Detection of heavy metals in the atmosphere of comet C/2016 R2

The detection of the heavy metals iron (Fe) and nickel (Ni) in the fuzzy atmosphere of a comet are illustrated in this image, which features the spectrum of light of C/2016 R2 (PANSTARRS) on the top left superimposed to a real image of the comet taken with the SPECULOOS telescope at ESO’s Paranal Observatory. Each white peak in the spectrum represents a different element, with those for iron and nickel indicated by blue and orange dashes, respectively. Spectra like these are possible thanks to the UVES instrument on ESO’s VLT, a high-resolution spectrograph that spreads the line so much they can be individually identified. In addition, UVES remains sensitive down to wavelengths of 300nm. Most of the important iron and nickel lines appear at wavelengths of around 350nm, meaning that the capabilities of UVES were essential in making this discovery.

Mynd/Myndskeið:

ESO/L. Calçada, SPECULOOS Team/E. Jehin, Manfroid et al.

Um myndina

Auðkenni:eso2108a
Tegund:Háskóli
Útgáfudagur:Maí 19, 2021, 17:00 CEST
Tengdar fréttatilkynningar:eso2108
Stærð:4000 x 2500 px

Um fyrirbærið

Nafn:C/2016 R2 (PANSTARRS)
Tegund:Solar System : Interplanetary Body : Comet
Flokkur:Solar System

Myndasnið

Stór JPEG
1,2 MB

Þysjanleg


Bakgrunnsmynd

1024x768
165,9 KB
1280x1024
254,8 KB
1600x1200
348,1 KB
1920x1200
408,7 KB
2048x1536
510,6 KB