ISTITUTO NAZIONALE DI ASTROFISICA
18 Agosto 2017 [10:48]
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Evento Id: 465
Oratore:
various
Istituto:
INAF - Torino Astronomical Observatory, COSPAR Scientific Assembly
Dove: Mysore - India
Data & Ora: 14-06-2012 10:00 (durata: 9 days)
Titolo: COSPAR Event 2.1: Unveiling the Role of Small Scales in Solar Dynamic Phenomena
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Abstract:
Unveiling the Role of Small Scales in Solar Dynamic Phenomena
 
Main Scientific Organizer (MSO) and Deputy Organizer (DO)
 	Main Scientific Organizer:	Alessandro Bemporad
INAF - Torino Astronomical Observatory
Via Osservatorio, 20
10025 Pino Torinese (TO)
Italy
Tel: 39 011 8101 954
E-Mail: bemporad@oato.inaf.it

 	Deputy Organizer:	Susanna Parenti
Royal Observatory of Belgium
Royal Observatory of Belgium
1080 BRUXELLES
Belgium
E-Mail: s.parenti@oma.be

 
Description
 	

Unprecedent temporal and spatial resolution observations of the Sun's atmosphere acquired on ground and by the most recent space missions have demonstrated the importance of small scales in solar dynamic phenomena. Small-scale magnetic features are present everywhere in the solar photosphere and their progressive coalescence into larger magnetic concentrations could eventually results in the formation of active regions. Reconnections among magnetic elements may be a candidate to explain chromospheric spicules, whose dynamics is now studied in much more details at sub-arcsecond resolution. Small scale flux emergence may trigger reconnection events above the photosphere, leading to chromospheric surges, prominences eruptions and coronal mass ejections. EUV and X-ray telescopes have uncovered new small-scale eruptive events as those tentatively referred to as "mini-CMEs", associated on disk with "mini-waves", which have a strong similarity to the large-scale "EIT" waves. More in general, observations show that small-scale eruptive events occur continuously all over the Sun (such as chromospheric anemone jets, polar jets). High cadence data allowed also to study waves and quasi-periodic disturbances propagating off-limb through the corona, which might provide the additional momentum and heat required for the fast solar wind acceleration.The link between small and large scale solar dynamic phenomena, from the photosphere to the corona and heliosphere, is a key aspect for the identification of those physical mechanisms acting for the transport and deposition of energy in the corona and solar wind, as well as in the formation of the heliosphere. This Session will aim at collect observational and theoretical evidences for a possible unified picture of dynamic small and large scales phenomena: the role of small scales to the production of large scale events will be emphasized.
 
Confirmed Solicited Speakers
 	Dipankar, Banerjee (Indian Institute of Astrophysics, Koramangala, Bangalore 560034, India)
Judy, Karpen (NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA)
Masahito, Kubo (National Astronomical Observatory, Mitaka, Tokyo 181-8588, Japan)
Pietarila, Anna (National Solar Observatory, Tucson, AZ 85719, USA)
Luca, Teriaca (Max-Planck-Institut für Sonnensystemforschung (MPS), Max-Planck-Str. 2, 37191, Katlenburg-Lindau, Germany)
Andrei, Zhukov (Solar-Terrestrial Center of Excellence - SIDC, Royal Observatory of Belgium, Brussels, Belgium)
 
Organizing Committee
 	Giannina, Poletto (INAF-Arcetri Astrophysical Observatory, Italy)
Golub, Leon (Harvard-Smithsonian CFA, USA)
Hiroisa, Hara (National Astronomical Observatory of Japan, Japan)
Rob, Rutten (Institute of Theoretical Astrophysics, University of Oslo, Norway)
Sami, Solanki (Max-Planck-Institut für Sonnensystemforschung, Germany)
Alphonse, Sterling (Marshall Space Flight Center, USA) 
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Tipo di Evento: Congresso
Link: link
Presentazioni Disponibili:
Non fornita


 
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