• About
  • Advertise
  • Privacy Policy
  • Contact
Neo Science Hub
  • Home
  • eMag Archives
  • Categories
  • About us
  • Contact us
No Result
View All Result
  • Home
  • eMag Archives
  • Categories
  • About us
  • Contact us
No Result
View All Result
Neo Science Hub
No Result
View All Result
  • Home
  • eMag Archives
  • Categories
  • About us
  • Contact us
Home Research & Development

A star with a heartbeat & without a magnetic field discovered

Neo Science Hub by Neo Science Hub
February 16, 2022
in Research & Development, Space Technology
0
Star discovered in space | Neo Science Hub

Star discovered in space | Neo Science Hub

0
SHARES
0
VIEWS
Share on FacebookShare on Twitter

A group of Indian and international scientists have spotted a peculiar binary star that shows heartbeat but no pulsations contrary to the norm of binary stars of sporting both heartbeats as well as pulsations. This star is called HD73619 in Praesepe (M44), located in the Cancer constellation, one of the closest open star clusters to the Earth.

A total of about 180 heartbeat stars are known to date. The name ‘Heartbeat’ stems from the resemblance of the path of the star to an electrocardiogram of the human heart. These are the binary star systems where each star travels in a highly elliptical orbit around the common centre of mass, and the distance between the two stars varies drastically as they orbit each other. When the stars are at closest passage of binary systems, a sudden increase in integrated brightness with amplitude of the order of several parts-per-thousand (ppt) is observed. As the components move apart, the light variation falls and finally becomes flat, indicating that combined flux is reduced, resulting in alternating peaks and troughs in their light curves. The pulsational activity of such stars is due to the oscillations in the component stars when they are at their closest approach.

A team of thirty-three scientists, led by Dr. Santosh Joshi from Aryabhatta Research Institute of Observational Sciences (ARIES), an autonomous institution under the Department of Science & Technology (DST), Government of India, carried out analysis of photometric and high-resolution spectroscopic observations of HD73619 obtained using eight ground-based telescopes located in different parts of the globe.

 They have found that HD73619 is the first member of heartbeat systems in binary chemically peculiar stars that does not show any pulsational/vibrational activity at their closest approach. Chemically peculiar stars are those stars which have an unusual abundance of elements heavier than hydrogen and helium on the surface. Their data also revealed that the newly discovered heartbeat star exhibits either very weak or no magnetic field. Absence of weak magnetic field means that any dark spots on the HD73619 may have different and hitherto unknown origin as compared to sunspots which are created by strong magnetic field. The findings have been accepted for publication by Monthly Notices of Royal Astronomical Society, a scientific journal of Oxford University Press. The discovery is of vital importance for the study of inhomogeneities due to spots in non-magnetic stars and to investigate the origin of the pulsational variability. The research has been the result of the Nainital-Cape survey, one of the longest ground-based surveys to search and study the pulsation variability in a sample of CP stars which was initiated about two decades ago by astronomers of ARIES, Nainital, and South African Astronomical Observatory SAAO, Cape Town. As part of this survey, the group had monitored a few members of Praesepe in the past. The other members of this wide collaboration are from Uganda, Thailand, United States of America, Russia, Belgium, United Kingdom, France, Spain, South Africa, Poland, and Turkey. This joint work is supported by the Department of Science & Technology (DST), Govt. of India, and the Belgian Federal Science Policy Office (BELSPO), Govt. of Belgium under the Belgo-Indian Network for Astronomy and Astrophysics (BINA), project.

Share this:

  • Click to share on Twitter (Opens in new window)
  • Click to share on LinkedIn (Opens in new window)
  • Click to share on Facebook (Opens in new window)
  • Click to share on WhatsApp (Opens in new window)
  • Click to share on Tumblr (Opens in new window)
  • Click to share on Telegram (Opens in new window)
  • Click to email a link to a friend (Opens in new window)
Tags: featuredresearchspace
Previous Post

Robotic Surgery is the Future

Next Post

Artificial Intelligence isn’t difficult as it sounds

Neo Science Hub

Neo Science Hub

Related Posts

Vulcan performs static-fire test | Neosciencehub
Science News

Vulcan performs static-fire test

June 8, 2023
Nuview reveals backers including actor Leonardo DiCaprio | Neosciencehub
Science News

Nuview reveals backers including actor Leonardo DiCaprio

June 8, 2023
ChatGPT & Dark side of AI | Neosciencehub | NSH
Research & Development

Unveiling the Risks: ChatGPT and the Dark Side of AI

June 7, 2023
CCMB Collaborates in Development of ChatGPT-inspired Algorithm for Genetics | Glintinsights Media | Neosciencehub
Research & Development

CCMB Collaborates in Development of ChatGPT-inspired Algorithm for Genetics

June 6, 2023
Cryptic Species of Bent-Winged Bat in Makuta Cave | Neosciencehub
Research & Development

OU scientist Discovers Cryptic Species of Bent-Winged Bat in Makuta Cave

June 3, 2023
Chandrayaan 3 launch soon | Neosciencehub
Science News

Chandrayaan-3 is getting ready for launch by ISRO

May 30, 2023
Next Post
Ai is not as difficult - Neo Science Hub

Artificial Intelligence isn’t difficult as it sounds

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Follow us on Social

  • Trending
  • Comments
  • Latest
Inspires Start-ups at ASPIRE-BioNEST | Neosciencehub

Dr. Renu Swarup Inspires Start-ups at ASPIRE-BioNEST

June 3, 2023
NEW REPORT IDENTIFIES SOLUTIONS TO COMBAT ANTIMICROBIAL RESISTANCE IN INDIA | Neosciencehub

NEW REPORT IDENTIFIES SOLUTIONS TO COMBAT ANTIMICROBIAL RESISTANCE IN INDIA

June 3, 2023
Tips and tricks for healthy women | World Hypertension Day | Neosciencehub

Tips and Tricks for a Healthy Heart in Women

June 3, 2023
IIT Kharagpur cover | neosciencehub

IIT Kharagpur Researchers Aids to Green Construction to Reduce Global Warming

June 3, 2023
Tips and tricks for healthy women | World Hypertension Day | Neosciencehub

Tips and Tricks for a Healthy Heart in Women

1
NEW REPORT IDENTIFIES SOLUTIONS TO COMBAT ANTIMICROBIAL RESISTANCE IN INDIA | Neosciencehub

NEW REPORT IDENTIFIES SOLUTIONS TO COMBAT ANTIMICROBIAL RESISTANCE IN INDIA

1
Neo Science Hub Health Sciences

Research Reveals Coping mechanisms for Covid-related loss of smell

0
Neo Science Hub Diabetes

A Cure for Diabetes?

0
ChatGPT & Dark side of AI | Neosciencehub | NSH

Unveiling the Risks: ChatGPT and the Dark Side of AI

June 7, 2023
Known Symptoms for Brain Tumour | Neosciencehub | NSH

Lesser Known Symptoms of a Brain Tumour

June 7, 2023
Government band 14 combination medicines | neosciencehub | NSH

Government Bans 14 Fixed-Dose Combination Medicines

June 6, 2023
Montra Electric Super auto | Neosciencehub | NSH

Montra Electric Launches Super Auto

June 6, 2023

Recent News

ChatGPT & Dark side of AI | Neosciencehub | NSH

Unveiling the Risks: ChatGPT and the Dark Side of AI

June 7, 2023
Known Symptoms for Brain Tumour | Neosciencehub | NSH

Lesser Known Symptoms of a Brain Tumour

June 7, 2023
Government band 14 combination medicines | neosciencehub | NSH

Government Bans 14 Fixed-Dose Combination Medicines

June 6, 2023
Montra Electric Super auto | Neosciencehub | NSH

Montra Electric Launches Super Auto

June 6, 2023
  • About
  • Advertise
  • Privacy Policy
  • Contact
For Feedback : Email Us

Copyrights © 2023 Neo Science Hub

No Result
View All Result
  • Home
  • eMag Archives
  • Categories
  • About us
  • Contact us

Copyrights © 2023 Neo Science Hub

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