J/AJ/135/2264 Stellar radial velocities in NGC 188 (Geller+, 2008)
WIYN open cluster study.
XXXII. Stellar radial velocities in the old open cluster NGC 188.
Geller A.M., Mathieu R.D., Harris H.C., McClure R.D.
<Astron. J., 135, 2264-2278 (2008)>
=2008AJ....135.2264G 2008AJ....135.2264G
ADC_Keywords: Clusters, open ; Stars, blue ; Radial velocities
Keywords: binaries: spectroscopic - blue stragglers -
open clusters and associations: individual (NGC 188)
Abstract:
We present the results of our ongoing radial-velocity (RV) survey of
the old (7Gyr) open cluster NGC 188. Our WIYN 3.5m data set spans a
time baseline of 11 years, a magnitude range of 12≤V≤16.5
(1.18-0.94M☉), and a 1° diameter region on the sky. With the
addition of a Domain Astrophysical Observatory data set we extend our
bright limit to V=10.8 and, for some stars, extend our time baseline
to 35 years. Our magnitude limits include solar-mass main-sequence
stars, subgiants, giants, and blue stragglers (BSs), and our spatial
coverage extends radially to 17pc (∼13 core radii). For the WIYN data
we present a detailed description of our data reduction process and a
thorough analysis of our measurement precision of 0.4km/s for
narrow-lined stars. We have measured radial velocities for 1046 stars
in the direction of NGC 188, and have calculated RV membership
probabilities for stars with ≥3 measurements, finding 473 to be
likely cluster members.
Description:
The Domain Astrophysical Observatory (DAO) data set contains multiple
RV measurements of 77 stars within the magnitudes of 10.8≤V≤16
covering dates from 1973 December through 1966 November.
We have used the Hydra Multi-Object Spectrograph (MOS) on the WIYN
3.5m telescope to conduct our ongoing WOCS RV survey of NGC 188 from
1996 to the present.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 162 1046 Radial velocity data
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See also:
J/AJ/122/1486 : NGC 2451A proper motions and membership (Platais+, 2001)
J/AJ/124/601 : Absolute positions & proper motions in NGC 188 (Platais+, 2002)
J/AJ/126/2922 : Astrometry and membership in NGC 188 (Platais+, 2003)
J/A+A/461/509 : Membership and spectroscopy of IC 2391 (Platais+, 2007)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- PKM WOCS (Platais et al. 2003, Cat. J/AJ/126/2922)
identification, <Cl* NGC 188 PKM NNNN> in Simbad
6- 12 A7 --- Sand Sandage (1962ApJ...135..333S 1962ApJ...135..333S) identification (1)
14- 17 I4 --- DGV ? Dinescu et al. (1996AJ....111.1205D 1996AJ....111.1205D) number,
<Cl* NGC 188 DGV NNNN> in Simbad
19- 23 I5 --- SMV Stetson et al. 2004 (Cat. J/PASP/116/1012)
identification, <Cl* NGC 188 SMV NNNNN> in Simbad
25- 26 I2 h RAh Hour of Right Ascension (J2000) (2)
28- 29 I2 min RAm Minute of Right Ascension (J2000) (2)
31- 36 F6.3 s RAs Second of Right Ascension (J2000) (2)
37 A1 --- DE- Sign of Declination (J2000)
38- 39 I2 deg DEd Degree of Declination (J2000) (2)
41- 42 I2 arcmin DEm Arcminute of Declination (J2000) (2)
44- 48 F5.2 arcsec DEs Arcsecond of Declination (J2000) (2)
50- 55 F6.3 mag Vmag V band magnitude (2)
57- 61 F5.3 mag B-V (B-V) color index (2)
63- 64 I2 --- NWIYN Number of WIYN observations
66- 67 I2 --- NDAO Number of DAO observations
69- 75 F7.2 km/s Average radial velocity
77- 78 I2 % P(pm) ? Proper-motion membership probability (2)
80- 81 I2 % P(rv) ? Radial-velocity membership probability
83 A1 --- u_P(rv) [-] Non-reliable P(rv) (3)
85- 90 F6.2 --- e/i ? standard deviation to precision ratio (4)
92 A1 --- u_e/i [-] Non-reliable e/i value (3)
94- 96 A3 --- Mm Membership / binarity, see section 7.1 (5)
98-162 A65 --- Comm Additional comment(s) (6)
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Note (1): Sandage identification in Simbad:
* I-NNN to III-NNN : to
* V-NNN : <Cl* NGC 188 MT NNN> (McClure & Twarog 1977ApJ...214..111M 1977ApJ...214..111M)
* J : <Cl* NGC 188 SAN J>
* IV-NNN are not identified.
Note (2): Data from Platais et al. (2003, Cat J/AJ/126/2922).
Note (3): the minus sign (-) indicates that more observations
are required to derive a reliable measurement.
Note (4): i.e. the radial velocity standard deviation (e) divided by our
quoted precision (i). See sections 5.2 and 7.2.
Note (5): Source classification code as follows:
BLM = binary likely member
BLN = binary likely non-member
BM = binary member
BN = binary non-member
BU = binary with unknown membership
SM = single member
SN = single non-member
U = unknown class
Note (6): The comments include:
* Notes about the classifications: we use G for giant stars,
BS for blue stragglers, SB1 and SB2 for single- and double-lined
spectroscopic binaries, respectively, and RR for rapid rotators.
* We define the rapid rotators as those stars whose CCF FWHM is >60km/s
and are not observed to be an SB2 binary.
(Our mean FWHM for non-RR stars is 35km/s.)
* We have also included the relevant IDs from the photometric and
X-ray studies of the cluster, with the prefixes:
V = Zhang et al. (2002AJ....123.1548Z 2002AJ....123.1548Z),
WV = Kafka & Honeycutt (2003AJ....126..276K 2003AJ....126..276K),
X = Belloni et al. (1998A&A...339..431B 1998A&A...339..431B), and
GX = Gondoin (2005, Cat. J/A+A/438/291)
as well as certain short-period variable classifications from Zhang et
al. (2002AJ....123.1548Z 2002AJ....123.1548Z).
* We caution the reader that the variability of cases where, for
example, e/i<5 and only a few observations are available should
be considered uncertain.
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History:
From electronic version of the journal
References:
von Hippel & Sarajedini, Pap I 1998AJ....116.1789V 1998AJ....116.1789V
Sarajedini et al., Pap II 1999AJ....118.2894S 1999AJ....118.2894S
Sarajedini, Pap III 1999AJ....118.2321S 1999AJ....118.2321S
Sarajedini et al., Pap IV 1999AJ....118.2894S 1999AJ....118.2894S
Barrado et al., Pap V 2001ApJ...549..452B 2001ApJ...549..452B
Sills & Deliyannis, Pap VI 2000ApJ...544..944S 2000ApJ...544..944S
Platais et al., Pap VII 2001AJ....122.1486P 2001AJ....122.1486P, Cat. J/AJ/122/1486
Platais et al., Pap VIII 2002AJ....124..601P 2002AJ....124..601P, Cat. J/AJ/124/601
Stassun et al., Pap IX 2002A&A...382..899S 2002A&A...382..899S, Cat. J/A+A/382/899
Grocholski & Sarajedini, Pap X 2002AJ....123.1603G 2002AJ....123.1603G
von Hippel et al., Pap XI 2002AJ....124.1555V 2002AJ....124.1555V
Deliyannis et al., Pap XII 2002ApJ...577L..39D 2002ApJ...577L..39D
Barnes Pap XIII 2003ApJ...586..464B 2003ApJ...586..464B
Barnes Pap XIV 2003ApJ...586L.145B 2003ApJ...586L.145B
Kafka et al., Pap XV 2003AJ....126..276K 2003AJ....126..276K
Grocholski & Sarajedini, Pap XVI 2003MNRAS.345.1015G 2003MNRAS.345.1015G
Platais et al., Pap XVII 2003AJ....126.2922P 2003AJ....126.2922P, Cat. J/AJ/126/2922
Mathieu et al., Pap XVIII 2004ApJ...602L.121M 2004ApJ...602L.121M
Sarajedini et al., Pap XIX 2004AJ....127..991S 2004AJ....127..991S
Kafka et al., Pap XX 2004AJ....127.1622K 2004AJ....127.1622K
Steinhauer & Deliyannis, Pap XXI 2004ApJ...614L..65S 2004ApJ...614L..65S
Meibom & Mathieu, Pap XXII 2005ApJ...620..970M 2005ApJ...620..970M
von Hippel et al., Pap XXIII 2006ApJ...645.1436V 2006ApJ...645.1436V
Hole et al., Pap XXIV 2009AJ....138..159H 2009AJ....138..159H, Cat. J/AJ/138/159
James et al., Pap XXV
Platais et al., Pap XXVI 2007A&A...461..509P 2007A&A...461..509P, Cat. J/A+A/461/509
Kafka et al., Pap XXVII
Giampapa et al., Pap XXVIII 2006ApJ...651..444G 2006ApJ...651..444G
Meibom et al., Pap XXIX 2006ApJ...653..621M 2006ApJ...653..621M
Jeffery et al., Pap XXX 2007ApJ...658..391J 2007ApJ...658..391J
Meibom et al., Pap XXXI 2007ApJ...665L.155M 2007ApJ...665L.155M
Yadav et al., Pap XXXIII 2008A&A...484..609Y 2008A&A...484..609Y, Cat. J/A+A/484/609
Meibom et al., Pap XXXIV 2009ApJ...695..679M 2009ApJ...695..679M, Cat. J/ApJ/695/679
Platais et al., Pap XXXV 2008MNRAS.391.1482P 2008MNRAS.391.1482P, Cat. J/MNRAS/391/1482
Geller et al., Pap XXXVI 2009AJ....137.3743G 2009AJ....137.3743G, Cat. J/AJ/137/3743
Meibom et al., Pap XXXVII 2009AJ....137.5086M 2009AJ....137.5086M, Cat. J/AJ/137/5086
Geller et al., Pap XXXVIII 2010AJ....139.1383G 2010AJ....139.1383G, Cat. J/AJ/139/1383
Anthony-Twarog et al., Pap XXXIX 2010AJ....139.2034A 2010AJ....139.2034A, Cat. J/AJ/139/2034
Sarajedini et al., Pap XL 2009ApJ...698.1872S 2009ApJ...698.1872S
Chumak et al., Pap XLI 2010MNRAS.402.1841C 2010MNRAS.402.1841C
Casetti-Dinescu et al., Pap XLII 2010AJ....139.1889C 2010AJ....139.1889C
James et al., Pap XLIII 2010A&A...515A.100J 2010A&A...515A.100J, Cat. J/A+A/515/A100
Platais et al., Pap XLIV 2011MNRAS.413.1024P 2011MNRAS.413.1024P, Cat. J/MNRAS/413/1024
Meibom et al., Pap XLV 2011ApJ...733..115M 2011ApJ...733..115M, Cat. J/ApJ/733/115
Platais et al., Pap XLVI 2011ApJ...733L...1P 2011ApJ...733L...1P
Gosnell et al., Pap XLVII 2012ApJ...745...57G 2012ApJ...745...57G
Geller & Mathieu, Pap XLVIII 2012AJ....144...54G 2012AJ....144...54G
Platais et al., Pap XLIX 2012ApJ...751L...8P 2012ApJ...751L...8P
Cummings et al., Pap L 2012AJ....144..137C 2012AJ....144..137C
Geller et al., Pap LI 2013AJ....145....8G 2013AJ....145....8G
Yang et al., Pap LII 2013ApJ...762....3Y 2013ApJ...762....3Y
Sandquist et al., Pap LIII 2013ApJ...762...58S 2013ApJ...762...58S
Anthony-Twarog, Pap LIV 2013ApJ...767L..19A 2013ApJ...767L..19A
Platais et al., Pap LV 2013AJ....146...43P 2013AJ....146...43P, Cat. J/AJ/146/43
Pap LVI
Maderak et al., Pap LVII 2013AJ....146..143M 2013AJ....146..143M
Pap LVIII
Tofflemire et al., Pap LIX 2014AJ....148...61T 2014AJ....148...61T, Cat. J/AJ/148/61
Milliman et al., Pap LX 2014AJ....148...38M 2014AJ....148...38M, Cat. J/AJ/148/38
Anthony-Twarog et al., Pap LXI 2014AJ....148...51A 2014AJ....148...51A, Cat. J/AJ/148/51
Thompson et al., Pap LXII 2014AJ....148...85T 2014AJ....148...85T, Cat. J/AJ/148/85
Maderak et al., Pap LXIII 2015AJ....149..141M 2015AJ....149..141M
Pap LXIV
Lee-Brown et al., Pap LXV 2015AJ....149..121L 2015AJ....149..121L, Cat. J/AJ/149/121
Leiner et al., Pap LXVI 2015AJ....150...10L 2015AJ....150...10L, Cat. J/AJ/150/10
Geller et al. Pap LXVII 2015AJ....150...97G 2015AJ....150...97G, cat. J/AJ/150/97
Pap LXVIII
Pap LXIX
Pap LXX
Milliman et al., Pap LXXI 2016AJ....151..152M 2016AJ....151..152M, cat. J/AJ/151/152
Anthony-Twarog et al., Pap LXXII 2016AJ....152..192A 2016AJ....152..192A, cat. J/AJ/152/192
Pap LXXIII
Pap LXXIV
Cummings et al., Pap LXXV 2017AJ....153..128C 2017AJ....153..128C
Anthony-Twarog et al., Pap LXXVI 2018AJ....155..138A 2018AJ....155..138A
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 12-Jan-2011