Zobrazeno 1 - 10
of 258
pro vyhledávání: '"Quasi-star"'
Autor:
KONCA, Şükran
Publikováno v:
Volume: 9, Issue: 2 245-249
Konuralp Journal of Mathematics
Konuralp Journal of Mathematics
In this work, we consider weaker forms of some new types of star covering properties, star versions of quasi-Mengerness and related spaces. We discuss the relations of these properties with some other selective covering properties and investigate som
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=tubitakulakb::88f83a293c057e17071cb98b08711562
https://dergipark.org.tr/tr/pub/konuralpjournalmath/issue/31497/956585
https://dergipark.org.tr/tr/pub/konuralpjournalmath/issue/31497/956585
Autor:
Mohammad Mosakhani, Hassan Haghighi
Publikováno v:
Algebra Colloquium. 25:661-670
In this paper, the containment problem for the defining ideal of a special type of zero-dimensional subscheme of ℙ2, the so-called quasi star configuration, is investigated. Some sharp bounds for the resurgence of these types of ideals are given. A
Autor:
Reinhard Genzel
Publikováno v:
The Universe ISBN: 9783030673918
The article summarizes the observational evidence for the existence of massive black holes, as well as the current knowledge about their abundance, their mass and spin distributions, and their cosmic evolution within and together with their galactic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da13dc3794a8cd42a35ca5b2cdf6eff3
https://doi.org/10.1007/978-3-030-67392-5_3
https://doi.org/10.1007/978-3-030-67392-5_3
Autor:
Andrew C. Fabian, Ezequiel Treister, Michael Koss, Isabella Lamperti, Franz E. Bauer, Anna K. Weigel, Neil Gehrels, Claudio Ricci, Richard F. Mushotzky, Kyuseok Oh, Yanxia Xie, Stéphane Paltani, Benny Trakhtenbrot, Yoshihiro Ueda, Luis C. Ho, Kevin Schawinski
Publikováno v:
Nature, 549
The large majority of the accreting supermassive black holes in the Universe are obscured by large columns of gas and dust. The location and evolution of this obscuring material have been the subject of intense research in the past decades, and are s
Autor:
Prajval Shastri
Publikováno v:
Resonance. 22:237-244
Current technologies have enabled glimpses at the many facets of black holes, which we know to be plentiful in our cosmos. A panoramic view of the evidence for them is presented here across the large range of masses that they span.
Publikováno v:
Astronomy Reports. 61:47-52
Numerical simulations of the motions of stars in the gravitational fields of binary black holes with various component mass ratios have been carried out. Two models are considered: (1) the two-body problem with two fixed centers; (2) the general thre
Autor:
Hidenobu Yajima, Sadegh Khochfar
Publikováno v:
Yajima, H & Khochfar, S 2016, ' The role of stellar relaxation in the formation and evolution of the first massive black holes ', Monthly Notices of the Royal Astronomical Society, vol. 457, no. 3, pp. 2423-2432 . https://doi.org/10.1093/mnras/stw058
We present calculations on the formation of massive black holes with 10^5 Msun at z > 6 that can be the seeds of supermassive black holes at z > 6. Under the assumption of compact star cluster formation in merging galaxies, star clusters in haloes of
Autor:
Anatolii M. Cherepashchuk
Publikováno v:
Uspekhi Fizicheskih Nauk. 186:778-789
Publikováno v:
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings.
Publikováno v:
Physics of Atomic Nuclei. 78:387-393
Clusters of primordial black holes may cause the formation of quasars in the early Universe. In turn, radiation from these quasars may lead to the reionization of the Universe. However, the evaporation of primordial black holes via Hawking’s mechan