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The Diversity of Type Ia Supernovae: Evidence for Systematics?
- S. Benetti, E. Cappellaro, V. Stanishev
- Physics
- 2 November 2004
The photometric and spectroscopic properties of 26 well-observed Type Ia Supernovae (SNe Ia) were analyzed with the aim of exploring SN Ia diversity. The sample includes (Branch) normal SNe, as well…
A hypernova model for the supernova associated with the γ-ray burst of 25 April 1998
- K. Iwamoto, P. Mazzali, F. Frontera
- PhysicsNature
- 30 June 1998
The discovery of the unusual supernova SN1998bw, and its possible association with the γ-ray burst GRB 980425, provide new insights into the explosion mechanism of very massive stars and the origin…
Low‐luminosity Type II supernovae: spectroscopic and photometric evolution
- A. Pastorello, L. Zampieri, Marco Riello
- Physics
- 9 September 2003
In this paper we present spectroscopic and photometric observations for four core-collapsed supernovae (SNe), namely SNe 1994N, 1999br, 1999eu and 2001dc. Together with SN 1997D, we show that they…
Photometry and Spectroscopy of the Type IIP SN 1999em from Outburst to Dust Formation
- A. Elmhamdi, I. J. Danziger, M. Salvo
- Physics
- 1 February 2003
We present photometry and spectra of the Type IIP supernova 1999em in NGC 1637 from several days after the outburst till day 642. The radioactive tail of the recovered bolometric light curve of SN…
Cepheid calibration of Type Ia supernovae and the Hubble constant
- G. Altavilla, G. Fiorentino, L. Zampieri
- Physics
- 14 January 2004
We investigate how a different calibration of the Cepheid period-luminosity (PL) relation, taking into account metallicity corrections, affects the absolute magnitude calibration of Type Ia…
Spectroscopic identification of r-process nucleosynthesis in a double neutron-star merger
- E. Pian, P. D’Avanzo, D. Vergani
- PhysicsNature
- 16 October 2017
TLDR
Detection of Circumstellar Material in a Normal Type Ia Supernova
- F. Patat, P. Chandra, M. Turatto
- Physics, GeologyScience
- 18 July 2007
TLDR
High luminosity, slow ejecta and persistent carbon lines: SN 2009dc challenges thermonuclear explosion scenarios
- S. Taubenberger, S. Benetti, W. Hillebrandt
- Physics
- 25 November 2010
Extended optical and near-IR observations reveal that SN 2009dc shares a number of similarities with normal Type Ia supernovae (SNe Ia), but is clearly overluminous, with a (pseudo-bolometric) peak…
A giant outburst two years before the core-collapse of a massive star
- A. Pastorello, S. Smartt, L. Zampieri
- PhysicsNature
- 27 March 2007
TLDR
The Metamorphosis of SN 1998bw
- F. Patat, E. Cappellaro, E. Pian
- Physics
- 7 March 2001
We present and discuss the photometric and spectroscopic evolution of the peculiar SN 1998bw, associated with GRB 980425, through an analysis of optical and near-IR data collected at ESOLa Silla. The…
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