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Three NASA Telescopes Look at an Angry Young Star Together

Science is a shared endeavor. We learn more when we work together. Today, July 18, we’re using three different space telescopes to observe the same star/planet system!

As our Transiting Exoplanet Survey Satellite (TESS) enters its third year of observations, it’s taking a new look at a familiar system this month. And today it won’t be alone. Astronomers are looking at AU Microscopii, a young fiery nearby star – about 22 million years old – with the TESS, NICER and Swift observatories.

TESS will be looking for more transits – the passage of a planet across a star – of a recently-discovered exoplanet lurking in the dust of AU Microscopii (called AU Mic for short). Astronomers think there may be other worlds in this active system, as well!

Our Neutron star Interior Composition Explorer (NICER) telescope on the International Space Station will also focus on AU Mic today. While NICER is designed to study neutron stars, the collapsed remains of massive stars that exploded as supernovae, it can study other X-ray sources, too. Scientists hope to observe stellar flares by looking at the star with its high-precision X-ray instrument.

Scientists aren’t sure where the X-rays are coming from on AU Mic — it could be from a stellar corona or magnetic hot spots. If it’s from hot spots, NICER might not see the planet transit, unless it happens to pass over one of those spots, then it could see a big dip!

A different team of astronomers will use our Neil Gehrels Swift Observatory to peer at AU Mic in X-ray and UV to monitor for high-energy flares while TESS simultaneously observes the transiting planet in the visible spectrum. Stellar flares like those of AU Mic can bathe planets in radiation.

Studying high-energy flares from AU Mic with Swift will help us understand the flare-rate over time, which will help with models of the planet’s atmosphere and the system’s space weather. There’s even a (very) small chance for Swift to see a hint of the planet’s transit!

The flares that a star produces can have a direct impact on orbiting planets’ atmospheres. The high-energy photons and particles associated with flares can alter the chemical makeup of a planet’s atmosphere and erode it away over time.

Another time TESS teamed up with a different spacecraft, it discovered a hidden exoplanet, a planet beyond our solar system called AU Mic b, with the now-retired Spitzer Space Telescope. That notable discovery inspired our latest poster! It’s free to download in English and Spanish.

Spitzer’s infrared instrument was ideal for peering at dusty systems! Astronomers are still using data from Spitzer to make discoveries. In fact, the James Webb Space Telescope will carry on similar study and observe AU Mic after it launches next year.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com

This is me

anime_irl

It was such a beautiful scene

“The lingering chilly wind after the rain clears tells that winter is on its way. But the warmth in my chest proves that the light surely burns. Though it’s so tiny that it might go out with a slight puff of air, it surely burns.”

Fruits Basket S2 EP15

more than perfect!!

he is perfect

IRIDE AKATSUKI ICONS

Naka no Hito Genome

like or reblog if you save

Happy Birthday, Dokja!

The Wallpaper available at Munpia illust_event:

The event would go on from 15th to 16th. I don't know much about it. But apparently a Dokja figurine is on the way-

This would be my first time celebrating his birthday after getting into the famdom.

I mean, he is my favourite character already, at this point. One of the best characters and story that I've come across! I'm really glad that I read this novel! * sheds tears *

I kinda wrote a fic:

Yeah, I know, not good. But oh well.

P.S: The irony that his birthday falls on Singles Awareness Day... Also, he might be 30 now...

One of the new pictures Temari shared via Twitter on Yuuri’s birthday

Pete, you gotta let go, I’m gonna catch you.

mo dao zu shi || 天子笑

“it’s emperor’s smile! if i share a jar with you, can you pretend that you never saw me?”