J/A+A/396/513 Stellar Rotation in the Orion Nebula Cluster (Herbst+, 2002)
Stellar rotation and variability in the Orion Nebula Cluster.
Herbst W., Bailer-Jones C.A.L., Mundt R., Meisenheimer K., Wackermann R.
<Astron. Astrophys. 396, 513 (2002)>
=2002A&A...396..513H 2002A&A...396..513H
ADC_Keywords: Clusters, open ; Stars, pre-main sequence ;
Keywords: open clusters and associations: individual (Orion Nebula Cluster)
stars: pre-main sequence - stars: rotation
Description:
Table 1 lists the 1562 stars in the Orion Nebula Cluster brighter than
I=20mag on which we did photometry. It contains information on the
position, brightness and variability of these stars, as well as their
closest companions. Table 2 lists the stars detected as periodic in
this study and gives their brightness, period and a comparison with
results of previous studies. Table 3 is a summary of observational
data for all stars in the Orion Nebula Cluster with rotation periods
reported here or in earlier studies.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 92 1561 Photometric Data
table2.dat 64 369 Periodic stars detected during this study
table3.dat 66 433 A comprehensive list of stars in the Hillenbrand
(1997, Cat. J/AJ/113/1733) catalog detected
to be periodic in this study, HRHC or SMMV
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See also:
J/AJ/121/1676 : ONC low-mass stars photometry (Rebull+, 2001)
J/AJ/113/1733 : Orion Nebula Cluster population (Hillenbrand 1997)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 5 I5 --- ID Sequential number (G1)
6 A1 --- m_ID [ab] Multiplicity index on ID
8 I1 h RAh Right ascension (J2000)
10- 11 I2 min RAm Right ascension (J2000)
13- 17 F5.2 s RAs Right ascension (J2000)
19 A1 --- DE- Declination sign (J2000)
20 I1 deg DEd Declination (J2000)
22- 23 I2 arcmin DEm Declination (J2000)
25- 28 F4.1 arcsec DEs Declination (J2000)
30- 31 I2 --- Ndata Number of data points obtained
33- 37 F5.2 mag Average magnitude on our instrumental system
39- 43 F5.3 mag e_ rms uncertainty on
45- 48 F4.2 mag Range Difference of medians of upper and lower 15%
of data points
50- 54 F5.2 yr Per ?=0.00 Rotation Period
56- 59 F4.1 arcsec Sep Separation between star and its nearest
neighbor
61- 65 F5.2 mag magdif ? Magnitude difference between star and its
nearest neighbor
67- 71 I5 --- NID ID number of nearest neighbor
72 A1 --- chip CCD chip on which star is located
74- 76 I3 --- dnum Internal numbering system for identification
78- 84 F7.2 pix Xpos X location of star on reference image
86- 92 F7.2 pix Ypos Y location of star on reference image
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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4- 8 I5 --- ID ID number (G1)
12- 16 F5.2 mag Average magnitude on our instrumental system
20- 24 F5.2 d Per Rotation period
29- 32 F4.1 --- Power Normalized power from periodogram
37- 40 F4.2 d Per2 Possible alternate rotation period with power
less than 5% below that listed in Power
44- 48 F5.2 d P(HRHC) Rotation period of star given by
Herbst et al. (2000AJ....119..261H 2000AJ....119..261H)
52- 56 F5.2 d P(SMMV) Rotation period of star given by
Stassun et al. (1999AJ....117.2941S 1999AJ....117.2941S)
60- 64 F5.2 d P(Adopt) Rotation period of star adopted here
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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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2- 6 I5 --- ID ID Number from H97 (G1)
12- 16 F5.2 d Per Adopted rotation period
22- 25 A4 --- r_Per Source of rotation period (2)
31- 36 F6.3 [K] LogT ?=-9.999 Effective temperature from H97 (3)
42- 46 F5.2 [solLum] LogL ?=-9.99 Luminosity from H97 (3)
52- 56 F5.2 solMass Mass ?=-9.99 Mass from H97 (3)
62- 66 F5.2 mag Delta(I-K) ?=-9.99 Excess infrared color from
Hillenbrand et al. (1998AJ....116.1816H 1998AJ....116.1816H)
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Note (2): If blank, the source is this paper; otherwise, the code is:
HRHC = Herbst et al. (2000AJ....119..261H 2000AJ....119..261H),
SMMV = Stassun et al. (1999AJ....117.2941S 1999AJ....117.2941S)
Note (3): H97: Hillenbrand (1997, Cat. J/AJ/113/1733)
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Global notes:
Note (G1): Our ID number is identical to Hillenbrand (1997AJ....113.1733H 1997AJ....113.1733H)
for numbers less than 10000 and represents an extension of her system
for stars not included in her catalog (i.e. those with numbers
exceeding 10000 in this table).
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Acknowledgements: Bill Herbst
(End) William Herbst [Wesleyan U., USA], Patricia Bauer [CDS] 9-Dec-2002