J/A+A/417/557 Rotation & variability of PMS Stars in NGC 2264 (Lamm, 2004)
A Rotational and Variability Study of a Large Sample of PMS Stars in NGC 2264
Lamm M.H., Bailer-Jones C.A.L., Mundt R., Herbst W., Scholz A.
<Astron. Astrophys. 417, 557 (2004)>
=2004A&A...417..557L 2004A&A...417..557L
ADC_Keywords: Clusters, open ; Stars, pre-main sequence
Keywords: open clusters and associations: individual (NGC 2264) -
stars: pre-main sequence, rotation, activity, spots -
methods: data analysis, time series analysis, periodogram
Description:
Table 4 lists the 10554 stars in the area of NGC 2264 between
IC=9.8mag and IC=21mag on which we did photometry. It contains
information on the position, brightness, colours and the variability
of these stars. It also lists the spectral type taken from the
literature (if available) as well as the identification numbers of the
stars in other studies. Table 6 lists the stars detected as periodic
in this study and gives their brightness, periods determined by
different periodogram techniques, and the period finally adopted as
well as the estimated period error. Stars which passed the two adopted
PMS tests are also indicated.
Time series data were obtained in the IC band in 44 nights between
Dec. 2000 and March 2001 with the Wide Field Imager (WFI) on the
MPG/ESO 2.2m telescope on La Silla (Chile).
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table4.dat 161 10554 Photometric data
table6.dat 75 543 Periodic stars detected during this study
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 I5 --- Seq Identification number
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
20 I1 deg DEd Declination (J2000)
22- 23 I2 arcmin DEm Declination (J2000)
25- 28 F4.1 arcsec DEs Declination (J2000)
30- 34 F5.2 mag Icmag Cousins I magnitude
36- 39 F4.2 mag e_Icmag Error of Icmag
41- 45 F5.2 mag V-Ic ?=-9.00 V-IC colour
47- 51 F5.2 mag e_V-Ic ?=-9.00 Error of V-IC magnitude
53- 57 F5.2 mag R-Ic ?=-9.00 R-IC colour
59- 63 F5.2 mag e_R-Ic ?=-9.00 Error of R-IC magnitude
65- 69 F5.2 mag R-Ha ?=-9.00 Instrumental R-Halpha colour
71- 75 F5.2 mag e_R-Ha ?=-9.00 Error of instrumental R-Halpha colour
77- 84 A8 --- Var Result of variability study (2)
86- 90 F5.3 mag Sigma ?=-9.00 Standard deviation in light curve
92- 96 F5.3 mag ptp ?=-9.00 Peak-to-peak variation of light curve
98-102 A5 --- SpType Spectral type
104-108 A5 --- LClass Luminosity class
110-111 I2 --- r_SpType [1,2]?=-9 Study from which spectral type and
luminosity class was taken (3)
113-126 A14 --- Name Other name of star
128-131 I4 --- Young ?=-9 Identification number of Young et al.
(private communication)
133-136 I4 --- RMS ?=-9 Identification number of Rebull et al.
(2002AJ....123.1528R 2002AJ....123.1528R),
Cl* NGC 2264 RMS NNNN in Simbad
138-139 I2 --- LkHa ?=-9 Identification number of Herbig
(1954ApJ...119..483H 1954ApJ...119..483H),
Em* LkHA NN in Simbad
141-144 I4 --- PSB ?=-9 Identification number of Park et al.
(2000AJ....120..894P 2000AJ....120..894P),
Cl* NGC 2264 PSB NNN in Simbad
146-149 I4 --- SBL ?=-9 Identification number of Sung, Bessel &
Lee (1997AJ....114.2644S 1997AJ....114.2644S),
Cl* NGC 2264 SBL NNN in Simbad
151-153 I3 --- FMS ?=-9 Identification number of Flaccomio et
al., 1999, Cat. J/A+A/345/521
Cl* NGC 2264 FMS NNN in Simbad
155-157 I3 --- [FMS2000] ?=-9 Identification number of Flaccomio et
al. (2000A&A...355...651),
[FMS2000] XNNN in Simbad
159-161 I3 --- Walker ?=-9 Identification number of Walker
(1956ApJS....2..365W 1956ApJS....2..365W),
NGC 2264 NNN in Simbad
--------------------------------------------------------------------------------
Note (2): Variability study:
pv: periodic variable
iv: irregular variable
pv?: possible periodic
Note (3): References:
1: Young et al. (private communication)
2: Rebull et al.(2002AJ....123..1528R)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table6.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2- 6 I5 --- Seq Identification number
9- 13 F5.2 mag Icmag Cousins I magnitude
16- 19 F4.2 mag e_Icmag Error in Icmag
21- 25 F5.2 d PerScargle Period determined form Scargle periodogram
32- 36 F5.2 d PerCLEAN Period determined form CLEAN periodogram
43- 47 F5.2 d Per Finally adopted period
51- 55 F5.2 d e_Per Error of finally adopted period
60 A1 --- PMS [yn] PMS member according to the two
PMS tests?
66 I1 --- Test1 [0/1] Result of first PMS test (4)
72 I1 --- Test2 [0/1] Result of second PMS test (4)
--------------------------------------------------------------------------------
Note (4): Results of PMS test:
0: test failed
1: test passed
--------------------------------------------------------------------------------
History:
* 13-Dec-2003: Creation by M. H. Lamm
* 06-Jun-2004: The following inconsistencies were corrected in table4:
- Flacc 5 associated to #3389 (instead of #2456)
- Flacc 25 associated to #3554 (instead of #4349)
- Flacc 263 associated to #5394 (instead of #5400)
- Star #4511 association with Flacc 154 removed
- Star #6165 association with Flacc 119 removed
- Star #6438 association with Flacc 140 removed
- Star #3615 is associated to Walker 52 (instead of Walker 53)
- Star #5070 is associated to Walker102 (instead of Walker101)
- Star #5952 is associated to Flacc 367 (instead of Flacc 267)
- Star #7154 is associated to Walker215 (instead of Walker213)
- Walker 156 associated to #5878 (instead of #5849)
(End) M. H. Lamm [Max-Planck-Institude for Astronomy] 13-Dec-2003