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Showing 1 to 20 of 102 for “"TESS"”.
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Eclipsing Cataclysmic Variables With TESS
… 2018, the Transiting Exoplanet Survey Satellite (TESS) has delivered unprecedented, long-term photometric coverage for numerous CVs, enabling continuous monitoring across multiple sectors. The purpose of this work is to investigate the behavior of the accretion disks in 17 eclipsing CVs, spanning …
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Étude des étoiles chimiquement particulières observées avec TESS
Le Transiting Exoplanet Survey Satellite (TESS) vise à détecter des exoplanètes dans le voisinage solaire en étudiant la luminosité stellaire à l'aide d'un photomètre. Avec le premier cycle du survol de l'hémisphère sud par rapport à l'écliptique, nous nous sommes concentrés sur l'étude des étoiles …
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SALT and TESS monitoring of central stars of planetary nebulae
… over 3 years and The Exoplanet Survey Satellite (TESS) was used to obtain photometric data for the objects. The medium resolution (MR) mode (R ≈ 40000) was chosen and 58, 60, and 35 spectra were collected for Hen3-1333, Hen2-113 and Hen2-47, respectively, with an average S/N of 40 at 4495 Å. The …
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CCD photometric precision for the Transiting Exoplanet Survey Satellite (TESS)
… to the equipment to be used on board the TESS all-sky space observatory. We adjust physical variables in such a way as to minimize this noise and achieve a photometric precision limited in large part by shot noise. Ultimately, the goal is to demonstrate in the lab, by analyzing photon data …
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From PDAS to T-TESS : a single descriptive case study of public-school principals and their experiences with the practicality of implementing T-TESS as intended.
… Texas Teacher Evaluation and Support System (T-TESS) compared to the number of appraisers on a campus. This case study also described the historical evolution of evaluation instruments in Texas, the rationale for changing evaluation instruments, and, through the lens of three principals, their …
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Discovery and Characterisation of Long-Period Exoplanets with TESS and CHEOPS
… the Transiting Exoplanet Survey Satellite (TESS) is particularly susceptible to this detection bias. To increase the number of long-period planets, I use TESS ‘duotransits’ — planet candidates with two observed transits separated by a large gap, typically two years. From the two …
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Elucidating the evolution histories of giant planets with K2 and TESS
Giant planets play a fundamental role in shaping the architecture of planetary systems and the formation and evolution of smaller planets. Over the last few decades, over 1000 giant planets have been discovered outside the Solar System, yet many open questions remain about their formation and …
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Identifying and Analyzing Multi-Star Systems Among TESS Planetary Candidates Using Gaia
… to parse databases such as those constructed by TESS and Gaia to bridge the gap between exoplanets and stellar companions. Data can then be analyzed for trends in these multi-star exoplanet systems and in juxtaposition to their single-star counterparts. This research was able to automate the data …
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Simulations and technology development for time-domain astronomy : TESS and InGaAs detectors
… upcoming Transiting Exoplanet Survey Satellite (TESS) mission will complement Kepler by identifying the brightest transiting exoplanet systems on the sky. These planets will offer the most insight into their radius, mass, and composition. At approximately the same time that TESS launches, the …
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"Thomas Hardy: Use Of History In ""the Mayor Of Casterbridge"" And ""tess Ofthe D'urbervilles."""
Made available in DSpace on 2014-12-10T19:35:44Z (GMT). No. of bitstreams: 1 7414547.pdf: 8970679 bytes, checksum: 99692163bd451323717b837fdc10b270 (MD5) Previous issue date: 1974
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Transition-Edge Sensors for Electron Spectroscopy
Transition-edge sensors (TESs) are highly-sensitive detectors capable of both radiative flux and single photon measurements. TESs have found a number of applications including astronomical photon measurements, neutrino mass measurements and in the search for dark matter. Despite this versatility, …
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Elementary Campus Principal Perceptions of the Standards-Based Teacher Evaluation System in Texas
… Texas Teacher Evaluation and Support System (T-TESS). A purposeful sample of new and experienced elementary school principals representing 64 T-TESS pilot districts provided responses to the Texas Evaluator Perceptions of T-TESS Survey to assess the value, goal setting and professional …
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Modal Optical Studies of Multi-Moded Ultra-Low-Noise Detectors in Far-Infrared
… for the ultra-low-noise Transition Edge Sensors (TESs) being proposed for use on the SAFARI instrument on the cooled aperture infrared space telescope SPICA (34 - 210 μm). The optical behaviour of the SAFARI system is described in terms of the optical modes of the telescope, as distinct from the …
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Microscopic physics of transition edge sensors
Transition Edge Sensors (TESs) are ultra-sensitive superconducting detectors having a wide range of applications, from quantum cryptography to x-ray spectroscopy. Models of TESs often employ a circuit theory approach, taking TES parameters such as the temperature and current dependent resistance as …
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Time-Domain Astrophysics with the Transiting Exoplanet Survey Satellite
The Transiting Exoplanet Survey Satellite (TESS) is conducting an all-sky survey with the primary aim of detecting planets orbiting nearby stars. However, its large field of view and 200 s imaging cadence are useful for other science cases, ranging from stellar astrophysics to transient science. …
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Classification of Variable Stars using Convolutional Neural Network
… from Transiting Exoplanet Survey Satellite (TESS). As astronomical data is becoming increasingly complex, and as advanced missions deploy sophisticated instruments for data collection, both the quality and quantity of the data are improving at a rapid pace. This has created an urgent need to …
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A prototype climate information system
… Navy's Tactical Environmental Support System (TESS). The CIS reduces the time and effort required to locate, ingest and analyze climatic data. The CIS remedies accessibility problems of existing climatologies by using a Data Base Management System (DBMS) to manage on-line data sets. The CIS …
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