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SNIa templates and SN2011bl

SNIa templates and SN2011bl. Derek Baugh Fri. Dec. 6th. SN Taxonomy. Photometry Spectroscopy. SNIbc Evolution. SN2004aw S.Taubenberger Early phases: blueish ample features Nebular phases: flattened sparse features. SN2011bl.

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SNIa templates and SN2011bl

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  1. SNIa templates and SN2011bl Derek Baugh Fri. Dec. 6th

  2. SN Taxonomy Photometry Spectroscopy

  3. SNIbc Evolution • SN2004aw S.Taubenberger • Early phases: blueish ample features • Nebular phases: flattened sparse features

  4. SN2011bl • LOSS/KAIT April 5.41 • Ibc mag = 16.9 • UGC 8554 z = 0.025 • SNF 9 spectra 4.12 to 5.30 • ESO/TNG 4.10 to 12.23 • Joseph Brimacombe • Proposal Submitted

  5. SNID Supernova Identification Estimate type , redshift and phase for a given SN spectrum . Reads in a data file : wavelength vs flux Compares to 1515 spectra from 111 objects Various options available for setting parameters Blondin and Tonry 2007

  6. SNID Supernova Identification

  7. SNID results for SN2011bl

  8. GEneric CLAssification Tool Padova Observatory Harutyunyan et al. 2005

  9. SNF Supernova Factory • Training Sample Data • 62 Type Ia • 0.007 < z < 0.11 • -12.3 < day < +55.3 • 3200-5100 , 5000-9700 blue red • Restframe spectra : Dereddened, deredshifted, resampled to B, merged.

  10. The 62 spectra nearest to zero phase

  11. SNF Ia mean spectrum

  12. Hsiao SNIa Template E.Y.Hsiao 2007 • 106 spectra , -20 to +85 days • SNLS,ESSENCE, SUSPECT • More spectra around zero day for SNF

  13. Nugent SNIa Template • -15 to +53 days • Spectra not as plentiful as for Hsiao and SNF • May be improved upon at a later date

  14. The end .

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