Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Dinnbier, František"'
Unresolved binaries have a strong influence on the observed parameters of stellar clusters (SCs). We quantify this influence and compute the resulting mass underestimates and stellar mass function (MF). N-body simulations of realistic SCs were used t
Externí odkaz:
http://arxiv.org/abs/2410.12932
Publikováno v:
A&A 690, A385 (2024)
Classical Cepheid variable stars provide a unique probe to binary evolution in intermediate-mass stars over the course of several tens to hundreds of Myr. We studied the binary and multiple properties of Cepheids, assuming that all mid-B stars form i
Externí odkaz:
http://arxiv.org/abs/2409.07530
Publikováno v:
A&A 660, A61 (2022)
Some of the youngest stars (age $\lesssim 10$ Myr) are clustered, while many others are observed scattered throughout star forming regions or in complete isolation. It has been intensively debated whether the scattered or isolated stars originate in
Externí odkaz:
http://arxiv.org/abs/2201.06582
Publikováno v:
A&A 659, A169 (2022)
We investigate the occurrence of classical (type-I) Cepheid variable stars (henceforth: Cepheids) in dynamically evolving star clusters from birth to an age of approximately 300 Myr. The clusters are modelled by the Aarseth code nbody6, and they feat
Externí odkaz:
http://arxiv.org/abs/2112.09156
The most accurate current methods for determining the ages of open star clusters, stellar associations and stellar streams are based on isochrone fitting or the lithium depletion boundary. We propose another method for dating these objects based on t
Externí odkaz:
http://arxiv.org/abs/2112.03940
Tree-based solvers for adaptive mesh refinement code FLASH -- II: radiation transport module TreeRay
Autor:
Wünsch, Richard, Walch, Stefanie, Dinnbier, František, Seifried, Daniel, Haid, Sebastian, Klepitko, Andre, Whitworth, Anthony P., Palouš, Jan
The treatment of radiative transfer with multiple radiation sources is a critical challenge in simulations of star formation and the interstellar medium. In this paper we present the novel TreeRay method for solving general radiative transfer problem
Externí odkaz:
http://arxiv.org/abs/2105.09644
Autor:
Rathjen, Tim-Eric, Naab, Thorsten, Girichidis, Philipp, Walch, Stefanie, Wünsch, Richard, Dinnbier, František, Seifried, Daniel, Klessen, Ralf S., Glover, Simon C. O.
We present simulations of the multi-phase interstellar medium (ISM) at solar neighbourhood conditions including thermal and non-thermal ISM processes, star cluster formation, and feedback from massive stars: stellar winds, hydrogen ionising radiation
Externí odkaz:
http://arxiv.org/abs/2103.14128
Autor:
Pang, Xiaoying, Li, Yuqian, Yu, Zeqiu, Tang, Shih-Yun, Dinnbier, František, Kroupa, Pavel, Pasquato, Mario, Kouwenhoven, M. B. N.
We analyze the 3D morphology and kinematics of 13 open clusters (OCs) located within 500 pc of the Sun, using Gaia EDR3 and kinematic data from literature. Members of OCs are identified using the unsupervised machine learning method StarGO, using 5D
Externí odkaz:
http://arxiv.org/abs/2102.10508
Autor:
Dinnbier, František, Kroupa, Pavel
Publikováno v:
A&A 640, A85 (2020)
We study the formation and evolution of the tidal tail released from a young Pleiades-like star cluster, due to expulsion of primordial gas in a realistic gravitational field of the Galaxy. The tidal tails (as well as clusters) are integrated from th
Externí odkaz:
http://arxiv.org/abs/2007.00036
Autor:
Dinnbier, František, Kroupa, Pavel
Publikováno v:
A&A 640, A84 (2020)
Star clusters form out of the densest parts of infrared dark clouds. The emergence of massive stars expels the residual gas, which has not formed stars yet. Gas expulsion lowers the gravitational potential of the embedded cluster, unbinding many of t
Externí odkaz:
http://arxiv.org/abs/2006.14087