J/MNRAS/383/1588 VIc photometry of NGC 2547 low-mass stars (Irwin+, 2008)
The Monitor project: rotation of low-mass stars in the open cluster NGC 2547.
Irwin J., Hodgkin S., Aigrain S., Bouvier J., Hebb L., Moraux E.
<Mon. Not. R. Astron. Soc., 383, 1588-1602 (2008)>
=2008MNRAS.383.1588I 2008MNRAS.383.1588I
ADC_Keywords: Clusters, open ; Surveys ; Photometry, Cousins
Keywords: techniques: photometric - surveys - stars: rotation -
open clusters and associations: individual: NGC 2547
Abstract:
We report on the results of an I-band time-series photometric survey
of NGC 2547 using the MPG/ESO 2.2-m telescope with Wide Field Imager,
achieving better than 1 per cent photometric precision per data point
over 14~<I~<18. Candidate cluster members were selected from a V
versus V-I colour-magnitude diagram over 12.5<V<24 (covering masses
from 0.9M☉ down to below the brown dwarf limit), finding 800
candidates, of which we expect ∼330 to be real cluster members, taking
into account contamination from the field (which is most severe at the
extremes of our mass range). Searching for periodic variations in
these gave 176 detections over the mass range 0.1~<M/M☉<0.9.
Description:
Photometric monitoring observations were obtained using the MPG/ESO
2.2-m telescope with WFI in service mode, with ∼100h of observations
distributed over a ∼8 month period from 2005 October to 2006 May.
Machine-readable copies of the data tables from all the Monitor
rotation period publications are also available at
http://www.ast.cam.ac.uk/research/monitor/rotation/ .
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 73 176 Properties of our 176 rotation candidates
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See also:
J/A+A/448/189 : IC 4665 low-mass stars (IzJHK) (de Wit+, 2006)
J/A+A/471/499 : Low-mass stars and brown dwarfs in Blanco 1 (Moraux+, 2007)
J/MNRAS/376/580 : NGC 2169 low-mass stars (RcIc) (Jeffries+, 2007)
J/MNRAS/377/741 : NGC 2516 low-mass stars (VIc) (Irwin+, 2007)
J/MNRAS/335/291 : BVI photometry of NGC 2547 (Naylor+, 2002)
J/MNRAS/351/1401 : RcIcZ photometry of NGC 2547 (Jeffries+, 2004)
J/MNRAS/358/13 : Faint dwarfs in NGC 2547 (Jeffries+, 2005)
J/MNRAS/367/781 : XMM observations of NGC 2547 (Jeffries+, 2006)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 14 A14 ---- [IHA2008] Identifier (N2547-N-N-NNNN) (1)
16- 17 I2 h RAh Right ascension (J2000)
19- 20 I2 min RAm Right ascension (J2000)
22- 26 F5.2 s RAs Right ascension (J2000)
28 A1 --- DE- Declination sign (J2000)
29- 30 I2 deg DEd Declination (J2000)
32- 33 I2 arcmin DEm Declination (J2000)
35- 38 F4.1 arcsec DEs Declination (J2000)
40- 44 F5.2 mag Vmag Johnson V magnitude
46- 50 F5.2 mag Icmag Cousins I magnitude
52- 57 F6.3 d Per Period
59- 63 F5.3 mag Iamp I-band amplitude in the instrumental bandpass
65- 68 F4.2 solMass Mass Interpolated mass (2)
70- 73 F4.2 solRad Rad Interpolated radius (2)
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Note (1): Our identifiers are formed using a simple scheme of the cluster
name, field number, CCD number and a running count of stars in each
CCD, concatenated with dashes.
Note (2): From the models of Baraffe et al. (1998, Cat. J/A+A/337/403),
derived using the I magnitudes) are given (where available).
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 22-May-2008