Washington DC
New York
Toronto
Distribution: (800) 510 0384
Press ID  
  • Login
Belmont Star
No Result
View All Result
Friday, August 19, 2022
  • Business ☆ Finance
  • Culture ☆ Arts
  • Lifestyle ☆ Entertainment
  • Technology ☆ Science
  • Fintech ☆ Cybersecurity
  • Eco ☆ Conservation
  • Business ☆ Finance
  • Culture ☆ Arts
  • Lifestyle ☆ Entertainment
  • Technology ☆ Science
  • Fintech ☆ Cybersecurity
  • Eco ☆ Conservation
No Result
View All Result
Belmont Star
No Result
View All Result

Using Cosmic-Ray Neutron Bursts to Understand Gamma-Ray Bursts From Lightning

An ‘accidental discovery’ confirms what simulations show

Ryan Offman by Ryan Offman
April 28, 2021
in Technology ☆ Science
A A
Using Cosmic-Ray Neutron Bursts to Understand Gamma-Ray Bursts From Lightning

A lightning mapper at the High Altitude Water Cherenkov (HAWC) Cosmic Ray Observatory in Mexico unexpectedly observed that gamma rays produce more neutrons than previously known. © Jordan Goodman / HAWC Collaboration (NSF.gov)

Share on FacebookShare on Twitter

Analysis of data from a lightning mapper and a small, hand-held radiation detector has unexpectedly shed light on what a gamma-ray burst from lightning might look like – by observing neutrons generated from soil by very large cosmic-ray showers. The work took place at the High Altitude Water Cherenkov (HAWC) Cosmic Ray Observatory in Mexico.

“This was an accidental discovery,” said Greg Bowers, a scientist at Los Alamos National Laboratory and lead author of the study published in Geophysical Research Letters. “We set up this system to study terrestrial gamma-ray flashes – or gamma-ray bursts from lightning – that are typically so bright you can see them from space. The idea was that HAWC would be sensitive to the gamma-ray bursts, so we installed a lightning mapper to capture the anatomy of the lightning development and pinpoint the lightning processes producing them.”

BelmontNewsroom

AELF FlightService Adds Passenger Service to ACMI and Charter Operation

Interview With Robin Harvell, LPC, Co-Founder of Azira Mental Health, LLC

Cambridge Isotope Laboratories Appoints John Bakke as Vice President of Finance

The team, including Xuan-Min Shao and Brenda Dingus also from Los Alamos, used a small, handheld particle detector, expecting that a terrestrial gamma-ray flash would generate a clear gamma-ray signal in the small particle detector.

“Our system ran for almost two years, and we saw a lot of lightning,” said Bowers. But during those storms, they did not observe anything that looked like terrestrial gamma-ray flashes. “We did, however, see large count-rate bursts during clear, fair-weather days, which made us scratch our heads.”

HAWC data gathered during these times showed that, in every case, the large array that comprises HAWC had been overwhelmed by extremely large cosmic-ray showers—so large that the Los Alamos researchers couldn’t estimate their size.

UC Santa Cruz collaborator David Smith found that these fair-weather bursts had previously been observed by scientists in Russia, who called them “neutron bursts,” and determined that they were the result of neutron production in the soil around the impact point of cosmic ray shower cores.

Previous work that simulated these events had only considered hadrons – a type of subatomic particle – in the core of the showers. In addition to hadrons and other particles, cosmic-ray shower cores also contain a lot of gamma rays.

For this work, William Blaine, also of Los Alamos, simulated large cosmic ray-showers, and included both hadrons and gamma rays. “We were able to match our observations with the simulations,” said Bowers. “We found that the gamma rays produce the same type of neutron burst as the hadrons.”

This study suggests that any natural phenomena that produces a beam of gamma-rays pointed towards the ground (such as downward terrestrial gamma-ray flashes), could produce a similar “neutron burst” signature. This is significant for future terrestrial gamma-ray flash observation modeling efforts.

“It tells us that you can’t just model the gamma rays hitting your detector, you’ll also have to consider the neutron burst that’s happening nearby,” said Bowers.

The HAWC Observatory comprises an array of water-filled tanks high on the flanks of the Sierra Negra volcano in Puebla, Mexico, where the thin atmosphere offers better conditions for observing gamma rays. When gamma rays strike molecules in the atmosphere they produce showers of energetic particles. When some of those particles strike the water inside the HAWC detector tanks, they produce flashes of light called Cherenkov radiation. By studying these Cherenkov flashes, researchers reconstruct the sources of the showers to learn about the particles that caused them.

Paper: Bowers, G. S., Shao, X.‐M., Blaine, W., Dingus, B., Smith, D. M., Chaffin, J., et al. (2021). Fair weather neutron bursts from photonuclear reactions by extensive air shower core interactions in the ground and implications for Terrestrial gamma‐ray flash signatures. Geophysical Research Letters, 48, e2020GL090033. https://doi.org/10.1029/2020GL090033

Funding: Los Alamos Laboratory Directed Research and Development Program, U.S. National Science Foundation, U.S. Department of Energy Office of High-Energy Physics

Ryan Offman

Ryan Offman

Technology Reporter

Belmont Newsroom

AELF FlightService Adds Passenger Service to ACMI and Charter Operation
Technology ☆ Science

AELF FlightService Adds Passenger Service to ACMI and Charter Operation

August 18, 2022
Interview With Robin Harvell, LPC, Co-Founder of Azira Mental Health, LLC
Technology ☆ Science

Interview With Robin Harvell, LPC, Co-Founder of Azira Mental Health, LLC

August 18, 2022
Cambridge Isotope Laboratories Appoints John Bakke as Vice President of Finance
Technology ☆ Science

Cambridge Isotope Laboratories Appoints John Bakke as Vice President of Finance

August 15, 2022
  • Coalition To Protect America’s National Parks Applauds The Passage Of The Inflation Reduction Act

https://marketsherald.com/coalition-to-protect-americas-national-parks-applauds-the-passage-of-the-inflation-reduction-act/

#nyc #losangeles #chicago #houston #phoenix #philadelphia #sandiego #dallas #sanfrancisco #seattle #denver #washingtondc #boston #detroit #vancouver #toronto #publicrelations #marketingagency #earnedmedia #editorial #marketing #nature #climate #climatechange #environment #nationalpark
  • Astroport Space Technologies Awarded Second NASA Technology Research Contract For Lunar Construction

https://marketsherald.com/astroport-space-technologies-awarded-second-nasa-technology-research-contract-for-lunar-construction/

#nyc #losangeles #chicago #houston #phoenix #philadelphia #sandiego #dallas #sanfrancisco #seattle #denver #washingtondc #boston #detroit #vancouver #toronto #publicrelations #marketingagency #earnedmedia #editorial #cosmos #technology #moon #space #lunarmission #nasa
  • National Public Housing Museum To Begin Construction On Its Long-Awaited Permanent Home

https://marketsherald.com/national-public-housing-museum-to-begin-construction-on-its-long-awaited-permanent-home/

#nyc #losangeles #chicago #houston #phoenix #philadelphia #sandiego #dallas #sanfrancisco #seattle #denver #washingtondc #boston #detroit #vancouver #toronto #publicrelations #marketingagency #earnedmedia #editorial #marketing #marketingdigital #museum #housing #arts #culture
  • Quark Expeditions Launches The 2022 Canadian Arctic Season With Its New Ship Ultramarine

https://marketsherald.com/quark-expeditions-launches-the-2022-canadian-arctic-season-with-its-new-ship-ultramarine/

#nyc #losangeles #chicago #houston #phoenix #philadelphia #sandiego #dallas #sanfrancisco #seattle #denver #washingtondc #boston #detroit #vancouver #toronto #publicrelations #marketingagency #earnedmedia #editorial #marketing #marketingdigital #guestpost #travel #marine #ultramarine
  • RoboTire Installs First Revolutionary Tire Changing System At Discount Tire

https://marketsherald.com/robotire-installs-first-revolutionary-tire-changing-system-at-discount-tire/

#nyc #losangeles #chicago #houston #phoenix #philadelphia #sandiego #dallas #sanfrancisco #seattle #denver #washingtondc #boston #detroit #vancouver #toronto #publicrelations #marketingagency #earnedmedia #editorial #marketing #marketingdigital #guestpost #robotire #discounttire #robotics
  • Children Infected With An Acute Case Of COVID-19 Can Still Develop Long COVID Symptoms

https://marketsherald.com/children-infected-with-an-acute-case-of-covid-19-can-still-develop-long-covid-symptoms/

#nyc #losangeles #chicago #houston #phoenix #philadelphia #sandiego #dallas #sanfrancisco #seattle #denver #washingtondc #boston #detroit #vancouver #toronto #publicrelations #marketingagency #earnedmedia #editorial #marketing #marketingdigital #guestpost #guestposting #marketingtips #health
  • Peter Lake Releases New Single ACORNS

https://marketsherald.com/peter-lake-releases-new-single-acorns/

#nyc #losangeles #chicago #houston #phoenix #philadelphia #sandiego #dallas #sanfrancisco #seattle #denver #washingtondc #boston #detroit #vancouver #toronto #publicrelations #marketingagency #earnedmedia #editorial #marketing #marketingdigital #guestpost #guestposting #marketingtips #music
  • Thailand’s Leading Trailer Manufacturer Successfully Enters US Market

https://marketsherald.com/thailands-leading-trailer-manufacturer-successfully-enters-us-market/

#nyc #losangeles #chicago #houston #phoenix #philadelphia #sandiego #dallas #sanfrancisco #seattle #denver #washingtondc #boston #detroit #vancouver #toronto #publicrelations #marketingagency #earnedmedia #editorial #marketing #marketingdigital #guestpost #guestposting #automotive #thailand

© 2022 Belmont Star. Published by The Ritz Herald. Editions: Markets Herald • Lincoln Citizen • Madison Graph • Fairmont Post • The Hudson Weekly

Address: 1177 6th Avenue, 5th Floor, New York, NY 10036. Contact: pr@belmontstar.com. Phone: (718) 313-5252. M-F: 9AM-5PM. Privacy Policy

No Result
View All Result
  • Business ☆ Finance
  • Culture ☆ Arts
  • Lifestyle ☆ Entertainment
  • Technology ☆ Science
  • Fintech ☆ Cybersecurity
  • Eco ☆ Conservation

© 2021 Belmont Star. Published by The Ritz Herald.

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In

Add New Playlist