Efficient Follow-Up of Exoplanet Transits Using Small Telescopes

In summary, this paper introduces an online tool for predicting exoplanet transit light curves using differential time-series photometry. The tool enables non-specialists to make robust plans for observing exoplanet transits, increasing the number of captured observations. It can also be used for planning variable star observations.
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1903.11078.pdf

Would it not be cool to find an exoplanet from your back lawn.

This paper is to introduce an online tool1 for the prediction of exoplanet transit light curves. Small telescopes can readily capture exoplanet transits under good weather conditions when the combination of a bright star and a large transiting exoplanet results in a significant depth of transit. However, in reality there are many considerations that need to be made in order to obtain useful measurements. This paper and accompanying website layout a procedure based on differential time-series photometry that has been successfully employed using 0.4m aperture telescopes to predict the expected precision for a whole light curve. This enables robust planning to decide whether the observation of a particular exoplanet transit should be attempted and in particular to be able to readily see when it should not be attempted. This may result in a significant increase in the number of transit observations captured by non-specialists. The technique and website are also appropriate for planning a variety of variable star observations where a prediction of the light curve can be made.
 
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1. What is the purpose of studying exoplanet transits?

The purpose of studying exoplanet transits is to detect and characterize planets outside of our solar system. This can provide valuable information about the diversity of planetary systems and their formation processes.

2. Why is it important to use small telescopes for efficient follow-up of exoplanet transits?

Small telescopes are important for efficient follow-up of exoplanet transits because they are more cost-effective and can be used for longer periods of time compared to larger telescopes. This allows for more frequent observations and increases the chances of detecting exoplanet transits.

3. How do scientists detect exoplanet transits using small telescopes?

Scientists use a technique called photometry to detect exoplanet transits using small telescopes. This involves measuring the brightness of a star over time and looking for periodic dips in brightness that could indicate the presence of an orbiting planet.

4. What challenges do scientists face when using small telescopes for exoplanet transit follow-up?

One of the main challenges is the limited sensitivity and resolution of small telescopes, which can make it difficult to detect small changes in brightness caused by exoplanet transits. Additionally, weather conditions and light pollution can also affect the quality of observations.

5. How can efficient follow-up of exoplanet transits using small telescopes contribute to our understanding of exoplanets?

Efficient follow-up of exoplanet transits using small telescopes can contribute to our understanding of exoplanets by providing more data on their orbital and physical characteristics. This can help us to better understand the diversity of exoplanets and their potential for hosting life.

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