#xmm-newton

[mendely]

Telescopes 👀😶

[startswithabang]

We Just Found The Missing Matter In The Universe, And Still Need Dark Matter

“For over 40 years, scientists have argued over dark matter's existence. Big questions arose from the motions inside galaxies, clusters of galaxies, and along the cosmic web. From their gravity, we can infer the total mass in the Universe. Yet multiple sources indicate that only 15% of that mass can be baryonic: made of normal matter.”

Is dark matter truly necessary? Many argued that, until we found the entirety of the normal matter in the Universe, we couldn’t be sure. The motions of galaxies, clusters of galaxies, and the formation of large-scale structure and the cosmic web all indicate a certain amount of mass in the Universe, and many sources such as the CMB and big bang nucleosynthesis indicate that the “normal” matter can only be about 15% of the total, implying dark matter. But finding all the normal matter has proven elusive, with the theorized WHIM (warm-hot intergalactic medium) not showing up in sufficient abundance. In particular, the hot part just wasn’t there.

Until now. Observation made with XMM-Newton have at last revealed it, and it’s there in just the right, predicted amounts. And therefore, dark matter is still absolutely necessary.

[aimlessinspace]

The Dynamic Duo: Jupiter's Independently Pulsating X-ray Auroras

Jupiter's intense northern and southern lights, or auroras, behave independently of each other according to a new study using NASA's Chandra X-ray and ESA's XMM-Newton observatories.

[rjbailey]

The Dynamic Duo: Jupiter's Independently Pulsating X-ray Auroras by NASA's Marshall Space Flight Center Via Flickr: Jupiter's intense northern and southern lights, or auroras, behave independently of each other according to a new study using NASA's Chandra X-ray and ESA's XMM-Newton observatories. Using XMM-Newton and Chandra X-ray observations from March 2007 and May and June 2016, a team of researchers produced maps of Jupiter's X-ray emissions (shown in inset) and identified an X-ray hot spot at each pole. Each hot spot can cover an area equal to about half the surface of the Earth. The team found that the hot spots had very different characteristics. The X-ray emission at Jupiter's south pole consistently pulsed every 11 minutes, but the X-rays seen from the north pole were erratic, increasing and decreasing in brightness — seemingly independent of the emission from the south pole. This makes Jupiter particularly puzzling. X-ray auroras have never been detected from our Solar System's other gas giants, including Saturn. Jupiter is also unlike Earth, where the auroras on our planet's north and south poles generally mirror each other because the magnetic fields are similar. Image credit: X-ray: NASA/CXC/UCL/W.Dunn et al, Optical: South Pole:Credits: NASA/JPL-Caltech/SwRI/MSSS/Gerald Eichstädt /Seán Doran North Pole Credit:NASA/JPL-Caltech/SwRI/MSSS Read more NASA Media Usage Guidelines

[earthstory]

New Insights Into the Crab Nebula

Five observatories teamed up to spy on the Crab Nebula and the results are incredible. The VLA (radio) views are shown in red; Spitzer Space Telescope (infrared) in yellow; Hubble Space Telescope (visible) in green; XMM-Newton (ultraviolet) in blue; and Chandra X-ray Observatory (X-ray) in purple. The Crab Nebula is the remnant of a bright supernova explosion first spotted by the Chinese in 1054. Located 6,500 light-years from Earth, the Nebula is home to a super-dense neutron star. The stellar powerhouse -- known as a pulsar and seen as a bright dot in the center of the image -- emits pulsing lighthouse-like beams of radio waves and light as it rotates (or pulses) once every 33 milliseconds.

The super-dense star does more that put on a dazzling display of stellar strobe lights, it also gives the nebula it's intricate shape. A fast-moving blast of particles emanating from the pulsar, combines with material ejected by the supernova explosion and its progenitor star, to form the distinctive shape we know as the Crab Nebula.

This incredible new video starts by showing us a composite image of the Crab Nebula, created by combining data from five observatories spanning nearly the entire breadth of the electromagnetic spectrum: the Very Large Array, the Spitzer Space Telescope, the Hubble Space Telescope, the XMM-Newton Observatory, and the Chandra X-ray Observatory.

From the image, the video dissolves to the red-colored radio-light view illustrating how a neutron star’s fierce “wind” of charged particles energizes the nebula, ultimately causing it to emit the radio waves. Next we see the yellow-colored infrared image from Spitzer, which shows the glow of dust particles absorbing ultraviolet and visible light. Then we see through Hubble's eyes as the green-colored visible-light image offers a sharp view of hot filaments that permeate this nebula. Lastly, we see the blue-colored ultraviolet image and the purple-colored X-ray image, which highlight the effect of an energetic cloud of electrons driven by a rapidly rotating neutron star at the center of the nebula.

Image & Source Credit: Credits: NASA, ESA, J. DePasquale (STScI)

https://youtu.be/ZiGuh0yISao

[sunshinelollipopsies]

ahhh omg hello newtonn🥰🥰

[astroblogs]

Chandra en XMM-Newton zien hoe een witte dwerg zijn begeleider roostert en verscheurt

Chandra en XMM-Newton zien hoe een witte dwerg zijn begeleider roostert en verscheurt

Illustratie van de witte dwerg en zijn begeleider. Credit: Illustration: NASA/CXC/M. Weiss; X-ray (Inset): NASA/CXC/ASIAA/Y. Chu. et al.NASA/CXC/M. Weiss; X-ray (Inset): NASA/CXC/ASIAA/Y.-H. Chu, et al. Sterrenkundigen hebben met behulp van NASA’s Chandra en ESA’s XMM-Newton röntgenruimtetelescopen een witte dwerg ontdekt die bezig is om zijn begeleider – een planeet of een kleine ster – te…

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[adrianusv61]

Chandra en XMM-Newton zien hoe een witte dwerg zijn begeleider roostert en verscheurt

Chandra en XMM-Newton zien hoe een witte dwerg zijn begeleider roostert en verscheurt

Illustratie van de witte dwerg en zijn begeleider. Credit: Illustration: NASA/CXC/M. Weiss; X-ray (Inset): NASA/CXC/ASIAA/Y. Chu. et al.NASA/CXC/M. Weiss; X-ray (Inset): NASA/CXC/ASIAA/Y.-H. Chu, et al. Sterrenkundigen hebben met behulp van NASA’s Chandra en ESA’s XMM-Newton röntgenruimtetelescopen een witte dwerg ontdekt die bezig is om zijn begeleider – een planeet of een kleine ster – te…

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