Results 51 to 60 of about 6,274 (132)

Evidence for a Compact Stellar Merger Origin for GRB 230307A From Fermi-LAT and Multiwavelength Afterglow Observations

open access: yesThe Astrophysical Journal Letters
GRB 230307A is the second-brightest gamma-ray burst (GRB) ever detected over 50 yr of observations and has a long duration in the prompt emission. Two galaxies are found to be close to the position of GRB 230307A: (1) a distant ( z ∼ 3.87) star-forming ...
Cui-Yuan Dai   +4 more
doaj   +1 more source

A Statistical Study of Soft X-Ray Flares on Solar-type Stars

open access: yesThe Astrophysical Journal
The statistical characteristics of stellar flares at optical bands have received extensive study, but they remain to be studied at soft X-ray bands, in particular for solar-type stars.
Z. H. Zhao   +4 more
doaj   +1 more source

Rotation of a Solar Jet Driven by Plasma Flow along Helical Magnetic Fields in an Active Region

open access: yesThe Astrophysical Journal
Solar jets, collimated plasma ejections driven by magnetic reconnection, play a vital role in energy transport and coronal heating. While rotational motions in jets are often attributed to magnetic field untwisting, alternative explanatory mechanisms ...
Lei Huang   +4 more
doaj   +1 more source

Detection of Metal Enrichment by SN 2011jm in NGC 4809

open access: yesThe Astrophysical Journal Letters
Cosmic metals are believed to originate from stellar and supernovae (SNe) nucleosynthesis, dispersed into the interstellar medium (ISM) through stellar winds and supernova explosions.
Yulong Gao   +4 more
doaj   +1 more source

Ultrahigh-energy gamma-ray emission associated with black hole-jet systems. [PDF]

open access: yesNatl Sci Rev
Cao Z   +316 more
europepmc   +1 more source

Detection of disk-jet coprecession in a tidal disruption event. [PDF]

open access: yesSci Adv
Wang Y   +48 more
europepmc   +1 more source

A universal brown dwarf desert formed between planets and stars. [PDF]

open access: yesProc Natl Acad Sci U S A
Cui K   +12 more
europepmc   +1 more source

A young progenitor for the most common planetary systems in the Galaxy. [PDF]

open access: yesNature
Livingston JH   +41 more
europepmc   +1 more source

The faintest, extremely variable X-ray tidal disruption event from a supermassive black hole binary? [PDF]

open access: yesInnovation (Camb)
Huang M   +32 more
europepmc   +1 more source

Multiple outflows and delayed ejections revealed by early imaging of novae. [PDF]

open access: yesNat Astron
Aydi E   +41 more
europepmc   +1 more source

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