Beyond the AGB

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Beyond the AGB. My new E-mail: oscar.straniero@bastardini.com. ( not in the sense of stellar evolution ). Inputs: opacity, eos, neutrinos rate, thermonuclear rates. Outputs: Luminosity, effective temperature, chemical composition. Stellar model. Ba-star-dini head quarter. - PowerPoint PPT Presentation

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  • Beyond the AGB(not in the sense of stellar evolution)My new E-mail:oscar.straniero@bastardini.com

  • Stellar model

  • Sometime, ba-stards are lucky

  • Noise reduction at LNGS(shielding: 4000 m w.e.)Laboratory for Underground Nuclear Astrophysics

    RadiationLNGS/surfacemuonsneutronsPhotons10-610-30.2

  • The adopted set-up SPECIFICATIONS Umax= 50 400 kV I 500 mA for proton DEmax= 0.07 keV

  • The H burning p + p 2H + e+ + n [0.27 MeV] p + e- + p 2H + e+ + n [1.44 MeV]

    2H + p 3He + g

    3He + 3He 4He + 2p 3He + 4He 7Be + g 3He + p 4He + e+ + n

    7Be + e- 7Li + n [0.81 MeV] 7Be + p 8B + g

    7Li + p 8Be 8B 8Be + e+ + n [6.80 MeV]

    8Be 2 4He 8Be 2 4He99.75%0.25%86%14%99.89%0.11%CHAIN IIIQeff= 19.67 MeVCHAIN II Qeff= 25.66 MeVCHAIN IQeff = 26.20 MeVCHAIN IVQeff= 16.84 MeVpp chain210-5%LUNA 2001LUNA 1999NABONA 2000 & LUNA 2001ERNA & LUNANABONA

  • 14N(p,g)15O: the bottleneck of the CNO

  • Stellar Energies: the Gamows peak

  • Isochrones for Globular ClustersImbriani, Costantini, Formicola et al. , A&A, 420, 2004The age of the oldest Globular Clusters should be increased by about 0.7-1 GyrV - I

  • Straniero et al. 1999fromVI TORINO WORKSHOPROMEEd. by Franca DAntona

  • Further Adventures12C(a,g)16O @ ERNA

    25Mg(p,g)26Al @ LUNA

    Coming soon

  • M-R relation:high rate = shorter C burning = more compact progenitorOnset of core collapseBeginning of Ne-burningFrom Imbriani et al. 2001 ApJ 558,903

  • YieldsAffected by the steepness M-R relationAffected by the amount of C available for shell burning

  • NOW, ON THE TOP. and ON THE ICE

  • CW-Leo: a red lighthouseReflected V light

  • StardustGrain signatures are more clear above 3 m

  • Courtesy of Busso & Co

  • The IRAIT project, a Italian-Spanish collaboration

  • CONCORDIA (3200 m)

  • The Robotic Telescope

  • Riunione IRAIT-AMICARoma, 27 Gennaio 2006AMICAAntarctic Multiband Infrared CAmera

  • I due rivelatori di AMICASWA (1-5 m)Array InSb 256 x 256 Raytheon Corp.LWA (5-28 m)Array Si:As BIB MF-128 DRS Techn. Inc.Top 25 - 35 KTop 4 - 10 KRiunione IRAIT-AMICARoma, 27 Gennaio 2006

  • entrance windowLWASWAfolding mirrorexit pupilcollimator mirrorcamera mirrorsliding mirror330 mm150 mmRiunione IRAIT-AMICARoma, 27 Gennaio 2006

  • Sistema ottico di AMICA Sistema completamente riflettente 4 specchi dorati (2 parabole fuori asse + 2 piani) Riduttore di focale 1 : 1.47 Diffraction-limited performances Campionamento ottimale PSF di Airy a 3 m su SWA e a 10 m su LWA Scala:0.538 arcsec / pix (SWA)1.345 arcsec / pix(LWA) FOV:2.29 2.29 arcmin2 (SWA)2.87 2.87 arcmin2 (LWA)Riunione IRAIT-AMICARoma, 27 Gennaio 2006

  • Finestra dingresso e filtri Finestra in CdTe ad alta trasmissione (>70 % tra 1 e 25 m) Filtri in quarzo (
  • ARS Displex Closed Cycle Cryocooler DE-210S with ARS-10 Compressor2nd stage: 0.8 W @ 4.2 K1st stage: 35 W @ 41 KMin temp.: 0 W @ 2.8 KType: GMCooling: Water, CUSTOMPower consumption: 6 kW @ 200 V AC, 3 phase, 50 HzAmbient temperature range: 5 to 35CCooling water: Minimum flow 8 LPM @ 27C maximum temperatureRiunione IRAIT-AMICARoma, 27 Gennaio 2006IMPORTANTE: Serie di cryocooler gi sperimentati in Antartide.

  • Riunione IRAIT-AMICARoma, 27 Gennaio 2006

  • An ExampleRiunione IRAIT-AMICARoma, 27 Gennaio 2006

  • http://www.te.astro.it/attivitascientifica/progetti/amica/index.htm