Suchergebnisse

FU Orionis objects are low-mass pre-main sequence stars characterized by dramatic outbursts several magnitudes in brightness. These outbursts are linked to episodic accretion events in which stars gain a significant portion of their mass. The physical processes behind these accretion events are not yet well understood. The archetypal FU Ori system, FU Orionis, is composed of two young stars with detected gas and dust emission. The continuum emitting regions have not been resolved until now. Here, we present 1.3 mm observations of the FU Ori binary system using the Atacama Large Millimeter/submillimeter Array. The disks are resolved at 40 mas resolution. Radiative transfer modeling shows that the emission from FU Ori north (primary) is consistent with a dust disk with a characteristic radius of similar to 11 au. The ratio between the major and minor axes shows that the inclination of the disk is similar to 37 degrees. FU Ori south is consistent with a dust disk of similar inclination and size. Assuming the binary orbit shares the same inclination angle as the disks, the deprojected distance between the north and south components is 06, i.e., similar to 250 au. Maps of (CO)-C-12 emission show a complex kinematic environment with signature disk rotation at the location of the northern component, and also (to a lesser extent) for FU Ori south. The revised disk geometry allows us to update FU Ori accretion models, yielding a stellar mass and mass accretion rate of FU Ori north of 0.6 M and 3.8 x 10(-5) M yr(-1), respectively. ; CONICYT-Gemini grant 32130007 CONICYT-Fondecyt Regular grant 1191934 Joint Committee of ESO Government of Chile Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT) CONICYT FONDECYT 1171246 1171624 Ministry of Science and Technology, Taiwan 108-2112-M-001-002-MY3 108-2923-M-001-006-MY3 Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT) CONICYT FONDECYT 3170680 Millennium Science Initiative (Chile) RC130007 Fondequip project EQM140101

The Complete Poetry of Du Fu presents a complete scholarly translation of Chinese literature alongside the original text in a critical edition. The English translation is more scholarly than vernacular Chinese translations, and it is compelled to address problems that even the best traditional commentaries overlook.The main body of the text is a facing page translation and critical edition of the earliest Song editions and other sources. For convenience the translations are arranged following the sequence in Qiu Zhao'an's Du shi xiangzhu (although Qiu's text is not followed). Basic footnotes are included when the translation needs clarification or supplement. Endnotes provide sources, textual notes, and a limited discussion of problem passages. A supplement references commonly used allusions, their sources, and where they can be found in the translation.Scholars know that there is scarcely a Du Fu poem whose interpretation is uncontested. The scholar may use this as a baseline to agree or disagree. Other readers can feel confident that this is a credible reading of the text within the tradition. A reader with a basic understanding of the language of Chinese poetry can use this to facilitate reading Du Fu, which can present problems for even the most learned reader.

In November 10th, 2019, Evo Morales, Bolivian president for the last 14 years, resigned to power after a long period of protests launched after the general elections (October 20th), the target of many fraud accusations. Bolivia was left in a difficult situation of power vacuum, which was filled by a constitutional succession, described by the press as a coup against democracy. It was indeed a coup? Using theory and historical analysis, this article tries to understand what happened in Bolivia and if it is accurate to fear about Bolivian democracy's existence. ; El 10 de noviembre de 2019, Evo Morales, presidente de Bolivia durante los últimos 14 años, entregaba su carta de renuncia después de un largo período de protestas iniciado después de las elecciones generales del 20 de octubre, atravesadas por acusaciones de fraude. Dejaba a Bolivia sumida en un vacío de poder que tardó dos días en ser llenado con la conformación de un gobierno transitoriodescrita por la prensa como un golpe de Estado a la democracia. ¿Fue un golpe? El presente artículo evalúa minuciosamente las dos argumentaciones, hace un seguimiento de los cambios de gobierno en Bolivia durante los últimos 87 años y cataloga los hechos ocurridos en 2019 desde una perspectiva comparada. El objetivo es tratar de etender si democracia boliviana está en agonía o restablecida y si las tendencias hacia la fascistización del país son una realidad o un mito.