Enstatite-rich Warm Debris Dust around HD165014

We present the Spitzer/Infrared Spectrograph spectrum of the main-sequence star HD165014, which is a warm (>~ 200 K) debris disk candidate discovered by the AKARI All-Sky Survey. The star possesses extremely large excess emission at wavelengths longer than 5 \mum. The detected flux densities at 10 and 20 \mum are ~ 10 and ~ 30 times larger than the predicted photospheric emission, respectively. The excess emission is attributable to the presence of circumstellar warm dust. The dust temperature is estimated as 300-750 K, corresponding to the distance of 0.7-4.4 AU from the central star. Significant fine-structured features are seen in the spectrum and the peak positions are in good agreement with those of crystalline enstatite. Features of crystalline forsterite are not significantly seen. HD165014 is the first debris disk sample that has enstatite as a dominant form of crystalline silicate rather than forsterite. Possible formation of enstatite dust from differentiated parent bodies is suggested according to the solar system analog. The detection of an enstatite-rich debris disk in the current study suggests the presence of large bodies and a variety of silicate dust processing in warm debris disks.Comment: 10 pages, 2 tables, 3 figures, accepted for publication in The Astrophysical Journal Letter

The twofold debris disk around HD 113766 A - Warm and cold dust as seen with VLTI/Midi and Herschel/Pacs

Warm debris disks are a sub-sample of the large population of debris disks, and display excess emission in the mid-IR. Around solar-type stars, very few objects show emission features in mid-IR spectroscopic observations, that are attributed to small, warm silicate dust grains. The origin of this warm dust can possibly be explained either by a collision between several bodies or by transport from an outer belt. We present and analyse new far-IR Herschel/Pacs observations, supplemented by ground-based data in the mid-IR (VLTI/Midi and VLT/Visir), for one of these rare systems: the 10-16 Myr old debris disk around HD 113766 A. We improve an existing model to account for these new observations, and better constrain the spatial distribution of the dust and its composition. We underline the limitations of SED modelling and the need for spatially resolved observations. We find that the system is best described by an inner disk located within the first AU, well constrained by the Midi data, and an outer disk located between 9-13 AU. In the inner dust belt, our previous finding of Fe-rich crystalline olivine grains still holds. We do not observe time variability of the emission features over at least a 8 years time span, in a environment subjected to strong radiation pressure. The time stability of the emission features indicates that {\mu}m-sized dust grains are constantly replenished from the same reservoir, with a possible depletion of sub-{\mu}m-sized grains. We suggest that the emission features may arise from multi-composition aggregates. We discuss possible scenarios concerning the origin of the warm dust. The compactness of the innermost regions as probed by Midi, as well as the dust composition, suggest that we are witnessing the outcomes of (at least) one collision between partially differentiated bodies, in an environment possibly rendered unstable by terrestrial planetary formation

AN ANALYSIS OF MAIN CHARACTERS IN WARM BODIES FILM USING JUNG THEORY OF ARCHETYPES

ABSTRACTThe collective unconscious concept of Jungian critic contains archetypes that are unique part of the theory of human personality. The archetypes can be found in R and Julie character in Warm Bodies film. The purpose of this study is to find out some archetypes based on Jungian critics that related to both characters. Analytical psychology theory by Carl G Jung was used as the main theory to find out the archetypes that related to both characters. This study is categorized as literary criticism since this study is emphasized on the analysis of literary work. The primary data of this study are collected from Jonathan Levine’s Warm Bodies film. The result of this study is showed there were six archetypes found in the film. They were persona, shadow, anima, animus, hero, and self-archetypes. Keywords: Jungian psychoanalysis, archetypes, Warm Bodies film ABSTRAKKonsep kumpulan bawah sadar dari kritik Jung mengandung pola dasar yang merupakan bagian yang unik dari teori kepribadian manusia. Pola dasar ini dapat di temukan di dalam karakter R dan Julie dalam film Warm Bodies. Tujuan dari penelitian ini untuk menemukan beberapa pola dasar bedasarkan dari kritik jung yang terkait dengan kedua karakter. Psikologi analisis teori dari Carl G Jung digunakan sebagai teori utama untuk menemukan pola dasar yang terkait dengan kedua karakter. Penelitian ini di kategorikan sebagai kritik sastra sejak penelitian ini menekankan pada Analisa dari kerja sastra. Data utama dari penelitian ini di kumpulkan dari film Jonathan levine Warm Bodies. Hasil dari penelitian ini menunjukkan bahwa ada 6 pola dasar yang ditemukan di dalam film. 6 pola dasar itu adalah persona, shadow, anima, animus, hero, dan pola dasar self. Kata kunci : psikoanalisis Jung, pola dasar, film Warm Bodie

Common Warm Dust Temperatures Around Main-sequence Stars

We compare the properties of warm dust emission from a sample of main-sequence A-type stars (B8-A7) to those of dust around solar-type stars (F5-K0) with similar Spitzer Space Telescope Infrared Spectrograph/MIPS data and similar ages. Both samples include stars with sources with infrared spectral energy distributions that show evidence of multiple components. Over the range of stellar types considered, we obtain nearly the same characteristic dust temperatures (~190 K and ~60 K for the inner and outer dust components, respectively)—slightly above the ice evaporation temperature for the inner belts. The warm inner dust temperature is readily explained if populations of small grains are being released by sublimation of ice from icy planetesimals. Evaporation of low-eccentricity icy bodies at ~150 K can deposit particles into an inner/warm belt, where the small grains are heated to T_(dust)~ 190 K. Alternatively, enhanced collisional processing of an asteroid belt-like system of parent planetesimals just interior to the snow line may account for the observed uniformity in dust temperature. The similarity in temperature of the warmer dust across our B8-K0 stellar sample strongly suggests that dust-producing planetesimals are not found at similar radial locations around all stars, but that dust production is favored at a characteristic temperature horizon

ANIMA AND ANIMUS PORTRAYED BY R AND JULIE IN WARM BODIES FILM

This study analyzes anima and animus portrayed by R and Julie in Warm Bodies film. The aims of this study is to analyze the charateristics of Anima and Animus portrayed by the main characters in Warm Bodies film. This study uses Carl Jung’s Analytical Psychology theory. The method used in this study was descriptive qualitative. Warm Bodies film was the primary data was taken in the form of the monologues and the dialogues in the film. The secondary data were taken from the e-books, e-journals, essays, articles, and website. Morever, watching the film, reading the scripts of the film, identifying the data, classifying the data, and reducing the data were the processes of the data collecting method. The last was data analyzing supported by the attachment of appendices and related theory descriptively. This study concludes two points. First, there are the characteristics of anima described by R. He has the characteristic of feminine are symphatetic, moody, vain, naive and emphatic. Second, there are the characteristics of animus described by Julie. She has the characteristic of masculine are aggressive, defends own self, brave and strong. The main characters show how the characteristics of anima and animus described by them in Warm Bodies film. Thus, they were a romantic couple as humans with the characteristics of feminine and masculine of both. Although, these two characters have anima and animus, R is still dominant in their relationship.

Close Binaries with Infrared Excess: Destroyers of Worlds?

We present the results of a Spitzer photometric investigation into the IR excesses of close binary systems. In a sample of 10 objects, excesses in IRAC and MIPS24 bands implying the presence of warm dust are found for 3. For 2 objects we do not find excesses reported in earlier IRAS studies. We discuss the results in the context of the scenario suggested by Rhee and co-workers, in which warm dust is continuously created by destructive collisions between planetary bodies. A simple numerical model for the steady-state distribution of dust in one IR excess system shows a central clearing of radius 0.22 AU caused by dynamical perturbations from the binary star. This is consistent with the size of the central clearing derived from the Spitzer spectral energy distribution. We conclude that close binaries could be efficient "destroyers of worlds", lead to destabilize the orbits of their planetary progeny by magnetically-driven angular momentum loss and secular shrinkage of the binary separation.Comment: Accepted by The Astrophysical Journa