TESS-Gaia Light Curve: a PSF-based TESS FFI light curve product

Abstract

The Transiting Exoplanet Survey Satellite (TESS) is continuing its second extended mission after 55 sectors of observations. TESS publishes full-frame images (FFI) at a cadence of 1800, 600, or 200 seconds, allowing light curves to be extracted for stars beyond a limited number of pre-selected stars. Simulations show that thousands of exoplanets, eclipsing binaries, variable stars, and other astrophysical transients can be found in these FFI light curves. To obtain high-precision light curves, we forward model the FFI with the effective point spread function to remove contamination from nearby stars. We adopt star positions and magnitudes from Gaia DR3 as priors. The resulting light curves, called TESS-Gaia Light Curves (TGLC), show a photometric precision closely tracking the pre-launch prediction of the noise level. TGLC's photometric precision reaches <~2% at 16th TESS magnitude even in crowded fields. We publish TGLC Aperture and PSF light curves for stars down to 16th TESS magnitude through the Mikulski Archive for Space Telescopes (MAST) for all available sectors and will continue to deliver future light curves via DOI: 10.17909/610m-9474. The open-source package tglc is publicly available to enable any user to produce customized light curves.

arXiv comment23 pages, 13 figures, 4 tables, AJ accepted. Light curves are available at https://archive.stsci.edu/doi/resolve/resolve.html?doi=10.17909/610m-9474 tglc package is pip-installable and available at https://github.com/TeHanHunter/TESS_Gaia_Light_Curve

References in corpus (43)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• Astropy: A Community Python Package for Astronomy
• The NumPy array: a structure for efficient numerical computation
• The Transiting Exoplanet Survey Satellite
• Binary companions of evolved stars in APOGEE DR14: Search method and catalog of ~5,000 companions
• The Zwicky Transient Facility: System Overview, Performance, and First Results
• Fast and scalable Gaussian process modeling with applications to astronomical time series
• The Revised TESS Input Catalog and Candidate Target List
• Efficient, uninformative sampling of limb darkening coefficients for two-parameter laws
• astroquery: An Astronomical Web-Querying Package in Python
• The Transiting Exoplanet Survey Satellite: Simulations of planet detections and astrophysical false positives
• Toward High-Precision Astrometry with WFPC2. I. Deriving an Accurate PSF
• STARRY: Analytic Occultation Light Curves
• Parametrizing the exoplanet eccentricity distribution with the Beta distribution
• A Revised Exoplanet Yield from the Transiting Exoplanet Survey Satellite (TESS)
• Wotan: Comprehensive time-series de-trending in Python
• eleanor: An open-source tool for extracting light curves from the TESS Full-Frame Images
• exoplanet: Gradient-based probabilistic inference for exoplanet data & other astronomical time series
• TESS Discovery of a Transiting Super-Earth in the $\pi$ Mensae System
• TESS Eclipsing Binary Stars. I. Short cadence observations of 4584 eclipsing binaries in Sectors 1-26
• Pulsating white dwarfs: new insights
• TESS Discovery of an ultra-short-period planet around the nearby M dwarf LHS 3844
• Analytic Planetary Transit Light Curves and Derivatives for Stars with Polynomial Limb Darkening
• The asteroseismic potential of TESS: exoplanet-host stars
• The first view of $\delta$ Scuti and $\gamma$ Doradus stars with the TESS mission
• Cluster Difference Imaging Photometric Survey. I. Light Curves of Stars in Open Clusters from TESS Sectors 6 & 7
• A PSF-based Approach to TESS High quality data Of Stellar clusters (PATHOS) -- I. Search for exoplanets and variable stars in the field of 47 Tuc
• ASASSN-18tb: A Most Unusual Type Ia Supernova Observed by TESS and SALT
• Early Time Light Curves of Type Ia Supernovae Observed with TESS
• Complex Rotational Modulation of Rapidly Rotating M-Stars Observed with TESS
• TIC 168789840: A Sextuply-Eclipsing Sextuple Star System
• TESS observations of Cepheid stars: first light results
• First results on RR Lyrae stars with the TESS space telescope: untangling the connections between mode content, colors and distances
• The complex variability of blazars: Time-scales and periodicity analysis in S4 0954+65
• TOI-530b: A giant planet transiting an M dwarf detected by TESS
• The Compact Triply Eclipsing Triple Star TIC 209409435 Discovered with TESS
• TOI-674b: an oasis in the desert of exo-Neptunes transiting a nearby M dwarf
• The White Dwarf Binary Pathways Survey VI: two close post common envelope binaries with TESS light curves
• TOI-519 b: a short-period substellar object around an M dwarf validated using multicolour photometry and phase curve analysis
• A search for variable subdwarf B stars in TESS Full Frame Images -- I. Variable objects in the southern ecliptic hemisphere
• TACOS: TESS AM~CVn Outbursts Survey
• A search for variable subdwarf B stars in TESS Full Frame Images II. Variable objects in the northern ecliptic hemisphere
• A Step towards Unveiling the Nature of Three Cataclysmic Variables: LS Cam, V902 Mon, and SWIFT J0746.3-1608

Cited by in corpus (17)

• Confronting sparse Gaia DR3 photometry with TESS for a sample of around 60,000 OBAF-type pulsators
• Searching for Giant Exoplanets around M-dwarf Stars (GEMS) I: Survey Motivation
• Hundreds of TESS exoplanets might be larger than we thought
• TOI-5344 b: A Saturn-like planet orbiting a super-Solar metallicity M0 dwarf
• The unusual M-dwarf Warm Jupiter TOI-1899~b: Refinement of orbital and planetary parameters
• Testing the wavelength dependence of oscillations and granulation in red giants using Kepler and TESS
• High mass function ellipsoidal variables in the Gaia Focused Product Release: searching for black hole candidates in the binary zoo
• GEMS JWST: Transmission spectroscopy of TOI-5205b reveals significant stellar contamination and a metal-poor atmosphere
• Discovery of Dipolar Chromospheres in Two White Dwarfs
• An upper limit on the frequency of short-period black hole companions to Sun-like stars
• Automated all-sky detection of γ Doradus / δ Scuti hybrids in TESS data from positive unlabelled (PU) learning
• MONOS: Multiplicity Of Northern O-type Spectroscopic systems. III. New orbits and Gaia TESS analysis for 10 SB2E systems
• ExoVetter and a TESS Exoplanet Transit Search of Kepler Stars as Ground Truth
• Binarity at LOw Metallicity (BLOeM): massive star variability revealed using a novel software tool for point-spread function fitting of TESS images
• Hidden oscillations in plain sight: identification of seismically unresolved red-giant asteroseismic binary candidates
• Searching for GEMS: Three warm Saturns and a super-Jupiter orbiting four early M-dwarfs
• Searching for GEMS: TOI-5916 b & TOI-6158 b are two Saturn-density planets orbiting M2 dwarfs