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SUMMARY:Something new under the Sun: A magnetically driven CH/CN anti-corr
 elation
DTSTART:20261110T103000Z
DTEND:20261110T113000Z
DTSTAMP:20261109T095500Z
UID:indico-event-1965@indico.dfa.unipd.it
CONTACT:simone.zaggia@inaf.it
DESCRIPTION:Speakers: Yazan Al Momany (INAF/Padova -  Italian Embassy at U
 AE (Abu Dhabi))\n\n\n\nSpectroscopic monitoring surveys have shown that th
 e magnetic cycle alters the photospheric structure of the Sun\, perturbing
  the formation of molecular lines. In parallel\, the study of Globular Clu
 sters has remained centred on the multiple stellar populations conundrum\,
  a phenomenon defined-most notably-by the anti-correlation between CH and 
 CN molecular bands\, serving to distinguish between first-population and s
 econd-population stars. We systematically monitored the behaviour of the C
 H and CN molecular bands as a function of the solar magnetic cycle. We dem
 onstrate that the disc-integrated solar spectrum exhibits a distinct CH/CN
  anti-correlation driven by the magnetic cycle. Our results suggest that t
 he spectroscopic and photometric anomalies defining the multiple populatio
 ns conundrum may be physically linked to a differential spectral response 
 to varying degrees of surface magnetic coverage.\n \n\nJoin Zoom Meeting 
  \n \n\n\nhttps://unipd.zoom.us/j/5828340760?pwd=6jmmfQkNz1qXnnOzaEWzo9k
 uEunbhb.1 \n \nMeeting ID: 582 834 0760Passcode: Npsvx4\n\n\n\n\nhttps:
 //indico.dfa.unipd.it/event/1965/
LOCATION:Sala Jappelli (Osservatorio astronomico di Padova)
URL:https://indico.dfa.unipd.it/event/1965/
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