The Short Spectacular Life of a Superstar

@article{Gilmore2004TheSS,
  title={The Short Spectacular Life of a Superstar},
  author={Gerry Gilmore},
  journal={Science},
  year={2004},
  volume={304},
  pages={1915 - 1916}
}
Supernovae are spectacular events--the death throes of stars that can be seen across the universe--and they can leave behind puzzling remnants in the form of neutron stars or black holes. In his Perspective, Gilmore discusses results reported in the same issue by Bietenholz et al. on the observation of a radio-emitting remnant in supernova 1986J. This unusual compact energetic object is apparently very similar to the supernova remnant in the Crab nebula, and represents the youngest neutron… 

Nucleosynthesis in the Cosmos: What we think we know and forthcoming questions

: We present what we know on nucleosynthesis in the Universe and hypotheses that have been made in this regard. A brief description of the Universe’s evolution during its different stages is offered,

Core-collapse supernova from a possible progenitor star of 100  $$M_{\odot }$$ M ⊙

In this work, we study the synthetic explosions of a massive star. We take a 100  $$M_{\odot }$$ M ⊙ zero-age main-sequence (ZAMS) star and evolve it until the onset of core-collapse using MESA .

The number of progenitors in the core-degenerate scenario for Type Ia supernovae

We calculate the expected number of Type Ia supernovae (SN Ia) in the core-degenerate (CD) scenario and find it to match observations within the uncertainties of the code. In the CD scenario, the

Progenitor mass constraints for the type Ib intermediate-luminosity SN 2015ap and the highly extinguished SN 2016bau

Photometric and spectroscopic analyses of the intermediate-luminosity Type Ib supernova (SN) 2015ap and of the heavily reddened Type Ib SN 2016bau are discussed. Photometric properties of the two

Warm dense matter and cooling of supernovae remnants

We study the thermal effects on the nuclear matter (NM) properties such as binding energy, incompressibility, free symmetry energy and its coefficients using NL3, G3 and IU-FSU parameter sets of

MEASURING DETAILED CHEMICAL ABUNDANCES FROM CO-ADDED MEDIUM-RESOLUTION SPECTRA. I. TESTS USING MILKY WAY DWARF SPHEROIDAL GALAXIES AND GLOBULAR CLUSTERS

The ability to measure metallicities and α-element abundances in individual red giant branch (RGB) stars using medium-resolution spectra (R ≈ 6000) is a valuable tool for deciphering the nature of

Computational Modelling of Galaxy Formation using FLAME GPU

The primary aims of the project are to determine whether agent-based models are suitable for the investigation of physical phenomena, and to produce a realistic model of galaxy formation in doing so.

Analyses of hydrogen-stripped core–collapse supernovae using MOSFiT and MESA-based tools

In this work, we employ two publicly available analysis tools to study four hydrogen (H)–stripped core–collapse supernovae (CCSNe), namely, SN 2009jf, iPTF13bvn, SN 2015ap and SN 2016bau. We use the

The Origin of the Elements

Equation of State of a Dense and Magnetized Neutron System

References

SHOWING 1-10 OF 14 REFERENCES

Elusive Supernova Progenitors

Supernovae—the complete disruption of stars at the end of their lives—are among the most energetic events in the universe. But which sorts of stars give rise to supernovae? To answer this

Discovery of a Compact Radio Component in the Center of Supernova 1986J

Very-long-baseline interferometry observations have revealed a bright, compact radio component near the center of the expanding shell of supernova 1986J, which has an inverted radio spectrum different from that of the shell.

Circumstellar interaction and a pulsar nebula in the supernova 1986j

The supernova SN1986j was first discovered as a radio source in August 19861, although there were a number of pre-discovery observations. Here I show that the circumstellar interaction model for

The massive binary companion star to the progenitor of supernova 1993J

Photometric and spectroscopic observations of SN1993J ten years after the explosion detect the unambiguous signature of a massive star: the binary companion to the progenitor.

Have the Elusive Progenitors of Type Ia Supernovae Been Discovered?

The recent detection of Hα emission in the Type Ia supernova SN 2002ic could be taken to mean that the elusive progenitor systems of Type Ia supernovae have finally been identified. At first glance,

Throwing Light on Dark Energy

New observational programs can trace the history of cosmic expansion more precisely and over a larger span of time than has been done to date to learn whether the dark energy is a modern version of Einstein's cosmological constant or another form of dark energy that changes with time.

How Massive Single Stars End Their Life

How massive stars die—what sort of explosion and remnant each produces—depends chiefly on the masses of their helium cores and hydrogen envelopes at death. For single stars, stellar winds are the

Detection of a Red Supergiant Progenitor Star of a Type II-Plateau Supernova

The discovery of a red supergiant star that exploded as supernova 2003gd in the nearby spiral galaxy M74 confirms both stellar evolution models and supernova theories predicting that cool red supergiants are the immediate progenitor stars of type II–plateau supernovae.

The Supernova-Gamma-Ray Burst Connection

SN 1998bw and its corresponding relativistically expanding radio source are coincident with the γ-ray burst source GRB 980425. We searched for other possible supernova-γ-ray burst associations among

Measuring Spacetime: From the Big Bang to Black Holes

Spectacular measurements of the cosmic microwave background, gravitational lensing, type Ia supernovae, large-scale structure, spectra of the Lyman alpha forest, stellar dynamics, and x-ray binaries are probing the properties of spacetime over 22 orders of magnitude in scale.