File:First detection of molecular nitrogen at a comet ESA15318012.jpeg
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DescriptionFirst detection of molecular nitrogen at a comet ESA15318012.jpeg |
English: Rosetta has made the first detection of molecular nitrogen at a comet. The results provide clues about the temperature environment in which Comet 67P/Churyumov–Gerasimenko formed. The graph shows the variation in the signals measured for molecular nitrogen (N2) and carbon monoxide (CO) by Rosetta’s ROSINA instrument. The signals vary as a function of time, comet rotation and position of the spacecraft above the comet. An average ratio of N2/CO = (5.70 +/- 0.66) x 10–3 was determined for the period 17–23 October 2014. The minimum and maximum values measured were 1.7 x 10–3 and 1.6 x 10–2, respectively (note that the ratio cannot be derived directly from this graph – a correction factor accounting for the instrument sensitivity is applied). By comparing the ratio of N2 to CO at the comet with that of the protosolar nebula, it was determined that the comet must have formed at low temperatures, consistent with a Kuiper Belt origin. The study also finds that Jupiter-family comets like Comet 67P/ Churyumov–Gerasimenko were unlikely the source of Earth’s nitrogen. Full story: Rosetta makes first detection of molecular nitrogen at a comet |
Date | 19 March 2015 (upload date) |
Source | First detection of molecular nitrogen at a comet |
Author | European Space Agency |
Activity InfoField | Space Science |
Mission InfoField | Rosetta |
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This media was created by the European Space Agency (ESA).
Where expressly so stated, images or videos are covered by the Creative Commons Attribution-ShareAlike 3.0 IGO (CC BY-SA 3.0 IGO) licence, ESA being an Intergovernmental Organisation (IGO), as defined by the CC BY-SA 3.0 IGO licence. The user is allowed under the terms and conditions of the CC BY-SA 3.0 IGO license to Reproduce, Distribute and Publicly Perform the ESA images and videos released under CC BY-SA 3.0 IGO licence and the Adaptations thereof, without further explicit permission being necessary, for as long as the user complies with the conditions and restrictions set forth in the CC BY-SA 3.0 IGO licence, these including that:
See the ESA Creative Commons copyright notice for complete information, and this article for additional details.
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This file is licensed under the Creative Commons Attribution-ShareAlike 3.0 IGO license. Attribution: Spacecraft: ESA/ATG medialab; comet: ESA/Rosetta/NavCam –; Data: Rubin et al (2015), CC BY-SA IGO 3.0
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current | 21:20, 11 June 2020 | 2,667 × 1,667 (668 KB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2015/03/first_detection_of_molecular_nitrogen_at_a_comet/15318003-1-eng-GB/First_detection_of_molecular_nitrogen_at_a_comet.jpg via Commons:Spacemedia |
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