Results 31 to 40 of about 19,828 (210)

Evolution of novel activation functions in neural network training for astronomy data: habitability classification of exoplanets

The European Physical Journal Special Topics, 2020
Quantification of habitability is a complex task. Previous attempts at measuring habitability are well documented. Classification of exoplanets, on the other hand, is a different approach and depends on quality of training data available in habitable exoplanet catalogs.
Snehanshu Saha, Nithin Nagaraj, Archana Mathur, Rahul Yedida, Sneha H R   +4 more
openaire   +3 more sources

Mission Design of an Aperture-Synthetic Interferometer System for Space-Based Exoplanet Exploration

Space: Science & Technology, 2022
In recent years, exoplanet detection has become the technological frontier in the field of astronomy, because it provides evidence of the origin of life and the future human habitable exoplanet.
Feida Jia, Xiangyu Li, Zhuoxi Huo, Dong Qiao   +3 more
doaj   +1 more source

Planet Populations as a Function of Stellar Properties

, 2018
Exoplanets around different types of stars provide a window into the diverse environments in which planets form. This chapter describes the observed relations between exoplanet populations and stellar properties and how they connect to planet formation ...
A Cumming, A Izidoro, A Mortier, A Mortier, A Silburt, A Wolfgang, A. Mortier, AC Boley, AN Youdin, AP Boss, AP Boss, AW Howard, AW Mann, B Courcol, B Rojas-Ayala, Benjamin T. Montet, BMS Hansen, BMS Hansen, C Beaugé, C Cossou, C Dressing, C Dressing, C Laws, C Mordasini, C Mordasini, C Obermeier, C Terquem, Christian Clanton, CJ Burke, Courtney D. Dressing, D Charbonneau, D Foreman-Mackey, D Huber, D Huber, DA Fischer, Daniel C. Fabrycky, DNC Lin, Dun Wang, E Chiang, E Gaidos, E Gaidos, E Gaidos, E Jehin, E Jofré, E Kokubo, E Kokubo, E Kokubo, EA Petigura, EA Petigura, EJ Lee, EW Thommes, F Fressin, F Meru, FJ Ciesla, G Gonzalez, G Gonzalez, G Gonzalez, G Kennedy, G Laughlin, G Laughlin, GAL Coleman, GD Mulders, GD Mulders, GD Mulders, GD Mulders, GW Marcy, GW Wetherill, H Rein, HE Schlichting, I Pascucci, IJM Crossfield, IN Reid, J Maldonado, J Wang, JA Johnson, JA Johnson, JA Johnson, JB Pollack, JE Chambers, JJ Lissauer, JL Christiansen, JN Winn, Jonathan J. Swift, JP Williams, K Fuhrmann, K Kornet, K Sadakane, K.-M. Dittkrist, KC Schlaufman, KC Schlaufman, KC Schlaufman, Konstantin Batygin, L Ghezzi, L Pasquini, LA Buchhave, LA Buchhave, LA Buchhave, M Endl, M Endl, M Gillon, M Ikoma, M Mayor, M Mayor, M. Ansdell, ME Everett, MI Jones, N. C. Santos, NC Santos, NC Santos, NC Santos, NC Santos, P Goldreich, P Pinilla, PW Sullivan, RC Terrien, RI Dawson, RL Gilliland, Robert A. Wittenmyer, RP Butler, S Dong, S Hekker, S Ida, S Ida, S Ida, S Mathur, S Mohanty, S Udry, S Udry, S. G. Sousa, Sabine Reffert, Scott A. Barenfeld, Sean M. Andrews, SG Sousa, SN Raymond, SN Raymond, TD Morton, TM Brown, V. Zh. Adibekyan, Vardan Adibekyan, W Zhu, WR Ward, X Bonfils, Y Hasegawa, Y Hasegawa, Y Takeda, Y. Alibert, Y. Alibert, ZK Berta   +147 more
core   +1 more source

An Unusual Transmission Spectrum for the Sub-Saturn KELT-11b Suggestive of a Sub-Solar Water Abundance

, 2020
We present an optical-to-infrared transmission spectrum of the inflated sub-Saturn KELT-11b measured with the Transiting Exoplanet Survey Satellite (TESS), the Hubble Space Telescope (HST) Wide Field Camera 3 G141 spectroscopic grism, and the Spitzer ...
Ahlers, John P., Angerhausen, Daniel, Awiphan, Supachai, Barclay, Thomas, Beatty, Thomas, Chotani, Heena, Colón, Knicole D., Cox, Leafia Sheraden, Fortney, Jonathan J., Gilbert, Emily A., James, David J., Kotnik, Cliff, Kreidberg, Laura, LeBrun, Danny, Line, Michael R., Lopez, Eric D., Madhusudhan, Nikku, Mandell, Avi, Matzko, William, McLeod, Kim K., Murawski, Gabriel, Pepper, Joshua, Plavchan, Peter, Rea, David, Rodriguez, Joseph E., Stassun, Keivan G., Stevenson, Kevin B., Tamburo, Patrick, Tan, Nicole, Vidaurri, Monica, Webster, Scott, Welbanks, Luis, Williams, James K.   +32 more
core   +1 more source

Spectroscopic Transit Search: a self-calibrating method for detecting planets around bright stars [PDF]

, 2019
We search for transiting exoplanets around the star $\beta$ Pictoris using high resolution spectroscopy and Doppler imaging that removes the need for standard star observations.
Celeste, Maggie, de Mooij, Ernst, Hooton, Matthew J., Kenworthy, Matthew, Mamajek, Eric E., Ridden-Harper, Andrew R., Sipőcz, Brigitta, Snellen, Ignas. A. G., van Sluijs, Lennart, Wilson, Paul A.   +9 more
core   +3 more sources

The Fourier-Kelvin Stellar Interferometer: a low-complexity low-cost space mission for high-resolution astronomy and direct exoplanet detection [PDF]

SPIE Proceedings, 2006
The Fourier-Kelvin Stellar Interferometer (FKSI) is a mission concept for a spacecraft-borne nulling interferometer for high-resolution astronomy and the direct detection of exoplanets and assay of their environments and atmospheres. FKSI is a high angular resolution system operating in the near to midinfrared spectral region and is a scientific and ...
Barry, R. K., Danchi, W. C., Deming, L. D., Richardson, L. J., Kuchner, M. J., Seager, S., Frey, B. J., Martino, A. J., Lee, K. A., Zuray, M., Rajagopal, J., Hyde, T. T., Millan-Gabet, R., Monnier, J. D., Allen, R. J., Traub, W. A.   +15 more
openaire   +2 more sources

Detection of Exoplanets with Machine Learning Techniques Through Transit Light-curve Analysis

The Astronomical Journal
Exoplanet detection is an active research area in astronomy. As the volume of astronomical data increases, there is a need for methods that can automate the data processing pipeline efficiently.
Mir Sakhawat Hossain, Md. Sadman
doaj   +1 more source

High Accuracy Molecular Line Lists for Studies of Exoplanets and Other Hot Atmospheres

Frontiers in Astronomy and Space Sciences, 2022
The desire to characterize and model the atmospheres of the many extrasolar planets that have been discovered over the last three decades is a major driver of current astronomy.
Jonathan Tennyson, Sergey N. Yurchenko
doaj   +1 more source

Worlds Beyond: A Strategy for the Detection and Characterization of Exoplanets Executive Summary of a Report of the ExoPlanet Task Force Astronomy and Astrophysics Advisory Committee Washington, DC June 23, 2008 [PDF]

Astrobiology, 2008
[No abstract] ; © 2008 Mary Ann Liebert, Inc. Portions of this work were performed under the auspices of the US Department of Energy by Lawrence Livermore National Laboratory in part under Contract W-7405-Eng-48 and in part under Contract DE-AC52-07NA27344.
Lunine, Jonathan I., Fischer, Debra, Hammel, H. B., Henning, Thomas, Hillenbrand, Lynne, Kasting, James, Laughlin, Greg, Macintosh, Bruce, Marley, Mark, Melnick, Gary, Monet, David, Noecker, Charley, Peale, Stan, Quirrenbach, Andreas, Seager, Sara, Winn, Joshua N.   +15 more
openaire   +2 more sources

Lithium Niobate Quadratic Integrated Nonlinear Photonics: Enabling Ultra‐Wide Bandwidth and Ultrafast Photonic Engines

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
This perspective surveys emerging quantum and classical photonic applications across operating wavelengths and timescales, highlighting persistent technological gaps in integrated light sources. We examine the unique advantages of quadratic nonlinear photonics on the thin‐film lithium niobate (TFLN) platform and discuss strategies for realizing ...
Meng Tian, Guanyu Han, Ziyao Feng, Yu Liu, Yu Wang, Wenjun Deng, Ayed Al Sayem, Qiushi Guo   +7 more
wiley   +1 more source