PNG
IHDR %"CC iTXtXML:com.adobe.xmp
Baltimore
USA
3700 San Martin Drive
21218
MD
outreach@stsci.edu
410-338-4444
http://stsci.edu
distance in lightyears
196
Hubble
2023-011b
Good
STIS/MIRVIS
2023-04-25
1.2
STScI
stsci
https://hubblesite.org/contents/news-releases/2023/news-2023-011
STSCI-H-p23011b-f-1452x726.png
https://stsci-opo.org/STScI-01GYWXQCZNRRTNYXDFHF3N5R3T.png
ICRS
Position
165.4662725
-34.7047310
Optical
574
Orange
B.3.7.2.1
Observation
Space Telescope Science Institute Office of Public Outreach
Our universe is so capricious it sometimes likes to play a game of hide and seek. In 2017 astronomers were surprised to see a huge shadow sweeping across a disk of dust and gas encircling the nearby young star TW Hydrae. The shadow is cast by an inner disk of dust and gas that is slightly tilted to the plane of the outer disk. The shadow can only be clearly seen because the system is tilted face-on to Earth, giving astronomers a bird’s-eye view of the disk as the shadow sweeps around the disk like a hand moving around a clock.
But a clock has two hands (hours and minutes) sweeping around at different rates. And, it turns out, so does TW Hydrae. Astronomers used Hubble to find a second shadow emerging from yet another inner disk, that is tilted to the two outer disks. So the system looks increasingly complicated with at least three nested disks slightly tilted relative to each other. The disks are proxies for unseen planets around the star. Each planet is gravitationally pulling on material near the star an warping what would have been a perfectly flat pancake-disk if no planets were present. This is not a surprise because the planets in our solar system have orbital planes that vary in tilt by a few degrees from each other. TW Hydrae gives astronomers a ringside seat to how our solar system may have looked during its formative years.
image/png
TW Hydrae
HUBBLE FOLLOWS SHADOW PLAY AROUND PLANET-FORMING DISK
1
0231
1452
726
3
NASA, ESA, STScI, J. Debes (STScI); Image Processing: Joseph DePasquale (STScI)
2023-05-04T00:00:00
Unseen Newborn Planets Are Stirring Up Dust Around A Young Sta
sRGB IEC61966-2.1
7FA2F89BDD1BD8FECB2E1D38F33E2EB2
STScI
8
8
8
726
1452
1
2
2
3
7198/100
7198/100
2023-03-21T11:56:37-04:00
2023-04-25T15:14:38-04:00
FD7CE3EA77E82EFC46401AB061742D50
saved
/metadata
xmp.iid:c3e22d50-65ba-4208-b1fb-429c65a11d3b
Adobe Bridge 2023
2023-04-25T15:14:38-04:00
xmp.iid:c3e22d50-65ba-4208-b1fb-429c65a11d3b
FD7CE3EA77E82EFC46401AB061742D50
http://stsci.edu/copyright/
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