J/AJ/167/203 DTARPS. II. 462 new TESS candidates (Melton+, 2024)
DIAmante TESS AutoRegressive Planet Search (DTARPS).
II. Hundreds of new TESS candidate exoplanets.
Melton E.J., Feigelson E.D., Montalto M., Caceres G.A., Rosenswie A.W.,
Abelson C.S.
<Astron. J., 167, 203 (2024)>
=2024AJ....167..203M 2024AJ....167..203M
ADC_Keywords: Exoplanets; Optical; Stars, diameters; Stars, masses;
Effective temperatures
Keywords: Exoplanet catalogs ; Exoplanet detection methods ; Light curve
classification ; Period search ; Time domain astronomy ;
Transits
Abstract:
The DIAmante TESS AutoRegressive Planet Search for the southern
ecliptic hemisphere (DTARPS-S) project seeks to identify photometric
transiting planets from 976814 southern hemisphere stars observed in
Year 1 of the TESS mission. This paper follows the methodology
developed by Melton+ (Paper I, 2024AJ....167..202M 2024AJ....167..202M) using light curves
extracted and preprocessed by the DIAmante project. PaperI emerged
with a list of 7377 light curves with statistical properties
characteristic of transiting planets but dominated by false alarms and
false positives. Here a multistage vetting procedure is applied
including: centroid motion and crowding metrics, false alarm and false
positive reduction, photometric binary elimination, and ephemeris
match removal. The vetting produces a catalog of 462 DTARPS-S
candidates across the southern ecliptic hemisphere and 310 objects in
a spatially incomplete Galactic plane list. 58% were not previously
identified as transiting systems. Candidates are flagged for possible
blending from nearby stars based on Zwicky Transient Facility data and
for possible radial velocity variations based on Gaia satellite data.
Orbital periods and planetary radii are refined using astrophysical
modeling; the resulting parameters closely match published values for
confirmed planets. The DTARPS-S population and astrophysical
properties are discussed in Paper III (Metlon+ 2024, AJ submitted).
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 175 462 DIAmante TESS AutoRegressive Planet Search for the
southern ecliptic hemisphere (DTARPS-S) candidates
catalog
table4.dat 167 310 DTARPS-S Galactic plane list
--------------------------------------------------------------------------------
See also:
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
IV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)
IV/39 : TESS Input Catalog version 8.2 (TIC v8.2) (Paegert+, 2021)
J/AJ/141/83 : Kepler Mission. I. Eclipsing binaries in DR1 (Prsa+, 2011)
J/MNRAS/424/11 : Rotation of field stars from CoRoT data (Affer+, 2012)
J/A+A/543/A125 : Spectral types of CoRoT stars (Guenther+, 2012)
J/AcA/62/67 : ASAS photometry of ROSAT sources (Kiraga, 2012)
J/ApJS/224/12 : Kepler planetary candidates. VII. 48-month (Coughlin+, 2016)
J/ApJ/819/19 : Equivalent widths of WASP-94A and WASP-94B (Teske+, 2016)
J/MNRAS/472/675 : Wide binaries in Tycho-Gaia search method (Andrews+, 2017)
J/A+A/616/A145 : GTC transit light curves of WASP-127b (Chen+, 2018)
J/AJ/156/234 : KELT transit false positive cat for TESS (Collins+, 2018)
J/MNRAS/481/3244 : Chemo-kinematics from MARVELS (Grieves+, 2018)
J/ApJ/874/L8 : The TESS Habitable Zone Star Catalog (Kaltenegger+, 2019)
J/AJ/157/124 : DAVE. I. Benchmarking K2 vetting tools (Kostov+, 2019)
J/ApJS/244/11 : Planet candidates and EBs in K2 campaigns 0-8 (Kruse+, 2019)
J/MNRAS/482/301 : WASP-147b, 160Bb, 164b, and 165b phot. and RV (Lendl+, 2019)
J/MNRAS/488/4905 : SuperWASP transit false positive catalog (Schanche+, 2019)
J/A+A/625/A150 : 10 very-low-mass stars photometry (von Boetticher+, 2019)
J/AJ/158/25 : Automated triage and vetting of TESS candidates (Yu+, 2019)
J/MNRAS/498/1726 : Transiting planets in TESS (Montalto+, 2020)
J/AJ/161/24 : TRICERATOPS predictions for 384 TOIs (Giacalone+, 2021)
J/AJ/161/273 : 181 new planet candidates with TESS (Olmschenk+, 2021)
J/ApJS/258/16 : TESS Eclipsing Binary stars. I. Sectors 1-26 (Prsa+, 2022)
J/ApJS/265/1 : TESS Grand Unified Hot Jupiter Surveys. II. (Yee+, 2023)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- DTARPS [1/462] DIAmante TESS Autoregressive Planet
Search identifier
5- 5 I1 --- Disp [1/2] DTARPS disposition (1)
7- 15 I9 --- TIC [17361/738065944] TESS Input Catalog number
17- 20 I4 --- TOI ? TESS Object of Interest number, ExoFOP-TESS
(10.26134/ExoFOP3), Version: 2022-03-15
22- 24 A3 --- NEA-disp Disposition, NASA Exoplanet Archive (2)
26- 26 A1 --- DIAm [T/F] Indicator DIAmante planet candidate (3)
28- 36 F9.5 deg RAdeg [0/360] Right Ascension, decimal degrees,
Gaia DR2 (ICRS) at Ep=2015.5
38- 46 F9.5 deg DEdeg [-86/17] Declination, decimal degrees,
Gaia DR2 (ICRS) at Ep=2015.5
48- 51 F4.1 mag Tmag [6.8/14.4] TESS band magnitude
53- 56 I4 K Teff [3375/6776] Stellar effective temperature,
Gaia DR2
58- 61 F4.2 Rsun Rstar [0.37/2.32] Stellar radius, Gaia DR2
63- 66 F4.2 Msun Mstar [0.36/1.45] Stellar mass, Gaia DR2
68- 70 I3 pc Dist [46/754] Stellar distance, Gaia DR2
72- 76 I5 --- Num-lc [590/14203] Number of observations in TESS
FFI lightcurve
78- 83 F6.4 --- IQR-lc [0.0001/0.0062] Interquartile range in
lightcurve
85- 88 F4.1 [-] ProbLB-lc [-6/0] Log probability of autocorrelation in
lightcurve, Ljung-Box test
90- 95 F6.4 --- IQR-AR [0.0001/0.0084] Interquartile range in ARIMA
residuals
97-100 F4.1 [-] ProbLB-AR [-6/0] Log probability of autocorrelation in
ARIMA residuals, Ljung-Box test
102-105 I4 --- TCF-SNR [10/1136] Signal-to-noise ratio of TCF
periodogram peak
107-114 F8.5 d Period [0.2/27.21] Period of transit (4)
116-122 F7.5 d e_Period [0/0.3]? Error of period
124-129 F6.4 --- Depth [0.0001/0.1] Depth of transit (4)
131-136 F6.4 --- e_Depth [0.0001/0.014]? Error of depth
138-141 F4.1 Rgeo Radius-pl [1.5/35.1] Planet radius (in Earth radii) (4)
143-145 F3.1 Rgeo e_Radius-pl [0.2/5.9]? Error of planet radius
(in Earth radii)
147-154 F8.3 d T0 [1325/1661] Time of first transit,
BJD-2457000.0 (4)
156-160 F5.3 d e_T0 [0/1.001]? Error of time first transit
162-164 F3.1 --- b [0.1/1]? Impact parameter
166-168 F3.1 --- e_b [0/0.4]? Error of impact parameter
170-173 F4.2 --- ProbRF [0.3/1] Probability of candidate planet
from Random Forest classifier
175-175 A1 --- Notes [T/F] Indicator of note on individual object
--------------------------------------------------------------------------------
Note (1): DTARPS disposition as follows:
1 = passes all vetting tests (very high confidence);
2 = passes most vetting tests (high confidence).
Note (2): NEA Disposition (Planetary Systems Table (10.26133/NEA12),
Version: 2022-03-15) as follows:
APC = Ambiguous Planet Candidate (20 occurrences)
CP = Confirmed Planet (22 occurrences)
FP = False Positive (30 occurrences)
KP = Known Planet (60 occurrences)
PC = (139 occurrences)
Note (3): Identified as a Planet Candidate by Montalto+ 2020, J/MNRAS/498/1726
from the same TESS FFI dataset.
Note (4): Period, Depth, Planet Radius and T0 are from ARPS analysis if
their associated errors are missing. Otherwise they are from the
best-fit 'Exoplanet' model.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 I9 --- TIC [883943/782818615] TESS Input Catalog number
11- 14 I4 --- TOI ? TESS Object of Interest number,
ExoFOP-TESS (10.26134/ExoFOP3),
Version: 2022-03-15
16- 18 A3 --- NEA-disp Disposition, NASA Exoplanet Archive (1)
20- 20 A1 --- DIAm [T/F] Indicator DIAmante planet candidate (2)
22- 30 F9.5 deg RAdeg [29/352] Right Ascension, decimal degrees,
Gaia DR2 (ICRS) at Ep=2015.5
32- 40 F9.5 deg DEdeg [-26/18] Declination, decimal degrees,
Gaia DR2 (ICRS) at Ep=2015.5
42- 45 F4.1 mag Tmag [7.7/14.2] TESS band magnitude
47- 50 I4 K Teff [3518/6952] Stellar effective temperature,
Gaia DR2
52- 55 F4.2 Rsun Rstar [0.47/1.96] Stellar radius, Gaia DR2
57- 60 F4.2 Msun Mstar [0.51/1.52] Stellar mass, Gaia DR2
62- 64 I3 pc Dist [34/841] Stellar distance, Gaia DR2
66- 69 I4 --- Num-lc [590/2019] Number of observations in TESS
FFI lightcurve
71- 76 F6.4 --- IQR-lc [0.0001/0.007] Interquartile range in
lightcurve
78- 81 F4.1 [-] ProbLB-lc [-6/0] Log probability of autocorrelation in
lightcurve, Ljung-Box test
83- 88 F6.4 --- IQR-AR [0.0001/0.008] Interquartile range in ARIMA
residuals
90- 93 F4.1 [-] ProbLB-AR [-6/0] Log probability of autocorrelation in
ARIMA residuals, Ljung-Box test
95- 97 I3 --- TCF-SNR [6/316] Signal-to-noise ratio of TCF
periodogram peak
99-106 F8.5 d Period [0.2/16.1] Period of transit (3)
108-114 F7.5 d e_Period [0/0.04]? Error of period
116-121 F6.4 --- Depth [0.0003/0.05] Depth of transit (3)
123-128 F6.4 --- e_Depth [0.0001/0.011]? Error of depth
130-133 F4.1 Rgeo Radius-pl [1.7/41.9] Planet radius (in Earth radii) (3)
135-137 F3.1 Rgeo e_Radius-pl [0.1/9.6]? Error of planet radius (in Earth
radii)
139-146 F8.3 d T0 [1325.345/1663.099] Time of first transit,
BJD-2457000.0 (3)
148-152 F5.3 d e_T0 [0/0.023]? Error of time first transit
154-156 F3.1 --- b [0/1]? Impact parameter
158-160 F3.1 --- e_b [0/0.4]? Error of impact parameter
162-165 F4.2 --- ProbRF [0.3/0.99] Probability of candidate planet
from Random Forest classifier
167-167 A1 --- Notes [T/F] Indicator of note on individual object
--------------------------------------------------------------------------------
Note (1): NEA Disposition (Planetary Systems Table (10.26133/NEA12),
Version: 2022-03-15) as follows:
APC = Ambiguous Planet Candidate (4 occurrences)
CP = Confirmed Planet (2 occurrences)
FP = False Positive (6 occurrences)
KP = Known Planet (8 occurrences)
PC = (24 occurrences)
Note (2): Identified as a Planet Candidate by Montalto+ 2020, J/MNRAS/498/1726
from the same TESS FFI dataset.
Note (3): Period, Depth, Planet Radius and T0 are from ARPS analysis if
their associated errors are missing. Otherwise they are from the
best-fit 'Exoplanet' model.
--------------------------------------------------------------------------------
History:
From electronic version of the journal
References:
Melton et al. Paper I. 2024AJ....167..202M 2024AJ....167..202M
(End) Prepared by [AAS], Coralie Fix [CDS], 23-Aug-2024