Tag

Fermi Telescope

All articles tagged with #fermi telescope

space27 days ago•3 min saved

Seven-Hour GRB Hints at a Wandering IMBH Feeding on a Star

GRB 250702B is the longest gamma-ray burst on record, lasting seven hours with three separate bursts in a day. Researchers propose it may have been produced when a Sun-like star was tidally disrupted by an intermediate-mass black hole, creating a relativistic jet; the star could have been shredded in multiple passes, and the event's location away from the galaxy's core supports the IMBH scenario, though competing models remain and evidence is contested.

via Universe Today|

#fermi-telescope #gamma-ray-burst #intermediate-mass-black-hole

science4 months ago•3 min saved

Scientists Claim First Direct Evidence of Dark Matter Detection

Scientists may have found the first direct evidence of dark matter using gamma rays detected by NASA's Fermi Telescope, which could mark a major breakthrough in understanding this elusive substance, possibly confirming the existence of WIMPs and their annihilation in the Milky Way's center.

via ScienceDaily|

#dark-matter #fermi-telescope #gamma-rays

science5 months ago•3 min saved

Hidden Glow in the Milky Way Suggests Dark Matter Activity

New simulations suggest that the faint glow at the center of the Milky Way could be a signature of dark matter, which may have a flattened, egg-like shape influenced by the galaxy's violent history, bringing scientists closer to confirming dark matter's existence.

via Space|

#cosmology #dark-matter #fermi-telescope

science5 months ago•6 min saved

Scientists Explore Dark Matter as Source of Milky Way's Mysterious Glow

Scientists are exploring whether the mysterious gamma-ray glow at the center of our galaxy is caused by dark matter collisions or pulsars. Recent supercomputer simulations suggest the dark matter distribution could be egg-shaped, matching observations, which reopens the possibility that dark matter is responsible. Future observations with the Cherenkov Telescope Array could provide definitive evidence, potentially confirming dark matter's role and advancing our understanding of the universe's most elusive substance.

via CNN|

#cosmology #dark-matter #fermi-telescope

science5 months ago•3 min saved

Scientists Near Confirmation of Dark Matter

Scientists are close to confirming the existence of dark matter by studying gamma-ray emissions near the center of the Milky Way, with recent research suggesting that these signals could be caused by dark matter particles or millisecond pulsars, and upcoming telescopes may help differentiate the sources.

via KSL.com|

#cosmology #dark-matter #fermi-telescope

science5 months ago•4 min saved

Scientists Edge Closer to Confirming Dark Matter in the Milky Way

Scientists are closer to confirming the existence of dark matter by studying gamma-ray emissions near the center of the Milky Way, with current evidence fitting both dark matter particle collisions and millisecond pulsars as possible sources, and future observations from the Cherenkov Telescope Array may provide definitive answers.

via Reuters|

#cosmology #dark-matter #fermi-telescope

astronomy2 years ago•4 min saved

"Unprecedented Discovery: Nearby Supernova Defies Cosmic Ray Expectations"

NASA's Fermi Telescope observed supernova SN 2023ixf in the Pinwheel galaxy in 2023 and did not detect the expected high-energy gamma rays, indicating lower energy conversion rates than anticipated for cosmic ray production by supernovae. This challenges previous estimates and suggests more to learn about cosmic ray origins and acceleration mechanisms. The absence of gamma rays prompts further investigation into underlying hypotheses and environmental conditions, with potential implications for understanding the universe's cosmic ray sources.

via SciTechDaily|

#astronomy #cosmic-rays #fermi-telescope

astronomy2 years ago•2 min saved

"Unprecedented Gamma-Ray Discovery Beyond Our Galaxy by NASA's Fermi Telescope"

NASA's Fermi telescope has discovered a mysterious gamma-ray pattern just outside the Milky Way, possibly originating from an unidentified cosmic event. The pattern, unrelated to the cosmic microwave background, was found in the southern sky and has a much higher magnitude than the movement of the solar system could account for. This discovery could provide insight into physical processes in the early universe, and researchers suspect it may be linked to a similar feature observed in ultrahigh-energy cosmic rays.

via UPI News|

#astronomy #cosmic-event #cosmic-microwave-background

space2 years ago•4 min saved

"Massive Discovery: 300 Gamma-Ray Blasting Neutron Stars Unveiled, Including 'Spider Pulsars'"

The Fermi gamma-ray space telescope has discovered around 300 rapidly spinning neutron stars, including several "spider pulsars" that devour their companion stars. These millisecond pulsars emit gamma-rays and serve as precise timekeepers, allowing for the study of deep space events. Neutron stars are born when massive stars explode in supernovas, and their extreme characteristics are a result of their size reduction. The discovery of these neutron stars could help in understanding low-frequency gravitational waves and potentially be used for navigation purposes in the future.

via Space.com|

#fermi-telescope #gamma-rays #neutron-stars