Page 7 - Astroparticle Physics News Today

UD Professor Frank Schroeder has traveled to some of the most remote locations on the planet to set up radio antennas to detect cosmic rays, which are nature’s highest-energy particles. At right, he is shown in Siberia with a research team from Germany and Russia prior to his UD career. UD physicist named Sloan Research Fellow Article by Tracey Bryant Photos courtesy of Frank Schroeder | Photo illustration by David Barczak February 16,...

  In 2013, the Hubble Space Telescope found the birth certificate of oldest known star in the universe, cataloged as HD 140283, aptly named “methuselah”. The star, located in the constellation Libra, which is at the very first stages of expanding into a red giant, could be as old as 14.5 billion years (plus or minus 0.8 billion years), which at first glance would make it older than the universe’s calculated age of about 13.8 billion years, creating what we commonly call a dilemma. The st...

A star could be the reason behind your bad cellphone reception Updated East Coast Radio Share this: Researchers are investigating a very strange phenomenon in South Africa that could be affecting all cellphone users. Twitter/TheCapeArgus Darren Maule has noticed that he has being getting very bad reception when on a call in areas he has had no issues in before. Have you also noticed the same thing? According to researchers, a star could be disrupting mobile phone reception across South Afric...

A Prime Suspect for Dark Matter Might Be Escaping From Neutron Stars Image: NASA/Chandra X-Ray Observatory (Fair Use) After axions were first theorized by physicists in the suburbs of Chicago 45 years ago, they quickly became a robust candidate for explaining dark matter. All this time, though, the ultra-small particles have remained hypothetical. Now, a team of astrophysicists have proposed that axions may be responsible for an excess of X-ray emissions seen coming from a group of neutron star...

“Old Faithful” cosmic eruption shows black hole ripping at star You’ve heard of Old Faithful, the Yellowstone National Park geyser that erupts every hour or two, a geological phenomenon on a nearly predictable schedule. Now, an international group of scientists who study space have discovered an astronomical “Old Faithful” – an eruption of light flashing about once every 114 days on a nearly predictable schedule. The researchers believe it is a tidal disruption event, a phenomenon t...

IMAGE:  Elliptical galaxies are generally characterized by their relatively smooth appearance when compared with spiral galaxies (one of which is to the left) which have more flocculent structure interwoven with dust... view more  Credit: DES/CTIO/NOIRLab/NSF/DOE/AURA Acknowledgments: Image processing: DES, Jen Miller (Gemini Observatory/NSFs NOIRLab), Travis Rector (University of Alaska Anchorage), Mahdi Zamani & Davide de Martin The Dark Energy Survey has released a massive, public col...

The European School in Instrumentation for Particle and Astroparticle Physics (ESIPAP) aims at training Master, PhD students and professionals to the high standard of instrumentation in use in particle and astroparticle physics.  

January 12, 2021 New work agrees with older research suggesting the oldest light in the universe – from the most distant galaxy yet known – started its journey toward us 13.77 billion years ago. View larger. | In 2013, the Planck space telescope released the most detailed map to date of the cosmic microwave background, the relic radiation from the Big Bang. It was the mission’s first all-sky picture of the oldest light in our universe, imprinted on the sky when it was just 380,000 years ...

The centers of galaxies with actively feeding supermassive black holes are already astounding environments. Now, a team of researchers led by a graduate student from the University of Hawaiʻi Institute for Astronomy (IfA) has found an even more interesting oddball.  Feeding black holes typically increase and decrease in brightness similar to the Kilauea volcano, becoming more or less active over time in unpredictable ways.  However, the newly discovered black hole is more like Old Faithful g...

Ideas, Inventions And Innovations New View of Nature’s Oldest Light Suggest Universe Is 13.77 Billion Years Old From an observatory high above Chile’s Atacama Desert, astronomers have taken a new look at the oldest light in the universe. Their observations, plus a bit of cosmic geometry, suggest that the universe is 13.77 billion years old – give or take 40 million years. A Cornell researcher co-authored one of two papers about the findings, which add a fresh twist to an ongoing debate...