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Related papers: Estimating Planetary Mass with Deep Learning

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Over the past decade, the study of extrasolar planets has evolved rapidly from plain detection and identification to comprehensive categorization and characterization of exoplanet systems and their atmospheres. Atmospheric retrieval, the…

The satellite COROT will search for close-in exo-planets around a few thousand stars using the transit search method. The COROT mission holds the promise of detecting numerous exo-planets. Together with radial velocity follow-up…

Astrophysics · Physics 2009-09-29 C. Broeg

Precise radial velocity (RV) measurements are a crucial tool for exoplanet discovery and characterization. Today, the majority of these measurements are derived from Echelle spectra in the optical wavelength region using cross-correlation…

Machine learning methods and uncertainty quantification have been gaining interest throughout the last several years in low-energy nuclear physics. In particular, Gaussian processes and Bayesian Neural Networks have increasingly been…

Nuclear Theory · Physics 2022-07-27 A. E. Lovell , A. T. Mohan , T. M. Sprouse , M. R. Mumpower

Astrometric measurements of stellar systems are becoming significantly more precise and common, with many ground and space-based instruments and missions approaching 1 microarcsecond precision. We examine the multi-wavelength astrometric…

Solar and Stellar Astrophysics · Physics 2015-06-04 Jeffrey L. Coughlin , Mercedes Lopez-Morales

In this era of exoplanet characterisation with JWST, the need for a fast implementation of classical forward models to understand the chemical and physical processes in exoplanet atmospheres is more important than ever. Notably, the…

Earth and Planetary Astrophysics · Physics 2023-06-28 Julius L. A. M. Hendrix , Amy J. Louca , Yamila Miguel

For much of human history we have wondered how our solar system formed, and whether there are any other planets like ours around other stars. Only in the last 20 years have we had direct evidence for the existence of exoplanets, with the…

Solar and Stellar Astrophysics · Physics 2013-08-26 Jeffrey L. Coughlin

We investigate potential biases in the measurements of exoplanet orbital parameters obtained from radial velocity observations for single-planet systems. We create a mock catalog of radial velocity data, choosing input planet masses,…

Earth and Planetary Astrophysics · Physics 2015-05-19 Nadia L. Zakamska , Margaret Pan , Eric B. Ford

Exoplanets which are detected using the radial velocity technique have a well-known ambiguity of their true mass, caused by the unknown inclination of the planetary orbit with respect to the plane of the sky. Constraints on the inclination…

Earth and Planetary Astrophysics · Physics 2019-07-16 Stephen R. Kane , Dawn M. Gelino

We present a procedure for calculating expected exoplanet imaging yields, which explicitly separates the effects of instrument performance from assumptions of planet distributions. This `depth of search' approach allows for fast…

Instrumentation and Methods for Astrophysics · Physics 2017-07-13 Daniel Garrett , Dmitry Savransky , Bruce Macintosh

Thanks to the detections of more than 3000 exoplanets these last 20 years, statistical studies have already highlighted some properties in the distribution of the planet parameters. Nevertheless, few studies have yet investigated the planet…

Understanding how galaxies trace the underlying matter density field is essential for characterizing the influence of the large-scale structure on galaxy formation, being therefore a key ingredient in observational cosmology. This…

I present an homogeneous determination of the physical properties of 14 transiting extrasolar planetary systems for which good data are available. The input quantities for each system are the results of the light curve analyses (Paper 1),…

Astrophysics · Physics 2009-11-13 John Southworth

We report first results from the Anglo-Australian Telescope Rocky Planet Search - an intensive, high-precision Doppler planet search targeting low-mass exoplanets in contiguous 48 night observing blocks. On this run we targeted 24 bright,…

Earth and Planetary Astrophysics · Physics 2011-02-11 S. J. O'Toole , H. R. A. Jones , C. G. Tinney , R. P. Butler , G. W. Marcy , B. Carter , J. Bailey , R. A. Wittenmyer

The physical characterization of exoplanets will require to take spectra at several orbital positions. For that purpose, a direct imaging capability is necessary. Direct imaging requires an efficient stellar suppression mechanism,…

We demonstrate the ability of convolutional neural networks (CNNs) to mitigate systematics in the virial scaling relation and produce dynamical mass estimates of galaxy clusters with remarkably low bias and scatter. We present two models,…

Cosmology and Nongalactic Astrophysics · Physics 2020-12-23 Matthew Ho , Markus Michael Rau , Michelle Ntampaka , Arya Farahi , Hy Trac , Barnabas Poczos

Employing a catalog of 175 extrasolar planets (exoplanets) detected by the Doppler-shift method, we constructed the independent and coupled mass-period functions. It is the first time in this field that the selection effect is considered in…

Earth and Planetary Astrophysics · Physics 2014-11-20 Ing-Guey Jiang , Li-Chin Yeh , Yen-Chang Chang , Wen-Liang Hung

The masses and radii of extrasolar planets are key observables for understanding their interior, formation and evolution. While transit photometry and Doppler spectroscopy are used to measure the radii and masses respectively of planets…

Earth and Planetary Astrophysics · Physics 2015-09-16 J. M. Almenara , R. F. Díaz , R. Mardling , S. C. C. Barros , C. Damiani , G. Bruno , X. Bonfils , M. Deleuil

Machine learning is now used in many areas of astrophysics, from detecting exoplanets in Kepler transit signals to removing telescope systematics. Recent work demonstrated the potential of using machine learning algorithms for atmospheric…

Of all planet-finding techniques, microlensing is potentially the most sensitive to Earth-mass planets. However, microlensing lightcurves generically yield only the planet-star mass ratio: the mass itself is uncertain to a factor of a few.…

Astrophysics · Physics 2009-11-07 Andrew Gould , B. Scott Gaudi , Cheongho Han
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