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INTRODUCTION

Status of the Deep Space Network

NASA's Digital Orrery

MAST: Barbara A. Mikulski Archive for Space Telescopes

Map of the Universe from Johns Hopkins University and others.....

Johns Hopkins University (JHU) continues to pad its space community résumé with their interactive map, “The map of the observable Universe”, that takes viewers on a 13.7-billion-year-old tour of the cosmos from the present to the moments after the Big Bang. While JHU is responsible for creating the site, additional contributions were made by NASA, the European Space Agency, the National Science Foundation, and the Sloan Foundation.

JWST's weekly observing schedule:

What Are Magnetars And Quasars?

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In this video we will talk about two of the most spectacular categories of astrophysical objects: what are magnetars and what are quasars. - - Subscribe for more videos ► Business Enquiries ► We have Another Channel ► "Down The Rabbit Hole" - -


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QUASARS!!!!!!!!!!!!!!!!!!!!!!!!


Too Big, Too Soon. Monster Black Hole Seen Shortly After the Big Bang


This artist's concept shows the most distant supermassive black hole ever discovered. It is part of a quasar from just 690 million years after the Big Bang. Credit: Robin Dienel/Carnegie Institution for Science

Artist’s impression of ULAS J1120+0641, a very distant quasar powered by a black hole with a mass two billion times that of the Sun. Credit: ESO/M. Kornmesser

This illustration shows the evolution of the Universe, from the Big Bang on the left, to modern times on the right. Credit: NASA

Swift’s Hard X-ray Survey offers the first unbiased census of active galactic nuclei in decades. Dense clouds of dust and gas, illustrated here, can obscure less energetic radiation from an active galaxy’s central black hole. High-energy X-rays, however, easily pass through. Credit: ESA/NASA/AVO/Paolo Padovani

A billion years after the big bang, hydrogen atoms were mysteriously torn apart into a soup of ions. Credit: NASA/ESA/A. Felid (STScI)).

Quasars are the Biggest Particle Accelerators in the Universe

We puny humans think we can accelerate particles? Look how proud we are of the Large Hadron Collider. But any particle accelerator we build will pale in comparison to Quasars, nature’s champion accelerators. Those things are beasts. The term quasar is a contraction—albeit a clumsy one—of “quasi-stellar radio source.” When they were first discovered in the 1950s, it was because of their unexplained radio emissions. In images, they were just star-like points of light. So they were tagged as quasi-stellar radio sources.

Thanks to the LHC

Wbsite of the Large Hadron Collider

A Hubble Space Telescope image of the disk of dust obscuring Centaurus A’s central region. Image Credit: NASA/ESA/Hubble

This is a Chandra X-ray Observatory image of Centaurus A. It shows a relativistic jet extending 30,000 light years from the central black hole. Image Credit: By R.Kraft (SAO) et al., CXO, NASA – http://apod.nasa.gov/apod/ap030705.html (image link)http://chandra.harvard.edu/photo/2001/0157blue/index.html (image link), Public Domain, https://commons.wikimedia.org/w/index.php?curid=536971

Colour composite image of Centaurus A, revealing the lobes and jets emanating from the active galaxy’s central black hole. This is a composite of images obtained with three instruments, operating at very different wavelengths. The 870-micron submillimetre data, from LABOCA on APEX, are shown in orange. X-ray data from the Chandra X-ray Observatory are shown in blue. Visible light data from the Wide Field Imager (WFI) on the MPG/ESO 2.2 m telescope located at La Silla, Chile, show the stars and the galaxy’s characteristic dust lane in close to “true colour”. By ESO/WFI (Optical); MPIfR/ESO/APEX/A.Weiss et al. (Submillimetre); NASA/CXC/CfA/R.Kraft et al. (X-ray) – http://www.eso.org/public/images/eso0903a/, CC BY 4.0, https://commons.wikimedia.org/w/index.php?curid=5821706

The large central telescope in the HESS array. It was responsible for the first detection a a gamma ray burst in very high energy gamma rays. Image Credit: MPIK / Christian Föhr

This image from the study shows Centaurus A’s very high energy gamma emitting region in the white dashed line. Image Credit: HESS Collaboration.


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Supermassive black holes can cloak themselves in a cocoon of dust, making them invisible even when they should be bright quasars

Quasars are the most powerful sources of light in the universe, but sometimes they’re hard to find. A team of astronomers used the Chandra X-ray Space Telescope to find some diamonds in the rough. When gas finds itself in the center of a galaxy, it must come toe-to-toe with a truly terrible monster: a supermassive black hole. These black holes can devour entire stars whole, and they don’t mess around. As material falls towards the event horizon, it crams together into a small volume. The friction of that trek generates heat and light. When this happens, the galaxy is known as a quasar.


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Astronomers see a Rare “Double Quasar” in a Pair of Merging Galaxies

What’s better than a quasar? That’s right, two quasars. Astronomers have spotted for the first time two rare double-quasars, and the results show us the dynamic, messy consequences of galaxy formation. Every galaxy is thought to host a supermassive black hole in its center. When galaxies merge, their black holes merge along with them. During the height of the merger process, huge volumes of gas and dust swirl down to the center of the galaxy. As all that gas and dust compresses down into the black hole, it heats up. The forces are so intense that the cores of these galaxies become “quasars”, blazing brighter than millions of normal galaxies put together and beaming massive jets of radiation thousands of lightyears into space.

The Awesome Power of the Quasar - Ask a Spaceman!

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What powers a quasar? Just how strong is a blazar? What’s the connection to giant black holes? I discuss these questions and more in today’s Ask a Spaceman! Full podcast episodes: Support: Follow: Follow: on twitter Follow:on Facebook Watch on YouTube: Go on an adventure: Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE! Big thanks to my top Patreon supporters this month: Justin G., Matthew K., Kevin O., Justin R., Chris C., Helge B., Tim R., Nick T., Lars H., Ray S., John F., , Anilavadhanula, Mark R., and David B.! Music by Jason Grady and Nick Bain. Thanks to WCBE Radio for hosting the recording session, Greg Mobius for producing, and Cathy Rinella for editing. Hosted by Paul M. Sutter, astrophysicist at The Ohio State University, Chief Scientist at COSI Science Center, and the one and only Agent to the Stars


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Astronomy Jargon 101: Quasar

In the 1950’s radio astronomers got quite a surprise. They thought they were looking for interesting radio sources within the Milky Way galaxy, but instead they found points of super-intense radio emission apparently coming from deep space. They didn’t quite know what to make of them, but they did note that they were a) kind of star-like, and b) definitely some sort of object. A quasi-stellar object. A QSO. A Quasar.

The Awesome Power of the Quasar - Ask a Spaceman!

<>

What powers a quasar? Just how strong is a blazar? What’s the connection to giant black holes? I discuss these questions and more in today’s Ask a Spaceman! Full podcast episodes: Support: Follow: Follow: on twitter Follow:on Facebook Watch on YouTube: Go on an adventure: Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE! Big thanks to my top Patreon supporters this month: Justin G., Matthew K., Kevin O., Justin R., Chris C., Helge B., Tim R., Nick T., Lars H., Ray S., John F., , Anilavadhanula, Mark R., and David B.! Music by Jason Grady and Nick Bain. Thanks to WCBE Radio for hosting the recording session, Greg Mobius for producing, and Cathy Rinella for editing. Hosted by Paul M. Sutter, astrophysicist at The Ohio State University, Chief Scientist at COSI Science Center, and the one and only Agent to the Stars


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A Galaxy With Ten Times the Mass of the Milky Way is Preparing to Become a Quasar

The massive, hyper-luminous galaxy W0410-0913 and its surroundings, seen 12 billion years back in time. Credit: M. Ginolfi & G. Jones / VLT / ESO.

What Is A Quasar?

In this short video explainer, Universe Today publisher Fraser Cain investigates the most powerful objects in the Universe: quasars. In just the last few decades, our understanding of quasars has developed in leaps and bounds. . We now know what they are. And so will you

Artist’s impression of a distant quasar powered by a black hole with a mass two billion times that of the Sun. Credit: ESO/M. Kornmesser

A three-dimensional stereographic view of W0410-0913 (blue sphere) and its galactic neighbors (red spheres). Credit: Peter Laursen/NBI


Webb Sees a Cluster of Galaxies Feeding a Quasar

Concept image of a galactic quasar. Such objects in the early Universe offer clues to conditions when they existed. Credit: ParallelVision, Pixabay

The quasar SDSS J165202.64+172852.3. On the left is a wide-field Hubble view of multiple galaxies in the field. In the center is a JWST NIRSpec composite of four narrow-band images together, which appears as a blurry rainbow of colors. On the right are the four individual narrow-band images of the quasar in red, orange, teal, and blue. ESA/Webb, NASA, CSA, D. Wylezalek, A. Vayner & the Q3D Team, N. Zakamska.


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The Event Horizon Telescope Gazes into the Heart of a Distant Quasar

Concept image of a galactic quasar. Astronomers used the Event Horizon Telescope to study details at the heart of one like this called NRAO 530. Credit: ParallelVision, Pixabay

What is Polarization? | Event Horizon Telescope

Light is an oscillating electromagnetic wave. If the waves have a preferred direction of oscillation, they are polarized. In space, moving hot gas, or ‘plasma’, threaded by a magnetic field emits polarized light. The polarized light rays that manage to escape the pull of the black hole travel to a distant camera. The intensity of those light rays and their direction are what we observe with the Event Horizon Telescope. Today, we reveal a breakthrough discovery: the Event Horizon Telescope has imaged polarized light close to the shadow of M87* for the very first time. Using this knowledge, we can map out the magnetic fields that surround the black hole, and connect them to the powerful jet of plasma it ejects. The Event Horizon Telescope (EHT) is an international collaboration that captured the first image of a black hole by creating a virtual Earth-sized telescope. To learn more, you can check out our website at Follow us on Twitter: Follow us on Facebook: Or follow us on Instagram: If you enjoyed this video, please like, comment, and subscribe! Credit: Producers: Radboud University, Goethe University Frankfurt Director: Sara Issaoun Writers: Sara Issaoun, Monika Moscibrodzka, Raquel Fraga Encinas, Christiaan Brinkerink, Hector Olivares, Freek Roelofs Editors: Sara Issaoun, Raquel Fraga Encinas, RU EHT Group, Polarimetry Working Group, and Outreach Working Group Narrator: Nicola Barber Animation: Fiks Film Animation Director: Nelis Claassen Funded with support from the European Research Council, Radboud University Nijmegen, and Goethe University Frankfurt. Realised under the auspices of the Event Horizon Telescope.

Polarization of Light: circularly polarized, linearly polarized, unpolarized light

3D animations explaining circularly polarized, linearly polarized, and unpolarized electromagnetic waves.

EHT’s Polarized View of the Quasar Jet Images of NRAO 530 were obtained by the EHT Collaboration using several different imaging methods with the quasar core located toward the bottom-left part of the image, and the jet extending upwards (north). The contours show the structure in total (solid black) and polarized (dotted) light; dashes represent the direction of the observed polarization (Courtesy: EVPA).

Quasar 3C 273, 2003 in an HST image. (Credit: NASA/J.Bahcall(IAS))


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Articles and videos

From Universetoday.com

Pages from UniverseToday

Universe today's category on Astronomy


Universe Today's CATEGORY: BLACK HOLES POSTED ONDECEMBER 15, 2020
A Galaxy is Making New Stars Faster Than its Black Hole Can Starve Them for Fuel


How were Supermassive Black Holes Already Forming and Releasing Powerful Jets Shortly After the Big Bang?


Some Quasars Actually Contain Two Supermassive Black Holes in the Process of Merging


Astronomers see a Rare “Double Quasar” in a Pair of Merging Galaxies



Universe Today'S CATEGORY: QUASARS



Universe Today'S TAG: ACTIVE GALAXIES



Universe Today'S TAG: GALAXY MERGERS



Universe Today'S TAG: QUASARS




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Astronomy Jargon 101: Quasar

CATEGORY: ASTRONOMY

Universe today's TAG: ASTRONOMY JARGON


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What Is A Quasar?

A Galaxy With Ten Times the Mass of the Milky Way is Preparing to Become a Quasar

This is it! Meet the Supermassive Black Hole at the Heart of the Milky Way

What is Sagittarius A*?

What are Active Galactic Nuclei?

Universe Today's CATEGORY: ASTRONOMY

Universe Today's CATEGORY: COSMOLOGY

Universe Today's CATEGORY: GALAXIES


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Webb Sees a Cluster of Galaxies Feeding a Quasar

Rise of the Super Telescopes: The James Webb Space Telescope

Universe Today's CATEGORY: QUASARS


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The Event Horizon Telescope Gazes into the Heart of a Distant Quasar

The Event Horizon Telescope has Revealed the Magnetic Field Lines Around M87's Central Black Hole

Universe today's CATEGORY: QUASARS



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FlatArticles

From NASA


Astronomers discover a swarm of galaxies orbiting a hyper-luminous galaxy

Information on Astronomers discover a swarm of galaxies orbiting a hyper-luminous galaxy

Webb uncovers dense cosmic knot in the early Universe

Event Horizon Telescope

Information on Event Horizon Telescope


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Videos

The Awesome Power of the Quasar - Ask a Spaceman!

<>

Full podcast episodes: Support: Follow: Follow: on twitter Follow:on Facebook Watch on YouTube: Go on an adventure: What powers a quasar? Just how strong is a blazar? What’s the connection to giant black holes? I discuss these questions and more in today’s Ask a Spaceman! Keep those questions about space, science, astronomy, astrophysics, physics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE! Big thanks to my top Patreon supporters this month: Justin G., Matthew K., Kevin O., Justin R., Chris C., Helge B., Tim R., Nick T., Lars H., Ray S., John F., , Anilavadhanula, Mark R., and David B.! Music by Jason Grady and Nick Bain. Thanks to WCBE Radio for hosting the recording session, Greg Mobius for producing, and Cathy Rinella for editing. Hosted by Paul M. Sutter, astrophysicist at The Ohio State University, Chief Scientist at COSI Science Center, and the one and only Agent to the Stars

Centaurus A is a giant elliptical active galaxy 12 million light years away. Radio and X-ray images reveal features associated with jets emanating from near the galaxy's central supermassive black hole, which has a mass of 55 million suns. Now, the TANAMI project has provided the best-ever view of these jets. In the radio image of the galaxy's core, the black hole is invisible but the jets show in great detail. Features as small as 15 light-days across can be resolved. The powerful jets feed vast lobes of radio-emitting gas that reach far beyond the visible galaxy. This video is public domain and can be downloaded at: If you liked this video, subscribe to the NASA Goddard YouTube channel: Like our videos? Subscribe to NASA's Goddard Shorts HD podcast: Follow NASA’s Goddard Space Flight Center · Instagram · Twitter NASA GODDARD · Twitter NASA GODDARD PICTURES · Facebook: · Flickr

Cherenkov Radiation : Particles Faster Than the Speed of Light?

In something like water, particles like electrons can beat light in a race – and cause a blue glow to prove it. Hosted by: Caitlin Hofmeister ---------- Support SciShow by becoming a patron on Patreon: ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn't make SciShow without them! Shout out to Kathy & Tim Philip, Kevin Bealer, Andreas Heydeck, Thomas J., Accalia Elementia, Will and Sonja Marple. James Harshaw, Justin Lentz, Chris Peters, Bader AlGhamdi, Benny, Tim Curwick, Philippe von Bergen, Patrick Merrithew, Fatima Iqbal, Mark Terrio-Cameron, Patrick D. Ashmore, and charles george. ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: dftba.com/scishow ---------- Looking for SciShow elsewhere on the internet? : Facebook Twitter: : FacebookTumblr : Instagram ---------- Sources: Index of refraction: Refraction of Light The Speed of Light and the Index of Refraction Optical Density and Light Speed General info on Cherenkov radiation: Cherenkov Radiation is a sonic boom for light Cherenkov radiation physics Doppler effect and sonic booms: Sonic Shock The Doppler Effect and Shock Waves Sonic boom Shock waves, the sonic boom and the sound barrier shock Waves< Physics hypertext/A> Neutrinos: Nuclear fission Electron Neutrinos and Antineutrinos The importance of neutrino research to physics Looking for Neutrinos, Nature’s Ghost Particles Images: Nuclear Fission File:Advanced Test Reactor.jpg File:SNO support outside.jpg File:CMS Higgs-event.jpg


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PDFS

Detection of companion galaxies around hot dust-obscured hyper-luminous galaxy W0410-0913

Information on Detection of companion galaxies around hot dust-obscured hyper-luminous galaxy W0410-0913 (PDF)

First results from the JWST Early Release Science Program Q3D: Turbulent times in the life of a z∼3 extremely red quasar revealed by NIRSpec IFU

Information on First results from the JWST Early Release Science Program Q3D: Turbulent times in the life of a z∼3 extremely red quasar revealed by NIRSpec IFU (PDF)


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