Magnetized Particle Motion in γ-Spacetime in a Magnetic Field
, Farruh Atamurotov 2,6 and Bobomurat Ahmedov 2,3,5,*Round 1
Reviewer 1 Report
In this paper, the authors explored dynamics of magnetized particles around the compact object in γ–spacetime in the presence of external asymptotically uniform magnetic fields. What makes significant the manuscript is the discussion on the acceleration of the magnetized particles near the γ object and have shown that the center of mass energy of colliding magnetized
particles increases with the increase of γ parameter.
Author Response
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Author Response File: 
Author Response.pdf
Reviewer 2 Report
The manuscript concerns an investigation of magnetized test particles dynamics in \gamma spacetime endowed with an uniform magnetic field. The manusript represents a standard general relativistic 'technical' work. It does not bring any overwhelming physical results, however, it can be interesting for a particular class of readers. It is well written, clear and understandable. Before it is published, the authors should consider the following.
1) Look for and correct misprints, there are really lot of them (see e.g. Caption of Figure 8 - "relaton", Caption of Figure 9 - "spcesific", Page 16 - "electraomagnetic", Abstract - "The analysis of ... show -> shows ... parameter.", Page 2 - "Actually, in most cases astrophysical BH -> BHs are considered as rotating BHs ... .", Subsection 2.1. "Compact object immersed in a -> an uniform magnetic field", etc. ).
2) Clarify the Acknowledgement - "BT acknowledges the support from internal student grant SGS/12/2019 of SU.". Who is BT?
3) Size of labellings of axes differ too much. Compare, e.g. labelling in Figure 2 and in Figure 8. The size should be unified everywhere.
4) Keywords - what is Oi-object? The word does not appear in the manuscript.
5) Abstract - mix of past perfect tense and simple past tense - should be unified?
6) Abstract - "The analysis of ... show -> shows ... parameter".
4) I have noticed some papers that I would recommend to include into the reference list for a better contextualization. These are the following.
After reference [25]
- Tursunov, Stuchlík, Kološ, Dadhich, Ahmedov, Supermassive Black Holes as Possible Sources of Ultrahigh-energy Cosmic Rays, The Astrophysical Journal, Volume 895, Issue 1, id.14, 11 pp. (2020)
After reference [53]
- Stuchlík, Hledík, Truparova, Evolution of Kerr superspinars due to accretion counterrotating thin discs, Classical and Quantum Gravity, Volume 28, Issue 15, id. 155017 (2011).
- Stuchlík, Schee, Observational phenomena related to primordial Kerr superspinars ,Classical and Quantum Gravity, Volume 29, Issue 6, id. 065002 (2012).
- Stuchlík, Schee, Ultra-high-energy collisions in the superspinning Kerr geometry , Classical and Quantum Gravity, Volume 30, Issue 7, id. 075012 (2013).
After reference [86]
- Konoplya, Posada,Stuchlík, Zhidenko, Stable Schwarzschild stars as black-hole mimickers, Physical Review D, Volume 100, Issue 4, id.044027
- Ovalle, Posada, Stuchlík, Anisotropic ultracompact Schwarzschild star by gravitational decoupling,Classical and Quantum Gravity, Volume 36, Issue 20, article id. 205010 (2019).
Author Response
please see Attachment
Author Response File: Author Response.pdf
Reviewer 3 Report
This ms is devoted to the study of
dynamics of magnetized particles around the compact object
in g–spacetime in the presence of external asymptotically uniform magnetic field.
In my impression, the motivation for this study is not well-developed. Why such specific metric and such specific magnetic field? Where such effects maybe observed experimentally.
Other question is starting lagrangian. it is not even written so it is not clear what theory authors are talking about.
For instance, when there is non-minimal coupling of EM field with gravitation (see arXiv:0801.0954) the results will be changed qualitatively. At least, some short description of such situation may benefit the reader.
Author Response
please see Attachment
Author Response File: Author Response.pdf
Round 2
Reviewer 3 Report
sufficient revision
