J/ApJS/250/20 Rotation periods in TESS objects of interest (TOIs) (Canto+, 2020)
A search for rotation periods in 1000 TESS objects of interest.
Canto Martins B.L., Gomes R.L., Messias Y.S., de Lira S.R., Leao I.C.,
Almeida L.A., Teixeira M.A., das Chagas M.L., Bravo J.P.,
Bewketu Belete A., De Medeiros J.R.
<Astrophys. J. Suppl. Ser., 250, 20-20 (2020)>
=2020ApJS..250...20C 2020ApJS..250...20C (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple; Effective temperatures
Keywords: Stellar rotation; Exoplanet catalogs; Stellar photometry
Variable stars; Stellar pulsations
Abstract:
The high-quality light curves from the Transiting Exoplanet Survey
Satellite (TESS) represent a unique laboratory for the study of
stellar rotation, which is a fundamental observable driving stellar
and planetary evolution, including planetary atmospheres and impacting
habitability conditions and the genesis of life around stars. As of
2020 April 14, this mission delivered public light curves for 1000
TESS objects of interest (TOIs), observed with a 2 minute cadence
during the first 20 months of the mission. Here, we present a search
for rotation signatures in these TOIs, using fast Fourier transform,
Lomb-Scargle, and wavelet techniques, accompanied by a rigorous visual
inspection. This effort revealed 163 targets with rotation signatures,
131 of which present unambiguous rotation periods ranging from 0.321
and 13.219 days, whereas 32 of them present dubious rotation
periodicities. Of these stars, 109 show flux fluctuations whose root
cause is not clearly identified. For 714 TOIs, the light curves show a
noisy behavior, corresponding to typically low-amplitude signals. Our
analysis has also revealed 10 TOI stars with pulsation periodicities
ranging from 0.049 to 2.995 days and four eclipsing binaries. With
upcoming TESS data releases, our periodicity analysis will be expanded
to almost all TOI stars, thereby contributing in defining criteria for
follow-up strategy itself, and the study of star-planet interactions,
surface dynamic of host stars, and habitability conditions in planets,
among other aspects. In this context, a living catalog is maintained
on the Filtergraph visualization portal at
http://filtergraph.com/tess_rotation_tois
Description:
The Transiting Exoplanet Survey Satellite (TESS) mission
(Ricker+ 2015JATIS...1a4003R 2015JATIS...1a4003R), launched into space in 2018 April,
provides photometric data at two different cadences (2 and 30 minutes)
with a time baseline from 27d to 351d, depending on the sector
overlap. While the 2min cadence data, also known as target pixel (TP)
files, are available for a subset of targets, the entire
charge-coupled devices (CCDs), called full-frame images (FFIs), are
binned onboard every 30min and are available online.
In 2yr, the mission plans to cover almost the entire sky by monitoring
26 segments (or sectors) of 90°x24° each 27 days long.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 93 131 Catalog of TOIs with unambiguous rotation
periods from our analysis
table2.dat 91 32 List of the 32 TOIs with dubious rotation
periods from our analysis
table3.dat 67 109 List of the 109 TOIs with ambiguous variability
behavior from our analysis
table4.dat 85 714 List of the 714 TOIs with noisy LCs in our analysis
table5.dat 56 10 TOI stars with unambiguous pulsation periodicity
from our analysis
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See also:
IV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)
J/A+A/417/557 : Rotation & variability of PMS Stars in NGC 2264 (Lamm, 2004)
J/ApJ/733/L9 : Stellar rotation for 71 NGC 6811 members (Meibom+, 2011)
J/MNRAS/432/1203 : Rotation periods of M-dwarf stars (McQuillan+, 2013)
J/A+A/555/A63 : Semi-sinusoidal variability with CoRoT (de Medeiros+, 2013)
J/A+A/557/L10 : Rotation periods of 12000 Kepler stars (Nielsen+, 2013)
J/ApJ/775/L11 : Stellar rotation periods for KOIs (McQuillan+, 2013)
J/ApJ/776/67 : Rotational tracks (van Saders+, 2013)
J/A+A/560/A4 : Rotation periods of active Kepler stars (Reinhold+, 2013)
J/MNRAS/436/1883 : Properties of KOI host stars (Walkowicz+, 2013)
J/ApJS/211/24 : Rotation periods of Kepler MS stars (McQuillan+, 2014)
J/ApJ/787/47 : 106 Kepler ultra-short-period planets (Sanchis-Ojeda+, 2014)
J/ApJ/799/163 : Chandra observations of solar analogs (Miller+, 2015)
J/ApJ/803/69 : Kepler host stars rotation periods (Paz-Chinchon+, 2015)
J/ApJ/821/93 : Rotation & Galactic kinematics of mid M dwarfs (Newton+, 2016)
J/AJ/153/93 : MOST photometry of Proxima (Kipping+, 2017)
J/AJ/155/39 : Variability of TIC sources with KELT (Oelkers+, 2018)
J/AJ/156/217 : Stellar properties for M dwarfs in MEarth-South (Newton+, 2018)
J/ApJS/244/21 : Surface rotation & activity of Kepler stars. I. (Santos+, 2019)
J/AJ/159/60 : 8695 flares from 1228 stars in TESS (Gunther+, 2020)
J/A+A/635/A43 : Stellar rotation periods from K2 Camp. 0-18 (Reinhold+, 2020)
J/AJ/159/194 : Planets around MS stars in GALEX UV (Viswanath+, 2020)
http://tess.mit.edu/toi-releases/ : TOI release portal
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 I9 --- TIC TIC ID (G1)
11- 14 I4 K Teff [2808/9898]? Effective temperature (G1)
16- 20 F5.3 [cm/s2] logg [3.47/5.21]? Surface gravity, log (G1)
22- 28 F7.3 d Porb1 [0.29/216.25]? Orbital period 1 (G1)
30- 35 F6.3 d Porb2 ? Orbital period 2 (G1)
37- 42 F6.3 d Porb3 [26.322]? Orbital period 3 (G1)
44- 49 F6.3 d Prot [0.32/13.22] Rotation period
51- 55 F5.3 d e_Prot [0.004/1.9] Error in the rotation period
57- 59 I3 d tSPAN [14/285] Effective time span
61- 65 F5.1 --- Ncyc [2.5/177.5] Effective number of cycles
67- 93 A27 --- Sectors TESS observation sectors (G1)
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Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 I9 --- TIC TIC ID (G1)
11- 14 I4 K Teff [3703/6149] Effective temperature (G1)
16- 20 F5.3 [cm/s2] logg [3.26/4.77]? Surface gravity, log (G1)
22- 27 F6.3 d Porb1 [0.49/40.16]? Orbital period 1 (G1)
29- 34 F6.3 d Porb2 [51.705]? Orbital period 2 (G1)
36- 41 F6.3 d Porb3 [53.746]? Orbital period 3 (G1)
43- 47 F5.2 d Prot1 [2.78/11.28] Rotation period 1
49- 53 F5.2 d Prot2 ? Rotation period 2
55- 58 F4.2 d Prot3 [8.69]? Rotation period 3
60 A1 --- Flag [a] Flag (1)
62- 64 I3 d tSPAN [18/240] Effective time span
66- 69 F4.1 --- Ncyc [1.4/28] Effective number of cycles
71- 91 A21 --- Sectors TESS observation sectors (G1)
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Note (1): Flag as follows:
a = stars with less than three observed cycles that show non-persistent
pattern along their LCs.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 I10 --- TIC TIC ID (G1)
12- 15 I4 K Teff [3009/9435]? Effective temperature (G1)
17- 21 F5.3 [cm/s2] logg [3.26/5.11]? Surface gravity, log (G1)
23- 28 F6.3 d Porb1 [0.32/71.42] Orbital period 1 (G1)
30- 35 F6.3 d Porb2 ? Orbital period 2 (G1)
37- 39 I3 d tSPAN [17/276] Effective time span
41- 67 A27 --- Sectors TESS observation sectors (G1)
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Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 I10 --- TIC TIC ID (G1)
12- 16 I5 K Teff [2940/50000] Effective temperature (G1)
18- 22 F5.3 [cm/s2] logg [2.36/5.97]? Surface gravity, log (G1)
24- 30 F7.3 d Porb1 [0.26/183.46]? Orbital period 1 (G1)
32- 37 F6.3 d Porb2 ? Orbital period 2 (G1)
39- 44 F6.3 d Porb3 ? Orbital period 3 (G1)
46- 51 F6.3 d Porb4 ? Orbital period 4 (G1)
53- 55 I3 d tSPAN [15/290] Effective time span
57- 85 A29 --- Sectors TESS observation sectors (G1)
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 I9 --- TIC TIC ID (G1)
11- 14 I4 K Teff [5760/8599] Effective temperature (G1)
16- 20 F5.3 [cm/s2] logg [4.11/4.44]? Surface gravity, log (G1)
22- 26 F5.3 d Porb [0.78/9.69] Orbital period (G1)
28- 32 F5.3 d Ppul [0.049/3] Pulsation period
34- 38 F5.3 d e_Ppul [0.001/0.13] Ppul uncertainty
40- 41 I2 d tSPAN [17/61] Effective time span
43- 47 F5.1 --- Ncyc [11.9/475.6] Effective number of cycles
49- 56 A8 --- Sectors TESS observation sectors (G1)
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Global notes:
Note (G1): Taken from the TOI Release Portal
(http://tess.mit.edu/toi-releases/).
Values for logg and Porb are rounded to 3 decimals digits.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 09-Nov-2020