Low-mass stars from the first two TESS sectors J/AJ/158/81 ivo://CDS.VizieR/J/AJ/158/81 doi:10.26093/cds/vizier.51580081 CDS Cloutier R. 2022-12-14T08:32:49Z 2019-10-14T14:22:07Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr photometry visible-astronomy infrared-photometry trigonometric-parallax stellar-distance stellar-radii effective-temperature stellar-masses exoplanets Continuous data releases throughout the Transiting Exoplanet Survey Satellite (TESS) primary mission will provide unique opportunities for the exoplanet community at large to contribute to maximizing TESS's scientific return via the discovery and validation of transiting planets. This paper introduces our independent pipeline for the detection of periodic transit events along with the results of its inaugural application to the recently released 2 minute light curves of low-mass stars from the first two TESS sectors. The stellar parameters within our sample are refined using precise parallax measurements from the Gaia DR2 (Cat. I/345), which reduce the number of low-mass stars in our sample relative to those listed in the TESS Input Catalog. In lieu of the follow-up observations required to confirm or refute the planetary nature of transit-like signals, a validation of transit-like events flagged by our pipeline is performed statistically. The resulting vetted catalog contains eight probable blended eclipsing binaries, eight known TOIs, plus seven new planet candidates (PCs) smaller than 4 Earth radii. This work demonstrates the ability of our pipeline to detect sub-Neptune-sized PCs, which to date represent some of the most attractive targets for future atmospheric characterization via transmission or thermal emission spectroscopy and for radial velocity efforts aimed at the completion of the TESS level one requirement to deliver 50 planets smaller than 4 Earth radii with measured masses. 2019AJ....158...81C https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/158/81 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003) I/345 : Gaia DR2 (Gaia Collaboration, 2018) J/ApJ/809/77 : Transiting Exoplanet Survey Satellite (TESS) (Sullivan+, 2015) J/ApJS/216/7 : Planets Around Low-Mass Stars (PALMS). IV. (Bowler+, 2015) J/AJ/155/180 : A catalog of cool dwarf targets for the TESS (Muirhead+, 2018) J/AJ/156/102 : The TESS Input Catalog and Candidate Target List J/ApJS/239/2 : Simulated exoplanets from TESS list of targets (Barclay+, 2018) J/AJ/157/113 : TESS M-dwarf exoplanetary systems (Ballard, 2019) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/158/81 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/158/81 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/158/81 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/158/81 https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/158/81 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/158/81 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/AJ/158/81/catalog (Stellar photometry (table 1) and parameters (table 2) for the 1599 TICs in our low mass stars) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/158/81/catalog? https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/158/81/catalog? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/158/81/catalog? 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8.650015785639275e-20 4.621782916333392e-19 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/158/81?format=ascii Optical Infrared default J/AJ/158/81/catalog Stellar photometry (table 1) and parameters (table 2) for the 1599 TICs in our low mass stars recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int TIC [2733611/471016669] TESS Input Catalog identifier meta.id;meta.main long Tmag [7.019/15.82] Apparent TESS magnitude mag phot.mag;em.opt float GBPmag [7.098/15.862] Apparent Gaia blue passband magnitude mag phot.mag;em.opt.B float e_GBPmag [0/0.065] Uncertainty in GBPmag mag stat.error;phot.mag float GRPmag [9.179/19.383] Apparent Gaia red passband magnitude mag phot.mag;em.opt.R float e_GRPmag [0/0.065] Uncertainty in GRPmag mag stat.error;phot.mag float Jmag [5.669/13.801] Apparent 2MASS J band magnitude mag phot.mag;em.IR.J float e_Jmag [0.017/0.056] Uncertainty in Jmag mag stat.error;phot.mag float Hmag [5.108/13.293] Apparent 2MASS H band magnitude mag phot.mag;em.IR.H float e_Hmag [0.017/0.069] Uncertainty in Hmag mag stat.error;phot.mag float Ksmag [4.8/12.914] Apparent 2MASS K_S_ band magnitude mag phot.mag;em.IR.K float e_Ksmag [0.015/0.051] Uncertainty in Ksmag mag stat.error;phot.mag float RAJ2000 Right Ascension in decimal degrees (J2000) deg pos.eq.ra;meta.main DEJ2000 Declination in decimal degrees (J2000) deg pos.eq.dec;meta.main plx [3.58/130.332] Gaia DR2 parallax mas pos.parallax.trig float e_plx [0.012/1.307] Uncertainty in plx mas stat.error;pos.parallax float Dist [7.673/279.33] Distance from plx pc pos.distance;pos.heliocentric float e_Dist [0.002/8.9] Uncertainty in Dist pc stat.error float KsMag [5.001/8.877] Absolute 2MASS K_S_ band magnitude mag phys.magAbs float Simbad Simbad column added by the CDS meta.ref.url char e_KsMag [0.016/0.165] Uncertainty in KsMag mag stat.error;phot.mag float R* [0.1506/0.6114] Stellar radius solRad phys.size.radius float e_R* [0.0045/0.0324] Uncertainty in R* solRad stat.error float Teff [2737/4042] Stellar effective temperature K phys.temperature.effective int e_Teff [49/70] Uncertainty in Teff K stat.error;phys.temperature.effective int M* [0.1192/0.6347] Stellar mass solMass phys.mass float e_M* [0.0015/0.0308] Uncertainty in M* solMass stat.error float log(g) [4.668/5.158] Log stellar surface gravity log(cm.s**-2) phys.gravity float e_log(g) [0.026/0.061] Uncertainty in log(g) log(cm.s**-2) stat.error float