English
Related papers

Related papers: Bisous model - detecting filamentary patterns in p…

200 papers

In the past decade filaments have been recognised as a major structural element of the interstellar medium, the densest of these filaments hosting the formation of most stars. In some star-forming molecular clouds converging networks of…

Detecting the large-scale structure of the Universe based on the galaxy distribution and characterising its components is of fundamental importance in astrophysics but is also a difficult task to achieve. Wide-area spectroscopic redshift…

Cosmology and Nongalactic Astrophysics · Physics 2020-09-30 Nicola Malavasi , Nabila Aghanim , Marian Douspis , Hideki Tanimura , Victor Bonjean

We present a new algorithm to detect inter-cluster galaxy filaments based upon the assumption that the orientations of constituent galaxies along such filaments are non-isotropic. We apply the algorithm to the 2dF Galaxy Redshift Survey…

Astrophysics · Physics 2009-11-10 Kevin A. Pimbblet

The discovery of the large-scale structure has transformed our view of galaxy formation and evolution. Filaments of the cosmic web provide key environments that channel the growth of structures. Guided by predictions from cosmological…

Astrophysics of Galaxies · Physics 2025-11-11 M. Mondelin , S. Codis , J-C. Cuillandre , C. Laigle , A. Boselli , K. Kraljic , C. Stone

We propose to apply an object point process to automatically delineate filaments of the large-scale structure in redshift catalogues. We illustrate the feasibility of the idea on an example of the recent 2dF Galaxy Redshift Survey, describe…

Astrophysics · Physics 2008-09-26 Radu S. Stoica , Vicent J. Martinez , Enn Saar

This paper introduces a new approach to analyzing spatial point data clustered along or around a system of curves or "fibres." Such data arise in catalogues of galaxy locations, recorded locations of earthquakes, aerial images of minefields…

Methodology · Statistics 2012-10-01 Bryony J. Hill , Wilfrid S. Kendall , Elke Thönnes

Filament identification became a key step to tackling fundamental problems in various fields of Astronomy. Nevertheless, existing filament identification algorithms are critically user-dependent and require individual parametrization. In…

Instrumentation and Methods for Astrophysics · Physics 2022-07-22 D. Alina , A. Shomanov , S. Baimukhametova

The standard cosmological model ($\Lambda$CDM) predicts the existence of the cosmic web: a distribution of matter into sheets and filaments connecting massive halos. However, observational evidence has been elusive due to the low surface…

Astrophysics of Galaxies · Physics 2020-04-29 Lydia M. Elias , Shy Genel , Amiel Sternberg , Julien Devriendt , Adrianne Slyz , Eli Visbal , Nicolas Bouché

We analyze the structure and connectivity of the distinct morphologies that define the Cosmic Web. With the help of our Multiscale Morphology Filter (MMF), we dissect the matter distribution of a cosmological $\Lambda$CDM N-body computer…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Miguel A. Aragon-Calvo , Rien van de Weygaert , Bernard J. T. Jones

In the theoretical framework of hierarchical structure formation, galaxy clusters evolve through continuous accretion and mergers of substructures. Cosmological simulations have revealed the best picture of the Universe as a 3-D filamentary…

Cosmology and Nongalactic Astrophysics · Physics 2024-01-18 Tejas Oak , Surajit Paul

We study biasing as a physical phenomenon by analysing power spectra (PS) and correlation functions (CF) of simulated galaxy samples and dark matter (DM) samples. We apply an algorithm based on the local densities of particles, $\rho$, to…

Cosmology and Nongalactic Astrophysics · Physics 2021-11-03 Jaan Einasto

A reliable extraction of filament data from microscopic images is of high interest in the analysis of acto-myosin structures as early morphological markers in mechanically guided differentiation of human mesenchymal stem cells and the…

Computer Vision and Pattern Recognition · Computer Science 2015-07-15 Benjamin Eltzner , Carina Wollnik , Carsten Gottschlich , Stephan Huckemann , Florian Rehfeldt

We search for and find fossil evidence that the distribution of the spin axes of galaxies in cosmic web filaments relative to their host filaments are not randomly distributed. This would indicate that the action of large scale tidal…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Bernard J. T. Jones , Rien van de Weygaert , Miguel A. Aragon-Calvo

The Cosmic Web is a complex network of filaments, walls and voids that represent the largest structures in the Universe. In this network, which is the direct result of structure formation, galaxy clusters occupy central positions as the…

Cosmology and Nongalactic Astrophysics · Physics 2020-02-05 Nicola Malavasi , Nabila Aghanim , Hideki Tanimura , Victor Bonjean , Marian Douspis

We trace the connectivity of the cosmic web as defined by haloes in the Planck-Millennium simulation using a persistence and Betti curve analysis. We normalise clustering up to the second-order correlation function, and use our systematic…

Cosmology and Nongalactic Astrophysics · Physics 2024-01-23 Raul Bermejo , Georg Wilding , Rien van de Weygaert , Bernard J. T. Jones , Gert Vegter , Konstantinos Efstathiou

The interstellar medium has a highly filamentary and hierarchical structure, which may play a significant role in star formation. A systematical study on the large-scale filaments towards their physical parameters, distribution, structures…

Astrophysics of Galaxies · Physics 2022-01-06 Yifei Ge , Ke Wang

High resolution surveys reveal that the interstellar medium in the Milky Way and nearby galaxies consists of interlinked hierarchies of filamentary structure and superbubbles extending from galactic to subpc scales. The characterization of…

Astrophysics of Galaxies · Physics 2025-08-20 Rachel Pillsworth , Erica Roscoe , Ralph E. Pudritz , Eric W. Koch

We have carried out a search for filamentary structures in the Taurus molecular cloud using $\rm^{13}CO$ line emission data from the FCRAO survey of $\rm \sim100 \, deg^2$. We have used the topological analysis tool, DisPerSe, and…

Solar and Stellar Astrophysics · Physics 2016-02-04 G. V. Panopoulou , K. Tassis , P. F. Goldsmith , M. H. Heyer

We present the first quantitative detection of large-scale filamentary structure at $z \simeq 0.7$ in the large cosmological volume probed by the VIMOS Public Extragalactic Redshift Survey (VIPERS). We use simulations to show the capability…

In this work, we identify and analyse the properties of cluster-cluster filaments within a cosmological simulation assuming that they are structures connecting maxima of the density field defined by dark matter halos with masses $M \, \ge…

Cosmology and Nongalactic Astrophysics · Physics 2020-11-25 Luis A. Pereyra , Mario A. Sgró , Manuel E. Merchán , Federico A. Stasyszyn , Dante J. Paz