DLR Institute of Planetary Research - Extrasolar Planets and Atmospheres

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SPECULOOS

3 November 2022
During Berlin Science Week 2022, there was an event dedicated to exoplanets. The Belgian Embassy had invited Michael Gillon from the University of Liège and Heike Rauer (DLR) to speak. What is the connection between this and the Christmas biscuit Spekulatius? Read here!

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White clover can convert atmospheric nitrogen so that it is available to the plant. This also produces nitrous oxide.

Is nitrous oxide a good biosignature?

October 11, 2022
Nitrous oxide is produced on Earth mainly through the metabolism of microbes. In this respect, is is a very hot candidate for biosignatures. Biosignatures are molecules that indicate life and have measureable spectral features. As N2O has spectral features in the near and mid infrared region, JWST might be able to measure it. But what are conditions which would favour a detection by JWST in a planet's atmosphere?

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	Exoplanets and the James-Webb-Space-Telescope August 8, 2022 JWST has performed the first transit measurement of an exoplanet and of its atmospheric composition. But the list of exoplanets scientists like to inverstigate with JWST is long.
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	Punctuality desired July 27, 2022 If you want to observe planetary atmospheres with a space telescope, you have to know the time of a transit, otherwise you waste precious observation time. CHEOPS measurements allow to predict the transits of the planet K2-139b very accurately.
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	Planet Hunters NGTS: vier Kandidaten 14. Juli 2022 Das Citizen Science Projekt Planet Hunters NGTS hat seine ersten Planetenkandidaten gefunden. Vier Lichtkurven wurden jetzt auf dem National Astronomy Meeting an der Universität Warwick präsentiert.
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	"Vielleicht sehen wir eine Erde der Zukunft" 26. Juni 2022 Interview mit Heike Rauer über die PLATO-Weltraummission - ein Artikel in Spektrum.de
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	How many Earth-like planets will PLATO detect? June 22, 2022 The question of a second Earth dominates in the media when it comes to extrasolar planets. A recently published paper a study shows detailed estimations how many planets could be found in the habitable zone of Sun-like stars.
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	Lehrerfortbildung: Exoplaneten 24. Mai 2022 Exoplaneten, das ist ein spannendes Thema, auch in der Schule. Dazu fand am 24. Mai eine Lehrerfortbildung in unserem Institut statt. Neben den Grundlagen dieser sich rasant entwickelnden Forschung wurde ein Citizen-Science-Projekt gezeigt. mit dem man vielleicht selber einen Exoplaneten entdecken kann.
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	Wie kommt der Lavaplanet an seinen Platz? 3. Mai 2022 Der neu entdeckte Exoplanet TOI-500b ist zwar nicht ganz so leicht und ganz so schwer wie GJ 367b, über den wir im Dezember berichteten. Aber er gehört zu einem hochinteressanten Planetensystem, aus dessen Architektur man auf die Entstehung und Entwicklung schließen kann.
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	Transit-Search for Volunteers February 11, 2022 it is easy to describe what a transit is: a star changes its brightness regularly because a planet passes by it. But what do measured data really look like and which patterns are really due to transiting planets? The Citizen Science Project "Planet Hunters NGTS" invites you to participate.
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	A Golden Era Starts February 2, 2022 The launch of the James Webb Space Telescope marks the beginning of a new era for exoplanet research. The instruments on board JWST will be able to determine the chemical composition of exoplanetary atmospheres and possibly find biosignatures.
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