Using Intermediate-Luminosity Optical Transients (ILOTs) to reveal extended extra-solar Kuiper belt objects

Bear, Ealeal; Soker, Noam

doi:10.1088/1674-4527/16/7/114

Cited by 2 publications

(1 citation statement)

References 88 publications

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“…2 shows that reaction rate cross sections 𝑁 𝐴 〈𝜎𝑣〉 depends from initial concentration of the plasma components in pre detonation time. In Bear & Soker (2016) considered possibilities the detonation of the He components, and after this indignation of the hydrogen layers. From this scenario it becomes clear that the energy of the explosion is limited not only…”

Section: P-p-detonation and Reaction Kineticsmentioning

confidence: 99%

The POSITRONE Γ-Spectroscopy OF SIMBIONIC SYSTEMS

Doikov

2022

OAP

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The γ-spectroscopy of rapid processes in space and Earth atmospheres we considered in this paper. One of considered object is AM Her types cataclysmic systems in soft γ-ray spectra. We calculated intensity of annihilation line who indicates the p-p thermonuclear explosions in a surface of the White Dwarfs (therefore WD). In the presented results we used, that the p-p detonation in degenerate plasma produce positrons. We confirmed that the formed annihilation γ-quants with energy 0.511 MeV is the suitable diagnostic possibility to study the effectiveness of thermonuclear reaction channels during such explosions. These results show the reason for the lack of registration of γ- flares in other types of cataclysmic variables. For example, in this paper considered systems with classical accretion disks named how Periodical Novae. Because these explosion is rare and have specific in geometrical and physical conditions for him monitoring with other strategy of observation. In Earth atmosphere tame scale of formation of secondary positrons is same. We showed, that annihilation of positrons occurs in near Earth surface zone. In this case observatories based in height reaching 2000 and more meters are important, it is advisable to planning the placement of this kind of equipment. It is confirmed, that presented perovskite detectors have the necessary sensitivity and universal spectral sensitivity and the study and modeling of interaction processes allows you to set the operating modes of the interfaces in the monitoring modes of observations. In presented paper has been confirmed, that perovskite materials in form of binary detectors enables simultaneous observations of hard radiation and optical quanta. In this cases observation of CR, micro meteors and other rapid objects in Earth atmosphere greatly expands the possibilities of their study.

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Section: P-p-detonation and Reaction Kineticsmentioning

confidence: 99%

The POSITRONE Γ-Spectroscopy OF SIMBIONIC SYSTEMS

Doikov

2022

OAP

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Constraining planet formation around 6–8 M⊙ stars

Veras

Tremblay

Hermes

et al. 2020

Monthly Notices of the Royal Astronomical Society

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Identifying planets around O-type and B-type stars is inherently difficult; the most massive known planet host has a mass of only about 3M ⊙ . However, planetary systems which survive the transformation of their host stars into white dwarfs can be detected via photospheric trace metals, circumstellar dusty and gaseous discs, and transits of planetary debris crossing our line-of-sight. These signatures offer the potential to explore the efficiency of planet formation for host stars with masses up to the corecollapse boundary at ≈ 8M ⊙ , a mass regime rarely investigated in planet formation theory. Here, we establish limits on where both major and minor planets must reside around ≈ 6M ⊙ − 8M ⊙ stars in order to survive into the white dwarf phase. For this mass range, we find that intact terrestrial or giant planets need to leave the main sequence beyond approximate minimum star-planet separations of respectively about 3 and 6 au. In these systems, rubble pile minor planets of radii 10, 1.0, and 0.1 km would have been shorn apart by giant branch radiative YORP spin-up if they formed and remained within, respectively, tens, hundreds and thousands of au. These boundary values would help distinguish the nature of the progenitor of metal-pollution in white dwarf atmospheres. We find that planet formation around the highest mass white dwarf progenitors may be feasible, and hence encourage both dedicated planet formation investigations for these systems and spectroscopic analyses of the highest mass white dwarfs.

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Using Intermediate-Luminosity Optical Transients (ILOTs) to reveal extended extra-solar Kuiper belt objects

Cited by 2 publications

References 88 publications

The POSITRONE Γ-Spectroscopy OF SIMBIONIC SYSTEMS

The POSITRONE Γ-Spectroscopy OF SIMBIONIC SYSTEMS

Constraining planet formation around 6–8 M⊙ stars

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