Tycho Brahe’s 1572 supernova as a standard type Ia as revealed by its light-echo spectrum

@article{Krause2008TychoB1,
  title={Tycho Brahe’s 1572 supernova as a standard type Ia as revealed by its light-echo spectrum},
  author={Oliver Krause and Masaomi Tanaka and Tomonori Usuda and Takashi Hattori and Miwa Goto and Stephan M. Birkmann and Ken’ichi Nomoto},
  journal={Nature},
  year={2008},
  volume={456},
  pages={617-619}
}
Type Ia supernovae are thermonuclear explosions of white dwarf stars in close binary systems. They play an important role as cosmological distance indicators and have led to the discovery of the accelerated expansion of the Universe. Among the most important unsolved questions about supernovae are how the explosion actually proceeds and whether accretion occurs from a companion or by the merging of two white dwarfs. Tycho Brahe’s supernova of 1572 (SN 1572) is thought to be one of the best… 
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References

SHOWING 1-10 OF 35 REFERENCES
The binary progenitor of Tycho Brahe's 1572 supernova
TLDR
A survey of the central region of Tycho's supernova remnant, around the position of the explosion, finds a type G0–G2 star, similar to the authors' Sun in surface temperature and luminosity (but lower surface gravity), which appears to be the surviving companion of the supernova.
Tycho Brahe's Supernova: Light from Centuries Past
The light curve of SN 1572 is described in the terms used nowadays to characterize Type Ia supernovae (SNe Ia). By assembling the records of the observations done in 1572-1574 and evaluating their
THE CHEMICAL ABUNDANCES OF TYCHO G IN SUPERNOVA REMNANT 1572
We present an analysis of the chemical abundances of the star Tycho G in the direction of the remnant of supernova (SN) 1572, based on Keck high-resolution optical spectra. The stellar parameters of
Scattered-Light Echoes from the Historical Galactic Supernovae Cassiopeia A and Tycho (SN 1572)
We report the discovery of an extensive system of scattered-light echo arclets associated with the recent supernovae in the local neighborhood of the Milky Way: Tycho (SN 1572) and Cassiopeia A.
Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
We present spectral and photometric observations of 10 Type Ia supernovae (SNe Ia) in the redshift range 0.16 ≤ z ≤ 0.62. The luminosity distances of these objects are determined by methods that
The Cassiopeia A Supernova Was of Type IIb
TLDR
The spectrum shows that Cassiopeia A was a type IIb supernova and originated from the collapse of the helium core of a red supergiant that had lost most of its hydrogen envelope before exploding.
Comparative Direct Analysis of Type Ia Supernova Spectra
As the first step in a comprehensive, comparative, direct analysis of the spectra of Type Ia supernovae (SNe Ia), we use the parameterized supernova synthetic‐spectrum code SYNOW to interpret 26
Internal dynamics and particle acceleration in Tycho's SNR
Aims. The consequences of a newly suggested value for the SN explosion energy E sn = 1.2 $\times$ 10 51  erg are explored for the case of Tycho's supernova remnant (SNR). Methods. A nonlinear kinetic
The peculiar type Ia SN 1991T : detonation of a white dwarf ?
SN 1991T was a peculiar object whose premaximum optical spectrum did not resemble that of any known supernova; it appears to have been dominated by lines of iron-group elements. Near maximum
Accreting white dwarf models for type I supernovae. III. Carbon deflagration supernovae
The carbon deflagration models in accreting C+O white dwarfs are presented as a plausible model for Type I supernovae. The evolution of the white dwarf is calculated from the beginning of accretion.
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