supercluster)
HYD_2-10 = Subgroup 2-10 (Hyades Supercluster)
HYD_D3 = Subgroup D3 (Hyades Supercluster)
HYD = Hyades Supercluster
W630 = Wolf 630 Moving Group
Note (2): Notes on SKG membership from the literature.
M - member, NM - nonmember.
References as follows:
(1) = Torres C. A. O. et al. (2006A&A...460..695T 2006A&A...460..695T),
Torres C. A. O. et al. (2008hsf2.book..757T 2008hsf2.book..757T)
(2) = Zuckerman B. and Song I. (2004ARA&A..42..685Z 2004ARA&A..42..685Z)
(3) = Maldonado J. et al. (2010A&A...521A..12M 2010A&A...521A..12M)
(4) = Montes D. et al. (2001MNRAS.328...45M 2001MNRAS.328...45M)
(5) = Nakajima T. et al. (2010AJ....140..713N 2010AJ....140..713N),
Nakajima T. and Morino J.-I. (2012AJ....143....2N 2012AJ....143....2N)
(6) = Barrado y Navascues D. (1998A&A...339..831B 1998A&A...339..831B)
(7) = Lopez-Santiago J. et al. (2010A&A...514A..97L 2010A&A...514A..97L)
(8) = King J. R. et al. (2003AJ....125.1980K 2003AJ....125.1980K)
(9) = Tabernero H. M. et al. (2012A&A...547A..13T 2012A&A...547A..13T)
(10) = Klutsch A. et al. (2014A&A...567A..52K 2014A&A...567A..52K)
(11) = Eggen O.J. (1965Obs....85..191E 1965Obs....85..191E)
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq Running number
5- 76 A72 --- Note Text fo the note
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- Ref Reference code
4- 22 A19 --- BibCode BibCode
24- 54 A31 --- Aut Author's name
56-138 A83 --- Com Comments
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Acknowledgements:
Julius Sperauskas, julius.sperauskas(at)ff.vu.lt
History:
* 04-Sep-2016: first version prepared by S. Raudeliunas [Vilnius Univ. Obs.]
* 13-May-2020: table2 and table2a entry MCC 696 was changed to HIP 66337 by
S. Raudeliunas [Vilnius Univ. Obs.].
Entries for table4 and table5 modified for MCC 696.
(End) S. Raudeliunas [Vilnius Univ. Obs.], P. Vannier [CDS] 04-Sep-2016