Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/24182
Titolo: | The visual binary AG Tri in β Pictoris association: can a debris disc cause very different rotation periods of its components? | Autori: | MESSINA, Sergio Muro Serrano, Miguel Artemenko, Svetlana Bailey, John I. Savushkin, Alexander Nelson, Robert H. |
Data pubblicazione: | 2015 | Rivista: | ASTROPHYSICS AND SPACE SCIENCE | Numero: | 360 | Fascicolo: | 2 | Da pagina:: | 17 | Abstract: | We measure the photometric rotation periods of the components of multiple systems in young stellar associations to investigate the causes of the observed rotation period dispersion. We present the case of the wide binary AG Tri in the 23-Myr young β Pictoris Association consisting of K4 + M1 dwarfs. Our multi-band, multi-season photometric monitoring allowed us to measure the rotation periods of both components P<SUB>A</SUB> = 12.4d and P<SUB>B</SUB> = 4.66d, to detect a prominent magnetic activity in the photosphere, likely responsible for the measured radial velocity variations, and for the first time, a flare event on the M1 component AG Tri B. We investigate either the possibility that the faster rotating component may have suffered an enhanced primordial disc dispersal, starting its PMS spin-up earlier than the slower rotating component, or the possibility that the formation of a debris disc may have prevented AG Tri A from gaining part of the angular momentum from the accreting disc. | URI: | http://hdl.handle.net/20.500.12386/24182 | URL: | https://link.springer.com/article/10.1007/s10509-015-2561-7 | ISSN: | 0004-640X | DOI: | 10.1007/s10509-015-2561-7 | Bibcode ADS: | 2015Ap&SS.360...51M | Fulltext: | open |
È visualizzato nelle collezioni: | 1.01 Articoli in rivista |
File in questo documento:
File | Descrizione | Dimensioni | Formato | |
---|---|---|---|---|
ASS_1510.08994.pdf | preprint | 3.6 MB | Adobe PDF | Visualizza/apri |
Messina 2015_ ApSS..360...51-AG_Tri.pdf | [Administrators only] | 2.26 MB | Adobe PDF |
Page view(s)
50
controllato il 19-apr-2024
Download(s)
15
controllato il 19-apr-2024
Google ScholarTM
Check
Altmetric
Altmetric
Tutti i documenti in DSpace sono pubblicati ad Accesso Aperto, salvo diversa indicazione per alcuni documenti specifici.