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J/ApJ/649/862    IR phot. of IC 348 pre-main-sequence stars  (Cieza+, 2006)

Testing the disk regulation paradigm with Spitzer observations. I. Rotation periods of pre-main-sequence stars in the IC 348 cluster. Cieza L., Baliber N. <Astrophys. J., 649, 862-878 (2006)> =2006ApJ...649..862C
ADC_Keywords: Clusters, open ; Stars, pre-main sequence ; Photometry, infrared Keywords: infrared: stars - open clusters and associations: individual: IC 348 - planetary systems: protoplanetary disks Abstract: We present 105 stellar rotation periods in the young cluster IC 348, 75 of which are new detections, increasing the total number of known periods in this cluster to 143. The period distribution resembles that seen in the heart of the Orion Nebula cluster by Herbst and colleagues. Stars estimated to be less massive than 0.25M show a unimodal distribution of fast rotators (P∼1-2days) and a tail of slower rotators, while stars estimated to be more massive than 0.25M show a bimodal distribution with peaks at 2 and 8-days. We combine all published rotation periods in IC 348 with Spitzer mid-IR (3.6, 4.5, 5.8, and 8.0um) photometry, an unprecedentedly efficient and reliable disk indicator, in order to test the disk-braking paradigm. Description: For our photometric measurements of IC 348 stellar rotation periods, data were collected using the McDonald Observatory 0.76m Telescope and its Prime Focus Corrector which provides a 1° field of view, 46.2'x46.2' of which is covered by a 2048x2048 CCD. Ic-band timeseries photometry was performed on data collected during three observing runs: 2003 December 6-22, 2004 January 4-8, and 2004 January 24-30. Ten slightly overlapping fields were used to cover the entire IRAC map of the Perseus molecular cloud obtained as part of the Spitzer Legacy Project From Molecular Cores to Planet-forming Disks, (c2d; Evans et al., 2003PASP..115..965E). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 143 143 Periodic Sample in IC 348
See also: J/AJ/127/1602 : Cousins RI photometry in IC 348 (Cohen+, 2004) J/ApJ/593/1093 : IC 348 membership (Luhman+, 2003) J/ApJ/597/555 : IR photometry of IC 348 young brown dwarfs (Mainzer+, 2003) J/A+A/409/147 : J magnitude of IC 348 brown dwarfs (Preibisch+, 2003) J/A+A/396/513 : Stellar Rotation in the Orion Nebula Cluster (Herbst+, 2002) J/AJ/122/866 : X-ray sources in IC 348 from Chandra (Preibisch+, 2001) J/ApJ/541/977 : HST observations of low-mass stars in IC 348 (Najita+, 2000) J/ApJ/497/736 : The young cluster IC 348 (Herbig, 1998) J/A+A/324/549 : Deep UVBRI photometry in IC 348 (Trullols+ 1997) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq Sequential number, Cl* IC 348 CB NNN in Simbad 5- 11 F7.4 deg RAdeg Right ascension in decimal degrees (J2000) 13- 19 F7.4 deg DEdeg Declination in decimal degrees (J2000) 21- 24 F4.1 d Per Rotation period 26- 27 I2 --- PS ? Normalized power spectrum peak (3) 29- 36 A8 --- r_Per Period reference (1) 37- 41 A5 --- SpT Spectral type from Luhman et al. 2003, Cat. J/ApJ/593/1093. 43- 47 F5.2 mag Rcmag ? Cousins R magnitude (2) 49- 53 F5.2 mag Icmag ? Cousins I magnitude (2) 55- 59 F5.2 mag Jmag ? Johnson J magnitude 61- 65 F5.2 mag Hmag ? Johnson H magnitude 67- 71 F5.2 mag Ksmag ? Johnson Ks magnitude 73- 80 E8.3 mJy [3.6] ? Spitzer 3.6um flux 82- 89 E8.3 mJy e_[3.6] ? rms uncertainty on [3.6] 91- 98 E8.3 mJy [4.5] ? Spitzer 4.5um flux 100-107 E8.3 mJy e_[4.5] ? rms uncertainty on [4.5] 109-116 E8.3 mJy [5.8] ? Spitzer 5.8um flux 118-125 E8.3 mJy e_[5.8] ? rms uncertainty on [5.8] 127-134 E8.3 mJy [8.0] ? Spitzer 8.0um flux 136-143 E8.3 mJy e_[8.0] ? rms uncertainty on [8.0]
Note (1): Rotation period reported in the following: 1 = this paper, 2 = Kiziloglu et al. (2005AJ....130.2766K), 3 = Littlefair et al. (2005, Cat. J/MNRAS/358/341) 4 = Cohen et al. (2004, Cat. J/AJ/127/1602) Note (2): The Ic and Rc photometry of the following stars have been taken from Cohen et al. (2004, Cat. J/AJ/127/1602): ID 45, 49, 79, 82, 87, 96, and 111. Note (3): Peak of the normalized power spectrum peak of periodogram (see Scargle (1982ApJ...263..835S); a value of 10 corresponds to a false alarm probability of 1%.
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 18-Jul-2008
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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