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illustration image for  Exoplanet in a box

Exoplanet in a box

astroEDU educational activity (links to astroEDU website)
Description: Build a "transit simulator" in a box using some very simple material and your cell phone!

Termes del glossari: Exoplanet
Categories: Exoplanets & Astrobiology , Observational Astronomy , Telescopes, Instruments and Observatories
Age Ranges: 14-16 , 16-19
Education Level: Secondary , University
Areas of Learning: Modelling , Observation based , Project-based learning , Structured-inquiry learning , Technology-based
Costs: Low Cost
Duration: 3-6 hours
Group Size: Group
Skills: Analysing and interpreting data , Asking questions , Developing and using models , Planning and carrying out investigations
Authors: Hassane Darhmaoui, Zakaria Belha

License: Creative Commons Reconeixement 4.0 Internacional (CC BY 4.0) Creative Commons Reconeixement 4.0 Internacional (CC BY 4.0) icons


illustration image for  Can you find the exoplanet?

Can you find the exoplanet?

astroEDU educational activity (links to astroEDU website)
Description: Find the exoplanet and determine its size using data from the Spitzer Space Telescope!

Termes del glossari: Exoplanet
Categories: Exoplanets & Astrobiology , Mathematics , Observational Astronomy
Age Ranges: 14-16 , 16-19
Education Level: Secondary
Areas of Learning: Guided-discovery learning , Modelling , Observation based , Problem-solving , Structured-inquiry learning , Technology-based
Costs: Free
Duration: 3 hours
Skills: Analysing and interpreting data , Asking questions , Using mathematics and computational thinking
Authors: Roger Ferlet, Anne-Laure Melchior, Emmanuel Rollinde

License: Creative Commons Reconeixement 4.0 Internacional (CC BY 4.0) Creative Commons Reconeixement 4.0 Internacional (CC BY 4.0) icons


A series of light and dark rings that resemble an archery target around the star TW Hydrae

Planet formation around the star TW Hydrae

image

Caption: This image shows the disk around the young star TW Hydrae. This star is only about 10 million years old, young enough that planets are still forming in a disk of gas and dust around it. This image was created using an array of submillimetre telescopes, each of which looks like a satellite dish. The signals from these telescopes were combined by a central processing computer to make this image. The lighter and darker patches show areas of the disk where there is more or less dust respectively. The dark rings and bright rings are evidence that the dust in the disk has been shepherded into some orbits and away from others. This is likely because there is one or more planets that are still forming hidden in the disk. The whole image shows the disk around TW Hydrae out to a distance of about 70 astronomical units frm the central star. The two outer dark rings are separated from the central star by approximately the average distance between the Sun and Uranus and the average distance between the Sun and Pluto. The inner central hole appears to have been carved out by a planet orbiting TW Hydrae at a distance similar to the distance between the Earth and the Sun.
Credit: S. Andrews (Harvard-Smithsonian CfA); B. Saxton (NRAO/AUI/NSF); ALMA (ESO/NAOJ/NRAO)
Credit Link

Termes del glossari: Planet Formation
Categories: Exoplanets & Astrobiology

License: Creative Commons Reconeixement 4.0 Internacional (CC BY 4.0) Creative Commons Reconeixement 4.0 Internacional (CC BY 4.0) icons

Arxiu ( image 210.48 kB)


beta Pictoris b moves from bottom right towards the center of the image, reappearing 22 months later on the top left

The orbit of beta Pictoris b

image

Caption: This series of images shows the orbital motion of the extrasolar planet (exoplanet) beta Pictoris b. The planet is the bright dot in each image. The planet's host star is hidden behind the black circle in the middle of each image. This is done to remove the much brighter host star which would otherwise drown out the light from the planet. The planet's orbit is viewed edge-on. Seeing the orbit from this perspective makes it look like the planet moves along a straight line. Between February 2015 and November 2016 beta Pictoris b appears to move closer and closer to its host star. The planet then moved so close to the star that it was not seen for almost two years, after which it reappeared on the other side of the star.
Credit: ESO/Lagrange/SPHERE consortium
Credit Link

Termes del glossari: Exoplanet , Orbit
Categories: Exoplanets & Astrobiology

Language: English
Script: Latin

License: Creative Commons Reconeixement 4.0 Internacional (CC BY 4.0) Creative Commons Reconeixement 4.0 Internacional (CC BY 4.0) icons

Arxiu ( image 710.17 kB)


The planet beta Pictoris b is a bright dot close to its parent star. Around this we see a warm disk edge-on

beta Pictoris b

image

Caption: This composite of two images shows the planet beta Pictoris b and a disk of material both of which orbit the young star beta Pictoris. Both are taken in infrared light. The inner image was one of the first pictures taken of a planet around another star (an exoplanet). This image was made using a technique called adaptive optics which removes the blurring effect of the Earth's atmosphere that spreads out a star's light. The star's light is then concentrated tightly enough that it can be hidden behind a blocking circle (shown here in black) called a coronagraph. The ripples around this are artifacts of the imaging process. Beta Pictoris b, a gas giant planet about twelve times the mass of Jupiter, appears as a dot above and to the left of the black circle. The outer image shows the thermal emission from the warm disk of material surrounding the young star beta Pictoris. As we are viewing this disk edge-on it appears as a line. This disk of gas and dust provided the material to form beta Pictoris b.
Credit: ESO/A.-M. Lagrange et al.
Credit Link

Termes del glossari: Exoplanet , Planet Formation , Adaptive Optics
Categories: Exoplanets & Astrobiology

License: Creative Commons Reconeixement 4.0 Internacional (CC BY 4.0) Creative Commons Reconeixement 4.0 Internacional (CC BY 4.0) icons

Arxiu ( image 128.05 kB)


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