J/AJ/164/80 Periods and supporting data for UCL/LCC non/members (Rebull+, 2022)
Rotation of Low-mass Stars in Upper Centaurus-Lupus and Lower Centaurus-Crux
with TESS.
Rebull L.M., Stauffer J.R., Hillenbrand L.A., Cody A.M., Kruse E.,
Powell B.P.
<Astron. J., 164, 80 (2022)>
=2022AJ....164...80R 2022AJ....164...80R
ADC_Keywords: Associations, stellar; Rotational velocities; Infrared
Keywords: Stellar rotation ; Stellar associations ; Low mass stars
Abstract:
We present stellar rotation rates derived from Transiting Exoplanet
Survey Satellite (TESS) light curves for stars in Upper
Centaurus-Lupus (UCL; ∼136pc, ∼16Myr) and Lower Centaurus-Crux (LCC;
∼115pc, ∼17Myr). We find spot-modulated periods (P) for ∼90% of
members. The range of light-curve and periodogram shapes echoes that
found for other clusters with K2, but fewer multiperiod stars may be
an indication of the different noise characteristics of TESS, or a
result of the source selection methods here. The distribution of P as
a function of color as a proxy for mass fits nicely in between that
for both older and younger clusters observed by K2, with fast rotators
being found among both the highest and lowest masses probed here, and
a well-organized distribution of M-star rotation rates. About 13% of
the stars have an infrared excess, suggesting a circumstellar disk;
this is well matched to expectations, given the age of the stars.
There is an obvious pileup of disked M stars at P∼2days, and the
pileup may move to shorter P as the mass decreases. There is also a
strong concentration of disk-free M stars at P∼2days, hinting that
perhaps these stars have recently freed themselves from their disks.
Exploring the rotation rates of stars in UCL/LCC has the potential to
help us understand the beginning of the end of the influence of disks
on rotation, and the timescale on which stars respond to unlocking.
Objects:
---------------------------------------------------------
RA (ICRS) DE Designation(s)
---------------------------------------------------------
12 19 -57.1 LCC = NAME Lower Centaurus Crux
15 24 -41.9 UCL = NAME Upper Centaurus Lupus
---------------------------------------------------------
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2.dat 243 3714 Periods and supporting data for UCL/LCC members
with viable light curves
table3.dat 243 387 Periods and supporting data for discarded/rejected
sources
table4.dat 317 596 Comparison to literature periods
table5.dat 239 151 List of unusual objects
table6.dat 74 69 List of objects with timescales
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See also:
B/mk : Catalogue of Stellar Spectral Classifications (Skiff, 2009- )
B/gcvs : General Catalogue of Variable Stars (Samus+, 2007-2017)
II/240 : The DENIS database first release (Epchtein+, 1999)
I/297 : NOMAD Catalog (Zacharias+ 2005)
I/305 : The Guide Star Catalog, Version 2.3.2 (GSC2.3) (STScI, 2006)
I/320 : SPM 4.0 Catalog (Girard+, 2011)
I/347 : Distances to 1.33 billion stars in Gaia DR2 (Bailer-Jones+, 2018)
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
II/361 : MDFC Version 10 (Cruzalebes+, 2019)
IV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)
II/366 : ASAS-SN catalog of variable stars (Jayasinghe+, 2018-2020)
I/353 : The Guide Star Catalog, Version 2.4.2 (GSC2.4.2) (STScI, 2020)
I/352 : Distances to 1.47 billion stars in Gaia EDR3 (Bailer-Jones+, 2021)
VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)
J/A+AS/128/561 : UBVRI photometry of southern T Tauri stars (Batalha+ 1998)
J/AJ/117/354 : OB associations from Hipparcos (de Zeeuw+, 1999)
J/A+A/468/1039 : VRIJK photometry of GQ Lup (Broeg+, 2007)
J/MNRAS/385/1749 : UNSW catalog of Variable Stars (Christiansen+, 2008)
J/A+A/500/1045 : Cool stars and brown dwarfs in Lupus clouds (Comeron+, 2009)
J/A+A/520/A15 : RACE-OC project; YSOs within 100pc (Messina+, 2010)
J/A+A/532/A10 : RACE-OC project. II. (Messina+, 2011)
J/A+A/548/A79 : INTEGRAL-OMC opt. variable sources (Alfonso-Garzon+, 2012)
J/AcA/62/67 : ASAS photometry of ROSAT sources (Kiraga, 2012)
J/ApJ/758/31 : IR photometry for members of Upper Sco (Luhman+, 2012)
J/ApJ/746/154 : Improved kinematic parallaxes Sco-Cen members (Pecaut+, 2012)
J/AJ/146/136 : BEST-II catalog of variables I. Southern fields (Fruth+, 2013)
J/ApJS/208/9 : Intrinsic colors and temperatures of PMS stars (Pecaut+, 2013)
J/ApJS/211/25 : Spitzer/IRS debris disk catalog. I. (Chen+, 2014)
J/AJ/147/82 : Monitoring of disk-bearing stars in NGC 2264 (Cody+, 2014)
J/A+A/573/A126 : VLT/NaCo Large program I. Sample (Desidera+, 2015)
J/A+A/580/A26 : T Tauri star population in Lupus (Galli+, 2015)
J/ApJ/798/87 : Spitzer/IRS debris disk catalog. II. (Mittal+, 2015)
J/ApJS/225/15 : IR excess stars from Tycho-2 and AllWISE (Cotten+, 2016)
J/A+A/591/A43 : Differential rotation in solar-like stars (Distefano+, 2016)
J/MNRAS/461/794 : Scorpius-Centaurus K-Type Stars (Pecaut+, 2016)
J/AJ/152/113 : Pleiades memb. with K2 light curves I. Periods (Rebull+, 2016)
J/AJ/152/114 : Pleiades members with K2 light curves. II. (Rebull+, 2016)
J/AJ/152/115 : Pleiades members with K2 light curves. III. (Stauffer+, 2016)
J/MNRAS/469/3688 : CSS Periodic Variable Star Catalogue (Drake+, 2017)
J/ApJ/844/66 : The Sco-Cen Rotation Catalogue - SCRC (Mellon+ 2017)
J/ApJ/839/92 : Praesepe members with K2 light curve data (Rebull+, 2017)
J/AJ/156/71 : K2 Campaign 2; disk-bearing stars in Sco & Oph (Cody+, 2018)
J/ApJ/868/32 : Large moving group within the LCC association (Goldman+, 2018)
J/AJ/155/196 : Analysis of K2 LCs members of USco & ρOph (Rebull+, 2018)
J/AJ/156/275 : Rotational evolution young, binary M dwarfs (Stauffer+, 2018)
J/AJ/156/102 : TESS Input Catalog and Candidate Target List (Stassun+, 2018)
J/A+A/620/A172 : Solar neighbourhood young stars 3D mapping (Zari+, 2018)
J/ApJS/245/13 : CDIPS. I. LCs from TESS sectors 6 and 7 (Bouma+, 2019)
J/ApJ/877/60 : YMGs. I. Young binaries & lithium-rich stars (Bowler+, 2019)
J/A+A/623/A112 : The Sco OB2 population from Gaia DR2 data (Damiani+, 2019)
J/AJ/158/122 : Local structure &star formation history of MW (Kounkel+, 2019)
J/MNRAS/484/5049 : DECam Survey of Scorpius Centaurus (Moolekamp+, 2019)
J/A+A/625/A14 : Reclassification of Cepheids in the Gaia DR2 (Ripepi+, 2019)
J/ApJ/904/140 : Ruprecht 147 members & rot. data 5 other cl. (Curtis+, 2020)
J/AJ/159/273 : Taurus members & nonmembers with K2 data (Rebull+, 2020)
J/A+A/645/A30 : SB updated census in SACY sample (Zuniga-Fernandez+, 2021)
J/AJ/163/25 : Circumstellar disk populations Sco-Cen complex (Luhman, 2022)
J/AJ/163/24 : Stellar populations in the Sco-Cen complex (Luhman, 2022)
Byte-by-byte Description of file: table[23].dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 I10 --- TIC TESS Input Catalog identifier
12- 29 A18 --- Name Coordinate-based (RA/DE, J2000) name for target
31- 53 A23 --- OName Alternate name for target
55- 73 I19 --- Gaia ? Gaia DR2 ID
75- 82 F8.3 pc Dist ?=-9.00 Distance from Bailer-Jones+, 2018, I/347
84- 89 A6 --- Bin Membership sample (gold, silver, or bronze)
91- 95 F5.2 mag Kmag ? Ks magnitude, Vega, if observed
97-100 F4.2 mag V-Ks ? V-Ks color used, in Vega mags, observed or
inferred; see text
102-106 F5.2 mag EV-Ks ? E(V-Ks) adopted for this star, Sec. 3.3
108-112 F5.2 mag Kmag0 ? Dereddened Ks magnitude, Vega, as inferred,
Sec. 3.3
114-117 F4.2 mag V-K0 ? Dereddened V-Ks color, Vega, as inferred,
Sec. 3.3 (1)
119-120 I2 --- r_V-K0 Source of vmk-used, Sec. 3.1 (2)
122-123 I2 --- r_EV-Ks Source of evmk, Sec. 3.3 (3)
125-131 F7.4 d Per1 ? Primary period (4)
133-138 F6.4 d Per2 ? Secondary period
140-145 F6.4 d Per3 ? Tertiary period
147-152 F6.4 d Per4 ? Quaternary period
154-156 A3 --- Code-P uncertainty code for period (5)
158-162 A5 --- IRex? Whether an IR excess is present or not, Sec. 3.4
164-173 A10 --- IRex-wave Minimum wavelength of detected IR excess,
Sec. 3.4
175-180 F6.2 --- SED ? best-fit slope to all detections between 2 and
25 microns
182-184 A3 --- SEDclass SED class (6)
186-188 A3 --- dipper LC matches dipper characteristics, Sec. 4.5
190-192 A3 --- burster LC matches burster characteristics, Sec. 4.5
194-199 A6 --- multi-Per Single or multi-period star
201-203 A3 --- dd LC and power spectrum matches double-dip
characteristics, Sec. 4.5
205-207 A3 --- ddmoving LC and power spectrum matches moving double-dip
characteristics, Sec. 4.5
209-211 A3 --- shape LC matches shape changer characteristics,
Sec. 4.5
213-215 A3 --- beater LC has beating visible, Sec. 4.5
217-219 A3 --- peak power spectrum has a complex, structured peak
and/or has a wide peak, Sec. 4.5
221-223 A3 --- peak-r power spectrum has resolved close peaks,
Sec. 4.5
225-227 A3 --- Dist-r power spectrum has resolved distant peaks,
Sec. 4.5
229-231 A3 --- pulsator power spectrum and LC match pulsator
characteristics, Sec. 4.5
233-237 A5 --- scallop LC matches scallop or flux dip characteristics,
Sec. 4.5, Appendix C
239-243 A5 --- EB LC has characteristics of eclipsing binary,
Sec. 4.5, Appendix C
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Note (1): Rounded to nearest 0.1 to emphasize the relatively low accuracy
Note (2): References as follows:
1 = V measured directly from the literature (including SIMBAD) and Ks from
2MASS;
2 = V from the literature (see Sec. 3.1) and Ks from 2MASS;
3 = (V - Ks) inferred from Gaia DR1 G and Ks from 2MASS (see Sec. 3.1);
4 = (V -Ks) inferred from Pan-STARRS1 g and Ks from 2MASS (see Sec. 3.1);
6 = V inferred from well-populated optical SED and Ks from 2MASS
(see Sec. 3.1);
7 = (V - Ks) inferred from Gaia DR2 G and Ks from 2MASS (see Sec. 3.1);
-9 = no measure of (V-Ks) [Not used].
Note (3): References as follows:
1 = dereddening from JHKs diagram (see Sec. 3.3);
2 = dereddening back to (V - Ks)0 expected for spectral type;
3 = dereddening from SED fits;
4 = used median E(V-Ks)=0 (see Sec. 3.3);
-9 = no measure of E(V-Ks) [Not used].
Note (4): Taken to be rotation period in cases where there is >1 period
Note (5): Codes as follows:
n = no worry, full confidence; by far the most common value;
(n) = (no period);
n? = progressively less confident periods
y? = progressively less confident periods
Note (6): Based on the SED slope between 2 and 25 microns.
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Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 I10 --- TIC TESS Input Catalog identifier
12- 29 A18 --- Name Coordinate-based (RA/DE, J2000) name for target
31- 37 F7.4 d Per-K [0.31/18.4]? Period, Kiraga, 2012, J/AcA/62/67
39- 43 F5.3 d Per-M [0.31/8.58]? Period Mellon+, 2017, J/ApJ/844/66
45- 50 F6.3 d Per-Gaia [0.46/31.5]? Period Gaia DR2
52- 58 F7.3 d Per-ASAS [0.27/815]? Period ASAS-SN
60- 65 F6.3 d Per-Lit [0.44/11.3]? Period other literature
67- 67 A1 --- q_Per-Lit [:] Quality flag on plit
69- 91 A23 --- r_Per-Lit Citation for literature source of plit (1)
93- 98 F6.3 d Per1 [0.23/16.2]? first period reported here
100-104 F5.3 d Per2 [0.17/6.52]? second period reported here
106-110 F5.3 d Per3 [0.53/6.17]? third period reported here
112-115 F4.2 d Per4 [4.33]? fourth period reported here
117-124 A8 --- match Is this a match?
126-317 A192 --- Note Notes
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Note (1): References as follows:
Alfonso+12 = Alfonso-Garzon+, 2012, J/A+A/548/A79
Batalha+98 = Batalha+, 1998, J/A+AS/128/561
Christiansen+08 = Christiansen+, 2008, J/MNRAS/385/1749
Desidera+15 = Desidera+, 2015, J/A+A/573/A126
Distefano+16 = Distefano+, 2016, J/A+A/591/A43
Donati+12 = Donati+, 2012MNRAS.425.2948D 2012MNRAS.425.2948D
Drake+17 = Drake+, 2017, J/MNRAS/469/3688
Fruth+13 = Fruth+, 2013, J/AJ/146/136
Kospal+14 = Kospal+, 2014A&A...561A..61K 2014A&A...561A..61K
Kiraga12 = Kiraga+, 2012, J/AcA/62/67
Messina+10 = Messina+, 2010, J/A+A/520/A15
Messina+10;Samus+17 = Messina+, 2010, J/A+A/520/A15 and Samus+, 2017, B/gcvs
Messina+11 = Messina+, 2011, J/A+A/532/A10
Samus+17 = Samus+, 2017, B/gcvs
Wichmann+98 = Wichmann+, 1998A&A...330..521W 1998A&A...330..521W
Zuniga-Fernandez+21 = Zuniga-Fernandez+, 2021, J/A+A/645/A30
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Byte-by-byte Description of file: table5.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 I10 --- TIC TESS Input Catalog identifier
12- 29 A18 --- Name Coordinate-based (RA/DE, J2000) name for target
31- 36 A6 --- Bin Membership sample (gold, silver, or bronze)
38- 58 A21 --- Conf Sample confidence (1)
60-239 A180 --- Notes Notes
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Note (1): Sample confidence means how confident we are in both the placement
in the category (e.g., 'scallop' or 'EB') and in the measured period
being rotation.
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Byte-by-byte Description of file: table6.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 I10 --- TIC TESS Input Catalog identifier
12- 29 A18 --- Name Coordinate-based (RA/DE, J2000) name for target
31- 74 A44 d Timescale Timescale and/or Notes
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History:
From electronic version of the journal
(End) Prepared by [AAS], Coralie Fic [CDS], 04-Nov-2022