J/ApJ/671/605 NGC 2264 and ONC PMS stars in the infrared (Cieza+, 2007)
Testing the disk regulation paradigm with Spitzer observations.
II. A clear signature of star-disk interaction in NGC 2264 and the
Orion Nebula Cluster.
Cieza L., Baliber N.
<Astrophys. J., 671, 605-615 (2007)>
=2007ApJ...671..605C 2007ApJ...671..605C (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, open ; Stars, pre-main sequence ; Photometry, infrared ;
Millimetric/submm sources
Keywords: infrared: stars - open clusters and associations: individual
(NGC 2264, Orion Nebula Cluster) -
planetary systems: protoplanetary disks
Abstract:
Observations of pre-main-sequence star rotation periods reveal slow
rotators in young clusters of various ages, indicating that angular
momentum is somehow removed from these rotating masses. The mechanism
by which spin-up is regulated as young stars contract has been one of
the longest standing problems in star formation. Attempts to
observationally confirm the prevailing theory that magnetic
interaction between the star and its circumstellar disk regulates
these rotation periods have produced mixed results. In this paper, we
use the unprecedented disk identification capability of the Spitzer
Space Telescope to test the star-disk interaction paradigm in two
young clusters, NGC 2264 and the Orion Nebula Cluster (ONC).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 111 445 NGC 2264 stars with periods from the literature
and Spitzer data
table2.dat 101 464 Orion stars detected in 3.6 and 8.0 microns with
periods from the literature
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See also:
J/AJ/127/2228 : VRI photometry of PMS stars in NGC 2264 OB (Makidon+, 2004)
J/A+A/430/1005 : VRIHα photometry of NGC 2264 variables (Lamm+, 2005)
J/AJ/113/1733 : Orion Nebula Cluster population (Hillenbrand 1997)
J/AJ/121/1676 : ONC low-mass stars photometry (Rebull+, 2001)
J/ApJ/646/297 : Spitzer observations of pre-main-sequence stars (Rebull+ 2006)
J/ApJ/649/862 : IR phot. of IC 348 pre-main-sequence stars (Cieza+, 2006)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 9 F9.5 deg RAdeg Right Ascension in decimal degrees (J2000)
11- 17 F7.5 deg DEdeg Declination in decimal degrees (J2000)
19- 23 F5.2 mag Rcmag The Rc band magnitude
25- 29 F5.2 mag Icmag The Ic band magnitude
31- 35 F5.2 d Per Period
38 I1 --- Ref [1/2] Reference for optical photometry and
period (1)
41- 48 E8.2 mJy F3.6 ? IRAC 3.6 micron flux
50- 57 E8.2 mJy e_F3.6 ? Error in 3.6 micron flux
59- 66 E8.2 mJy F4.5 ? IRAC 4.5 micron flux
68- 75 E8.2 mJy e_F4.5 ? Error in 4.5 micron flux
77- 84 E8.2 mJy F5.8 ? IRAC 5.8 micron flux
86- 93 E8.2 mJy e_F5.8 ? Error in 5.8 micron flux
95-102 E8.2 mJy F8.0 ? IRAC 8 micron flux
104-111 E8.2 mJy e_F8.0 ? Error in 8 micron flux
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Note (1): Periods and optical photometry taken from:
1 = Lamm et al. (2005, Cat. J/A+A/430/1005)
2 = Makidon et al. (2004, Cat. J/AJ/127/2228)
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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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1- 10 A10 --- Name Star name (1)
12- 13 I2 h RAh Hour of Right Ascension (J2000) (2)
15- 16 I2 min RAm Minute of Right Ascension (J2000) (2)
18- 21 F4.1 s RAs Second of Right Ascension (J2000) (2)
23 A1 --- DE- Sign of the Declination (J2000) (2)
24- 25 I2 deg DEd Degree of Declination (J2000) (2)
27- 28 I2 arcmin DEm Arcminute of Declination (J2000) (2)
30- 33 F4.1 arcsec DEs Arcsecond of Declination (J2000) (2)
35- 39 F5.2 mag F3.6 IRAC 3.6 micron magnitude (2)
41- 45 F5.3 mag e_F3.6 Error in F3.6 (2)
47- 51 F5.2 mag F4.5 IRAC 4.5 micron magnitude (2)
53- 57 F5.3 mag e_F4.5 Error in F4.5 (2)
59- 63 F5.2 mag F5.8 IRAC 5.8 micron magnitude (2)
65- 69 F5.3 mag e_F5.8 Error in F5.8 (2)
71- 75 F5.2 mag F8.0 IRAC 8.0 micron magnitude (2)
77- 81 F5.3 mag e_F8.0 Error in F8.0 (2)
83- 87 F5.2 d Per Period (2)
89- 94 A6 --- SpT MK spectral type
96- 98 A3 --- r_SpT Reference for spectral type (3)
100-101 A2 --- Mi [LH NO] Mass indicator, Low- or High-mass (4)
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Note (1): Stars names are from:
R01 = Rebull (2001, Cat. J/AJ/121/1676, [R2001] NNNN)
HBC = Herbig & Bell (1988, Cat. V/73)
Par = Parenago (1954, Cat. II/171, Parenago NNNN)
CHS = Carpenter et al. (2001, Cat. J/AJ/121/3160, [CHS2001] NNNNN)
H97 = Hillenbrand (1997, Cat. J/AJ/113/1733, [H97b] NNNNa)
HBJM = Herbst et al. (2001ApJ...554L.197H 2001ApJ...554L.197H, [H97b] NNNN)
JW = Jones & Walker (1988AJ.....95.1755J 1988AJ.....95.1755J)
Note (2): From Rebull et al. (2006, Cat. J/ApJ/646/297).
Note (3): R01 spectral types come from Rebull (2001, Cat. J/AJ/121/1676),
while the H97 spectral types come from Hillenbrand (1997, Cat.
J/AJ/113/1733).
Note (4): Stars with M2 and earlier spectral types are considered high-mass
stars, while stars with M2.5 and later spectral types are considered
low-mass stars.
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History:
From electronic version of the journal
References:
Cieza & Baliber, Paper I 2006ApJ...649..862C 2006ApJ...649..862C, Cat. J/ApJ/649/862
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 14-Mar-2010