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Preview: Brightsurf Science News :: Supernova News

Supernova Current Events and Supernova News from Brightsurf

Supernova Current Events and Supernova News Events, Discoveries and Articles from Brightsurf

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Astronomers reveal secrets of most distant supernova ever detected

Mon, 19 Feb 18 00:05:20 -0800

An international team of astronomers led by the University of Southampton has confirmed the discovery of the most distant supernova ever detected -- a huge cosmic explosion that took place 10.5 billion years ago, or three-quarters the age of the Universe itself.

Meteoritic stardust unlocks timing of supernova dust formation

Thu, 18 Jan 18 00:02:40 -0800

Dust is everywhere -- not just in your attic or under your bed, but also in outer space. To astronomers, dust can be a tool to study the history of our universe, galaxy, and Solar System. For example, observations indicate that type II supernovae -- explosions of stars more than ten times as massive as the Sun -- produce copious amounts of dust, but how and when they do so is not well understood.

GBT detection unlocks exploration of 'aromatic' interstellar chemistry

Thu, 11 Jan 18 00:14:10 -0800

Astronomers using the Green Bank Telescope have made the first definitive interstellar detection of benzonitrile, an intriguing organic molecule that helps to chemically link simple carbon-based molecules and truly massive ones known as polycyclic aromatic hydrocarbons. This discovery is a vital clue in a 30-year-old mystery: identifying the source of a faint infrared glow that permeates the Milky Way and other galaxies.

Astronomers detect 'whirlpool' movement in earliest galaxies

Wed, 10 Jan 18 00:11:40 -0800

Astronomers have looked back to a time soon after the Big Bang, and have discovered swirling gas in some of the earliest galaxies to have formed in the universe. These 'newborns' -- observed as they appeared nearly 13 billion years ago -- spun like a whirlpool, similar to our own Milky Way. This is the first time that it has been possible to detect movement in galaxies at such an early point in the universe's history.

Fast radio bursts 'twists and shouts' help scientists determine source of cosmic blasts

Wed, 10 Jan 18 00:11:10 -0800

An international group of astronomers has found that the Cornell University-discovered fast radio burst FRB 121102 -- a brief, gigantic pulse of radio waves from 3 billion light years away -- passes through a veil of magnetized plasma. This causes the cosmic blasts to 'shout and twist,' which will help the scientists determine the source.

Fast radio burst source linked to 'extreme' environment

Wed, 10 Jan 18 00:11:00 -0800

A new study shows that the only known repeating fast radio burst source is in an 'extreme' environment which is among the most highly magnetized regions of space ever observed. Such an environment has only been seen around massive black holes, but could also plausibly be caused by a combination of other extreme astrophysical circumstances. The new measurements could offer a major clue to the FRB's cause.

Big stars are more abundant than thought

Thu, 04 Jan 18 00:04:30 -0800

Observations of a nearby star-forming region reveal that large stars are more prevalent than models have predicted.

Scientists describe how solar system could have formed in bubble around giant star

Fri, 22 Dec 17 00:00:30 -0800

Scientists with the University of Chicago have laid out a comprehensive theory for how our solar system could have formed in the wind-blown bubbles around a giant, long-dead star. Published Dec. 22 in the Astrophysical Journal, the study addresses a nagging cosmic mystery about the abundance of two elements in our solar system compared to the rest of the galaxy.

Six-decade-old space mystery solved with shoebox-sized satellite called a CubeSat

Thu, 14 Dec 17 00:07:30 -0800

A 60-year-old mystery about the source of energetic, potentially damaging particles in Earth's radiation belts has been solved using data from a shoebox-sized satellite built and operated by students. The satellite is called a CubeSat.

NASA's SuperTIGER balloon flies again to study heavy cosmic particles

Wed, 06 Dec 17 00:04:00 -0800

A science team in Antarctica is preparing to fly SuperTIGER, a balloon-borne instrument designed to collect heavy high-energy particles from beyond the solar system that constantly bombard Earth's atmosphere.

Neutron stars on the brink of collapse

Mon, 04 Dec 17 00:12:30 -0800

The exact characteristics of Neutron stars, the densest objects in the Universe, are still un-known. An international team ofscientists including HITS astrophysicist Dr. Andreas Bauswein has managed to narrow down the size of neutron stars with the aid of computer simulations. The calculations based on data from the LIGO and Virgo observatories suggest that the neutron star radius must be at least 10.7 km. The results have been published in

Astronomer's map reveals location of mysterious fast-moving gas

Sun, 03 Dec 17 00:13:10 -0800

An Australian scientist has created the most detailed map ever of clouds of high-velocity gas in the universe around us. The map covers the entire sky and shows curious clouds of neutral hydrogen gas that are moving at a different speed to the normal rotation of the Milky Way.

Zwicky Transient Facility sees 'first light'

Tue, 14 Nov 17 00:05:50 -0800

A new robotic camera that can capture hundreds of thousands of stars and galaxies in a single shot has taken its first image -- an event astronomers refer to as 'first light.' The camera is the centerpiece of a new automated sky survey called the Zwicky Transient Facility (ZTF), based at Caltech's Palomar Observatory. As partners in the ZTF effort, University of Maryland astronomers made important contributions to the planning and design of the project.

Hubble shows light echo expanding from exploded star

Thu, 09 Nov 17 00:05:30 -0800

Light from a supernova explosion in the nearby starburst galaxy M82 is reverberating off a huge dust cloud in interstellar space.

Star exploded, survived, and exploded again more than 50 years later

Wed, 08 Nov 17 00:00:40 -0800

It's the celestial equivalent of a horror movie villain--a star that wouldn't stay dead. An international team of astronomers including Carnegie's Nick Konidaris and Benjamin Shappee discovered a star that exploded multiple times over a period of 50 years. The finding, published by Nature, completely confounds existing knowledge of a star's end of life, and Konidaris' instrument-construction played a crucial role in analyzing the phenomenon.

Astronomers discover a star that would not die

Wed, 08 Nov 17 00:00:30 -0800

An international team of astronomers has made a bizarre discovery; a star that refuses to stop shining.

A star that would not die

Wed, 08 Nov 17 00:05:20 -0800

UCSB astrophysicists and LCO astronomers study a supernova that challenges known theories of how certain stars end their lives.

Revealing galactic secrets

Wed, 25 Oct 17 00:09:10 -0700

Countless galaxies vie for attention in this monster image of the Fornax Galaxy Cluster, some appearing only as pinpricks of light while others dominate the foreground. One of these is the lenticular galaxy NGC 1316. The turbulent past of this much-studied galaxy has left it with a delicate structure of loops, arcs and rings that astronomers have now imaged in greater detail than ever before with the VLT Survey Telescope.

Colliding neutron stars seen by gravity waves and optical telescopes

Tue, 17 Oct 17 00:14:50 -0700

For the first time, astronomers have observed a celestial event through both conventional telescopes and gravitational waves. The collision of two super-dense neutron stars just 120 million light-years from Earth was captured by both gravity wave observatories (Laser Interferometer Gravitational Observatory, LIGO in the US, and Virgo in Italy) and telescopes including the DLT40 survey based in Chile.

Discovered! Neutron star collision seen for the first time

Mon, 16 Oct 17 00:00:50 -0700

A team of Carnegie astronomers provided the first-ever glimpse of neutron stars colliding August 17. With UC Santa Cruz colleagues, they used the Swope telescope at Las Campanas Observatory to discover the light produced by the merger, pinpointing the origin of a gravitational wave signal less than 11 hours after it was detected. They also obtained the earliest spectra of the collision, which may allow them to explain the origin of the universe's heavy elements.

First observations of merging neutron stars mark a new era in astronomy

Mon, 16 Oct 17 00:16:00 -0700

After LIGO detected gravitational waves from the merger of two neutron stars, the race was on to detect a visible counterpart, because unlike the colliding black holes responsible for LIGO's four previous detections, this event was expected to produce an explosion of visible light. A small team led by UCSC was the first to find the source of the gravitational waves, capturing the first images of the event with the Swope Telescope in Chile.

Decoding the origin of heavy elements in the light from a neutron star merger

Mon, 16 Oct 17 00:02:50 -0700

On Aug. 17, scientists around the globe were treated to near-simultaneous observations by separate instruments: One set of Earth-based detectors measured the signature of a cataclysmic event sending ripples through the fabric of space-time, and a space-based detector measured the gamma-ray signature of a high-energy outburst emanating from the same region of the sky.

Astronomers first to see source of gravitational waves in visible light

Mon, 16 Oct 17 00:02:40 -0700

For the first time, astronomers have observed in visible light a cataclysmic cosmic event that generated gravitational waves detected on Earth. The event was the merger of two neutron stars in a galaxy 130 million light-years away. The merger resulted in a supernova-like explosion, the light of which was first observed by a team of astronomers at the Carnegie Institution for Science's Las Campanas Observatory in northern Chile.

Astronomers follow gravitational waves to treasure

Mon, 16 Oct 17 00:06:50 -0700

Astronomers have tracked down the source of a gravitational wave and discovered the first observed kilonova: a nuclear furnace 100 million times brighter than the Sun producing thousands of times the entire mass of the Earth in heavy elements such as precious metals.

Catch a fleeting kilonova

Mon, 16 Oct 17 00:06:40 -0700

Alerted by the first-ever gravitational waves caused by two neutron stars merging, UCSB astronomers detect the resulting optical flash

RIT researchers help usher in era of multi-messenger astronomy with LIGO discovery

Mon, 16 Oct 17 00:07:50 -0700

Rochester Institute of Technology played a significant role in the breakthrough discovery of colliding neutron stars, cosmic collision detected in gravitational waves and in light.

Gravitational waves detected after collision of neutron stars 120 million light years away

Mon, 16 Oct 17 00:08:40 -0700

Tel Aviv University researchers have confirmed that gravitational 'ripples in space' occur after the collision of neutron stars, very small (typically 18 miles across) and very dense bodies that are the remains of a massive star after a supernova explosion.

Breaking: the first light from two neutron stars merging

Mon, 16 Oct 17 00:10:10 -0700

Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on Aug. 17, 2017.

Students in right place, right time witness first-ever detected neutron star collision

Mon, 16 Oct 17 00:12:10 -0700

New research published in Science details perhaps one of the biggest discoveries so far in the field of astrophysics: the merger of two neutron stars. Two graduate students and two professors at the University of Notre Dame contributed to studies published on the collision.

Astronomers use IAC instrument to probe the origins of cosmic rays

Fri, 06 Oct 17 00:06:30 -0700

In November 1572 a supernova explosion was observed in the direction of the constellation of Cassiopeia, and its most famous observer was Tycho Brahe, one of the founders of modern observational astronomy.

Violent helium reaction on white dwarf surface triggers supernova explosion

Thu, 05 Oct 17 00:06:40 -0700

An international research team are the first to find solid evidence about what triggered a star to explode, which will contribute to a further understanding of supernova history and behavior.

Surface helium detonation spells end for white dwarf

Wed, 04 Oct 17 00:07:50 -0700

An international team of researchers has found evidence that the brightest stellar explosions in our Universe could be triggered by helium nuclear detonation near the surface of a white dwarf star. Using Hyper Suprime-Cam mounted on the Subaru Telescope, the team detected a type Ia supernova within a day after the explosion, and explained its behavior through a model calculated using the supercomputer ATERUI. This result was reported in Nature published on Oct. 5.

Prime candidate to explain cosmic ray sea runs short of energy

Tue, 19 Sep 17 00:10:00 -0700

The very high-energy part of the spectrum of Cassiopeia A results from the cosmic rays within the remnant. Until now, this range of energy could not be measured with sufficient precision. An international team led by scientists from the Institute for Space Sciences, the Institut de Fisica d'Altes Energies and the Institute of Cosmos Sciences of the University of Barcelona, in Spain, has finally succeeded in doing those observations with the MAGIC telescopes.

New supernova analysis reframes dark energy debate

Wed, 13 Sep 17 00:01:10 -0700

The accelerating expansion of the Universe may not be real, but could just be an apparent effect, according to new research published in the journal Monthly Notices of the Royal Astronomical Society. The new study -- by a group at the University of Canterbury in Christchurch, New Zealand -- finds the fit of Type Ia supernovae to a model universe with no dark energy to be very slightly better than the fit to the standard dark energy model.

Ultraviolet light from superluminous supernova key to revealing explosion mechanism

Thu, 07 Sep 17 00:12:50 -0700

An international team of researchers led by Kavli IPMU's Alexey Tolstov and Ken'ichi Nomoto have discovered a way to use UV light from superluminous supernovae to uncover its explosion mechanism, and used it to identify Gaia16apd as a shock-interacting supernova, reports a new study.

Accretion-powered pulsar reveals unique timing glitch

Wed, 06 Sep 17 00:07:10 -0700

The discovery of the largest timing irregularity yet observed in a pulsar is the first confirmation that pulsars in binary systems exhibit the strange phenomenon known as a 'glitch.' The study is published in the journal Monthly Notices of the Royal Astronomical Society.

'Extreme' telescopes find the second-fastest-spinning pulsar

Tue, 05 Sep 17 00:09:30 -0700

By following up on mysterious high-energy sources mapped by NASA's Fermi Gamma-ray Space Telescope, a Netherlands-based radio telescope has discovered a new pulsar, the second fastest-spinning known.

UCLA physicists propose new theories of black holes from the very early universe

Fri, 01 Sep 17 00:05:50 -0700

'Primordial black holes,' believed to have formed shortly after the Big Bang, might explain how heavy elements such as gold, platinum and uranium came to be, UCLA physicists report.

Stellar corpse sheds light on origin of cosmic rays

Fri, 01 Sep 17 00:09:40 -0700

New research revealed that the entire zoo of electromagnetic radiation streaming from the Crab nebula -- one of the most iconic objects in the sky -- has its origin in one population of electrons and must be produced in a different way than scientists have traditionally thought. The results have implications for our understanding of how cosmic rays attain their incredible energies.

UChicago scientists detect first X-rays from mystery supernovas
A team of scientists, including scholars from the University of Chicago, appear to have found the first X-rays coming from type Ia supernovae. Their findings are published in the