Results 111 to 120 of about 50,898 (280)
The minimum-mass extrasolar nebula: in situ formation of close-in super-Earths [PDF]
, 2012 Close-in super-Earths, with radii R = 2-5 R_Earth and orbital periods P < 100 days, orbit more than half, and perhaps nearly all Sun-like stars in the universe.
E. Chiang, G. Laughlin
semanticscholar +1 more source
Differential Diffusion: Giving Each Pixel Its Strength
Computer Graphics Forum, EarlyView.Abstract Diffusion models have revolutionized image generation and editing, producing state‐of‐the‐art results in conditioned and unconditioned image synthesis. While current techniques enable user control over the degree of change in an image edit, the controllability is limited to global changes over an entire edited region.
Eran Levin, Ohad Fried
wiley +1 more source
Evidence for Magnetically‐Driven Accretion in the Distal Solar System
AGU AdvancesPaleomagnetic measurements of meteorites indicate that magnetic fields existed in the inner solar nebula capable of driving accretion at rates similar to those observed for young stellar objects with protoplanetary disks.
Elias N. Mansbach +11 more
doaj +1 more source
PHL 932: when is a planetary nebula not a planetary nebula? [PDF]
, 2009 The emission nebula around the subdwarf B (sdB) star PHL 932 is currently classified as a planetary nebula (PN) in the literature. Based on a large body of multi-wavelength data, both new and previously published, we show here that this low-excitation nebula is in fact a small Stromgren sphere (HII region) in the interstellar medium around this star ...
arxiv +1 more source
Bursts of the Crab Nebula gamma-ray emission at high and ultra-high energies
EPJ Web of Conferences, 2017 Characteristics of the flares of gamma rays detected from the Crab Nebula by the AGILE and Fermi-LAT satellite instruments are compared with those of a gamma ray burst recorded by several air shower arrays on February 23, 1989 and with one recent ...
Lidvansky A.S.
doaj +2 more sources
Analisis Teknik-Teknik Keamanan Pada Future Cloud Computing vs Current Cloud Computing: Survey Paper
Jurnal Teknologi dan Sistem Informasi, 2016 Cloud computing adalah salah satu dari teknologi jaringan yang sedang berkembang pesat saat ini, hal ini dikarenakan cloud computing memiliki kelebihan dapat meningkatkan fleksibilitas dan kapabilitas dari proses komputer secara dinamis tanpa perlu ...
Beny Nugraha
doaj +1 more source
Pulsar Wind Nebulae with Thick Toroidal Structure [PDF]
, 2011 We investigate a class of pulsar wind nebulae that show synchrotron emission from a thick toroidal structure. The best studied such object is the small radio and X-ray nebula around the Vela pulsar, which can be interpreted as the result of interaction of a mildly supersonic inward flow with the recent pulsar wind.
arxiv +1 more source
CHEMODYNAMICAL DEUTERIUM FRACTIONATION IN THE EARLY SOLAR NEBULA: THE ORIGIN OF WATER ON EARTH AND IN ASTEROIDS AND COMETS [PDF]
, 2014 Formation and evolution of water in the solar system and the origin of water on Earth constitute one of the most interesting questions in astronomy. The prevailing hypothesis for the origin of water on Earth is by delivery through water-rich small solar ...
T. Albertsson +5 more
semanticscholar +1 more source
Anticorrelation Between Flux and Photon Index of Hard-X-Ray Emission from the Crab
The Astrophysical JournalUsing Swift Burst Alert Telescope event-mode data during gamma-ray burst occurrences, we conduct spectral analysis for the Crab system. From 38 good observations, which span a period of 18 yr from 2006 to 2023, we find that the Crab’s X-ray flux not only
Koothodil Abhijith Augustine +1 more
doaj +1 more source
The Web of Micro-Structures in IC 4593
Galaxies, 2020 In addition to large-scale structures, planetary nebulae (PNe) show small-scale structures that emit mainly in low-ionization species such as [N ii], [S ii], [O ii], and [O i], known as LISs.
M. Belén Mari +2 more
doaj +1 more source