The enhancement of carbon-14 in tree rings around AD 774/775 has generated wide interest in solar activity at that time. The historical auroral records have been examined critically. Of particular interest was the “white vapour” observed in China on AD 776 January 12/13. Both Usoskin et al. (Astron. Astrophys.55, L3, 2013; U13) and Stephenson (Adv. Space Res.55, 1537, 2015; S15) interpreted this record as an auroral display. Subsequently, Neuhäuser and Neuhäuser (Astron. Nachr.336, 225, 2015; NN15) proposed five “criteria” for the likeliness of aurorae and on this basis rejected an auroral interpretation. Instead, they interpreted it as a lunar halo, and suggested there were no auroral records as a proxy of solar activity in the interval AD...
Early astronomical records of comets, supernovae, novae, sunspots and aurorae from Far Eastern dynas...
Incursions of high-energy particles from space, specifically solar energetic particles and galactic ...
Papers are presented concerning theories of solar variability and their consequences for luminosity,...
The enhancement of carbon-14 in tree rings around AD 774/775 has generated wide interest in solar ac...
Given that a strong 14C variation in AD 775 has recently been suggested to be due to the largest sol...
Auroral records found in historical archives and cosmogenic isotopes found in natural archives have ...
International audienceThe validity of a technique developed by the authors to identify historical oc...
International audienceEarly auroral observations recorded in various oriental histories are examined...
More than 5000 meteors were recorded in ancient Chinese chronicles. The frequency of meteor sighting...
International audienceComprehensive catalogues of ancient sunspot and auroral observations from East...
International audienceAll the accessible auroral observations recorded in Chinese and Japanese histo...
The anomalous concentration of radiocarbon in 774/775 attracted intense discussion on its origin, in...
Arches, streamers, polar lights, merry dancers… just a few of many names used to describe the aurora...
Incursions of high-energy particles from space, specifically solar energetic particles and galactic ...
The astronomical diaries from Babylonia (ADB) are excellent sources of information of natural phenom...
Early astronomical records of comets, supernovae, novae, sunspots and aurorae from Far Eastern dynas...
Incursions of high-energy particles from space, specifically solar energetic particles and galactic ...
Papers are presented concerning theories of solar variability and their consequences for luminosity,...
The enhancement of carbon-14 in tree rings around AD 774/775 has generated wide interest in solar ac...
Given that a strong 14C variation in AD 775 has recently been suggested to be due to the largest sol...
Auroral records found in historical archives and cosmogenic isotopes found in natural archives have ...
International audienceThe validity of a technique developed by the authors to identify historical oc...
International audienceEarly auroral observations recorded in various oriental histories are examined...
More than 5000 meteors were recorded in ancient Chinese chronicles. The frequency of meteor sighting...
International audienceComprehensive catalogues of ancient sunspot and auroral observations from East...
International audienceAll the accessible auroral observations recorded in Chinese and Japanese histo...
The anomalous concentration of radiocarbon in 774/775 attracted intense discussion on its origin, in...
Arches, streamers, polar lights, merry dancers… just a few of many names used to describe the aurora...
Incursions of high-energy particles from space, specifically solar energetic particles and galactic ...
The astronomical diaries from Babylonia (ADB) are excellent sources of information of natural phenom...
Early astronomical records of comets, supernovae, novae, sunspots and aurorae from Far Eastern dynas...
Incursions of high-energy particles from space, specifically solar energetic particles and galactic ...
Papers are presented concerning theories of solar variability and their consequences for luminosity,...