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Dynamic model atmospheres of Mira stars predict variabilities in the photospheric radius and in atmospheric molecular layers which are not yet strongly constrained by observations. Here we measure the variability of the oxygen-rich Mira…

Solar and Stellar Astrophysics · Physics 2018-06-06 M. Wittkowski , G. Rau , A. Chiavassa , S. Hoefner , M. Scholz , P. R. Wood , W. J. de Wit , F. Eisenhauer , X. Haubois , T. Paumard

We investigate how the dust temperature is affected by local environmental quantities, especially dust surface density ($\Sigma_\mathrm{dust}$), dust-to-gas ratio (D/G) and interstellar radiation field. We compile multi-wavelength…

Deep probabilistic time series forecasting models have become an integral part of machine learning. While several powerful generative models have been proposed, we provide evidence that their associated inference models are oftentimes too…

Machine Learning · Computer Science 2020-12-07 Chen Qiu , Stephan Mandt , Maja Rudolph

The path to understanding star formation processes begins with the study of the formation of molecular clouds. The outskirts of these clouds are characterized by low column densities that allow the penetration of ultraviolet radiation,…

Astrophysics of Galaxies · Physics 2021-02-24 L. Beitia-Antero , A. I. Gómez de Castro , J. C. Vallejo

Wind energy has an inherent intermittent character due to certain inevitable factors of nature, such as availability of wind at different weather conditions, wind direction etc. To study the intermittent character of wind energy, its daily…

Atmospheric and Oceanic Physics · Physics 2022-06-30 Sayantan Chakraborty , Sourav Samanta , Shukla Samanta , Dipak Ghosh , Kumardeb Banerjee

Laboratory experiments have shown that cardiovascular diseases are positively correlated to the concentration of ambient air pollutants, such as SO2, NO2, PM10, etc. It has also been repeatedly reported in many countries that increased…

Applications · Statistics 2013-08-08 Menghui Li , Dasheng Luo , Chenghua Cao , Xiaochuan Pan , Qixin Wang

Unimodality constitutes a key property indicating grouping behavior of the data around a single mode of its density. We propose a method that partitions univariate data into unimodal subsets through recursive splitting around valley points…

Machine Learning · Computer Science 2024-12-23 Paraskevi Chasani , Aristidis Likas

A many-flavor electron gas (MFEG) in a semiconductor with a valley degeneracy ranging between 6 and 24 was analyzed using diffusion Monte Carlo (DMC) calculations. The DMC results compare well with an analytic expression derived by one of…

Strongly Correlated Electrons · Physics 2009-11-13 G. J. Conduit , P. D. Haynes

Epidemiological research supports an association between maternal exposure to air pollution during pregnancy and adverse children's health outcomes. Advances in exposure assessment and statistics allow for estimation of both critical…

Urban air quality forecasting is challenging because pollutant concentrations are nonlinear, nonstationary, spatiotemporally dependent, and often affected by anomalous observations caused by traffic congestion, industrial emissions, and…

Machine Learning · Computer Science 2026-05-06 Nourin Jahan , Madhurima Panja , Muhammed Navas T , Tanujit Chakraborty

Vacancy-mediated diffusion of impurities under strong impurity-vacancy (I-v) attraction has been studied in the framework of the five-frequency model (5FM) for the FCC host. The system of impurities and tightly bound I-v pairs has been…

Materials Science · Physics 2018-01-17 V. I. Tokar

In developing a deeper understanding of the Circumgalactic Medium, one feature that is poorly understood is the nature of the ultraviolet background (UVB) and its impact on observed column densities. A wide array of UVB models have been…

Cosmology and Nongalactic Astrophysics · Physics 2025-05-30 Elias Taira , Claire Kopenhafer , Brian W. O'Shea

Smoking in public has been proven to be more harmful to nonsmokers, making it a huge public health concern with urgent need for proactive measures and attention by authorities. With the world moving towards the 4th Industrial Revolution,…

Computer Vision and Pattern Recognition · Computer Science 2021-12-16 Nakayiza Hellen , Ggaliwango Marvin

In addition to occupying the extreme, diffuse tail of the dwarf galaxy population, Ultra-Diffuse Galaxies (UDGs) are themselves a key laboratory in which to study star formation in extreme low-density environments. In the second paper of…

Astrophysics of Galaxies · Physics 2022-11-16 Erin Kado-Fong , Chang-Goo Kim , Jenny E. Greene , Lachlan Lancaster

Environmental data often take the form of a collection of curves observed sequentially over time. An example of this includes daily pollution measurement curves describing the concentration of a particulate matter in ambient air. These…

Computation · Statistics 2016-08-26 Han Lin Shang

While we have learned much about Ultra-Diffuse Galaxies (UDGs) in groups and clusters, relatively little is known about them in less-dense environments. More isolated UDGs are important for our understanding of UDG formation scenarios…

Astrophysics of Galaxies · Physics 2019-07-22 Daniel J. Prole , Remco F. J. van der Burg , Michael Hilker , Jonathan I. Davies

Over the past decade, studies of dust in the Andromeda galaxy (M31) have shown radial variations in the dust emissivity index ($\beta$). Understanding the astrophysical reasons behind these radial variations may give clues about the…

Astrophysics of Galaxies · Physics 2021-11-17 G. Athikkat-Eknath , S. A. Eales , M. W. L. Smith , A. Schruba , K. A. Marsh , A. P. Whitworth

To date, mid-infrared properties of Galactic black hole binaries have barely been investigated in the framework of multi-wavelength campaigns. Yet, studies in this spectral domain are crucial to get complementary information on the presence…

High Energy Astrophysical Phenomena · Physics 2015-05-18 F. Rahoui , S. Chaty , J. Rodriguez , Y. Fuchs , I. F. Mirabel , G. G. Pooley

Recent high-resolution interferometric images of submillimetre galaxies (SMGs) reveal fascinatingly complex morphologies. This raises a number of questions: how does the relative orientation of a galaxy affect its observed submillimetre…

Astrophysics of Galaxies · Physics 2022-08-31 C. C. Lovell , J. E. Geach , R. Davé , D. Narayanan , K. E. K. Coppin , Q. Li , M. Franco , G. C. Privon

The presence of stable, compact circumbinary discs of gas and dust around post-asymptotic giant branch (post-AGB) binary systems has been well established. We focus on one such system: IRAS 08544-4431. We present an interferometric…

Solar and Stellar Astrophysics · Physics 2021-06-16 A. Corporaal , J. Kluska , H. Van Winckel , D. Bollen , D. Kamath , M. Min