[PDF] Top 20 CI Aql: a Type Ia supernova progenitor?

... spectral type were also ...five CI Aql spectra to calibrate the wavelength scale, and to account for spectrograph flexure at different tele- scope positions; the root-mean-square error in the fourth- ... See full document

... It is, of course, necessary to revisit SN 2017eaw when it has significantly faded, particularly at F814W and the WFC3/IR bands with HST or with JWST, to determine whether the candidate progenitor has vanished. One ... See full document

... SNe Ia ( with absence of He and H ) involve, at the most fundamental level, the combustion of a degenerate stellar ...SNe Ia based on a thermonuclear explosion of a C – O WD, there is the single-degenerate ... See full document

... of Type Ia ...of Type Ia supernovae and upcoming sur- veys plan to find thousands more, we are no longer limited by statistics, but are now being limited by systematic uncertainties in ... See full document

... which Type Ia supernovae are known to exist, reproduced from the SNLS 3-year super- nova results (Conley et ...into Type Ia supernova evolution and understanding intrinsic ... See full document

... a Type Ia supernova (SN Ia) at redshift z = ...CANDELS+CLASH Supernova project, comprising the SN search components from those two HST multi-cycle treasury ...SN Ia with direct ... See full document

... The progenitor type can be determined by association of a SNR with a neutron star or pulsar wind nebula, or by analysis of the composition of the ejecta of a ...separate Type Ia and core ... See full document

... that Type Ia supernovae (SNe Ia) are the re- sult of a thermonuclear explosion of a carbon/oxygen white dwarf (WD) ...SNe Ia be- ing used to discover the accelerating expansion of the Universe ... See full document

... We divided our samples from catalogues and SIMBAD (de- scribed in Sect. 2) into sub-samples as follows. Each of the spectral types of the LMC main-sequence stars is its own sub- sample. The Wolf-Rayet samples were split ... See full document

... Type Ia supernovae (SNe Ia) have been used as standardizable candles for measuring cosmic ex- pansion, leading to the discovery of accelerating expansion of universe and hence the “mysterious” dark ... See full document

... the progenitor, such that the outer layers and the inner core layers do not have to have either the same or orthogonal axes of sym- ...the progenitor, but the core-layers are elongated by the mechanical ... See full document

... SN Ia Hubble residuals (HRs) and properties of their host galaxies, including mass, metallicity, and star-formation rate, us- ing SN Ia data and host-galaxy photometry from the full three-year Sloan Digital ... See full document

... White dwarf stars are formed at the end of a typical star’s life when nuclear burning ceases in the core, the outer envelope is ejected, with the degenerate core typically cooling for eternity. Theory predicts that such ... See full document

... or progenitor parameters could explain our empirically determined variation in light-curve shape, luminosity, and color ? Current models have attempted to explain the inhomogeniety of supernovae in one of two ... See full document

... the Type Ia supernovæ as a cosmologi- cal probe is based on them being standardizable ...the progenitor system accretes mass is still poorly known and could be different between galaxy types or local ... See full document

... The wavefront propagation of curved detonation waves in carbon–oxygen cores and helium shells of Type Ia supernova (SNIa) progenitors is determined via a detonation shock dynamics approach. A level ... See full document

... Background: Urethral duplication is a rare congenital malformation mainly affecting men and boys. Although a number of theories have been proposed to describe this condition, the actual mechanism of this disorder is ... See full document

... We propose new correction to redshift which can be useful in cosmology. This explains the appeared acce- leration of the Universe. High values of the mass density are consistent with the experimental data on ... See full document

... Besides, there exist a problem of time misalignment between the result of theoretical calculation and practical observation. Because light’s speed is finite, it needs time for light to propagate from luminous celestial ... See full document

... SN Ia for the various models are presented in Figure ...SN Ia for- mulation that include prompt SN Ia (Table 1), the iden- tical trend is also observed in SN Ia rates as the occur- rence of SN ... See full document