J/AJ/139/1383 Radial velocities in M35 (NGC 2168) (Geller+, 2010)
WIYN open cluster study.
XXXVIII. Stellar radial velocities in the young open cluster M35 (NGC 2168).
Geller A.M., Mathieu R.D., Braden E.K., Meibom S., Platais I., Dolan C.J.
<Astron. J., 139, 1383-1393 (2010)>
=2010AJ....139.1383G 2010AJ....139.1383G
ADC_Keywords: Clusters, open ; Binaries, spectroscopic ; Radial velocities ;
Rotational velocities
Keywords: binaries: spectroscopic -
open clusters and associations: individual (NGC 2168)
Abstract:
We present 5201 radial-velocity (RV) measurements of 1144 stars as
part of an ongoing study of the young (150Myr) open cluster M35
(NGC 2168). We have observed M35 since 1997, using the Hydra
Multi-Object Spectrograph on the WIYN 3.5m telescope.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 118 1151 Radial-velocity data of stars in M35
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See also:
J/MNRAS/306/361 : UBVI CCD photometry of M35 (NGC 2168) (Sung+ 1999)
J/ApJ/546/1006 : VRI photometry of M35 (Barrado y Navascues+, 2001)
J/AJ/133/394 : Low-mass binary companions in M35 (McNamara+, 2007)
J/ApJ/695/679 : Stellar rotation in M35 (Meibom+, 2009)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- WOCS WOCS identification number,
<[GMB2010] WOCS NNNFFF> in Simbad (1)
8- 10 I3 --- IDM ? Meibom et al. (2009, priv. comm.)
identification number (4)
12- 14 I3 --- IDMc ? McNamara & Sekiguchi (1986AJ.....91..557M 1986AJ.....91..557M)
identification number, <Cl* NGC 2168 Cud NNN>
16- 18 I3 --- IDC ? Cudworth (1971AJ.....76..475C 1971AJ.....76..475C)
identification number, <Cl* NGC 2168 Cd NNN>
20 I1 h RAh Hour of Right Ascension (J2000)
22- 23 I2 min RAm Minute of Right Ascension (J2000)
25- 29 F5.2 s RAs Second of Right Ascension (J2000)
31 A1 --- DE- Sign of Declination (J2000)
32- 33 I2 deg DEd Degree of Declination (J2000)
35- 36 I2 arcmin DEm Minute of Declination (J2000)
38- 41 F4.1 arcsec DEs Second of Declination (J2000)
43- 48 F6.3 mag Vmag The V band magnitude
50- 54 F5.3 mag B-V The (B-V) color index
56 I1 --- S [1/2] Source of photometry (2)
58- 59 I2 --- N Number of radial-velocity measurements
61- 67 F7.2 km/s RV ? Mean radial-velocity
69- 73 F5.2 km/s e_RV ? Standard error in RV
75- 78 F4.2 km/s sigRV ? Single-measurement precision in RV
80- 84 F5.1 km/s vsini ? Mean v*sin(i) (rotational) velocity
86- 90 F5.1 km/s e_vsini ? Standard error in vsini
92- 93 I2 % PRV ? Radial-velocity membership probability
95- 96 I2 % Ppm1 ? McNamara & Sekiguchi (1986AJ.....91..557M 1986AJ.....91..557M)
proper-motion membership probability
98- 99 I2 % Ppm2 ? Cudworth (1971AJ.....76..475C 1971AJ.....76..475C)
proper-motion membership probability
101-105 F5.2 --- e/i ? Ratio of RV standard deviation to
single-measurement RV precision
107-109 A3 --- Mmb Membership classification (3)
111-118 A8 --- Com Additional comments
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Note (1): WOCS = WIYN Open Cluster Study.
Source 23013 shows a systemic trend in the radial velocities, though
the derived e/i value is below 4.
Note (2): Source of photometry as follows:
1 = wide-field CCD images centered on M35, taken by T. von Hippel
with the Kitt Peak National Observatory (KPNO) Burrell Schmidt telescope
on 1993 November 18 and 19.
2 = BV photometry of C. P. Deliyannis (2006, private communication), taken
on the WIYN7 0.9m telescope with the S2KB 2K by 2K CCD. This photometry
derives from a mosaic of five fields. Each field has a 20'x20' field
of view, with one central field and four tiled around the center, for
a total field of view of 40'x40'.
We note that source 2 photometry is more precise than that of source 1.
The star-by-star difference in V magnitudes for the two sources is roughly
Gaussian with σ=0.06mag. However, there is a tail that extends beyond
three times this sigma value. Therefore, we caution the reader when using
magnitudes from source 1.
Note (3): the classes are as follows:
BM = binary member (membership probability from γ-RV is ≥50%)
BN = binary non-member (membership probability from γ-RV is <50%)
BLM = binary likely member (no orbital solution)
BLN = binary likely non-member (no orbital solution)
BU = binary with unknown membership
SM = single member star (membership probability from RV is ≥50%)
SN = single non-member (membership probability from RV is <50%)
U = unknown membership status
Note (4): These identification numbers are *not* those of Meibom et al.
(2009ApJ...695..679M 2009ApJ...695..679M) as indicated in the paper.
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History:
From electronic version of the journal
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(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 21-May-2012