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相关论文: AutoRegressive Planet Search: Application to the K…

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Over 30% of the ~4000 known exoplanets to date have been discovered using 'validation', where the statistical likelihood of a transit arising from a false positive (FP), non-planetary scenario is calculated. For the large majority of these…

地球与行星天体物理 · 物理学 2021-05-26 David J. Armstrong , Jevgenij Gamper , Theodoros Damoulas

We present a method that utilizes autocorrelation functions from long-term precision broadband differential light curves to estimate the average lifetimes of starspot groups for two large sample of Kepler stars: stars with and without…

太阳与恒星天体物理 · 物理学 2022-01-19 Gibor Basri , Tristan Streichenberger , Connor McWard , Lawrence Edmond , Joanne Tan , Minjoo Lee , Trey Melton

The determination of exoplanet properties and occurrence rates using Kepler data critically depends on our knowledge of the fundamental properties (such as temperature, radius and mass) of the observed stars. We present revised stellar…

The Kepler telescope has discovered over 4,000 planets (candidates) by searching ? 200,000 stars over a wide range of distance (order of kpc) in our Galaxy. Characterizing the kinematic properties (e.g., Galactic component membership and…

Kepler-13b (KOI-13.01) is a most intriguing exoplanet system due to the rapid precession rate, exhibiting several exotic phenomena. We analyzed $Kepler$ Short Cadence data up to Quarter 14, with a total time-span of 928 days, to reveal…

太阳与恒星天体物理 · 物理学 2015-06-17 Gy. M. Szabó , A. E. Simon , L. L. Kiss

The Kepler spacecraft has collected data of high photometric precision and cadence almost continuously since operations began on 2009 May 2. Primarily designed to detect planetary transits and asteroseismological signals from solar-like…

天体物理仪器与方法 · 物理学 2015-06-05 K. Kinemuchi , T. Barclay , M. Fanelli , J. Pepper , M. Still , Steve B. Howell

The Kepler K2 mission now makes it possible to find and study a wider variety of eclipsing binary stars than has been possible to-date, particularly long-period systems with narrow eclipses. Our aim is to characterise eclipsing binary stars…

太阳与恒星天体物理 · 物理学 2018-08-15 P. F. L. Maxted , R. J. Hutcheon

We present the results of the SuperLupus Survey for transiting hot Jupiter planets, which monitored a single Galactic disk field spanning 0.66 sq. deg for 108 nights over three years. Ten candidates were detected: one is a transiting…

地球与行星天体物理 · 物理学 2015-06-03 Daniel Bayliss , Penny Sackett

The Kepler Mission has provided unprecedented, nearly continuous photometric data of $\sim$200,000 objects in the $\sim$105 deg$^{2}$ field of view from the beginning of science operations in May of 2009 until the loss of the second…

We present a magnitude-limited set of lightcurves for stars observed over the TESS Extended Mission, as extracted from full-frame images (FFIs) by MIT's Quick-Look Pipeline (QLP). QLP uses multi-aperture photometry to produce lightcurves…

Deep learning techniques have been well explored in the transiting exoplanet field; however, previous work mainly focuses on classification and inspection. In this work, we develop a novel detection algorithm based on a well proven object…

地球与行星天体物理 · 物理学 2022-01-05 Kaiming Cui , Junjie Liu , Fabo Feng , Jifeng Liu

We have analysed 10 months of public data from the Kepler space mission to measure rotation periods of main-sequence stars with masses between 0.3 and 0.55 M_sun. To derive the rotational period we introduce the autocorrelation function and…

太阳与恒星天体物理 · 物理学 2013-04-30 Amy McQuillan , Suzanne Aigrain , Tsevi Mazeh

Transiting extrasolar planets constitute only a small fraction of the range of stellar systems found to display periodic, shallow dimmings in wide-field surveys employing small-aperture camera arrays. Here we present an efficient selection…

We investigate the role that planet detection order plays in the Kepler planet detection pipeline. The Kepler pipeline typically detects planets in order of descending signal strength (MES). We find that the detectability of transits…

地球与行星天体物理 · 物理学 2019-01-11 Jon K. Zink , Jessie L. Christiansen , Bradley M. S. Hansen

During the primary Kepler mission, between 2009 and 2013, about 150,000 pre-selected targets were observed with a 29.42 minute-long cadence. However, a survey of background stars that fall within the field of view (FOV) of the downloaded…

太阳与恒星天体物理 · 物理学 2021-07-12 John Bienias , Attila Bódi , Adrienn Forró , Tamás Hajdu , Róbert Szabó

The NASA Transiting Exoplanet Survey Satellite (TESS) is observing tens of millions of stars with time spans ranging from $\sim$ 27 days to about 1 year of continuous observations. This vast amount of data contains a wealth of information…

In this paper we describe a project we initiated to investigate individual pixels in the downloaded Kepler apertures in order to find objects in the background of the main targets with variable brightness. In the first paper of this series…

太阳与恒星天体物理 · 物理学 2022-05-25 Adrienn Forró , Róbert Szabó , Attila Bódi , Kornél Császár

We present a refined analysis of 15038 Kepler main sequence light curves to determine the stellar rotation periods. The initial period estimates come from an autocorrelation function, as has been done before. We then measure the duration of…

太阳与恒星天体物理 · 物理学 2023-06-06 Joanne Tan , Gibor Basri

We present new planet candidates identified in NASA Kepler quarter two public release data by volunteers engaged in the Planet Hunters citizen science project. The two candidates presented here survive checks for false-positives, including…

Context. The CARMENES spectrograph is surveying ~300 M dwarf stars in search for exoplanets. Among the target stars, spectroscopic binary systems have been discovered, which can be used to measure fundamental properties of stars. Aims.…

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