1 / 17

Understanding the SN2011bl Supernova: Classification, Spectroscopy, and Photometry Insights

This document provides detailed insights into the SN2011bl supernova, including its classification as a Type Ibc and the analysis of photometric and spectral data. It summarizes the early and nebular phases of SN2011bl, featuring various spectral observations and methodologies for supernova identification (SNID) using a comprehensive dataset. The findings contribute to our understanding of supernova evolution by comparing SN2011bl with historical data, specifically highlighting the significance of diverse spectral features observed during different phases of this celestial event.

naiara
Télécharger la présentation

Understanding the SN2011bl Supernova: Classification, Spectroscopy, and Photometry Insights

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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 .

More Related