Как спиральные галактики приобретают свою красивую спиральную структуру? Сегодня поговорим о Grand Design и флокулентных спиральных галактиках, о версиях того чем являются спиральные рукава и как они возникают.
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Hello and welcome! My name is Anton and in this video, we will talk about the recently discovered brightest supernova ever known as SN2016aps
Paper: arxiv.org/pdf/2004.05840.pdf
Image credit: Oliver Burston, Getty Images
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Если вы хоть раз смотрели на ночное небо в ясную погоду где-нибудь за городом, то вы знаете, насколько это невероятно! Хотя звёзды находятся неприлично далеко от нас (кроме одной), мы всё же научились исследовать их. Поэтому я начала еще одну серию выпусков, которая называется «Звездные истории». Во второй части начинаем разговор о звездной эволюции, о разных видах звезд и о том, как они умирают…
Основные источники:
Книга: Протозвёзды. Где, как и из чего формируются звёзды.
В.Г. Сурдин, С.А. Ламзин
Лекции астрофизика Сергея Попова
Лекции астронома Владимира Сурдина
Лекции астрофизика Сергея Ламзина
Цефеиды: elementy.ru/problems/1338/Tsefeidy
Since its launch 25 Years ago, the Hubble Telescope has returned images of unprecedented beauty of a dynamic and changing universe.
In this episode of COSMIC JOURNEYS, Hubble’s most iconic images are bought to life to answer some of the most important questions facing astronomers today. Colliding galaxies, the birth and death of stars, jets of gas thrown out by material crashing into distant suns: these incredible images tech us valuable lessons about how galaxies are formed, what dark matter is and even the fate of the earth itself.
ABOUT US
Here at SpaceRip, we value the exploration of the unknown. We surpass boundaries for the sake of uncovering the mysteries of the cosmos and what they may tell us about our origin and our future. With our videos, we hope to educate our viewers on how we fit into the universe, and more so how we can do our part to better it.
We believe there is no better time to inform ourselves about the world around us. Our partnership with MagellanTV is aimed to educate viewers on our complex world to prepare for our rapidly changing future. Through our videos we hope to capture a variety of important topics with the overall goal of promoting positive discussion and action.
For more 4K space, and more great History and Science than youll ever watch, check out our sister network… www.magellantv.com/featured
Our Milky Way may harbor millions of black holes… the ultra dense remnants of dead stars. But now, in the universe far beyond our galaxy, theres evidence of something far more ominous. A breed of black holes that has reached incomprehensible size and destructive power. Just how large, and violent, and strange can they get?
A new era in astronomy has revealed a universe long hidden to us. High-tech instruments sent into space have been tuned to sense high-energy forms of light — x-rays and gamma rays — that are invisible to our eyes and do not penetrate our atmosphere. On the ground, precision telescopes are equipped with technologies that allow them to cancel out the blurring effects of the atmosphere. They are peering into the far reaches of the universe, and into distant caldrons of light and energy. In some distant galaxies, astronomers are now finding evidence that space and time are being shattered by eruptions so vast they boggle the mind.
We are just beginning to understand the impact these outbursts have had on the universe: On the shapes of galaxies, the spread of elements that make up stars and planets, and ultimately the very existence of Earth. The discovery of what causes these eruptions has led to a new understanding of cosmic history. Back in 1995, the Hubble space telescope was enlisted to begin filling in the details of that history. Astronomers selected tiny regions in the sky, between the stars. For days at a time, they focused Hubbles gaze on remote regions of the universe.
These hubble Deep Field images offered incredibly clear views of the cosmos in its infancy. What drew astronomers attention were the tiniest galaxies, covering only a few pixels on Hubbles detector. Most of them do not have the grand spiral or elliptical shapes of large galaxies we see close to us today.
Instead, they are irregular, scrappy collections of stars. The Hubble Deep Field confirmed a long-standing idea that the universe must have evolved in a series of building blocks, with small galaxies gradually merging and assembling into larger ones.
ABOUT US
Here at SpaceRip, we value the exploration of the unknown. We surpass boundaries for the sake of uncovering the mysteries of the cosmos and what they may tell us about our origin and our future. With our videos, we hope to educate our viewers on how we fit into the universe, and more so how we can do our part to better it.
We have partnered with MagellanTV with the goal of providing our viewers with insight regarding our uncertain future on Earth and beyond. Equipped with knowledge, we hope to inspire people to enact change and pave the way for a better tomorrow.
Если вы не астроном, то, скорее всего, не знаете, что звезды движутся очень быстро. Возможно, вы даже не догадываетесь, что они вообще двигаются. Если так, то для вас станет большим сюрпризом, что через нашу галактику летит звезда S5-HVS1, чья скорость превышает невероятные 17 000 км/с.
И как это бывает со многими ярчайшими открытиями, эта звезда была открыта по чистейшей случайности. Астроном Сергей Копосов просматривал данные исследования, когда заметил нечто необычное. Он искал звезды с сильно вытянутыми орбитами, а нашел звезду, которая бежала из галактики на рекордной скорости.
sozvezdiedom