Results 51 to 60 of about 1,764,603 (268)
The mid-infrared spectrum of the transiting exoplanet HD 209458b [PDF]
, 2007 We report the spectroscopic detection of mid-infrared emission from the transiting exoplanet HD 209458b. Using archive data taken with the Spitzer/IRS instrument, we have determined the spectrum of HD 209458b between 7.46 and 15.25 microns.
Akeson, R. +4 more
core +2 more sources
The Comparison of Five Methods of Detecting Exoplanets
Highlights in Science, Engineering and Technology, 2023 Detecting exoplanets has become a hot topic, where various detection scenarios have been proposed. Five of these methods have all found more than 50 exoplanets, which are the transit method, the radial velocity method, the microlensing method, the imaging method, and the timing method.
openaire +1 more source
TOI-4600 b and c: Two Long-period Giant Planets Orbiting an Early K Dwarf
The Astrophysical Journal Letters, 2023 We report the discovery and validation of two long-period giant exoplanets orbiting the early K dwarf TOI-4600 ( V = 12.6, T = 11.9), first detected using observations from the Transiting Exoplanet Survey Satellite (TESS) by the TESS Single Transit ...
Ismael Mireles +33 more
doaj +1 more source
The Astronomical Journal, 2023 Wavelets are waveform functions that describe transient and unstable variations, such as noise. In this work, we study the advantages of discrete and continuous wavelet transforms (DWTs and CWTs) of microlensing data to denoise them and extract their ...
Sedighe Sajadian, Hossein Fatheddin
doaj +1 more source
The Prospect of Detecting Volcanic Signatures on an ExoEarth Using Direct Imaging
The Astronomical Journal, 2023 The James Webb Space Telescope (JWST) has provided the first opportunity of studying the atmospheres of terrestrial exoplanets and estimating their surface conditions.
Colby M. Ostberg +8 more
doaj +1 more source
, 2014 The HST/NICMOS transmission spectrum measurements of HD 189733b that suggest the detection of methane (CH$_{4}$) in an exoplanet atmosphere have been a source of significant controversy. With what is probably the best analyzed exoplanet spectroscopy data
Deroo, Pieter +2 more
core +1 more source
Exoplanet Detection using Machine Learning [PDF]
arXiv.org, 2020 We introduce a new machine learning based technique to detect exoplanets using the transit method. Machine learning and deep learning techniques have proven to be broadly applicable in various scientific research areas.
Abhishek Malik, B. Moster, C. Obermeier
semanticscholar +1 more source
3D magneto-hydrodynamical simulations of stellar convective noise for improved exoplanet detection [PDF]
Astronomy & Astrophysics, 2020 Context. Convective motions at the stellar surface generate a stochastic colored noise source in the radial velocity (RV) data. This noise impedes the detection of small exoplanets.
S. Sulis, D. Mary, L. Bigot
semanticscholar +1 more source
Radial Velocities as an Exoplanet Discovery Method
, 2017 The precise radial velocity technique is a cornerstone of exoplanetary astronomy. Astronomers measure Doppler shifts in the star's spectral features, which track the line-of/sight gravitational accelerations of a star caused by the planets orbiting it ...
B Campbell +17 more
core +1 more source
EXONEST: The Bayesian Exoplanetary Explorer [PDF]
, 2017 The fields of astronomy and astrophysics are currently engaged in an unprecedented era of discovery as recent missions have revealed thousands of exoplanets orbiting other stars.
Angerhausen, Daniel +6 more
core +4 more sources