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We present the first generative approach to photomosaic creation. Traditional photomosaic methods rely on a large number of tile images and color-based matching, which limits both diversity and structural consistency. Our generative…

Computer Vision and Pattern Recognition · Computer Science 2026-04-09 Jaeyoung Chung , Hyunjin Son , Kyoung Mu Lee

We present a new numerical method for the generation of binary neutron star initial data using a method along the lines of the the Wilson-Mathews or the closely related conformal thin sandwich approach. Our method uses six different…

General Relativity and Quantum Cosmology · Physics 2010-12-02 Wolfgang Tichy

We propose a new method to infer the star formation histories of resolved stellar populations. With photometry one may plot observed stars on a colour-magnitude diagram (CMD) and then compare with synthetic CMDs representing different star…

Solar and Stellar Astrophysics · Physics 2015-06-16 J. J. Walmswell , J. J. Eldridge , B. J. Brewer , C. A. Tout

We propose a minimal coupled map lattice (CML) for the spiral pattern formation in astronomical objects which consist of accreting gas induced by gravity as a long-range force. In the proposed CML, we assume only two procedures: one in…

Chaotic Dynamics · Physics 2020-04-14 Erika Nozawa

Observations of the spatial distributions of young stars in star-forming regions can be linked to the theory of clustered star formation using spatial statistical methods. The MYStIX project provides rich samples of young stars from the…

The first stars in the Universe form when chemically pristine gas heats as it falls into dark matter potential wells, cools radiatively due to the formation of molecular hydrogen, and becomes self-gravitating. We demonstrate with…

Astrophysics · Physics 2008-11-26 Liang Gao , Tom Theuns

A "collect and collapse" model of triggered star formation is used to estimate the parameters of ring-like structure consisted of a sequence of low-mass clumps in the W40 region. The model parameters are close to the observed ones if the…

Astrophysics of Galaxies · Physics 2015-06-03 L. E. Pirogov

Context. Filamentary structures appear to be ubiquitous in the interstellar medium. Being able to detect and characterize them is the first step toward understanding their origin, their evolution, and their role in the Galactic cycle of…

Astrophysics of Galaxies · Physics 2022-12-14 J. -S. Carrière , L. Montier , K. Ferrière , I. Ristorcelli

We perform simulations to test the effects of a moving gas filament on a young star cluster (i.e. the "Slingshot" Model). We model Orion Nebula Cluster-like clusters as Plummer spheres and the Integral Shaped Filament gas as a cylindrical…

Astrophysics of Galaxies · Physics 2019-09-11 D. Matus Carrillo , M. Fellhauer , A. Stutz

Simulations of idealised star-forming filaments of finite length typically show core growth which is dominated by two cores forming at its respective end. The end cores form due to a strong increasing acceleration at the filament ends which…

Astrophysics of Galaxies · Physics 2023-01-11 Stefan Heigl , Elena Hoemann , Andreas Burkert

On the basis of ``sticky particle'' calculations, it is argued that the gas features observed within 10 pc of the Galactic Centre-- the circumnuclear disk (CND) and the ionized gas filaments-- as well as the newly formed stars in the inner…

Astrophysics · Physics 2009-10-30 R. H. Sanders

We present a new method for quantifying the abundance of satellites around field galaxies and in groups. The method is designed to work with samples, such as local photometric redshift catalogues, that do not have full spectroscopic…

Astrophysics of Galaxies · Physics 2021-12-21 Chengyu Xi , James E. Taylor

We examine the origin of clustercentric gradients in the star formation rates and colors of rich cluster galaxies within the context of a simple model where clusters are built through the ongoing accretion of field galaxies. The model…

Astrophysics · Physics 2009-09-28 Michael L. Balogh , Julio F. Navarro , Simon L. Morris

Synthetic polymeric materials underpin fundamental technologies in the energy, electronics, consumer goods, and medical sectors, yet their development still suffers from prolonged design timelines. Although polymer informatics tools have…

Computational Engineering, Finance, and Science · Computer Science 2025-06-12 Ayush Jain , Rampi Ramprasad

The star formation history of nearby early-type galaxies is investigated via numerical modelling. Idealized hydrodynamical N-body simulations with a star formation prescription are used to study the minor merger process between a giant…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 S. Peirani , R. M. Crockett , S. Geen , S. Khochfar , S. Kaviraj , J. Silk

We introduce a diffusion-based generative model to describe the distribution of galaxies in our Universe directly as a collection of points in 3-D space (coordinates) optionally with associated attributes (e.g., velocities and masses),…

Cosmology and Nongalactic Astrophysics · Physics 2024-12-24 Carolina Cuesta-Lazaro , Siddharth Mishra-Sharma

We propose a new pattern-matching algorithm for matching CCD images to a stellar catalogue based statistical method in this paper. The method of constructing star pairs can greatly reduce the computational complexity compared with the…

Instrumentation and Methods for Astrophysics · Physics 2019-03-25 Zhen-Jun Zhang , Yi-Gong Zhang , Xiang-Ming Cheng , Jian-cheng Wang , Jie Su

The ability to make meaningful comparisons between theoretical and observational data of star-forming regions is key to understanding the star formation process. In this paper we test the performance of INDICATE, a new method to quantify…

Astrophysics of Galaxies · Physics 2021-12-08 George A. Blaylock-Squibbs , Richard J. Parker , Anne S. M. Buckner , Manuel Guedel

We have constructed a grid of about 10,000 spherically symmetric and plane-parallel models with the MARCS program, and make it available for public use. Parameter ranges are: Teff=2500 to 8000 K, log g =log(GM/R2)= -1 to 5 (cgs) with…

This book provides an introduction to the field of star formation at a level suitable for graduate students or advanced undergraduates in astronomy or physics. The structure of the book is as follows. The first two chapters begin with a…

Astrophysics of Galaxies · Physics 2016-12-09 Mark R. Krumholz