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Deep imaging suggests isolated galaxy forms stars without signs of past mergers

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  Using the Two-meter Twin Telescope (TTT3), Spanish astronomers have conducted deep optical imaging of an isolated dwarf galaxy known as NGC 6789. Results of the new observations, presented November 10 on the arXiv preprint server, shed more light on the star formation process in this galaxy. Isolated but forming stars Discovered in 1883, NGC 6789 is a blue compact dwarf (BCD) galaxy located some 12 million light years away in the Local Void-a region of space with far fewer galaxies than its surroundings. However, despite its extreme isolation, NGC 6789 shows recent central star formation activity. Previous observations of NGC 6789 have found that approximately 4% of its total stellar mass—about 100 million solar masses-formed within the past 600 million years. It turned out that the central star-forming region of this galaxy is embedded within an apparently undisturbed, redder elliptical outer structure. One question remains unanswered Therefore, what still baffles scientists is ...
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Density Quantum Neural Networks Boost Trainability & Performance

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  Training Efficiency in Quantum Machine Learning Density Quantum Neural Networks (density QNNs) represent a new approach to quantum machine learning (QML) model design, specifically addressing training efficiency. Unlike traditional parameterized quantum circuits (PQCs), density QNNs utilize mixtures of trainable unitaries – essentially weighted combinations of quantum operations. This framework leverages the Hastings-Campbell Mixing lemma, allowing similar expressivity to deeper circuits with shallower, more manageable constructions. Crucially, by employing “commuting-generator circuits”, researchers can efficiently extract gradients needed for training, a major hurdle in scaling QML. A key limitation of current QML methods is the gradient computation cost. The standard parameter-shift rule, while providing analytic gradients, requires evaluating ({\mathcal{O}}(N)) circuits for N parameters. This severely limits the size of trainable quantum circuits. Density QNNs aim to overcome...
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Solar Storms: Tech Disruptions Ahead!

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Solar Storms: Tech Disruptions Ahead! explores how powerful solar flares and coronal mass ejections from the Sun can disrupt satellites, GPS, communication networks, and power grids. This phenomenon highlights Earth’s vulnerability to space weather, urging advancements in monitoring systems and protective technologies to safeguard global infrastructure from electromagnetic disturbances. International Academic Awards  Nomination Link: https://academicawards.sciencefather.com/award-nomination/?ecategory=Awards&rcategory=Awardee  Visit Our Website: academicawards.sciencefather.com  Contact us acadaward@sciencefather.com   Get Connected Here:  LinkedIn: https://www.linkedin.com/in/harita-r-1b9861224/  Blogger: https://academicawards2022.blogspot.com/  Instagram: https://www.instagram.com/harita_2021/  Pinterest: https://in.pinterest.com/academicawards/  Tumbler: https://www.tumblr.com/blog/academicawardsworld  Facebook: https://www.faceb...
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Unlocking SIMS: Carbon Depth Profiling Revolution!

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Unlocking SIMS: Carbon Depth Profiling Revolution explores how Secondary Ion Mass Spectrometry (SIMS) enables precise carbon depth analysis at the nanoscale. This breakthrough technique provides unparalleled insights into material composition, thin-film interfaces, and semiconductor structures, revolutionizing surface characterization and advancing research in materials science, nanotechnology, and energy device development.   International Academic Awards   Nomination Link: https://academicawards.sciencefather.com/award-nomination/?ecategory=Awards&rcategory=Awardee  Visit Our Website: academicawards.sciencefather.com  Contact us acadaward@sciencefather.com Get Connected Here:  LinkedIn: https://www.linkedin.com/in/harita-r-1b9861224/  Blogger: https://academicawards2022.blogspot.com/  Instagram: https://www.instagram.com/harita_2021/  Pinterest: https://in.pinterest.com/academicawards/  Tumbler: https://www.tumblr.com/blog/academic...
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Scientists detect biggest black hole flare ever seen — with the power of 10 trillion suns

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Astronomers have spotted the biggest flare ever seen erupting around a black hole, which also happens to be the most distant flare of this type ever detected. The supermassive black hole in J2245+3743 is feeding on surrounding gas and dust whirling around it in a flattened cloud shape called an accretion disk, but this flare is actually the result of something else: an unusually massive star venturing too close to the black hole which has a mass 500 million times greater than the sun). The tremendous gravitational influence of the black hole is ripping apart the star, and its stellar remains are being fed to this cosmic titan — an occurrence scientists call a tidal disruption event, or TDE. "This is unlike any AGN we've ever seen," Matthew Graham, team leader at theCalifornia Institute of Technology (Caltech) and a ZTF scientist, said in a statement. "The energetics show this object is very far away and very bright." The flare was first spotted in 2018 by the ZT...
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First Glimpse of a “Young Sun” Super-Eruption Captured by Astronomers

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  Plasma ejections from young stars may offer valuable insights into the Sun’s early history. Most of the time, we hardly notice it from Earth, but the Sun is constantly hurling vast clouds of charged plasma into space. These eruptions, known as coronal mass ejections (CMEs), often accompany sudden bursts of light called solar flares. When these energetic events reach far enough to interact with Earth’s magnetic field, they can create space weather, producing dazzling auroras, triggering geomagnetic storms, and in rare cases, disrupting power grids. Scientists think that billions of years ago, when both the Sun and Earth were young, this solar activity was far more intense. The early Sun may have unleashed CMEs so powerful that they influenced how life first appeared and evolved on our planet. Studies of young, Sun-like stars, which serve as stand-ins for our own star’s early days, show that they frequently generate flares far stronger than any recorded in modern times. Massive CME...
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Planet Y: A Hidden Earth-Size World Could Lurk Far Closer Than 'Planet Nine'

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  A newly discovered warp in the outer Solar System may have been created by a small, rocky world, much closer to the Sun than the hypothesized Planet Nine. According to a new measurement of the Kuiper Belt plane – the vast ring of icy worlds wherein Pluto resides – an unexpected 15-degree tilt in the orbital alignment of some objects in the belt could be the result of the influence of a planet stirring up trouble. "One explanation is the presence of an unseen planet, probably smaller than the Earth and probably bigger than Mercury, orbiting in the deep outer Solar System," astrophysicist Amir Siraj of Princeton University told CNN. "This paper is not a discovery of a planet, but it's certainly the discovery of a puzzle for which a planet is a likely solution." It's actually incredibly difficult to see what lies beyond the orbit of Neptune. So far from the Sun, the small objects in the flattened, donut-shaped Kuiper Belt reflect very little sunlight; they...
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