Academic literature on the topic 'Exoplanets'

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Journal articles on the topic "Exoplanets"

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Montemor, Ryan Nepomuceno, and Ricardo Roberto Plaza Teixceira. "Atividades de divulgação científica sobre exoplanetas." Revista Brasileira de Educação em Ciências e Educação Matemática 5, no. 2 (2021): 445–60. http://dx.doi.org/10.33238/rebecem.2021.v.5.n.2.26865.

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Resumo: Este trabalho investigou os resultados e impactos de atividades de divulgação científica sobre a ciência dos exoplanetas, ocorridas em 2018, junto a alunos de quatro escolas de educação básica situadas em municípios do litoral norte paulista. Essas ações permitiram que os alunos adquirissem melhor compreensão acerca dos conceitos apresentados sobre exoplanetas e procuraram incentivar o aprofundamento no estudo de áreas da astronomia. Para a elaboração das apresentações estudou-se tanto o estado atual dos conhecimentos científicos sobre exoplanetas, quanto o modo como o trabalho didátic
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Varela, J., V. Réville, A. S. Brun, P. Zarka, and F. Pantellini. "Effect of the exoplanet magnetic field topology on its magnetospheric radio emission." Astronomy & Astrophysics 616 (August 2018): A182. http://dx.doi.org/10.1051/0004-6361/201732091.

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Context. The magnetized wind from stars that impact exoplanets should lead to radio emissions. According to the scaling laws derived in the solar system, the radio emission should depend on the stellar wind, interplanetary magnetic field, and topology of the exoplanet magnetosphere. Aims. The aim of this study is to calculate the dissipated power and subsequent radio emission from exoplanet magnetospheres with different topologies perturbed by the interplanetary magnetic field and stellar wind, to refine the predictions from scaling laws, and to prepare the interpretation of future radio detec
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Rodríguez-Mozos, J. M., and A. Moya. "Characterizing Exoplanets for Assessing Their Potential Habitability." Astrophysical Journal 987, no. 1 (2025): 85. https://doi.org/10.3847/1538-4357/adddbf.

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Abstract The Statistical-likelihood Exoplanetary Habitability Index (SEPHI) serves as a valuable tool for prioritizing targets for further study and identifying potentially habitable environments. In this paper, we present SEPHI 2.0, which incorporates several key improvements: (1) updated methods for estimating exoplanet internal structures and magnetic fields; (2) the inclusion of orbital eccentricity in assessing the potential for liquid water on an exoplanet’s surface; and (3) a new exoplanet mass–radius relationship. SEPHI 2.0 retains its probabilistic framework and combines the different
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Li, Megan G., Sofia Z. Sheikh, Christian Gilbertson, et al. "Developing a Drift Rate Distribution for Technosignature Searches of Exoplanets." Astronomical Journal 166, no. 5 (2023): 182. http://dx.doi.org/10.3847/1538-3881/acf83d.

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Abstract A stable-frequency transmitter with relative radial acceleration to a receiver will show a change in received frequency over time, known as a “drift rate.” For a transmission from an exoplanet, we must account for multiple components of drift rate: the exoplanet’s orbit and rotation, the Earth’s orbit and rotation, and other contributions. Understanding the drift rate distribution produced by exoplanets relative to Earth, can (a) help us constrain the range of drift rates to check in a Search for Extraterrestrial Intelligence project to detect radio technosignatures, and (b) help us d
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Wang, Zhixin. "Extrasolar Planet Candidates Identified by Single Transit from TESS." Journal of Physics: Conference Series 2441, no. 1 (2023): 012030. http://dx.doi.org/10.1088/1742-6596/2441/1/012030.

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Abstract The discovery of planets around stars other than Sun was a grand milestone to understand origin and evolution of life in Universe. 2019 Nobel Prize for Physics was awarded to the first discovery of exoplanet around Sun-like stars, Peg 51b, in 1995. With development of 25 years, the current number of confirmed exoplanets have reached 4,000. The population of exoplanets presents great diversity and complexity beyond the planets in Solar system, severely challenging our understanding on the origin and evolution of planets. Moreover, clues of extrasolar life have been partially disclosed
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Benito, María, Konstantin Karchev, Rebecca K. Leane, Sven Põder, Juri Smirnov, and Roberto Trotta. "Dark Matter halo parameters from overheated exoplanets via Bayesian hierarchical inference." Journal of Cosmology and Astroparticle Physics 2024, no. 07 (2024): 038. http://dx.doi.org/10.1088/1475-7516/2024/07/038.

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Abstract Dark Matter (DM) can become captured, deposit annihilation energy, and hence increase the heat flow in exoplanets and brown dwarfs. Detecting such a DM-induced heating in a population of exoplanets in the inner kpc of the Milky Way thus provides potential sensitivity to the galactic DM halo parameters. We develop a Bayesian Hierarchical Model to investigate the feasibility of DM discovery with exoplanets and examine future prospects to recover the spatial distribution of DM in the Milky Way. We reconstruct from mock exoplanet datasets observable parameters such as exoplanet age, tempe
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Ulmer-Moll, S., N. C. Santos, P. Figueira, J. Brinchmann, and J. P. Faria. "Beyond the exoplanet mass-radius relation." Astronomy & Astrophysics 630 (October 2019): A135. http://dx.doi.org/10.1051/0004-6361/201936049.

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Context. Mass and radius are two fundamental properties for characterising exoplanets, but only for a relatively small fraction of exoplanets are they both available. Mass is often derived from radial velocity measurements, while the radius is almost always measured using the transit method. For a large number of exoplanets, either the radius or the mass is unknown, while the host star has been characterised. Several mass-radius relations that are dependent on the planet’s type have been published that often allow us to predict the radius. The same is true for a bayesian code, which forecasts
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Yang, Gilbert. "Detection of Exoplanets based on the Transit Method." Highlights in Science, Engineering and Technology 31 (February 10, 2023): 196–203. http://dx.doi.org/10.54097/hset.v31i.5140.

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Exoplanets are planets orbiting a star other than the Sun. These exoplanets may exist in many different forms, such as a hot Jupiter and super earth. Detecting is the first step to further studying the properties of these exoplanets. In this paper, based on data of star Qatar-1 gathered from July 22nd 2022, a light flux curve is developed during the period of 04:28 - 07:01 UTC through which the star is observed. The presence of an exoplanet, presumably Qatar-1b, is revealed in the analyzing results of the collected data, showing the validity of the transit approach for exoplanet detection. By
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Liu, Christina X., and Jonathan H. Jiang. "Revisiting Seager’s 2013 Habitability Diagram with 2025 Data." Research Notes of the AAS 9, no. 5 (2025): 109. https://doi.org/10.3847/2515-5172/add46f.

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Abstract In a 2013 review, S. Seager presented a summary of known exoplanets and discussed habitability within the classic habitable zone (HZ) framework. We extended Seager’s work by incorporating a much larger and more current dataset of 5834 confirmed exoplanets from the NASA Exoplanet Archive. We then further highlighted exoplanet types (Terrestrial, Super-Earth, Neptune-Like, Gas-Giant), scaled data points by planet size, and calculated inner and outer HZ boundaries with a simplified greenhouse-based temperature model. Our updated figure illustrates the distribution of exoplanets relative
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Gupta, Richa, and Sidratul Muntaha. "Identifying Potentially Habitable Exoplanets: A Study using the Transit Method and Kepler dataset." Applied and Computational Engineering 8, no. 1 (2023): 93–97. http://dx.doi.org/10.54254/2755-2721/8/20230089.

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An exoplanet is a planet that orbits a star outside of our solar system. The study of exoplanets is an active area of research in astronomy. In this research, we aim to utilize the Kepler dataset provided by NASA EXOPLANET ACRCHIEVE to identify and classify exoplanets that could potentially support life. The Kepler dataset, which comprises of observations of over 150,000 stars, has been instrumental in the discovery of thousands of exoplanets. We will analyse the dataset using machine learning techniques to classify exoplanets as potentially habitable based on their orbital period, size, dista
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Dissertations / Theses on the topic "Exoplanets"

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Baroch, López David. "Analysis of high-precision spectroscopic and photometric data for planet and stellar characterisation." Doctoral thesis, Universitat Autònoma de Barcelona, 2021. http://hdl.handle.net/10803/673657.

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La detecció de la primera estrella binària més de 200 anys enrere va representar l'inici de tot un nou camp de l'astrofísica dedicat a l'estudi de l'evolució i les interaccions d'aquests sistemes, fent servir com a principal eina l'anàlisi del moviment reflex causat pel company orbitant. Va ser només qüestió de temps que els instruments de mesura assolissin un nivell de precisió prou elevat per a detectar els moviments induïts per planetes sobre les seves estrelles. El descobriment del primer exoplaneta fa quasi tres dècades va suposar la creació d'un reguitzell de projectes dedicats a la cerc
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Lafarga, Magro Marina. "Stellar activity and exoplanets ofMdwarfs from CARMENES visible to near-infrared spectroscopy." Doctoral thesis, Universitat Autònoma de Barcelona, 2020. http://hdl.handle.net/10803/671618.

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Després del descobriment dels primers exoplanetes fa unes tres dècades, la detecció i caracterització de companys planetaris s’ha convertit en un tema de recerca prominent, especialment la cerca de planetes semblants a la Terra, cossos rocosos que orbiten a la zona habitable (HZ) de les seves estrelles hostes. Un dels principals mètodes utilitzats per trobar i caracteritzar exoplanetes és la tècnica de l’espectroscòpia Doppler o velocitat radial (RV), basada en l’ús d’espectres estel·lars per mesurar canvis periòdics en la RV d’una estrella causats per l’atracció gravitatòria d’un exoplaneta e
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Bochinski, Jakub Jaroslaw. "Observations of transiting exoplanets." Thesis, Open University, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.699818.

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The field of exoplanetology has evolved significantly from its beginnings in the 1990s, gradually shifting emphasis from the detection of new exoplanets to characterisation of those already discovered. Simultaneously, considerable progress has been made in the area of automatisation of both instruments and data reduction techniques, leading to an ever-growing influx of new data, discoveries and facts about the planets outside of the Solar System. Observations of transiting exoplanets can be divided into two major themes: surveys, designed to find new planetary candidates; and follow-up observa
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Frith, James Michael. "Towards atmospheric characterisation of exoplanets." Thesis, University of Hertfordshire, 2014. http://hdl.handle.net/2299/14247.

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This thesis provides a multi-pronged approach towards paving the way for future space and ground based exoplanet characterisation e↵orts as well as providing new analysis of the atmosphere of the exoplanet HD 179949 b. This is done, firstly, by outlining engineering trade studies conducted for the attitude and orbit control system (AOCS) and sun shield for the Exoplanet Characterisation Observatory (EChO) spacecraft (a proposed European Space Agency exoplanet space mission). These trade studies were conducted in collaboration with EADS Astrium. A cold gas system with the possibility of a hybri
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Svensson, Rebecka. "Exploring the Diversity of Exoplanets." Thesis, Luleå tekniska universitet, Institutionen för system- och rymdteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-87402.

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The search for extrasolar planets had been ongoing for many years when Mayorand Queloz discovered 51 Pegasi b in 1995. It was a giant gas planet similar to Jupiter, but with a larger radius and of only half of Jupiter’s mass. Theso called Hot Jupiter was observed to orbit its host star 7 times closer thanMercury is orbiting the Sun. Theoretical models at the time stated that gasgiants could not form in such a short distance to the host star. Thus, thisdiscovery was completely unexpected. It was the beginning of a new field ofresearch where the diversity of exoplanets is the most remarkable dis
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Brothwell, Rayn David. "The dynamic nature of exoplanets." Thesis, Queen's University Belfast, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.705899.

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Pearson, Kyle A., Leon Palafox, and Caitlin A. Griffith. "Searching for exoplanets using artificial intelligence." OXFORD UNIV PRESS, 2018. http://hdl.handle.net/10150/627143.

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In the last decade, over a million stars were monitored to detect transiting planets. Manual interpretation of potential exoplanet candidates is labour intensive and subject to human error, the results of which are difficult to quantify. Here we present a new method of detecting exoplanet candidates in large planetary search projects that, unlike current methods, uses a neural network. Neural networks, also called 'deep learning' or 'deep nets', are designed to give a computer perception into a specific problem by training it to recognize patterns. Unlike past transit detection algorithms, dee
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Hodosán, Gabriella. "Lightning on exoplanets and brown dwarfs." Thesis, University of St Andrews, 2017. http://hdl.handle.net/10023/12079.

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Lightning is an important electrical phenomenon, known to exist in several Solar System planets. Amongst others, it carries information on convection and cloud formation, and may be important for pre-biotic chemistry. Exoplanets and brown dwarfs have been shown to host environments appropriate for the initiation of lightning discharges. In this PhD project, I aim to determine if lightning on exoplanets and brown dwarfs can be more energetic than it is known from Solar System planets, what are the most promising signatures to look for, and if these "exo-lightning" signatures can be detected fro
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Georgieva, Iskra. "Searching for Exoplanets in K2 Data." Thesis, Luleå tekniska universitet, Rymdteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-70960.

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The field of extrasolar planets is undoubtedly one of the most exciting and fast-moving in astronomy. Thanks to the Kepler Space Telescope, which has given us the Kepler and K2 missions, we now have thousands of planets to study and thousands more candidates waiting to be confirmed.For this thesis work, I used K2 data in the form of stellar light curves for Campaign 15 – the 15th observation field of this mission – to search for transiting exoplanets. I present one way to produce a viable list of planetary candidates, which is the first step to exoplanet discovery. I do this by first applying
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Armstrong, David John. "On the abundance of circumbinary exoplanets." Thesis, University of Warwick, 2015. http://wrap.warwick.ac.uk/72676/.

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Circumbinary planets are bodies that orbit both components in a binary star system. This thesis focuses on transits of these planets, which with the aid of the Kepler space telescope have recently led to the discovery of several such objects. First, transit timing variations - departures from strict periodicity in the transit times - are studied. These arise from both the motion of the host stars and relatively rapid precession of the planet’s orbit. Limits on the maximum possible transit timing variation are derived, and tested against N-body simulations of simulated circumbinary systems. The
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Books on the topic "Exoplanets"

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Mason, John W., ed. Exoplanets. Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-74008-7.

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Kitchin, Chris. Exoplanets. Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-0644-0.

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Simon, Seymour. Exoplanets. HarperCollins Publishers, 2018.

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Deeg, Hans J., and Juan Antonio Belmonte, eds. Handbook of Exoplanets. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-30648-3.

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Bozza, Valerio, Luigi Mancini, and Alessandro Sozzetti, eds. Methods of Detecting Exoplanets. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-27458-4.

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Kitchin, C. R. Exoplanets: Finding, exploring, and understanding alien worlds. Springer, 2012.

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Musielak, Zdzislaw, and Billy Quarles. Three Body Dynamics and Its Applications to Exoplanets. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-58226-9.

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Souchay, Jean J., and Rudolf Dvorak, eds. Dynamics of Small Solar System Bodies and Exoplanets. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-04458-8.

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Stakem, Patrick. Exoplanets. Independently Published, 2018.

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Simon, Seymour. Exoplanets. HarperCollins Publishers, 2018.

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Book chapters on the topic "Exoplanets"

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Inglis, Michael. "Exoplanets." In The Patrick Moore Practical Astronomy Series. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-11644-0_13.

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Karttunen, Hannu, Pekka Kröger, Heikki Oja, Markku Poutanen, and Karl Johan Donner. "Exoplanets." In Fundamental Astronomy. Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-53045-0_22.

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Inglis, Michael. "Exoplanets." In The Patrick Moore Practical Astronomy Series. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-16805-5_15.

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Rice, Ken. "Exoplanets." In Handbook of Astrobiology. CRC Press, 2018. http://dx.doi.org/10.1201/b22230-50.

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Jagadeesh, Madhu Kashyap, and Usha Shekhar. "Exoplanets." In Extreme Habitable Environments. CRC Press, 2022. http://dx.doi.org/10.1201/9780429289590-3.

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Kitchin, Chris. "Because We Live on One! – or – Why Planets and Exoplanets Are Important." In Exoplanets. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4614-0644-0_1.

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Kitchin, Chris. "On the Track of Alien Planets – Other Approaches (0% of All Exoplanet Primary Discoveries)." In Exoplanets. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4614-0644-0_10.

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Kitchin, Chris. "Where Do We Go from Here? – Future Approaches to Exoplanet Detection and Study." In Exoplanets. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4614-0644-0_11.

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Kitchin, Chris. "Exoplanets Revealed – What They Are Really Like." In Exoplanets. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4614-0644-0_12.

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Kitchin, Chris. "Exoplanets and Exoplanetary Systems: Pasts and Futures." In Exoplanets. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4614-0644-0_13.

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Conference papers on the topic "Exoplanets"

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Kamath, Ankitha, and Shreya Umesh Ballolli. "Unveiling Rogue Exoplanets: Swarm CubeSat Telescope." In IAF Symposium on Ongoing and Near Future Space Astronomy and Solar-System Science Missions, Held at the 75th International Astronautical Congress (IAC 2024). International Astronautical Federation (IAF), 2024. https://doi.org/10.52202/078361-0032.

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Levine, W. Garrett, and Gregory Laughlin. "Sustaining the Moore's Law Analog for Exoplanets." In IAF Symposium on Ongoing and Near Future Space Astronomy and Solar-System Science Missions, Held at the 75th International Astronautical Congress (IAC 2024). International Astronautical Federation (IAF), 2024. https://doi.org/10.52202/078361-0031.

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Monnier, John D., Tyler Gardner, Linling Shuai, et al. "Precision interferometry with MIRC-X/MYSTIC for exoplanets." In Optical and Infrared Interferometry and Imaging IX, edited by Stephanie Sallum, Joel Sanchez-Bermudez, and Jens Kammerer. SPIE, 2024. http://dx.doi.org/10.1117/12.3020765.

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Deshler, Nico, Itay Ozer, Amit Ashok, and Saikat Guha. "Experimental Demonstration of a Quantum-Optimal Direct Imaging Coronagraph." In Computational Optical Sensing and Imaging. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cosi.2024.cf1b.3.

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We implement a direct imaging coronagraph that rejects all light from an on-axis star using a double-pass spatial mode sorter. Our experimental setup can precisely localize exoplanets below the diffraction limit at 1000:1 star-planet contrast.
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Avtaeva, A., and V. Shematovich. "Comparison of non-thermal atmospheric losses for hot exoplanets." In ASTRONOMY AT THE EPOCH OF MULTIMESSENGER STUDIES. Proceedings of the VAK-2021 conference, Aug 23–28, 2021. Crossref, 2022. http://dx.doi.org/10.51194/vak2021.2022.1.1.074.

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The non-thermal atmospheric losses due to the contribution of the exothermic photochemistry to the formation of a fractionof suprathermal atomic hydrogen in the H 2 → H transition region were studied and compared for two exoplanets of differenttypes and different parent star. Exoplanet GJ 436b is a warm neptune orbiting the red dwarf GJ 436. The calculated non-thermal fluxes due to the exothermic photochemistry for both exoplanets were found in the range (3.0 − 3.5) × 10 12 cm −2s −1 for a moderate level of stellar activity in UV radiation.
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Ipatov, S. I. "Migration of planetesimals to planets located in habitable zones in the Solar System and in the Proxima Centauri system." In ASTRONOMY AT THE EPOCH OF MULTIMESSENGER STUDIES. Proceedings of the VAK-2021 conference, Aug 23–28, 2021. Crossref, 2022. http://dx.doi.org/10.51194/vak2021.2022.1.1.084.

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The values of the probability of a collision of a planetesimal with the Earth were typically greater for smaller distances Rfrom the Sun at 3 < R < 40 AU. The probability varied from about 10 −6 at R ∼ 30 − 40 AU to 10 −3 − 10 −2 at R about3.2-3.3 AU. Though only one of several hundreds of planetesimals from the zone of exoplanet c in the Proxima Centaurisystem reached the inner exoplanet b, it often collides with the planet b. The probability of a collision of such planetesimalwith the exoplanet b could be about several 10 −4 . A lot of icy material could be delivered to inner exoplanet
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Albrecht, Simon. "Exoplanets." In Frank N. Bash Symposium 2011: New Horizons in Astronomy. Sissa Medialab, 2012. http://dx.doi.org/10.22323/1.149.0002.

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Dandumont, Colin, Jens Kammerer, Denis Defrère, and Jérôme Loicq. "Performance study of interferometric small-sats to detect exoplanets: updated exoplanet yield and application to nearby exoplanets." In Optical and Infrared Interferometry and Imaging VII, edited by Antoine Mérand, Stephanie Sallum, and Peter G. Tuthill. SPIE, 2020. http://dx.doi.org/10.1117/12.2562119.

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Russo, Matt, and Andrew Santaguida. "5000 Exoplanets: Listen to the Sounds of Discovery." In ICAD 2022: The 27th International Conference on Auditory Display. International Community for Auditory Display, 2022. http://dx.doi.org/10.21785/icad2022.023.

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In March of 2022, NASA announced the discovery of the 5000th planet orbiting a star other than our sun (an exoplanet). We have created a sonification and visualization to celebrate this milestone and to communicate the exciting history of discovery to the general public. Our work provides a visceral experience of how humanity’s knowledge of alien worlds has progressed. A relatively simple and straightforward sonification mapping is used to make the informational content as accessible to the general public as possible. Listeners can see and hear the timing, number, and relative orbital periods
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Smith, Christopher J., Geronimo L. Villanueva, and Gabrielle Suissa. "Imagining Exoplanets." In SIGGRAPH '20: Special Interest Group on Computer Graphics and Interactive Techniques Conference. ACM, 2020. http://dx.doi.org/10.1145/3388767.3407354.

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Reports on the topic "Exoplanets"

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Smullen, Rachel. Exoplanets: Strange New Worlds. Office of Scientific and Technical Information (OSTI), 2021. http://dx.doi.org/10.2172/1779647.

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Lunine, J., D. Fischer, H. Hammel, et al. Worlds Beyond: A Strategy for the Detection and Characterization of Exoplanets. Office of Scientific and Technical Information (OSTI), 2008. http://dx.doi.org/10.2172/945593.

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Zilberman, Mark. Shouldn’t Doppler 'De-boosting' be accounted for in calculations of intrinsic luminosity of Standard Candles? Intellectual Archive, 2021. http://dx.doi.org/10.32370/iaj.2569.

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"Doppler boosting / de-boosting" is a well-known relativistic effect that alters the apparent luminosity of approaching/receding radiation sources. "Doppler boosting" alters the apparent luminosity of approaching light sources to appear brighter, while "Doppler de-boosting" alters the apparent luminosity of receding light sources to appear fainter. While "Doppler boosting / de-boosting" has been successfully accounted for and observed in relativistic jets of AGN, double white dwarfs, in search of exoplanets and stars in binary systems it was ignored in the establishment of Standard Candles for
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Frank, Adam. Final Report. DE-SC0020434 PI: Frank, Adam The Radiative Magneto-Hydrodynamics of Colliding Flow: Instabilities, Reconnection and Exoplanet Atmosphere Connections. Office of Scientific and Technical Information (OSTI), 2024. http://dx.doi.org/10.2172/2344993.

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