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This work is dedicated to a search for new pulsating hot subdwarfs in TESS photometric data which could have been missed in previous searches. By matching catalogues of hot subdwarfs with TESS targets and using luminosities from Gaia…

太阳与恒星天体物理 · 物理学 2022-07-13 J. Krzesinski , L. A. Balona

The Transiting Exoplanet Survey Satellite (TESS) is focusing on relatively bright stars and has found thousands of planet candidates. However, mainly because of the low spatial resolution of its cameras ($\approx$ 21 arcsec/pixel), TESS is…

Young associations in star forming regions are stellar systems that allow us to understand the mechanisms that characterise the stars in their early life and what happens around them. In particular, the analysis of the disks and of the…

太阳与恒星天体物理 · 物理学 2020-10-14 D. Nardiello

M-dwarf stars are the most favorable hosts for detecting small transiting planets, yet mid-to-late M-dwarfs that acquired sufficient TESS multi-sector coverage only through recent Cycle 6+ observations represent a newly accessible discovery…

地球与行星天体物理 · 物理学 2026-05-22 Yohann Tschudi

Context. We present our findings on 18 formerly known ZZ Ceti stars observed by the TESS space telescope in 120s cadence mode during the survey observation of the southern ecliptic hemisphere. Aims. We focus on the frequency analysis of the…

The Transiting Exoplanet Survey Satellite (TESS) is a wide-field all-sky survey mission designed to detect Earth-sized exoplanets. After over four years photometric surveys, data from sectors 1-57, including approximately 1,050,000 light…

太阳与恒星天体物理 · 物理学 2025-04-02 Li-Heng Wang , Kai Li , Xiang Gao , Ya-Ni Guo , Guo-You Sun

We present FluxCT V2.0, an updated web tool for identifying contaminating flux in Kepler and TESS target pixel files. FluxCT V2.0 focuses on enhancing functionality, user experience, and data processing capabilities. We resolved existing…

天体物理仪器与方法 · 物理学 2025-04-04 Zillin Dong , Jessica Schonhut-Stasik , Keivan G. Stassun

We report the delivery to the Mikulski Archive for Space Telescopes of target pixel and light curve files for up to 160,000 targets selected from full-frame images (FFI) for each TESS Northern hemisphere observing sector. The data include…

The rapidly oscillating chemically peculiar A-type (roAp) stars offer valuable insights into the internal physical processes of all stars, but their study is challenged by their rarity. The large-scale TESS surveys have allowed for the…

Although more than 5000 TESS Objects of Interest have been cataloged, no comprehensive survey of the flare rates of their host stars exists. We perform the first flare survey of all 2250 non-retired TOIs with 2 min cadence light curves to…

太阳与恒星天体物理 · 物理学 2022-03-14 Ward S. Howard

Stellar flares are abundant in space photometric light curves. As they are now available in large enough numbers, the statistical study of their overall temporal morphology is timely. We use light curves from the Transiting Exoplanet Survey…

太阳与恒星天体物理 · 物理学 2025-02-12 Bálint Seli , Krisztián Vida , Katalin Oláh , Anna Görgei , Szabolcs Soós , András Pál , Levente Kriskovics , Zsolt Kővári

We present a method for deriving a probabilistic estimate of the true source of a detected TESS transiting event. Our method relies on comparing the observed photometric centroid offset for the target star with models of the offset that…

地球与行星天体物理 · 物理学 2023-10-25 Andreas Hadjigeorghiou , David J. Armstrong

We perform a study of stellar flares for the 24,809 stars observed with 2 minute cadence during the first two months of the TESS mission. Flares may erode exoplanets' atmospheres and impact their habitability, but might also trigger the…

We report the discovery of three Transiting Exoplanet Survey Satellite Objects of Interest (TOI) with signatures of pulsation, observed in more than one sector. Our main goal is to explore how large is the variety of classical pulsators…

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…

天体物理仪器与方法 · 物理学 2025-11-12 Te Han , Timothy D. Brandt

In this work, we explore several ways to detect possible exocomet transits in the TESS (The Transiting Exoplanet Survey Satellite) light curves. The first one has been presented in our previous work, a machine learning approach based on the…

地球与行星天体物理 · 物理学 2026-02-04 D. V. Dobrycheva , I. V. Kulyk , D. R. Karakuts , M. Yu. Vasylenko , Ya. V. Pavlenko , O. S. Shubina , I. V. Luk'yanyk

NASA's all-sky survey mission, the Transiting Exoplanet Survey Satellite (TESS), is specifically engineered to detect exoplanets that transit bright stars. Thus far, TESS has successfully identified approximately 400 transiting exoplanets,…

TESS is finding transiting planet candidates around bright, nearby stars across the entire sky. The large field-of-view, however, results in low spatial resolution, therefore multiple stars contribute to almost every TESS light curve.…

地球与行星天体物理 · 物理学 2020-01-08 Carl Ziegler , Andrei Tokovinin , Cesar Briceno , James Mang , Nicholas Law , Andrew W. Mann

This is a revision. The revisions are minor. The new version of the catalog should be used in preference to the old. The most serious error in the older version was that $\theta_diff$ was incorrect, being sometimes far too large, for Reiz…

天体物理学 · 物理学 2015-06-24 Carl Heiles