* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Wednesday, October 1, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Penn State-Themed Restaurant and Entertainment Spot Happy Valley Live Set to Open in State College – StateCollege.com

    Penn State-Themed Restaurant and Entertainment Spot Happy Valley Live Set to Open in State College – StateCollege.com

    The Police Made Chart History With This 1979 Hit Nearly 50 Years Ago – Yahoo

    How The Police Changed Music Forever with Their Iconic 1979 Hit Nearly 50 Years Ago

    Good Deed Entertainment Acquires Worldwide Rights To Liza Mandelup’s Documentary ‘Caterpillar’ – Deadline

    Good Deed Entertainment Lands Global Rights to Liza Mandelup’s Captivating Documentary ‘Caterpillar

    Danielle Fishel Explains Why Being on “DWTS” Makes Her Feel ‘Like It’s 1994 Again’ Filming “Boy Meets World” (Exclusive) – Yahoo

    Danielle Fishel Explains Why Being on “DWTS” Makes Her Feel ‘Like It’s 1994 Again’ Filming “Boy Meets World” (Exclusive) – Yahoo

    Jussie Smollett Claims He Was ‘Disrespected’ on the ‘Special Forces’ Season Premiere – Yahoo

    Jussie Smollett Opens Up About Feeling ‘Disrespected’ During the ‘Special Forces’ Season Premiere

    TicketSmarter Fall Entertainment Guide – Eastern Illinois University Athletics

    TicketSmarter Fall Entertainment Guide – Eastern Illinois University Athletics

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    STELLA Automotive AI Appoints Fred Seidelman as Chief Technology Officer – Yahoo Finance

    STELLA Automotive AI Appoints Fred Seidelman as New Chief Technology Officer

    Saving Energy and Money with Smart Technology – Terms of Service with Clare Duffy – Podcast on CNN Podcasts – CNN

    Saving Energy and Money with Smart Technology – Terms of Service with Clare Duffy – Podcast on CNN Podcasts – CNN

    Four Strategic Signals Technology Leaders Are Tuning In To – SPONSOR CONTENT FROM ARM – Harvard Business Review

    Four Essential Strategic Signals Every Technology Leader Should Watch

    Virginia Tech hosts annual New Music + Technology Festival this week – Cardinal News

    Virginia Tech Kicks Off Exciting Annual New Music and Technology Festival This Week

    Why I gave the world wide web away for free | Tim Berners-Lee – The Guardian

    Why I Decided to Make the World Wide Web Free for Everyone | Tim Berners-Lee

    From shale to steam: Fossil fuel technology boosts clean geothermal energy – Washington Examiner

    From Shale to Steam: How Fossil Fuel Technology is Powering a Clean Geothermal Energy Revolution

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Penn State-Themed Restaurant and Entertainment Spot Happy Valley Live Set to Open in State College – StateCollege.com

    Penn State-Themed Restaurant and Entertainment Spot Happy Valley Live Set to Open in State College – StateCollege.com

    The Police Made Chart History With This 1979 Hit Nearly 50 Years Ago – Yahoo

    How The Police Changed Music Forever with Their Iconic 1979 Hit Nearly 50 Years Ago

    Good Deed Entertainment Acquires Worldwide Rights To Liza Mandelup’s Documentary ‘Caterpillar’ – Deadline

    Good Deed Entertainment Lands Global Rights to Liza Mandelup’s Captivating Documentary ‘Caterpillar

    Danielle Fishel Explains Why Being on “DWTS” Makes Her Feel ‘Like It’s 1994 Again’ Filming “Boy Meets World” (Exclusive) – Yahoo

    Danielle Fishel Explains Why Being on “DWTS” Makes Her Feel ‘Like It’s 1994 Again’ Filming “Boy Meets World” (Exclusive) – Yahoo

    Jussie Smollett Claims He Was ‘Disrespected’ on the ‘Special Forces’ Season Premiere – Yahoo

    Jussie Smollett Opens Up About Feeling ‘Disrespected’ During the ‘Special Forces’ Season Premiere

    TicketSmarter Fall Entertainment Guide – Eastern Illinois University Athletics

    TicketSmarter Fall Entertainment Guide – Eastern Illinois University Athletics

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    STELLA Automotive AI Appoints Fred Seidelman as Chief Technology Officer – Yahoo Finance

    STELLA Automotive AI Appoints Fred Seidelman as New Chief Technology Officer

    Saving Energy and Money with Smart Technology – Terms of Service with Clare Duffy – Podcast on CNN Podcasts – CNN

    Saving Energy and Money with Smart Technology – Terms of Service with Clare Duffy – Podcast on CNN Podcasts – CNN

    Four Strategic Signals Technology Leaders Are Tuning In To – SPONSOR CONTENT FROM ARM – Harvard Business Review

    Four Essential Strategic Signals Every Technology Leader Should Watch

    Virginia Tech hosts annual New Music + Technology Festival this week – Cardinal News

    Virginia Tech Kicks Off Exciting Annual New Music and Technology Festival This Week

    Why I gave the world wide web away for free | Tim Berners-Lee – The Guardian

    Why I Decided to Make the World Wide Web Free for Everyone | Tim Berners-Lee

    From shale to steam: Fossil fuel technology boosts clean geothermal energy – Washington Examiner

    From Shale to Steam: How Fossil Fuel Technology is Powering a Clean Geothermal Energy Revolution

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Science

Study investigates a massive ‘spider’ pulsar

June 1, 2024
in Science
Study investigates a massive ‘spider’ pulsar
Share on FacebookShare on Twitter

Study investigates a massive 'spider' pulsar

Binned X-ray and optical orbital light curves of J2215. Less-finely binned light curves are shown by faded markers. Credit: Sullivan and Romani, 2024.

Astronomers from the Stanford University in California have performed joint X-ray and optical observations of a massive “spider” pulsar designated PSR J2215+5135. Results of the observational campaign, presented in a paper published May 22 on the pre-print server arXiv, provide more hints into the nature of this pulsar.

The most rapidly rotating pulsars, those with rotation periods below 30 milliseconds, are known as millisecond pulsars (MSPs). Researchers assume that they are formed in binary systems when the initially more massive component turns into a neutron star that is then spun up due to accretion of matter from the secondary star.

A class of extreme binary pulsars with semi-degenerate companion stars is dubbed “spider pulsars.” These objects are further categorized as “black widows” if the companion has extremely low mass (less than 0.1 solar masses), while if the secondary star is heavier they are called “redbacks.”

In spider pulsars, gamma-ray emission and the relativistic particles from the pulsar wind irradiate the companion, consequently driving off a massive stellar wind. Observations show that when the pulsar wind and companion wind collide, they form the so-called intrabinary shock (IBS).

Located some 9,800 light years away, PSR J2215+5135 (or J2215 for short) is a redback spider MSP with a spin period of 2.61 milliseconds and spin-down power of about 50 decillion erg/s. The neutron star in the system has a mass of approximately 2.24 solar masses, while the companion mass is estimated to be about 0.3 solar masses. The orbital period of J2215 is 4.14 hours and its dispersion measure is 225.6 pc/cm3.

Recently, Stanford University’s Andrew Sullivan and Roger Romani employed ESA’s XMM-Newton spacecraft to take a closer look at J2215. Based on the XMM-Newton data, they produced orbital light curves of J2215 and used them to model the system properties.

The new observations found that the neutron star in J2215 has a mass of approximately 2.15 solar masses and that the companion star loses its mass at a level of 0.0003 Earth masses per year. Therefore, the researchers calculate that J2215 may become an isolated MSP.

Based on the X-ray analysis of J2215, the researchers found that the IBS still wraps around the pulsar. This is typical for redbacks as in such systems, the companion wind dominates the pulsar wind so the IBS wraps around the pulsar, while in black widows the IBS wraps around the companion object.

The study also found that J2215 is located about 10,800 light years away and its spin-down power is at a level of 52 decillion erg/s. The authors of the paper suppose that the IBS of J2215 may reprocess a large fraction of its spin-down power.

More information:
Andrew G. Sullivan et al, A Joint X-ray and Optical Study of the Massive Redback Pulsar J2215+5135, arXiv (2024). DOI: 10.48550/arxiv.2405.13889

Journal information:
arXiv

© 2024 Science X Network

Citation:
Study investigates a massive ‘spider’ pulsar (2024, June 1)
retrieved 1 June 2024
from https://phys.org/news/2024-05-massive-spider-pulsar.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Phys.org – https://phys.org/news/2024-05-massive-spider-pulsar.html

Tags: investigatessciencestudy
Previous Post

Honest dialogue is needed to help build consensus around solar radiation modification technology

Next Post

Webb telescope finds most distant galaxy ever observed, again

PFAS in East Selah drinking water – Washington State Department of Ecology (.gov)

Alarming PFAS Contamination Discovered in East Selah Drinking Water

October 1, 2025
Science Expo – Northern Public Radio

Discover the Wonders of Science at the Exciting Expo!

October 1, 2025
Science and artificial intelligence could help personalize brain stimulation for smokers – News-Medical

How Science and AI Are Transforming Personalized Brain Stimulation to Help Smokers Quit

October 1, 2025
Review: What’s good at new prime-cuts steakhouse in Virginia Beach – Yahoo

Review: What’s good at new prime-cuts steakhouse in Virginia Beach – Yahoo

October 1, 2025
STELLA Automotive AI Appoints Fred Seidelman as Chief Technology Officer – Yahoo Finance

STELLA Automotive AI Appoints Fred Seidelman as New Chief Technology Officer

October 1, 2025
Sports Illustrated’s Men’s College Basketball Preseason Top 25 – Sports Illustrated

Sports Illustrated’s Men’s College Basketball Preseason Top 25 – Sports Illustrated

October 1, 2025
Milan Fashion Week Asks the Question: Is It the Best-Dressed City in The World? – The New York Times

Milan Fashion Week Asks the Question: Is It the Best-Dressed City in The World? – The New York Times

October 1, 2025
How a government shutdown would impact the economy – CBS News

How a Government Shutdown Could Impact the Economy

October 1, 2025
Penn State-Themed Restaurant and Entertainment Spot Happy Valley Live Set to Open in State College – StateCollege.com

Penn State-Themed Restaurant and Entertainment Spot Happy Valley Live Set to Open in State College – StateCollege.com

October 1, 2025

Teresa Nicholson Celebrated as Pardee Hospital’s Teammate of the Year

September 30, 2025

Categories

Archives

October 2025
M T W T F S S
 12345
6789101112
13141516171819
20212223242526
2728293031  
« Sep    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (845)
  • Economy (865)
  • Entertainment (21,740)
  • General (17,342)
  • Health (9,909)
  • Lifestyle (879)
  • News (22,149)
  • People (868)
  • Politics (876)
  • Science (16,076)
  • Sports (21,366)
  • Technology (15,849)
  • World (848)

Recent News

PFAS in East Selah drinking water – Washington State Department of Ecology (.gov)

Alarming PFAS Contamination Discovered in East Selah Drinking Water

October 1, 2025
Science Expo – Northern Public Radio

Discover the Wonders of Science at the Exciting Expo!

October 1, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version