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We use photometry from the DECam Legacy Survey to detect candidate tidal tails extending ~5 deg on either side of the Palomar 13 globular cluster. The tails are aligned with the proper motion of Palomar 13 and are consistent with its old,…

Astrophysics of Galaxies · Physics 2020-11-11 Nora Shipp , Adrian Price-Whelan , Kiyan Tavangar , Cecilia Mateu , Alex Drlica-Wagner

Dynamical friction and tidal disruption are effective mechanisms of evolution of globular cluster systems, especially in non-axysimmetric galaxies with a central compact nucleus. With a semi-analytical approach based on the knowledge of the…

Astrophysics · Physics 2016-08-30 R. Capuzzo-Dolcetta , A. Tesseri

Most formation scenarios of globular clusters assume a molecular cloud as the progenitor of the stellar system. However, it is still unclear, how this cloud is transformed into a star cluster, i.e. how the destructive processes related to…

Astrophysics · Physics 2009-11-07 Christian Theis

In a series of two papers, we test the primordial scenario of globular cluster formation using results of high-resolutions N-body simulations. In this first paper we study the initial relaxation of a stellar core inside a live dark matter…

Astrophysics · Physics 2009-11-10 Sergey Mashchenko , Alison Sills

We present our study of the 2-D structures of the tidal tails associated with 20 galactic globular clusters, structures obtained by using the wavelet transform to detect weak structures at large scale and filter the strong background noise…

Astrophysics · Physics 2009-10-31 Georges Meylan , Stephane Leon , Francoise Combes

We present an end-to-end, two-phase model for the origin of globular clusters (GCs). In the model, populations of stellar clusters form in the high-pressure discs of high-redshift ($z>2$) galaxies (a rapid-disruption phase due to tidal…

Astrophysics of Galaxies · Physics 2015-10-14 J. M. Diederik Kruijssen

Using a cosmological N-body numerical simulation of the formation of a galaxy cluster- sized halo, we analyze the temporal evolution of its globular cluster population. We follow the dynamical evolution of 38 galactic dark matter halos…

Astrophysics of Galaxies · Physics 2015-05-22 Felipe Ramos , Valeria Coenda , Hernán Muriel , Mario Abadi

Close encounters between neutron stars and main-sequence stars occur in globular clusters and may lead to various outcomes. Here we study encounters resulting in tidal disruption of the star. Using $N$-body models, we predict the typical…

High Energy Astrophysical Phenomena · Physics 2022-07-27 Kyle Kremer , Claire S. Ye , Fulya Kıroğlu , James C. Lombardi , Scott M. Ransom , Frederic A. Rasio

Context. Open clusters that emerged from the star forming regions as gravitationally bound structures are subjected to star evaporation, ejection, and tidal forces throughout the rest of their lives. Consequently they form tidal tails that…

Astrophysics of Galaxies · Physics 2024-10-30 Janez Kos

Though it is generally assumed that massive molecular clouds are the progenitors of globular clusters, their detailed formation mechanism is still unclear. Standard scenarios based on the collapse of a smooth matter distribution suffer from…

Astrophysics · Physics 2007-05-23 Christian Theis

Tidal structures around globular clusters provide valuable insights into cluster evolution and the hierarchical assembly of the Milky Way. Using wide-field imaging data from the DESI Legacy Survey combined with a color-magnitude…

Astrophysics of Galaxies · Physics 2026-02-24 Shouzhi Wang , Jundan Nie , Biwei Jiang , Hao Tian , Chao Liu , Ying-Hua Zhang

After their birth a significant fraction of all stars pass through the tidal threshold (prah) of their cluster of origin into the classical tidal tails. The asymmetry between the number of stars in the leading and trailing tails tests…

Globular clusters provide a unique probe of galaxy formation and evolution. Here I briefly summarize the known observational properties of globular cluster systems. One re-occurring theme is that the globular cluster systems of spirals and…

Astrophysics · Physics 2007-05-23 Duncan A. Forbes

A recent model prediction claimed that exists a correlation between the formation scenarios of globular clusters, i.e., whether they formed in situ, or in dark matter halos that were accreted into the Milky way, with some properties of…

Astrophysics of Galaxies · Physics 2025-12-16 André E. Piatti

As globular clusters (GCs) orbit the Milky Way, their stars are tidally stripped forming tidal tails that follow the orbit of the clusters around the Galaxy. The morphology of these tails is complex and shows correlations with the phase of…

Tidal tails composed of stars should be unstable to the Jeans instability and this can cause them to look like beads on a string. The Jeans wavelength and tail diameter determine the wavelength and growth rate of the fastest growing…

Cosmology and Nongalactic Astrophysics · Physics 2010-02-26 Alice C. Quillen , Justin Comparetta

The tidal tails of stellar clusters provide an important tool for studying the birth conditions of the clusters and their evolution, coupling, and interaction with the Galactic potential. We present the N-body evolution of a Hyades-like…

Astrophysics of Galaxies · Physics 2021-03-24 Tereza Jerabkova , Henri M. J. Boffin , Giacomo Beccari , Guido de Marchi , Jos H. J. de Bruijne , Timo Prusti

We report the discovery of tidal tails around the high-latitude Galactic globular cluster NGC 5466 in Sloan Digital Sky Survey (SDSS) data. Neural networks are used to reconstruct the probability distribution of cluster stars in u,g,r,i and…

Astrophysics · Physics 2009-11-11 V. Belokurov , N. W. Evans , M. J. Irwin , P. C. Hewett , M. I. Wilkinson

We report the discovery of tidal tails around the Galactic globular cluster NGC 7492, based on the Data Release 1 of the Pan-STARRS 1 survey. The tails were detected with a version of the matched filter technique applied to the $(g-r,r)$…

Astrophysics of Galaxies · Physics 2017-05-31 Camila Navarrete , Vasily Belokurov , Sergey E. Koposov

We present a photometric analysis of the rich star cluster population in the tidal tails of NGC 6872. We find star clusters with ages between 1 - 100 Myr distributed in the tidal tails, while the tails themselves have an age of less than…

Astrophysics · Physics 2009-11-10 N. Bastian , M. Hempel , M. Kissler-Patig , N. Homeier , G. Trancho