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Related papers: Exploring the dynamical state of Galactic open clu…

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Using deep photometric data from WFC@INT and [email protected] we measure the outer number density profiles of 19 stellar clusters located in the inner region of the Milky Way halo (within a Galactocentric distance range of 10-30 kpc) in order to…

Stars are born within dense clumps of giant molecular clouds, constituting young stellar agglomerates known as embedded clusters, which only evolve into bound open clusters under special conditions. We statistically study all embedded…

Astrophysics of Galaxies · Physics 2015-06-17 Esteban F. E. Morales , Friedrich Wyrowski , Frederic Schuller , Karl M. Menten

We have investigated the 2-D stellar distribution in the outer parts of three nearby open clusters: NGC 2287 (=M41), NGC 2516, and NGC 2548 (=M48). Wide-field star counts have been performed in two colours on pairs of digitized ESO and SRC…

Astrophysics · Physics 2009-11-07 Gilles Bergond , Stephane Leon , Jean Guibert

Context: Star clusters, composed of stars born from the same molecular cloud, serve as invaluable natural laboratories for understanding the fundamental processes governing stellar formation and evolution. Aims: This study aims to…

Stellar rotation is a fundamental ingredient in shaping the evolution of stars and it can also be used to trace past stellar interactions. Yet, systematic studies of stellar rotation in large samples of stars belonging to different…

Context. The scale height of the spatial distribution of open clusters (OCs) in the Milky Way exhibits a well known increase with age which is usually interpreted as evidence for dynamical heating of the disc or of the disc having been…

Astrophysics of Galaxies · Physics 2025-02-05 Sandro Moreira , André Moitinho , André Silva , Duarte Almeida

The latest Gaia Data Release 3 provides an opportunity to expand the census of Galactic open clusters harboring classical Cepheid variables, thereby bolstering the cosmic distance scale. A comprehensive analysis yielded a total of 50…

Solar and Stellar Astrophysics · Physics 2022-11-30 C. J. Hao , Y. Xu , Z. Y. Wu , Z. H. Lin , S. B. Bian , Y. J. Li , D. J. Liu

We present a comprehensive UBVRI and Washington CT1T2 photometric analysis of seven catalogued open clusters, namely: Ruprecht 3, 9, 37, 74, 150, ESO 324-15 and 436-2. The multi-band photometric data sets in combination with 2MASS…

Astrophysics of Galaxies · Physics 2017-01-18 Andrés E. Piatti , Wilton S. Dias , Laura M. Sampedro

Globular cluster (GC) streams, debris of stars that tidally stripped from their progenitor GCs, have densities that correlate positively with the GC mass loss rate. In this work, we employ a novel particle spray algorithm that can…

Astrophysics of Galaxies · Physics 2025-01-30 Yingtian Chen , Hui Li , Oleg Y. Gnedin

Context: Unresolved binaries in star clusters can bias stellar and cluster mass estimates, making their proper treatment essential for studying cluster dynamics and evolution. Aims: We aim to develop a fast and robust framework for jointly…

While the influence of galaxy clusters on galaxy evolution is relatively well-understood, the impact of the dynamical states of these clusters is less clear. This paper series explores how the dynamical state of galaxy clusters affects…

Astrophysics of Galaxies · Physics 2025-01-08 S. Véliz Astudillo , E. R. Carrasco , J. L. Nilo Castellón , A. Zenteno , H. Cuevas

In order to understand the orbital history of Galactic halo objects, such as globular clusters, authors usually assume a static potential for our Galaxy with parameters that appear at the present-day. According to the standard paradigm of…

Astrophysics of Galaxies · Physics 2015-05-20 Hosein Haghi , Akram Hasani Zonoozi , Saeed Taghavi

Context: This research presents unsupervised machine learning and statistical methods to identify and analyze tidal tails in open star clusters using data from the Gaia DR3 catalog. Aims: We aim to identify member stars and to detect and…

Astrophysics of Galaxies · Physics 2026-01-14 Ira Sharma , Vikrant V. Jadhav , Annapurni Subramaniam , Henriette Wirth

The discovery of many giant planets in close-in orbits and the effect of planetary and stellar tides in their subsequent orbital decay have been extensively studied in the context of planetary formation and evolution theories. Planets…

Earth and Planetary Astrophysics · Physics 2019-11-28 Jaime A. Alvarado-Montes , Carolina García-Carmona

Stellar mass governs stellar evolution and the distribution of stellar masses plays a central role in the dynamical evolution of stellar clusters. Using high-precision astrometry and photometry from Gaia DR3, we investigate mass segregation…

Astrophysics of Galaxies · Physics 2026-05-27 Jeison Alfonso , Alejandro Garcia-Varela , Katherine Vieira

Context. Since the first publication of the Gaia catalogue a new view of our Galaxy has arrived. Its astrometric and photometric information has improved the precision of the physical parameters of open star clusters obtained from them.…

Astrophysics of Galaxies · Physics 2024-08-28 Jeison Alfonso , Alejandro García-Varela , Katherine Vieira

I analyse the projected density distribution of member stars over a wide area surrounding 18 Galactic globular clusters using the photometric and astrometric information provided by the second data release of the Gaia mission. A 5D mixture…

Astrophysics of Galaxies · Physics 2020-05-27 A. Sollima

The improvements in the precision of the published data in \textit{Gaia} EDR3 with respect to \textit{Gaia} DR2, particularly for parallaxes and proper motions, offer the opportunity to increase the number of known open clusters in the…

The gravitational interactions between the Milky Way and in-falling satellites offer a wealth of information about the formation and evolution of our Galaxy. In this paper, we explore the high-dimensionality of the GALAH DR3 plus Gaia eDR3…

Astrophysics of Galaxies · Physics 2023-07-12 Kris Youakim , Karin Lind , Iryna Kushniruk

We have studied the influence of an evolving gravitational potential of the Milky Way Galaxy on the orbital motion of 152 globular clusters with proper motions from the Gaia EDR3 catalogue and mean distances from Baumgardt and Vasiliev…

Astrophysics of Galaxies · Physics 2021-09-23 A. T. Bajkova , A. A. Smirnov , V. V. Bobylev