Edwards, B;
Changeat, Q;
Yip, KH;
Tsiaras, A;
Taylor, J;
Akhtar, B;
AlDaghir, J;
... Tennyson, J; + view all
(2020)
Original Research By Young Twinkle Students (ORBYTS): Ephemeris Refinement of Transiting Exoplanets.
Monthly Notices of the Royal Astronomical Society
10.1093/mnras/staa1245.
(In press).
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Abstract
We report follow-up observations of transiting exoplanets that have either large uncertainties (>10 minutes) in their transit times or have not been observed for over three years. A fully robotic ground-based telescope network, observations from citizen astronomers and data from TESS have been used to study eight planets, refining their ephemeris and orbital data. Such follow-up observations are key for ensuring accurate transit times for upcoming ground and space-based telescopes which may seek to characterise the atmospheres of these planets. We find deviations from the expected transit time for all planets, with transits occurring outside the 1 sigma uncertainties for seven planets. Using the newly acquired observations, we subsequently refine their periods and reduce the current predicted ephemeris uncertainties to 0.28 - 4.01 minutes. A significant portion of this work has been completed by students at two high schools in London as part of the Original Research By Young Twinkle Students (ORBYTS) programme.
| Type: | Article |
|---|---|
| Title: | Original Research By Young Twinkle Students (ORBYTS): Ephemeris Refinement of Transiting Exoplanets |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1093/mnras/staa1245 |
| Publisher version: | http://dx.doi.org/10.1093/mnras/staa1245 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | astro-ph.EP, astro-ph.EP, physics.ed-ph |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10097319 |
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