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What would the Milky Way look like if you could see all of its light?




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Even from our location, there is a great lesson: the galactic plain obscured the universe beyond, about 10 degrees above and below, in visible light, as shown here: If you want to see what is behind our galaxy – or a dusty galaxy – just look into the infrared and see how that is Universe opens up to you.

ESO / B.Tafreshi

If you look at the Milky Way in visible light, you may see billions of stars, but you miss so much more.

Multi-wavelength images of M31, the Andromeda galaxy : Obviously, different wavelengths show different details that can not be seen in visible light alone.

Planck Mission Team / NASA / ESA

The human eye is only for one tiny fraction of the total electromagnetic (light) spectrum sensitive.

The transmittance or opacity of the electromagnetic spectrum through the atmosphere osphere. Note all the absorption characteristics in gamma rays, X-rays and infrared, which is why they are best viewed from outer space. At many wavelengths, like on the radio, the ground is just as good, while others are simply impossible. Although the atmosphere is largely transparent to visible light, it significantly distorts the incident starlight.

NASA

Each wavelength range shows a novel view of what's outside.

NASA's Fermi satellite has constructed the highest resolution. ever created a high-energy map of the universe. Without space-based observatories like this, we could never learn everything we have about the universe.

NASA / DOE / Fermi LAT Collaboration

Gamma Ray : The highest-energy light comes from black holes, neutron stars, nova bursts, high-energy antimatter-driven bubbles, and supernova remnants.

X-rays : When matter heats up due to collisions, stellar processes, catastrophic events or the acceleration of neutron stars or black holes, X-rays are generated.

NAS Observatory Chandra X-ray star data reveal the central region of the Milky Way. The X-rays of Chandra (blue and purple) show that millions of degrees have been heated by stellar explosions and outflows from the supermassive black hole of the Milky Way.

NASA / CXC / UMass / D. Wang et al.

The strongest source of X-rays are supermassive black holes.

This mosaic of 330 images from NASA's Swift Observatory shows the newly formed, hot, UV-emitting stars in the Andromeda galaxy. Unfortunately, it is not possible to view our own Milky Way from the galactic level within the galactic plane, as the dust simply blocks the ultraviolet light to block these views.

NASA / Swift / Stefan Immler (GSFC) and Erin Grand (UMCP)

Ultraviolet : This light usually shows hot, newly formed stars but is lousy for looking at our own galaxy.

There is just too much dust destroying the ultraviolet light. 19659025] A map with star density in the Milky Way and the surrounding sky clearly showing the Milky Way, the large and small Magellanic Clouds (our two largest satellite galaxies) and, if you look more closely, NGC 104 to the left of the SMC, NGC 6205 slightly above and to the left of the galactic core and NGC 7078 just below. There are many galaxies to discover, but within about 10 degrees above and below the galactic level, visible light can not show them.

ESA / GAIA

Visible : This is what we normally do. See, billions of stars with light-repellent dust.

The SDSS view in the infrared – with APOGEE – the Milky Way towards the center. Infrared wavelengths of around 400 billion stars are best suited to seeing as many as possible because of their transparency to light-blocking dust.

Sloan Digital Sky Survey

Infrared : Finally the hidden stars become visible.

This four-screen view shows the central area of ​​the Milky Way in four different wavelengths of light, with the longer wavelengths (submillimeters) going up through the far and near infrared (2nd and 3rd infrared). and end in a visible light of the Milky Way. Note that the dust streaks and the stars in the foreground cover the center in visible light, but less in the infrared range.

ESO / ATLASGAL Consortium / NASA / GLIMPSE Consortium / VVV Surveying / ESA / Planck / D. Minniti / S. Guisard Recognition: Ignacio Toledo, Martin Kornmesser

The long-wave nature of IR light makes it dust-permeable.

Mid-IR and Far-IR light reveals cooler gas and protostars.

The First Complete Sky Map The study, published by the Planck collaboration, reveals some extragalactic sources with a cosmic microwave background, but dominated by the microwave emissions of its own galaxy in the foreground: mostly in the form of dust, which is low but not negligible Temperatures are shining.

Planck's Collaboration / ESA, HFI and LFI Consortium

Microwaves : Just show heated dust.

The positions of the known fast radio bursts from 2013, including four, which contribute to the evidence of extra-galactic origins of these objects. The remaining radio emissions show the locations of galactic sources such as hydrogen gas and electrons.

MPIfR / C.Ng; Science / D. Thornton et al.

Radio : The lowest energy light reveals electrons and hydrogen gas.

This multiple-wave view of the galactic center of the Milky Way goes from the X-ray through the optics and into the X-ray infrared, which presents Sagittarius A * and the intragalactic medium about 25,000 light-years away. The black hole has a mass of about 4 million suns, while the Milky Way as a whole is less than a new Sun Star every year. Later this year, the EHT will use radio data to resolve the event horizon of the black hole. Note that even with images of assigned color it is difficult to unravel the different contributions of different wavelengths.

X-ray: NASA / CXC / UMass / D. Wang et al. Optical: NASA / ESA / STScI / D.Wang et al .; IR: NASA / JPL-Caltech / SSC / S.Stolovy

With so much information, they are better viewed in single wavelengths.

A multi-wavelength view of the Milky Way shows the presence of many different phases and states of normal matter far behind the stars we are used to seeing in visible light. The individual wavelengths shown here are separate and not mixed together, so we can display the information about each component.

NASA


Mute Monday usually tells an astronomical or scientific story in pictures, pictures, and not more than 200 words. Less speech; smile more.

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Even from our location, there is a great lesson to learn: the galactic plain darkens the universe beyond it, about 10 degrees above and below, in visible light, as shown here you want to see what is behind our galaxy – or a dusty galaxy – just look into the infrared and watch the universe open for you.

ESO / B.Tafreshi

If you see the Milky Way within sight, you may see billions of stars, but you miss so much more.

Multi-wavelength images of M31, the Andromeda Galaxy: Clearly, different wavelengths show different details that are invisible in visible light alone.

Planck Mission Team / NASA / ESA

The human eye responds only to a tiny fraction of the total electromagnetic (light) spectrum.

The transmittance or opacity of the electromagnet spectrum through the atmosphere. Note all absorption characteristics in gamma rays. X-rays and infrared, which is why they are best seen from outer space. At many wavelengths, like on the radio, the ground is just as good, while others are simply impossible. Although the atmosphere is largely transparent to visible light, it significantly distorts the incident starlight.

NASA

Each wavelength range shows a novel view of everything that is outside.

NASA's Fermi satellite has constructed the highest resolution. ever created a high-energy map of the universe. Without space-based observatories like this, we could never learn everything we have about the universe.

NASA / DOE / Fermi LAT Collaboration

Gamma Ray : The highest energy light comes from black holes, neutron stars, nova bursts, high-energy antimatter-driven bubbles and supernova remnants.

X-rays : When matter is due to collisions, stellar outflows, cataclysmic events or acceleration by neutron stars or black heated holes, X-rays result.

Data from NASA's Chandra X-ray Observatory show the central region of the Milky Way. The X-rays of Chandra (blue and purple) show that millions of degrees have been heated by stellar explosions and outflows from the supermassive black hole of the Milky Way.

NASA / CXC / UMass / D. Wang et al.

The strongest source of X-rays are supermassive black holes.

This mosaic of 330 images from NASA's Swift Observatory shows the newly formed hot UV emitting stars in the Andromeda galaxy. Unfortunately, it is not possible to view our own Milky Way from the galactic level within the galactic plane, as the dust simply blocks the ultraviolet light to block these views.

NASA / Swift / Stefan Immler (GSFC) and Erin Grand (UMCP)

Ultraviolet : This light usually shows hot, newly formed stars but is lousy for looking at our own galaxy.

There is just too much dust destroying the ultraviolet light. 19659068] A map of star density in the Milky Way and the surrounding sky showing the Milky Way, Magellanic and Magellanic Clouds (our two largest satellite galaxies) and, if you look more closely, NGC 104 to the left of the SMC, NGC 6205 slightly above and to the left of the galactic core and NGC 7078 slightly below. There are many galaxies to discover, but within about 10 degrees above and below the galactic level, visible light can not show them.

ESA / GAIA

Visible : This is what we normally do see billions of stars with light-blocking dust.

The SDSS view in the infrared – with APOGEE – the Milky Way towards the center. Infrared wavelengths of around 400 billion stars are best suited to seeing as many as possible because of their transparency to light-blocking dust.

Sloan Digital Sky Survey

Infrared : Eventually the covert stars are revealed.

This four-panel view shows the central area of ​​the Milky Way in four different wavelengths of light, with the longer wavelengths (submillimeters) going up through the far and near infrared (2nd and 3rd infrared). and end in a visible light of the Milky Way. Note that the dust streaks and the stars in the foreground cover the center in visible light, but less in the infrared range.

ESO / ATLASGAL Consortium / NASA / GLIMPSE Consortium / VVV Surveying / ESA / Planck / D. Minniti / S. Guisard Recognition: Ignacio Toledo, Martin Kornmesser

The long-wave nature of IR light makes it dust-permeable.

Mid-IR and Far-IR light reveals cooler gas and protostars.

The First Complete Sky Map The study published by the Planck collaboration reveals some extragalactic sources with a cosmic microwave background, but dominated by the microwave emissions of its own galaxy in the foreground: mostly in the form of dust, which is low but not negligible Temperatures are shining.

Planck's Collaboration / ESA, HFI and LFI Consortium

Microwaves : Just show heated dust.

The positions of the known fast bursts of radioactivity from 2013, including four found to prove the extra-tactics origins of these objects. The remaining radio emissions show the locations of galactic sources such as hydrogen gas and electrons.

MPIfR / C.Ng; Science / D. Thornton et al.

Radio : The lowest energy light reveals electrons and hydrogen gas.

This multiple-wave view of the galactic center of the Milky Way goes from X-rays through the optical to the X-ray infrared, which presents Sagittarius A * and the intragalactic medium about 25,000 light-years away. The black hole has a mass of about 4 million suns, while the Milky Way as a whole is less than a new Sun Star every year. Later this year, the EHT will use radio data to resolve the event horizon of the black hole. Note that even with images of assigned color it is difficult to unravel the different contributions of different wavelengths.

X-ray: NASA / CXC / UMass / D. Wang et al. Optical: NASA / ESA / STScI / D.Wang et al .; IR: NASA / JPL-Caltech / SSC / S.Stolovy

With so much information, they are better viewed in single wavelengths.

A multi-wavelength view of the Milky Way shows the presence of many different phases and states of normal matter far behind the stars we are used to seeing in visible light. The individual wavelengths shown here are separate and not mixed together, so we can display the information about each component.

NASA


Mostly Mute Monday describes an astronomical or scientific history in pictures, pictures and not more than 200 words. Less speech; more smile.

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