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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
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:
FileName Lrecl Records Explanations
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
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
Bytes Format Units Label Explanations
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 <m816> Average magnitude on our instrumental system 39- 43 F5.3 mag e_<m816> rms uncertainty on <m816> 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
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
4- 8 I5 --- ID ID number (G1) 12- 16 F5.2 mag <m816> 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) 52- 56 F5.2 d P(SMMV) Rotation period of star given by Stassun et al. (1999AJ....117.2941S) 60- 64 F5.2 d P(Adopt) Rotation period of star adopted here
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
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)
Note (2): If blank, the source is this paper; otherwise, the code is: HRHC = Herbst et al. (2000AJ....119..261H), SMMV = Stassun et al. (1999AJ....117.2941S) Note (3): H97: Hillenbrand (1997, Cat. J/AJ/113/1733)
Global notes: Note (G1): Our ID number is identical to Hillenbrand (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).
Acknowledgements: Bill Herbst
(End) William Herbst [Wesleyan U., USA], Patricia Bauer [CDS] 9-Dec-2002
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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