... Special Relativistic Simulations of Magneto-driven Jet from Core-Collapse Supernovae . We performed 2.5 dimensional magneto-hydro dynamical simulation of core-collapse supernovae. From the observational fact, it is probable that gamma-ray bursts and core-collapse supernovae have same origin.And the very collimated jet is preferable to explain the light curve of their afterglow. ... One is neutrino pair annihilation and another is magneto-hydrodynamical process. ...

... Future seminars . ... Special Relativistic Simulations of Magneto-driven Jet from Core-Collapse Supernovae " . ... We performed 2.5 dimensional magneto-hydro dynamical simulation of core-collapse supernovae. ... How this collimated jet is produced due to the process of core-collapse of massive star?There are two main energy-sources for the explosion. ... Since the previous works are performed separately at each stage such as core-collapse and jet-propagation, many uncertainty remains in each stage. ...

In 2011 the Nobel Prize in Physics was awarded "for the discovery of the accelerating expansion of the Universe through observations of distant supernovae". These Type Ia supernovae (SNe Ia) are also the dominant contributor to iron-group nucleosynthesis and leading candidates for the elusive sites of high energy cosmic rays, the p-process isotopes, and the positrons responsible for the 511 keV annihilation signal in our Galaxy. ...

. -!> download . Left: Consequtive explosion of 20 supernovae during 30 Myr. Right: Single hypernova (GRB) explosion with the total energy equivalent to 20 supernovae. The simulation was performed using a 2D Eulerian hydro code. The animation was done using IDL. -!>

... Staff . ... Cosmic dust has been observed both in emission and extinction everywhere in our Galaxy as well as in many other galaxies. ... Dust grains are classically thought to form in the winds of Asymptotic Giant Branch (AGB) stars. However, nowadays there is increasing observational evidence for notable dust formation in Supernovae (SNe). ... Hence the observed dust mass of 0.7вИТ0.9M вКЩ in this source can be safely considered as indicative of the mass of freshly formed dust in SN ejecta. ...

... Models of central engines (1) Potential of disk accretion onto stellar mass black holes: disk binding energy: thin disk life time: - accreted mass - disk outer radius - gravitational radius - Shakura­Sunyaev parameter Ultra-dense Hyper-Eddington neutrino cooled disks !! ... 1989); Neutron star + Neutron star Neutron star + Black hole White dwarf + Black hole Black hole + compact disk Burst duration: 0.1s ­ 1.0s Released binding energy: (1.2) Collapsars­ origin of long duration GRBs? ...

... Most people that are interested in supernovae use whatever telescopes they can get access to, but researchers at certain colleges and universities are able to access specialized telescopes like NASA?s Chandra X-ray Observatory . It?s a telescope that orbits the Earth and that has a specialized purpose of being able to observe X-ray emissions from supernovae, clustered galaxies and the materials around black holes. ... super@supernovae.net . ... Copyright x000A9; 2016 Supernovae.net ...

... Bojan Nikolic web pages (r. 329) . ALMA . We present a framework for modelling atmospheric phase errors and their correction by both the fast-switching and water vapour radiometeric techniques. ... We use this framework to simulate relative point source sensitivity and effective resolution for a range of atmospheric conditions, with and without phase correction. ... Published as ALMA Memo #582. ... Simulating Atmospheric Phase Errors, Phase Correction and the Impact on ALMA Science . ...

Astronomy Picture of the Day . ... Consider this "star in a box". Of course, the box is actually a computational box consisting of a three dimensional grid of points, and the star is a virtual one whose physical properties and internal dynamics are numerically simulated at the points on the grid. ... This picture is a movie frame from a recent numerical simulation of a supergiant star with properties intended to approximate the real star Betelgeuse . ... U. Based on Astronomy Picture Of the Day . ...

... Subaru Telescope reveals 3-D structure of supernovae . Research supports a clumpy 3-D scenario of supernova explosions rather than the widely accepted bipolar explosion scenario. ... Schematic drawing of the 3-D structure (left) and the image of SN 2009mi (right) captured with FOCAS on the Subaru Telescope. ... A research group from Japan used the Faint Object Camera and Spectrograph (FOCAS) on the Subaru Telescope to conduct observations that revealed a clumpy 3-D structure of supernovae. ...

STScI . WFIRST . Software/Simulation Tools by STScI . ... A complete repository of WFIRST-related software and simulation tools, overseen jointly by IPAC and STScI in the context of their WFIRST pre-formulation work, is maintained on IPAC's WFIRST website. ... The STIPS software (Space Telescope Image Product Simulator) allows calculation of simulated data for complex astronomical scenes, using instrument models and library catalogs for a range of stellar and/or galactic populations. ...

First ASKAP antenna on-site in Western Australia. Home page * Postdoc Ads * Proposal Publications Team Working Groups Meetings PHISCC Workshops Computing 3D Visualisation - wikis - WALLABY wiki ASKAP wiki - more - ASKAP ASKAP News ASKAP Computing - surveys - HIPASS . ... Monday - November 21 (09:00h - 17:30h) . ... Matthew Whiting (registered): "Simulating ASKAP observations" . ... Simon Mutch (registered): "Spatially decomposed galaxy properties in semi-analytic models" . ...

... The pinhole simulation program is a computationally and memory intensive task. ... A parallel version was developed instead, to enable distributed processing on a cluster of workstations. The program makes use of the Message Passing Interface (MPI) standard for parallel processing, implemented as an API (Application Programming Interface) to the Local Area Multicomputer (LAM) programming environment developed at the Ohio Supercomputer Center. ...

... Team . Observational . ... GRB mini-workshop 2006 . ... About the gamma-ray burst GRB 060218/SN 2006aj (z=0.033): the most recent observational results and about inevitable changes in "standard"/popular scenarios describing the phenomenon of the gamma-ray burst and explosion of a (massive) supernova. ... The BTA spectra of GRB 060218/SN 2006aj, as well as the BTA spectra of GRB 030329/SN 2003dh (z = 0.1685), turn out again to be among the very first spectra of two nearest GRB/SN-bursts. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Colin Johnston . ... Our Galaxy . ... To locate it, look along the imaginary line between the two end stars on the leading edge of the PloughтАЩs blade (Merak and Dubhe) and Polaris (the North Star), the galaxy M82 (also known as the Cigar Galaxy) along with its companion M81, lies just off this line about a third of the way between the Plough and Polaris. €а€аAs usual, the supernova is far brighter than its home galaxy, appearing as an extra star. ...

What happens to a star heavier than five solar masses? ... Stars about ten solar masses probably behave like our five solar mass star until they reach the end of core-helium burning. ... The Crab nebula was formed after a massive explosion ripped a star apart in 1054. ... Today, the glowing outer layers of the star are still rushing away from a tiny star in the centre. ... An incredible explosion rips through the outer layers of the star, releasing colossal amounts of energy in a supernova explosion. ...

... ESO Fellow . ... Before that I was a Postdoctoral Research Fellow at the University of Toronto with Marten van Kerkwijk . I finished my thesis, titled "Type Ia Supernovae: Progenitors and explosions" , in 2011 with Brian Schmidt at the Australian National University. My research focuses stars before, during and after explosion (exploding stars are also known as supernovae). ... The lack of hydrogen in Type I supernovae is a bit of a mystery. ...

... MAO main . ... The DRAGON globular cluster simulations: a million stars, black holes and gravitational waves . ... simulations of globular clusters with a million stars on the high-performance . ... of stars in globular clusters at unprecedented detail but also shed light into . the dark world of black holes. ... clusters of single and binary black holes. ... of a globular cluster. www.mpa-garching.mpg.de/328833/hl201603 . ... MAO/NASU, 27 Akademika Zabolotnoho St. 03680 Kyiv, Ukraine . ...

Next: Pilot Survey Up: Minutes of the 1st Previous: GALFA Surveys . ... The minimum integration time required to achieve a given mass sensitivity scales as distance to 4th power so the depth of survey increases only as t int to the 1/4. ... To predict what ALFA might see for several surveys, I have performed a set of simulations governed by the following: . ... ZOA survey: Assuming integration time of 300 sec, covering 10 (more than pulsar survey suggested), within the AO limits . ...

... A simulated HRI event list is generated from a set of user-specified source intensities, shapes and positions. ... Once this table has been created, qpsim is run to generate the qpoe file: Note that the ``bad attribute name `time''' message can be ignored, see help file. tt> qpsim Input source table file: source Reference QPOE file (xspatial$data/hdummy.qp): Root name for output files: simul ### Generating simulated data ### Beginning run of SIMEVT .. ... Skipping this source .. ...