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The Interstellar Boundary Explorer (IBEX) spacecraft is providing the first all-sky maps of the energetic neutral atoms (ENAs) produced by charge-exchange between interstellar neutral \HI\ atoms and heliospheric solar wind and pickup ions…

Since 2008, the Interstellar Boundary Explorer (IBEX) satellite has been gathering data on heliospheric energetic neutral atoms (ENAs) while being exposed to various sources of background noise, such as cosmic rays and solar energetic…

Instrumentation and Methods for Astrophysics · Physics 2023-11-30 Kelly R. Moran , Dave Osthus , Brian P. Weaver , Lauren J. Beesley , Madeline A. Stricklin , Paul H. Janzen , Daniel B. Reisenfeld

The Interstellar Boundary Explorer (IBEX) satellite has been in orbit since 2008 and detects energy-resolved energetic neutral atoms (ENAs) originating from the heliosphere. Different regions of the heliosphere generate ENAs at different…

Instrumentation and Methods for Astrophysics · Physics 2022-10-24 Dave Osthus , Brian P. Weaver , Lauren J. Beesley , Kelly R. Moran , Madeline A. Ausdemore , Eric J. Zirnstein , Paul H. Janzen , Daniel B. Reisenfeld

The Interstellar Boundary Explorer (IBEX) mission is exploring the frontiers of the heliosphere where energetic neutral atoms (ENAs) are formed from charge exchange between interstellar neutral hydrogen atoms and solar wind ions and pickup…

Astrophysics of Galaxies · Physics 2015-03-17 Priscilla C. Frisch , David J. McComas

NASA's Interstellar Boundary Explorer (IBEX) satellite collects data on energetic neutral atoms (ENAs) that can provide insight into the heliosphere boundary between our solar system and interstellar space. Using these data, scientists can…

In this work, we present LOTUS (Learning to Learn with Optimal Transport for Unsupervised Scenarios), a simple yet effective method to perform model selection for multiple unsupervised machine learning(ML) tasks such as outlier detection…

Machine Learning · Computer Science 2025-10-14 Prabhant Singh , Pieter Gijsbers , Elif Ceren Gok Yildirim , Murat Onur Yildirim , Joaquin Vanschoren

The Interstellar Boundary Explorer (IBEX) has now operated in space for 7 years and returned nearly continuous observations that have led to scientific discoveries and reshaped our entire understanding of the outer heliosphere and its…

Post-launch boresight of the IBEX-Lo instrument onboard the Interstellar Boundary Explorer (IBEX) is determined based on IBEX-Lo Star Sensor observations. Accurate information on the boresight of the neutral gas camera is essential for…

Instrumentation and Methods for Astrophysics · Physics 2012-02-09 M. Hlond , M. Bzowski , E. Möbius , H. Kucharek , D. Heirtzler , N. A. Schwadron , M. E. O'Neill , G. Clark , G. B. Crew , S. Fuselier , D. J. McComas

We propose a new method to scan the data and then to infer the boundaries of the interplanetary coronal mass ejections, especially the interplanetary events observed by \emph{Ulysses}. The local minima of the temperatures ratio measured by…

Solar and Stellar Astrophysics · Physics 2016-05-17 Cristiana Dumitrache , Nedelia A. Popescu

In many scientific fields which rely on statistical inference, simulations are often used to map from theoretical models to experimental data, allowing scientists to test model predictions against experimental results. Experimental data is…

High Energy Physics - Phenomenology · Physics 2022-07-07 Jessica N. Howard , Stephan Mandt , Daniel Whiteson , Yibo Yang

We present new kinetic-gasdynamic model of the solar wind interaction with the local interstellar medium. The model incorporates several processes suggested by McComas et al. (2009) for the origin of the heliospheric ENA ribbon -- the most…

Solar and Stellar Astrophysics · Physics 2015-05-18 S. V. Chalov , D. B. Alexashov , D. McComas , V. V. Izmodenov , Yu. G. Malama , N. Schwadron

The neutral particles sensor ELENA (Emitted Low Energy Neutral Atoms) for the ESA/JAXA BepiColombo mission to Mercury (in the SERENA instrument suite) is devoted to measure low energetic neutral atoms. The main goal of the experiment is…

Direct-sampling observations of interstellar neutral (ISN) He by Interstellar Boundary Explorer (IBEX) provide valuable insight into the physical state of and processes operating in the interstellar medium ahead of the heliosphere. The ISN…

We present LoTUS, a novel Machine Unlearning (MU) method that eliminates the influence of training samples from pre-trained models, avoiding retraining from scratch. LoTUS smooths the prediction probabilities of the model up to an…

Machine Learning · Computer Science 2025-08-29 Christoforos N. Spartalis , Theodoros Semertzidis , Efstratios Gavves , Petros Daras

Several concepts for heliospheric missions operating at heliocentric distances far beyond Earth orbit are currently investigated by the scientific community. The mission concept of the Interstellar Probe (McNutt et al. 2018), e.g., aims at…

Solar and Stellar Astrophysics · Physics 2020-01-08 Andre Galli , Peter Wurz , Horst Fichtner , Yoshifumi Futaana , Stas Barabash

Testing and evaluation is an important step before the large-scale application of the autonomous driving systems (ADSs). Based on the three level of scenario abstraction theory, a testing can be performed within a logical scenario, followed…

Artificial Intelligence · Computer Science 2025-10-24 Xinzheng Wu , Junyi Chen , Jianfeng Wu , Longgao Zhang , Tian Xia , Yong Shen

Remote sensing satellites capture the cyclic dynamics of our Planet in regular time intervals recorded in satellite time series data. End-to-end trained deep learning models use this time series data to make predictions at a large scale,…

Machine Learning · Computer Science 2022-12-23 Marc Rußwurm , Nicolas Courty , Rémi Emonet , Sébastien Lefèvre , Devis Tuia , Romain Tavenard

We are at a unique timeline in the history of human evolution where we may be able to discover earth-like planets around stars outside our solar system where conditions can support life or even find evidence of life on those planets. With…

Earth and Planetary Astrophysics · Physics 2021-12-08 Pawel Pratyush , Akshata Gangrade

We introduce LOTUS, a continual imitation learning algorithm that empowers a physical robot to continuously and efficiently learn to solve new manipulation tasks throughout its lifespan. The core idea behind LOTUS is constructing an…

Robotics · Computer Science 2024-11-26 Weikang Wan , Yifeng Zhu , Rutav Shah , Yuke Zhu

In the early 1990s, contemporary interstellar dust penetrating deep into the heliosphere was identified with the in-situ dust detector on board the Ulysses spacecraft. Later on, interstellar dust was also identified in the data sets…

Earth and Planetary Astrophysics · Physics 2019-06-19 Harald Krüger , Peter Strub , Nicolas Altobelli , Veerle Sterken , Ralf Srama , Eberhard Grün
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