Zobrazeno 1 - 10
of 211
pro vyhledávání: '"Ćirković, M. M."'
Recent studies of Galactic evolution revealed that the dynamics of the stellar component might be one of the key factors when considering galactic habitability. We run an N-body simulation model of the Milky Way, which we evolve for 10 Gyr, to study
Externí odkaz:
http://arxiv.org/abs/2310.16227
The problem of the extent of habitable zones in different kinds of galaxies is one of the outstanding challenges for contemporary astrobiology. In the present study, we investigate habitability in a large sample of simulated galaxies from the Illustr
Externí odkaz:
http://arxiv.org/abs/1909.01742
Publikováno v:
MNRAS, 2016, Volume 459, Issue 4, Pp. 3512-3524
We present an isolated Milky Way-like simulation in GADGET2 N-body SPH code. The Galactic disk star formation rate (SFR) surface densities and stellar mass indicative of Solar neighbourhood are used as thresholds to model the distribution of stellar
Externí odkaz:
http://arxiv.org/abs/1604.01664
Autor:
Vukotić, B., Ćirković, M. M.
Publikováno v:
Orig. Life Evol. Biosph. 42 (2012) 347-371
Search for extraterrestrial life and intelligence constitutes one of the major endeavors in science, but has yet been quantitatively modeled only rarely and in a cursory and superficial fashion. We argue that probabilistic cellular automata (PCA) rep
Externí odkaz:
http://arxiv.org/abs/1206.3467
Autor:
Samurovic, S., Cirkovic, M. M.
Publikováno v:
Astron.Astrophys.488:873-877,2008
Context: Regarding the significant interest in both dark matter and the application of MOND to early-type galaxies, we investigate the MOND theory by comparing its predictions, for models of constant mass-to-light ratio, with observational data of th
Externí odkaz:
http://arxiv.org/abs/0811.0698
Autor:
Samurovic, S., Cirkovic, M. M.
In this paper we analyze the problem of the total mass and the total mass-to-light ratio of the early-type galaxy NGC 4649 (M60). We have used two independent techniques: the X-ray methodology which is based on the temperature of the X-ray halo of NG
Externí odkaz:
http://arxiv.org/abs/0811.0700
Autor:
Vukotic, B., Cirkovic, M. M.
We investigate the effects of correlated global regulation mechanisms, especially Galactic gamma-ray bursts (GRBs), on the temporal distribution of hypothetical inhabited planets, using simple Monte Carlo numerical experiments. Starting with recently
Externí odkaz:
http://arxiv.org/abs/0712.1508
Autor:
Dugic, M., Cirkovic, M. M.
We investigate the rate of operation of quantum "black boxes" ("oracles") and point out the possibility of performing an operation by a quantum "oracle" whose average energy equals zero. This counterintuitive result not only presents a generalization
Externí odkaz:
http://arxiv.org/abs/quant-ph/0210186
We study the ionizing sources in spiral galaxies and examine in more detail our Galaxy. Using Taylor & Cordes (1993) model we analyze the electron density in different parts of the Galaxy, and emphasize the still unsolved problems. Finally, we compar
Externí odkaz:
http://arxiv.org/abs/astro-ph/9808063
In this paper we present the ionization in the center of the Galaxy. We use Taylor & Cordes (1993) and Lazio & Cordes (1998) models to obtain the overall contribution of the Galactic center (GC) component to the total electron density. We also discus
Externí odkaz:
http://arxiv.org/abs/astro-ph/9808064