Results 71 to 80 of about 32,797 (265)

Hydrogen-poor Superluminous Supernovae in the Nebular Phase: Spectral Diversity Due to Ejecta Ionization as a Probe of the Power Source

open access: yesThe Astrophysical Journal
We present a large sample of 39 nebular-phase optical spectra of 25 hydrogen-poor superluminous supernovae (SLSNe-I) and jointly analyze them with previously published spectra of 12 events.
Peter K. Blanchard   +8 more
doaj   +1 more source

Core-collapse supernovae and gravitational waves

open access: yes, 2004
Core-collapse supernovae are dramatic events with a rich phenomenology, including gravitational radiation. Simulations of these events in multiple spatial dimensions with energy- and angle-dependent neutrino transport are still in their infancy.
Blondin   +9 more
core   +2 more sources

Assembling genomes of non‐model plants: A case study with evolutionary insights from Ranunculus (Ranunculaceae)

open access: yesThe Plant Journal, Volume 123, Issue 6, September 2025.
SUMMARY Whereas genome sequencing and assembly technologies are improving, cost can still be prohibitive for plant species with large, complex genomes. As a consequence, genomics work on some taxa in evolutionarily pivotal positions in the vascular plant tree of life has been hampered.
Kevin Karbstein   +15 more
wiley   +1 more source

Core-collapse supernovae

open access: yes
This is a pre-print of a chapter for the Encyclopedia of Astrophysics (edited by I. Mandel, section editor F.R.N.
Jerkstrand, Anders   +2 more
openaire   +2 more sources

Two Micron‐Size Dark Dimensions

open access: yesFortschritte der Physik, Volume 73, Issue 8, August 2025.
Abstract Two extra dimensions of micron scale might simultaneously address the gauge and cosmological hierarchy problems. In this paper various observational bounds in scenarios with one and two large extra dimensions are examined, to see if they are compatible with the micron scale.
Luis A. Anchordoqui   +2 more
wiley   +1 more source

Turbulence in Core-collapse Supernovae

open access: yesThe Astrophysical Journal
It is understood in a general sense that turbulent fluid motion below the shock front in a core-collapse supernova stiffens the effective equation of state of the fluid and aids in the revival of the explosion.
David Calvert   +6 more
doaj   +1 more source

Probing the Low-mass End of Core-collapse Supernovae Using a Sample of Strongly-stripped Calcium-rich Type IIb Supernovae from the Zwicky Transient Facility

open access: yesThe Astrophysical Journal, 2023
The fate of stars in the zero-age main-sequence (ZAMS) range ≈8–12 M _⊙ is unclear. They could evolve to form white dwarfs or explode as electron-capture supernovae (SNe) or iron core-collapse SNe (CCSNe).
Kaustav K. Das   +28 more
doaj   +1 more source

The Caltech Core-Collapse Project (CCCP) [PDF]

open access: yes, 2005
The cosmological utility of type Ia Supernovae prompted numerous studies of these events, and they are now well characterized observationally, both as individual objects and as a population. In contrast, all other types of supernovae (i.e.
Cenko, S. B.   +6 more
core  

The Progenitors of Recent Core-Collapse Supernovae [PDF]

open access: yes, 2009
We present the results of our analysis of Hubble Space Telescope (HST) and deep ground-based images to isolate the massive progenitor stars of the two recent core-collapse supernovae 2008 bk and 2008 cn.
Elias-Rosa, N.   +3 more
core   +1 more source

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