Results 111 to 120 of about 726,750 (238)
VLTI-AMBER velocity-resolved aperture-synthesis imaging of η Carinae with a spectral resolution of 12 000 - Studies of the primary star wind and innermost wind-wind collision zone [PDF]
, 2016 Context. The mass loss from massive stars is not understood well. η Carinae is a unique object for studying the massive stellar wind during the luminous blue variable phase. It is also an eccentric binary with a period of 5.54 yr.
G. Weigelt +29 more
semanticscholar +1 more source
, 2017 Type Ia supernovae (Ia-SNe) are thought to arise from the thermonuclear explosions of white dwarfs (WDs). The progenitors of such explosions are still highly debated; in particular the conditions leading to detonations in WDs are not well understood in ...
Hamers, A. S., Perets, H. B., Toonen, S.
core +2 more sources
Bullet Shooting Cloud–Cloud Collision in MIR Bubble N65
The Astrophysical JournalWe report that the formation of the twin-bubble system N65 and N65bis may be caused by the cloud–cloud collision (CCC) from the Bullet Nebula. The blueshifted ^13 CO gas component (N65a [47, 55] km s ^−1 ) is associated with the twin-bubble system, while
En Chen +5 more
doaj +1 more source
, 2007 The rate of accretion of matter from a solar-type star onto a primordial black hole (PBH) that passes through it is calculated. The probability that a PBH is captured into an orbit around a star in a galaxy is found.
A. A. Shatskii +3 more
core +1 more source
Collisional Shaping of Nuclear Star Cluster Density Profiles
The Astrophysical Journal LettersA supermassive black hole surrounded by a dense, nuclear star cluster resides at the center of many galaxies. In this dense environment, high-velocity collisions frequently occur between stars.
Sanaea C. Rose, Morgan MacLeod
doaj +1 more source
An S-shaped Filament Formed Due to Cloud–Cloud Collision in Molecular Cloud G178.28-00.61
The Astrophysical Journal Supplement SeriesWe present compelling observational evidence supporting G178.28-00.61 as an early-stage candidate for cloud–cloud collision (CCC), with indications of the formation of an S-shaped filament, evenly separated dense cores, and young star clusters.
Tianwei Zhang +20 more
doaj +1 more source
The Astrophysical JournalDark-matter-deficient galaxies (DMDGs) discovered in the survey of ultra-diffuse galaxies (UDGs), in apparent conflict with standard cold dark matter, may be produced by high-velocity galaxy–galaxy collisions, the so-called Mini-Bullet scenario.
Joohyun Lee +4 more
doaj +1 more source
Modulated Gamma-ray emission from compact millisecond pulsar binary systems
, 2013 A significant amount of the millisecond pulsars has been discovered within binary systems. In several such binary systems the masses of the companion stars have been derived allowing to distinguish two classes of objects, called the Black Widow and the ...
Bednarek, W.
core +1 more source
Physics Letters B, 2019 Proton-proton interaction and photo-hadronic interaction in cosmic accelerators are the two main channels for the production of cosmic ultra-high energy photons and neutrinos (TeV-PeV).
Ye-Fei Yuan, Xin-Yue Shi
doaj +1 more source
Nuclear reactions in hot stellar matter and nuclear surface deformation
, 2006 Cross-sections for capture reactions of charged particles in hot stellar matter turn out be increased by the quadrupole surface oscillations, if the corresponding phonon energies are of the order of the star temperature.
C. E. Rolfs +10 more
core +1 more source