J/A+A/461/509 Membership and spectroscopy of IC 2391 (Platais+, 2007)
WIYN Open Cluster Study.
XXVI. Improved kinematic membership and spectroscopy of IC 2391.
Platais I., Melo C., Mermilliod J.-C., Kozhurina-Platais V., Fulbright J.P.,
Mendez R.A., Altmann M., Sperauskas J.
<Astron. Astrophys. 461, 509 (2007)>
=2007A&A...461..509P 2007A&A...461..509P
ADC_Keywords: Clusters, open ; Abundances ; Photometry, CCD ; Proper motions ;
Radial velocities
Keywords: open clusters and associations: individual: IC 2391 -
astrometry - stars: kinematics - stars: abundances
Abstract:
Young open clusters provide important clues to the interface between
the main sequence and pre-main-sequence phases of stellar evolution.
The young and nearby open cluster IC 2391 is well-suited to studies of
these two evolutionary phases.
We establish a bona fide set of cluster members and then analyze this
set in terms of binary frequency, projected rotational velocities,
[Fe/H], and lithium abundance. In the wake of the Hipparcos distance
controversy for the Pleiades, we compare the main-sequence fitting
distance modulus to the Hipparcos mean parallax for IC 2391.
Description:
A variety of new observational data are presented for probable members
of the open cluster IC 2391. These include positions and proper
motions, BV CCD photometry, iron abundances from FEROS spectra, and
radial velocities obtained with Coravel and FEROS.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
ic2391.dat 55 6991 Catalog of positions, relative proper motions
and photographic V-photometry in the region of
open cluster IC 2391
table1.dat 94 115 Astrometry & photometry for IC 2391
table3.dat 35 159 Coravel radial velocities
table5.dat 52 82 High-resolution FEROS spectroscopic observations
table6.dat 40 99 Iron line list and equivalent widths of objects
665, 1560, 3359 and 4362
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See also:
J/A+AS/126/357 : Members of IC 2391 (Rolleston+ 1997)
J/A+A/372/862 : Lithium abundances in IC 2602 and IC 2391 (Randich+, 2001)
J/ApJS/134/103 : Low-mass members of IC 2391 (Barrado y Navascues+, 2001)
J/MNRAS/355/959 : Proper motions of IC 2391 possible members (Dodd+, 2004)
J/A+A/430/287 : XMM observations of IC 2391 stars (Marino+, 2005)
Byte-by-byte Description of file: ic2391.dat
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Bytes Format Units Label Explanations
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2- 5 I4 --- Seq Object identifier
7- 8 I2 --- Nplates [1,12] Number of "plate pairs" (1)
10- 19 F10.6 deg RAdeg Right ascension for epoch J2000.0 and in the
ICRS reference system (i.e., equinox J2000.0)
21- 30 F10.6 deg DEdeg Declination for the epoch J2000.0 and
equinox J2000.0
32- 37 F6.1 mas/yr pmRA Relative proper motion in right ascension
multiplied by cos(Dec)
39- 44 F6.1 mas/yr pmDE Relative proper motion in declination
46- 47 I2 % Prob Membership probability
49- 53 F5.2 mag Vmag Photographic V-magnitude
55 I1 --- Flag [0/1] flag indicating a possible image
confusion if set equal to 1
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Note (1): Because of multiple grating images and an offset exposures
this number can be as high as 12.
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq Object identifier
6- 11 I6 --- HD ? HD number
13- 15 A3 --- VXR Star number from Patten & Simon
(1996ApJS..106..489P 1996ApJS..106..489P), VXR PSPC NNa in Simbad
17- 18 I2 h RAh Right ascension (J2000), epoch=J2000.0
20- 21 I2 min RAm Right ascension (J2000)
23- 27 F5.2 s RAs Right ascension (J2000)
29 A1 --- DE- Declination sign (J2000)
30- 31 I2 deg DEd Declination (J2000), epoch=J2000.0
33- 34 I2 arcmin DEm Declination (J2000)
36- 39 F4.1 arcsec DEs Declination (J2000)
41- 45 F5.1 mas/yr pmRA Proper motion in right ascension
47- 51 F5.1 mas/yr pmDE Proper motion in declination
53- 55 I3 % Prob Membership probability
59- 64 F6.3 mag Vmag V magnitude from CCD photometry
66- 71 F6.3 mag B-V B-V index from CCD photometry (1)
75- 80 F6.3 mag Jmag J magnitude from 2MASS catalog (1)
82- 87 F6.3 mag J-Ks J-Ks index from 2MASS catalog
89 A1 --- Memb [*] *: bona fide cluster member
91- 94 A4 --- Rem Remarks on binarity (2)
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Note (1): Photometry with two decimal digits is from the literature
Note (2): Remarks as follows:
SB = single-lined spectroscopic binary
SB1 = single-lined spectroscopic binary
SB2 = double-lined spectroscopic binary
SB1o = single-lined spectroscopic binary with orbital solution
SB2o = double-lined spectroscopic binary with orbital solution
SB: = suspected spectroscopic binary
Bin? = suspected binarity from Hipparcos astrometry
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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- 4 I4 --- Seq Object identifier
7 A1 --- m_Seq [AB] Component
9- 19 F11.3 d JD Julian date
23- 28 F6.2 km/s HRV Heliocentric radial velocity
31- 34 F4.2 km/s e_HRV Estimated standard error of radial velocity
35 A1 --- n_HRV [*] *: measurements obtained at the CASLEO2.2m
telescope with the Lithuanian Coravel
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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- 4 I4 --- Seq Object identifier
7- 9 I3 --- S/N Signal-to-noise ratio
11- 16 F6.3 mag B-V B-V index from CCD photometry (also in table1)
19- 30 F12.4 d JD Julian date
32- 37 F6.2 km/s HRV Heliocentric radial velocity
39 A1 --- l_vsini Limit flag on vsini
40- 44 F5.1 km/s vsini Projected rotation velocity
46- 48 A3 --- Bin [SB2 ] Binary type
50 A1 --- --- [(]
51 A1 --- m_Seq [AB] Component of spectroscopic binary
52 A1 --- --- [)]
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 7 F7.2 0.1nm lambda Wavelength
10- 14 A5 --- Ion Iron ion
17- 20 F4.2 eV EP Excitation potential
23- 24 I2 0.1pm Sun Equivalent width of the Sun (1)
26- 28 I3 0.1pm EW665 ? Equivalent width of star No. 665
30- 32 I3 0.1pm EW1560 ? Equivalent width of star No. 1560
34- 36 I3 0.1pm EW3359 ? Equivalent width of star No. 3359
38- 40 I3 0.1pm EW4362 ? Equivalent width of star No. 4362
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Note (1): Solar equivalent widths taken from Fulbright et al.
(2006ApJ...636..821F 2006ApJ...636..821F).
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Acknowledgements:
Imants Platais, imants(at)skysrv.pha.jhu.edu
References:
von Hippel & Sarajedini, Pap I 1998AJ....116.1789V 1998AJ....116.1789V
Sarajedidni et al., Pap II 1999AJ....118.2894S 1999AJ....118.2894S
Sarajedidni, Pap III 1999AJ....118.2321S 1999AJ....118.2321S
Sarajedini et al., Pap IV 1999AJ....118.2894S 1999AJ....118.2894S
Barrado, 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 & Honeycutt, 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
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
Geller et al., Pap XXXII 2008AJ....135.2264G 2008AJ....135.2264G, Cat. J/AJ/135/2264
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) Imants Platais [Johns Hopkins Univ.] Patricia Vannier [CDS] 09-Oct-2006