Tuesday, December 3, 2024

Broken water pipe knocks out data processing for NASA sun-studying spacecraft

Broken pipe knocks out NASA's Solar Dynamics Observatory | Space Quiz! These are dense stellar remnants that blast out beams of radiation that sweep across the cosmos as they spin. | Cosmic rays could help assess hidden damage in Ukraine
Created for znamenski.spacecom@blogger.com |  Web Version
December 3, 2024
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The Launchpad
Broken pipe knocks out NASA's Solar Dynamics Observatory
(NASA/SDO)
Scientists won't be able to process much of the data gathered by NASA's Solar Dynamics Observatory (SDO) and IRIS spacecraft for a while, thanks to a burst water pipe. That pipe - a 4-inch-wide (10 centimeters) cooling water line in a server room at Stanford University in California that's home to the SDO Joint Science Operations Center (JSOC) - burst on Nov. 26.
Full Story: Space (12/2) 
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Space Quiz! These are dense stellar remnants that blast out beams of radiation that sweep across the cosmos as they spin.
Learn the answer here!
VotePulsars
VoteDwarf Stars
VoteSupermassive Black Holes
VoteSpiral Galaxies
Cosmic rays could help assess hidden damage in Ukraine
(Getty)
Energetic particles that pop briefly into existence when cosmic rays hit Earth's atmosphere could help assess hidden damage to buildings in Ukraine after the war ends. These particles - known as muons - are very strange. They are birthed from collisions between high-energy protons and atomic nuclei that make up cosmic rays, and molecules in Earth's atmosphere.
Full Story: Space (12/3) 
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Skywatching
Night sky, December 2024: What you can see this month
(Chris Vaughan/Starry Night)
The northeastern sky on tonight's December evening hosts the bright constellations of Perseus and W-shaped Cassiopeia, with the very bright yellowish star Capella gleaming below them. The sky between Perseus and Cassiopeia hosts the Double Cluster, a pair of bright open star clusters that together cover a finger's width of the sky.
Full Story: Space (10/1) 
Spaceflight
Chinese astronauts show fruit fly experiment on Tiangong
(CCTV)
China's Shenzhou 19 astronauts have some winged companions to oversee aboard the country's space station. The astronauts arrived at the Tiangong space station on Oct. 29, beginning their six-month-long stay in orbit. They have since been joined by 15 adult fruit flies and 40 pupae, which arrived aboard the Tianzhou 8 resupply mission on Nov. 15.
Full Story: Space (12/2) 
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Science & Astronomy
Hubble peeks planet-forming disk 3x hotter than the sun's
(NASA-JPL, Caltech)
A star about 1,360 light-years away from Earth, named FU Orionis, is twice as hot as astronomers previously suspected, according to recent data from the Hubble Space Telescope. In fact, scientists believe that the region where FU Orionis's planet-forming disk touches the star's surface glows at around 16,000 Kelvin - three times hotter than the surface of our sun.
Full Story: Space (12/2) 
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Technology
Near Space Labs launches fleet of AI-powered balloon robots
(Sen)
Near Space Labs, a New York-based startup, has deployed a network of high-altitude balloons equipped with advanced robotic cameras to capture high-resolution images of disaster-prone neighborhoods across the United States. With this enhanced imagery, the startup said it aims to accelerate the work of insurance companies that rely on aerial data to assess property risks and respond to damage caused by extreme weather events.
Full Story: Space (11/27) 
Search for Life
SETI tracks signals with data from Arecibo Observatory
(Robert Lea (created with Canva))
You can knock a good telescope out, but you can't keep it down. Using data from the now-destroyed Arecibo radio telescope, scientists from the Search for Extraterrestrial Intelligence (SETI) Institute have unlocked the secrets of signals from "cosmic lighthouses" powered by dead stars.
Full Story: Space (12/2) 
 
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Seminars Digest, Vol 70, Issue 1

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1. Friday 06.12.2024 (info+seminars@itp.ac.ru)


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Message: 1
Date: Tue, 3 Dec 2024 10:02:01 +0300
From: info+seminars@itp.ac.ru
To: staff@itp.ac.ru, students@itp.ac.ru, seminars@itp.ac.ru
Subject: [Landau ITP Seminars] Friday 06.12.2024
Message-ID: <KIzSoE5dDF2R5a0iAMUUGkVTs66mBstvyQ1N9I@wwwserv2>
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Уважаемые коллеги!

На заседании Ученого совета ИТФ в пятницу 06.12 в 11:30 будет заслушан 1 доклад:
1). Д. С. Катков, C. С. Апостолов, И. С. Бурмистров
Связанные состояния и рассеяние магнонов на сверхпроводящем вихре в гетероструктурах ферромагнетик–сверхпроводник

Изучен магнонный спектр в тонкой гетероструктуре ферромагнетик--сверхпроводник в присутствии сверхпроводящего вихря. Для этого используется гамильтониан типа Боголюбова--Де Жена, описывающий магноны в присутствии внешнего магнитного поля и неоднородного профиля намагниченности, создаваемого этим вихрем. Показано, что на вихре образуются связанные состояния магнонов подобно тому, как заряженный центр создает связанные состояния электронов из-за экранированного кулоновского взаимодействия в двумерном электронном газе. Число этих локализованных состояний определяется только материальными параметрами ферромагнитной пленки. Также решена задача рассеяния для плоской падающей спиновой волны и вычислены полное и транспортное сечения рассеяния. Показано, что профиль намагниченности, создаваемый вихрем в пленке кирального ферромагнетика приводит к асимметричному рассеянию магнонов. Обсуждены особенности квантовой задачи рассеяния, соответствующие орбитальному обращению в классическом пределе.

Результаты опубликованы в D.S. Katkov, S.S. Apostoloff, I. S. Burmistrov, ``Bound states and scattering of magnons on a superconducting vortex in ferromagnet-superconductor heterostructures'', Pis&#039;ma v ZhETF 120, 681 (2024). (http://jetpletters.ru/ps/2486/article_36479.pdf)

ID и пароль онлайн-трансляций в Zoom те же, что и для предыдущих трансляций семинаров и докладов на Ученом совете:
https://zoom.us/j/96899364518?pwd=MzBsR2lYT0lYL2x2b1oyNU9LeWlWUT09
Meeting ID: 968 9936 4518
Пароль: 250319

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Запись на обратный автобус - на Ученом совете.

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