scholarly journals Merging strangeon stars II: the ejecta and light curves

2021 ◽  
Vol 21 (10) ◽  
pp. 250
Author(s):  
Xiao-Yu Lai ◽  
Cheng-Jun Xia ◽  
Yun-Wei Yu ◽  
Ren-Xin Xu
Keyword(s):  
Numerical Simulations ◽  
Equatorial Plane ◽  
The State ◽  
Light Curves ◽  
Compact Stars ◽  
Qualitative Description ◽  
Tidal Disruption ◽  
New Era ◽  
Hot Environment ◽  
Detailed Picture

Abstract The state of supranuclear matter in compact stars remains puzzling, and it is argued that pulsars could be strangeon stars. The consequences of merging double strangeon stars are worth exploring, especially in the new era of multi-messenger astronomy. To develop the “strangeon kilonova” scenario proposed in Paper I, we make a qualitative description about the evolution of ejecta and light curves for merging double strangeon stars. In the hot environment of the merger, the strangeon nuggets ejected by tidal disruption and hydrodynamical squeezing would suffer from evaporation, in which process particles, such as strangeons, neutrons and protons, are emitted. Taking into account both the evaporation of strangeon nuggets and the decay of strangeons, most of the strangeon nuggets would turn into neutrons and protons, within dozens of milliseconds after being ejected. The evaporation rates of different particles depend on temperature, and we find that the ejecta could end up with two components, with high and low opacity respectively. The high opacity component would be in the directions around the equatorial plane, and the low opacity component would be in a broad range of angular directions. The bolometric light curves show that the spin-down power of the long-lived remnant would account for the whole emission of kilonova AT2017gfo associated with GW170817, if the total ejected mass ∼ 10−3 M ⊙. The detailed picture of merging double strangeon stars is expected to be tested by future numerical simulations.

Politični položaj na Slovenskem leta 1919

2020 ◽  
Vol 20 (2020) (2) ◽  
pp. 359-394
Author(s):  
Jurij Perovšek
Keyword(s):  
State Government ◽  
The State ◽  
The Political ◽  
Liberal Party ◽  
New Era ◽  
Party Organisation ◽  
Western Border ◽  
Historical Phenomenon ◽  
First Time ◽  
Similar Development

For Slovenes in the Kingdom of the Serbs, Croats and Slovenes the year 1919 represented the final step to a new political beginning. With the end of the united all-Slovene liberal party organisation and the formation of separate liberal parties, the political party life faced a new era. Similar development was showing also in the Marxist camp. The Catholic camp was united. For the first time, Slovenes from all political camps took part in the state government politics and parliament work. They faced the diminishing of the independence, which was gained in the State of Slovenes, Croats and Serbs, and the mutual fight for its preservation or abolition. This was the beginning of national-political separations in the later Yugoslav state. The year 1919 was characterized also by the establishment of the Slovene university and early occurrences of social discontent. A declaration about the new historical phenomenon – Bolshevism, had to be made. While the region of Prekmurje was integrated to the new state, the questions of the Western border and the situation with Carinthia were not resolved. For the Slovene history, the year 1919 presents a multi-transitional year.

Cicero and Milo

1974 ◽  
Vol 64 ◽  
pp. 62-78 ◽  
Author(s):  
A. W. Lintott
Keyword(s):  
Civil War ◽  
Rule Of Law ◽  
The State ◽  
The Political ◽  
New Era ◽  
The Rule Of Law ◽  
Political Position ◽  
The Republic ◽  
Political Realignment ◽  
Political Scene

The battle of Bovillae on 18th January, 52 B.C., which led to Clodius' death, was literally treated by Cicero in a letter to Atticus as the beginning of a new era—he dated the letter by it, although over a year had elapsed. It is difficult to exaggerate the relief it afforded him from fear and humiliation for a few precious years before civil war put him once more in jeopardy. At one stroke Cicero lost his chief inimicus and the Republic lost a hostis and pestis. Moreover, the turmoil led to a political realignment for which Cicero had been striving for the last ten years—a reconciliation between the boni and Pompey, as a result of which Pompey was commissioned to put the state to rights. Cicero's behaviour in this context, especially his return to the centre of the political scene, is, one would have thought, of capital importance to the biographer of Cicero. Yet two recent English biographies have but briefly touched on the topic. It is true that, in the background of Cicero's personal drama, Caesar and Pompey were taking up positions which, as events turned out, would lead to the collapse of the Republic. However, Cicero and Milo were not to know this, nor were their opponents; friendly cooperation between the two super-politicians apparently was continuing. Politicians on all sides were still aiming to secure power and honour through the traditional Republican magistracies, and in this pursuit were prepared to use the odd mixture of violence, bribery and insistence on the strict letter of the constitution, which was becoming a popular recipe. In retrospect their obsession with the customary organs of power has a certain irony. Yet it is a testimony to the political atmosphere then. Their manoeuvres are also important because both the instability caused by the violence of Clodius and Milo, and the eventual confidence in the rule of law established under Pompey's protection, helped to determine the political position of the boni associated with Pompey in 49 B.C. Cicero's relationship with Milo is at first sight one of the more puzzling aspects of his career. What had they in common, except that Milo, like most late Republican politicians, was at one time associated with Pompey? Properly interpreted, however, this relationship may not only illuminate Cicero's own attitudes but illustrate the character of the last years of Republican politics.

Data for Alabama Taxation and Changing Discourse from Reconstruction to Redemption

2021 ◽  
Author(s):  
Kasey Hendricks
Keyword(s):  
Civil Rights ◽  
Focal Point ◽  
Legal Framework ◽  
The State ◽  
Political Life ◽  
Political Debate ◽  
General Role ◽  
Proposition 13 ◽  
New Era ◽  
Princeton University

At their most basic level taxes carry, in the words of Schumpeter ([1918] 1991), “the thunder of history” (p. 101). They say something about the ever-changing structures of social, economic, and political life. Taxes offer a blueprint, in both symbolic and concrete terms, for uncovering the most fundamental arrangements in society – stratification included. The historical retellings captured within these data highlight the politics of taxation in Alabama from 1856 to 1901, including conflicts over whom money is expended upon as well as struggles over who carries their fair share of the tax burden. The selected timeline overlaps with the formation of five of six constitutions adopted in the State of Alabama, including 1861, 1865, 1868, 1875, and 1901. Having these years as the focal point makes for an especially meaningful case study, given how much these constitutional formations made the state a site for much political debate. These data contain 5,121 pages of periodicals from newspapers throughout the state, including: Alabama Sentinel, Alabama State Intelligencer, Alabama State Journal, Athens Herald, Daily Alabama Journal, Daily Confederation, Elyton Herald, Mobile Daily Tribune, Mobile Tribune, Mobile Weekly Tribune, Morning Herald, Nationalist, New Era, Observer, Tuscaloosa Observer, Tuskegee News, Universalist Herald, and Wilcox News and Pacificator. The contemporary relevance of these historical debates manifests in Alabama’s current constitution which was adopted in 1901. This constitution departs from well-established conventions of treating the document as a legal framework that specifies a general role of governance but is firm enough to protect the civil rights and liberties of the population. Instead, it stands more as a legislative document, or procedural straightjacket, that preempts through statutory material what regulatory action is possible by the state. These barriers included a refusal to establish a state board of education and enact a tax structure for local education in addition to debt and tax limitations that constrained government capacity more broadly. Prohibitive features like these are among the reasons that, by 2020, the 1901 Constitution has been amended nearly 1,000 times since its adoption. However, similar procedural barriers have been duplicated across the U.S. since (e.g., California’s Proposition 13 of 1978). Reference: Schumpeter, Joseph. [1918] 1991. “The Crisis of the Tax State.” Pp. 99-140 in The Economics and Sociology of Capitalism, edited by Richard Swedberg. Princeton University Press.

scholarly journals Constructing the Localization of Marxism in Teaching

2020 ◽  
Vol 9 (3) ◽  
pp. 69
Author(s):  
Chufang Hu
Keyword(s):  
Real Life ◽  
The State ◽  
Human Society ◽  
Chinese People ◽  
Specific Time ◽  
New Era ◽  
Time Specific ◽  
Chinese Modernization

<p>The production of any kind of theory has its special and specific environment. Therefore, although truth can be universally applicable, it also needs to be associated with specific time, specific events, and specific environments in the process of combining it with practice, so that the truth can fully spread its wisdom, guide real life, and guide human society to develop scientifically and orderly. Based on the premise of fully understanding Marxism, this paper explores the localization of constructing Marxism in teaching based on the state of China. It proposes that it is necessary to fully integrate China's actual national conditions and realize the localization of Marxism in teaching from Chinese modernization, popularization, <em>etc.</em> in the new era, so as to fully integrate Marxism in China's new era of socialist construction, so that the Chinese people can get a sense of happiness in the localization of Marxism beliefs.</p>

Epilogue

2018 ◽  
pp. 238-246
Author(s):  
Tricia Starks
Keyword(s):  
Public Health ◽  
Women Workers ◽  
World War I ◽  
Tobacco Use ◽  
The State ◽  
World War ◽  
New Era ◽  
Bolshevik Revolution ◽  
Disease Cluster ◽  
Tobacco Workers

The onset of World War I brought prohibition to alcohol but an explosion of tobacco use on the front lines, with even government sponsored tobacco collection drives, yet the Bolshevik Revolution, carried the downfall of the tobacco queens and ushered into power a new state with its own conflicted relationship to tobacco. The participation of the tobacco workers in the Kronstadt rebellion spurred attacks on women workers as backward and erased them from the record. The triumph of public health as a major policy point of the revolution closed one chapter on tobacco’s relationship to state and citizen and brought a new era for anti-tobacco advocacy although the continued situation of tobacco use within the disease cluster of neurasthenia did little to change opinions on therapy. Despite the avowed interest of the state, the anti-tobacco drive floundered as smoking became more popular, ubiquitous, and profitable.

Church and Patriarchate and the Limits of Americanization

2020 ◽  
pp. 228-246
Author(s):  
Alexander Kitroeff
Keyword(s):  
Twentieth Century ◽  
The State ◽  
The Other ◽  
Eastern Orthodox ◽  
Orthodox Church ◽  
Greek Orthodox ◽  
New Era ◽  
Greek Orthodox Church ◽  
The Church

This chapter focuses on the state of Greek Orthodoxy in America at the end of the twentieth century. It assesses whether the Church under Archbishop Iakovos overreached in its efforts to Americanize, which alienated the Ecumenical Patriarchate. It analyzes the patriarchate's intervention, which illustrated the administrative limits the Greek Orthodox Church in America faces in its efforts to assimilate. The chapter describes the patriarchate's ability to invoke the transnational character of Orthodoxy in the new era of globalization. It explores the end of the evolution of Greek Orthodoxy into some form of American Orthodoxy through its fusion with the other Eastern Orthodox Churches.

scholarly journals Relativistic accretion disc in tidal disruption events

2020 ◽  
Vol 496 (2) ◽  
pp. 1784-1802
Author(s):  
T Mageshwaran ◽  
Sudip Bhattacharyya
Keyword(s):  
Surface Density ◽  
Accretion Disc ◽  
Time Parameter ◽  
Light Curves ◽  
Initial Time ◽  
Late Time ◽  
Tidal Disruption ◽  
Bolometric Luminosity ◽  
Spectral Bands ◽  
Accretion Model

ABSTRACT We construct a time-dependent relativistic accretion model for tidal disruption events (TDEs) with an α-viscosity and the pressure dominated by gas pressure. We also include the mass fallback rate $\dot{M}_\mathrm{ f}$ for both full and partial disruption TDEs, and assume that the infalling debris forms a seed disc in time tc, which evolves due to the mass addition from the infalling debris and the mass-loss via accretion on to the black hole. Besides, we derive an explicit form for the disc height that depends on the angular momentum parameter in the disc. We show that the surface density of the disc increases at an initial time due to mass addition, and then decreases as the mass fallback rate decreases, which results in a decrease in the disc mass Md with a late-time evolution of Md ∝ t−1.05 and t−1.38 for full and partial disruption TDEs, respectively, where t is the time parameter. The bolometric luminosity L shows a rise and decline that follows a power law at late times given by L ∝ t−1.8 and t−2.3 for full and partial disruption TDEs, respectively. Our obtained luminosity declines faster than the luminosity inferred using $L \propto \dot{M}_\mathrm{ f}$. We also compute the light curves in various spectral bands.

scholarly journals Akar Historis Formalisasi Hukum Islam di Nusantara

2020 ◽  
Vol 5 (1) ◽  
pp. 14-27
Author(s):  
S. Sarkowi ◽  
Agus Susilo
Keyword(s):  
Liberal Democracy ◽  
Islamic Law ◽  
The State ◽  
Contextual Analysis ◽  
Philosophical Approach ◽  
New Era ◽  
Pros And Cons ◽  
Historical Methods

This study was focused on the historical roots of Islamic law’s formalization in Indonesia. It was started from the discourse of pros and cons on which took place since the Indonesian independence, to be exacted when nine committees of BPUPKI formulated the state principles. It was continued during the Liberal Democracy era of the Old Era, New Era until Reformation. The objective of this study was to construct the historical roots of Islamic law formalization using historical methods with the philosophical approach to the contextual analysis. The results of this study show that the historical roots were started from the success of the ulama and their role, until the establishment of Islamic empires, then Islamic law was legalized in the form of legislation by adopting legal books written by the scholars. There was strong legitimacy of the role of ulama, as well as the Sultan’s commitment to governing society through the judiciary and positions of qadhi, mufti and shaykh al-Islam which become the main pillars of the Islamic formalization practice in the sultanate government in Nusantara.

scholarly journals Variability of the Light Curves of the Close Binary GR Tauri

2002 ◽  
Vol 187 ◽  
pp. 337-338
Author(s):  
A. Yamasaki ◽  
M. Takeda ◽  
T. Yamauchi ◽  
G. Takada ◽  
S. Hattori
Keyword(s):  
Binary System ◽  
The State ◽  
Light Curves ◽  
Close Binary ◽  
Eclipsing Binary ◽  
Short Period ◽  
Contact Binary

AbstractVariability of the light curves of the short-period eclipsing binary system GR Tau (, almost-contact binary) is studied. It is found that GR Tau experienced both the state which is characterized by asymmetric light curves and the state characterized by symmetrical light curves.

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