Halo Photometry and Asteroseismology for 98 of the Brightest Stars Observed by TESS

Abstract

The Transiting Exoplanet Survey Satellite (TESS) mission has facilitated studies of asteroseismology, eclipsing binaries, and transits in many stars. However, the brightest stars saturate TESS, yet they are the most amenable to photon-hungry high-resolution studies and have long observational histories. In this work, we adapted the halo photometry used in $K$2 to extract light curves from the unsaturated halo pixels of the star's point spread function. We used this method to extract light curves for 98 of the brightest stars observed by TESS in Sectors 1-93. These bright stars include 15 red giants, five $\delta$ Scuti variables, eight stochastic low-frequency variables, eight eclipsing binaries, and 46 other variables. We measured ${\nu }_{\max }$ for 13 red giants using pyMON and $\Delta \nu$ for one of them, $\beta$ Gem (Pollux). For five of them, this represents the first time that oscillations were detected. We derived their stellar masses using the measured ${\nu }_{\max }$ and previous interferometric and radiometric angular diameters. We also discovered $\delta$ Scuti and $\gamma$ Doradus variability in $\alpha$ Cep, possible asteroseismic binary signatures in $\epsilon$ Car, and a new eclipsing binary, $\gamma$ And. Furthermore, we identified 18 stars in our sample that will be observed by the future PLAnetary Transits and Oscillations of stars (PLATO) mission, and 69 stars that have Stellar Observations Network Group (SONG) observations, including some simultaneous with TESS. The light curves are publicly available on the Mikulski Archive for Space Telescopes.

Accepted for publication in MNRAS

References in corpus (67)

• Array Programming with NumPy
• The Astropy Project: Sustaining and Growing a Community-oriented Open-source Project and the Latest Major Release (v5.0) of the Core Package
• Gaia Data Release 3: Summary of the content and survey properties
• The Transiting Exoplanet Survey Satellite
• The K2 Mission: Characterization and Early results
• astroquery: An Astronomical Web-Querying Package in Python
• Fundamental Parameters of 87 Stars from the Navy Precision Optical Interferometer
• Precise Radial Velocities of Giant Stars VII. Occurrence Rate of Giant Extrasolar Planets as a Function of Mass and Metallicity
• Testing the asteroseismic scaling relations for Red Giants with Eclipsing Binaries Observed by Kepler
• Low-frequency gravity waves in blue supergiants revealed by high-precision space photometry
• Confirmation of the Planet Hypothesis for the Long-period Radial Velocity Variations of Beta Geminorum
• The first view of $\delta$ Scuti and $\gamma$ Doradus stars with the TESS mission
• Oscillating K giants with the WIRE satellite: determination of their asteroseismic masses
• Very regular high-frequency pulsation modes in young intermediate-mass stars
• The Magnetic Fields at the Surface of Active Single G-K Giants
• Photometric detection of internal gravity waves in upper main-sequence stars. II. Combined TESS photometry and high-resolution spectroscopy
• First Results From The Hertzsprung Song Telescope: Asteroseismology Of The G5 Subgiant Star {\Mu}Her
• The role of turbulent pressure as a coherent pulsational driving mechanism: the case of the delta Scuti star HD 187547
• Diverse Variability of O and B Stars Revealed from 2-minute Cadence Light Curves in Sectors 1 and 2 of the TESS Mission: Selection of an Asteroseismic Sample
• Beyond the Kepler/K2 bright limit: variability in the seven brightest members of the Pleiades
• The all-sky PLATO input catalogue
• The BRITE Constellation nanosatellite mission: Testing, commissioning and operations
• Modelling Kepler Red Giants in Eclipsing Binaries:Calibrating the Mixing Length Parameter with Asteroseismology
• The PLATO field selection process I. Identification and content of the long-pointing fields
• Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era
• Asteroseismology of luminous red giants with Kepler I: Long Period Variables with radial and non-radial modes
• Spectroscopic and seismic analysis of red giants in eclipsing binaries discovered by Kepler
• A prescription for the asteroseismic surface correction
• Revisiting bright delta Scuti stars and their period-luminosity relation with TESS and Gaia DR3
• The CubeSpec space mission. I. Asteroseismology of massive stars from time series optical spectroscopy: science requirements and target list prioritisation
• TESS Cycle 1 observations of roAp stars with 2-min cadence data
• Asteroseismic masses of retired planet-hosting A-stars using SONG
• Precise radial velocities of giant stars. XII. Evidence against the proposed planet Aldebaran b
• The Discovery of Stellar Oscillations in the Planet Hosting Giant Star Beta Geminorum
• Automated extraction of oscillation parameters for Kepler observations of solar-type stars
• The PLATO field selection process. II. Characterization of LOPS2, the first long-pointing field
• Asteroseismology of the Hyades red giant and planet host epsilon Tauri
• A photometric study of Be stars located in the seismology fields of COROT
• Oscillations in Beta UMi - Observations with SMEI
• Delta Scuti Variables
• beta Cas: the first delta Scuti star with a dynamo magnetic field
• The variability of the BRITE-est Wolf-Rayet binary, ${\gamma }^2$ Velorum I. Photometric and spectroscopic evidence for colliding winds
• PlatoSim: An end-to-end PLATO camera simulator for modelling high-precision space-based photometry
• Pulsating B stars in the Scorpius-Centaurus Association with TESS
• CORALIE radial-velocity search for companions around evolved stars (CASCADES). I. Sample definition and first results: Three new planets orbiting giant stars
• Establishing the accuracy of asteroseismic mass and radius estimates of giant stars III. KIC4054905, an eclipsing binary with two 10 Gyr thick disk RGB stars
• Asteroseismic masses of four evolved planet-hosting stars using SONG and TESS: resolving the retired A-star mass controversy
• Angular Diameters and Fundamental Parameters of Forty-Four Stars from the Navy Precision Optical Interferometer
• KIC 7955301: a hierarchical triple system with eclipse timing variations and an oscillating red giant
• Properties of the Hyades, the eclipsing binary HD27130, and the oscillating red giant $\epsilon$ Tau
• Stellar masses from granulation and oscillations of 23 bright red giants observed by BRITE - Constellation
• Luminaries in the Sky: The TESS Legacy Sample of Bright Stars. I. Asteroseismic detections in naked-eye main-sequence and sub-giant solar-like oscillators
• Revisiting the Red-giant Branch Hosts KOI-3886 and $\iota$ Draconis. Detailed Asteroseismic Modeling and Consolidated Stellar Parameters
• BRITE photometry and STELLA spectroscopy of bright stars in Auriga: Rotation, pulsation, orbits, and eclipses
• Seismology of Altair with MOST
• Pollux: A weak dynamo-driven dipolar magnetic field and implications for its probable planet
• A study of the F-giant star $\theta$ Scorpii A: a post-merger rapid rotator?
• Thirty-Three New Stellar Angular Diameters from the NPOI, and Nearly 180 NPOI Diameters as an Ensemble
• Advancing accuracy in age determinations of old-disk stars using an oscillating red giant in an eclipsing binary
• Solar-like oscillations in $\gamma$ Cephei A as seen through SONG and TESS
• Asteroseismology of the G8 subgiant beta Aquilae with SONG-Tenerife, SONG-Australia and TESS
• Precise radial velocities of giant stars -- XVII. Distinguishing planets from intrinsically induced radial velocity signals in evolved stars
• Vintage NPOI: New and Updated Angular Diameters for 145 Stars
• The highest mass Kepler red giants -- II. Spectroscopic parameters, the amplitude-activity relation, and unexpected halo orbits
• The BRITE-SONG of Aldebaran -- Stellar Music in three voices
• The Transiting Exoplanet Survey Satellite
• Variability of Galactic blue supergiants observed with TESS

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