* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Tuesday, October 7, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Row K Entertainment Emerges as Major New Hollywood Buyer With Splashy TIFF Shopping Spree – TheWrap

    Row K Entertainment Emerges as Major New Hollywood Buyer With Splashy TIFF Shopping Spree – TheWrap

    Charlie Hunnam Reflects on Playing a Serial Killer in Monster: The Ed Gein Story – Yahoo

    Charlie Hunnam Reveals the Dark Challenges of Playing a Serial Killer in Monster: The Ed Gein Story

    “Reba” cast, then and now: See the stars 24 years later (and who’s reunited for another show) – Yahoo

    “Reba” cast, then and now: See the stars 24 years later (and who’s reunited for another show) – Yahoo

    Why Taylor Swift Name-Dropped Elizabeth Taylor in Her New Album – Yahoo

    Here’s Why Taylor Swift Dropped Elizabeth Taylor’s Name in Her New Album

    Al Roker Gives Olivia Dean an Unexpected ‘New Job’ on the ‘Today’ Show – Yahoo

    Al Roker Shocks Olivia Dean with an Exciting New Role on the ‘Today’ Show

    Books about the arts and some haunts for a Denton October – Denton Record-Chronicle

    Uncover Artistic Treasures and Spooky Adventures to Experience in Denton This October

  • 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
    ARM Institute opens technology project call to speed submarine manufacturing – The Robot Report

    ARM Institute Unveils Cutting-Edge Technology Project to Revolutionize Submarine Manufacturing

    Forget Cowbells. Cows Wear High-Tech Collars Now. – The New York Times

    Ditch the Cowbells: Discover the High-Tech Collars Transforming Cattle Care

    What the Recent Price Surge Means for Figure Technology Solutions After SEC Settlement – Yahoo Finance

    What the Recent Price Surge Reveals About Figure Technology Solutions Following SEC Settlement

    MAC Brings iPad Technology to Football Sidelines Across All 13 Member Schools – Sports Video Group

    MAC Brings iPad Technology to Football Sidelines Across All 13 Member Schools – Sports Video Group

    Technology Is Becoming More Important Than Humans In CX – No Jitter

    Technology Is Becoming More Important Than Humans In CX – No Jitter

    A Tech Expo Shows What China Can Make, but Not Who’ll Buy It All – The New York Times

    Inside China’s Tech Expo: Cutting-Edge Innovations Face Uncertain Demand

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Row K Entertainment Emerges as Major New Hollywood Buyer With Splashy TIFF Shopping Spree – TheWrap

    Row K Entertainment Emerges as Major New Hollywood Buyer With Splashy TIFF Shopping Spree – TheWrap

    Charlie Hunnam Reflects on Playing a Serial Killer in Monster: The Ed Gein Story – Yahoo

    Charlie Hunnam Reveals the Dark Challenges of Playing a Serial Killer in Monster: The Ed Gein Story

    “Reba” cast, then and now: See the stars 24 years later (and who’s reunited for another show) – Yahoo

    “Reba” cast, then and now: See the stars 24 years later (and who’s reunited for another show) – Yahoo

    Why Taylor Swift Name-Dropped Elizabeth Taylor in Her New Album – Yahoo

    Here’s Why Taylor Swift Dropped Elizabeth Taylor’s Name in Her New Album

    Al Roker Gives Olivia Dean an Unexpected ‘New Job’ on the ‘Today’ Show – Yahoo

    Al Roker Shocks Olivia Dean with an Exciting New Role on the ‘Today’ Show

    Books about the arts and some haunts for a Denton October – Denton Record-Chronicle

    Uncover Artistic Treasures and Spooky Adventures to Experience in Denton This October

  • 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
    ARM Institute opens technology project call to speed submarine manufacturing – The Robot Report

    ARM Institute Unveils Cutting-Edge Technology Project to Revolutionize Submarine Manufacturing

    Forget Cowbells. Cows Wear High-Tech Collars Now. – The New York Times

    Ditch the Cowbells: Discover the High-Tech Collars Transforming Cattle Care

    What the Recent Price Surge Means for Figure Technology Solutions After SEC Settlement – Yahoo Finance

    What the Recent Price Surge Reveals About Figure Technology Solutions Following SEC Settlement

    MAC Brings iPad Technology to Football Sidelines Across All 13 Member Schools – Sports Video Group

    MAC Brings iPad Technology to Football Sidelines Across All 13 Member Schools – Sports Video Group

    Technology Is Becoming More Important Than Humans In CX – No Jitter

    Technology Is Becoming More Important Than Humans In CX – No Jitter

    A Tech Expo Shows What China Can Make, but Not Who’ll Buy It All – The New York Times

    Inside China’s Tech Expo: Cutting-Edge Innovations Face Uncertain Demand

    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

New low-density exoplanet discovered with TESS

September 25, 2023
in Science
New low-density exoplanet discovered with TESS
Share on FacebookShare on Twitter

New low-density exoplanet discovered with TESS

TESS 2 min cadence PDCSAP light curves for TOI-1420. Transit events are visible roughly every 7 days. Credit: Yoshida et al., 2023.

Using NASA’s Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has detected a new exoplanet orbiting a distant star. The newfound alien world, designated TOI-1420 b, has an exceptionally low density. The finding is reported in a paper published September 18 on the pre-print server arXiv.

TESS is conducting a survey of about 200,000 of the brightest stars near the sun with the aim of searching for transiting exoplanets. So far, it has identified nearly 6,800 candidate exoplanets (TESS Objects of Interest, or TOI), of which 385 have been confirmed so far.

Now, a group of astronomers led by Stephanie Yoshida of the Harvard-Smithsonian Center for Astrophysics (CfA) in Cambridge, Massachusetts, reports the confirmation of another planet monitored by TESS. The team has identified a transit signal in the light curve of TOI-1420—a late G-dwarf star about 658 light years away. The planetary nature of this signal was validated by follow-up observations using various telescopes.

“We have confirmed TOI-1420b as an exceptionally low-density planet in a 6.96 day orbit around a late G dwarf,” the researchers wrote in the paper.

TOI-1420 b has a radius of about 11.89 Earth radii and a mass of around 25.1 Earth masses, what yields an ultra-low density of only 0.082 g/cm3. The planet orbits its host at a distance of 0.07 AU from it and has an equilibrium temperature of about 957 K.

The astronomers underlined that TOI-1420 b is the largest-known planet with a mass less than 50 Earth masses. The planet’s low density suggests that it contains a sizable envelope of hydrogen and helium. Using planetary structure models, the researchers estimate that TOI-1420 b has a large envelope mass fraction of approximately 0.82, what implies a core mass of 4.0 Earth masses.

When it comes to the parent star TOI-1420, it is comparable in size and mass to the sun. The star has an effective temperature of about 5,510 K and a metallicity at a level of 0.28. The age of TOI-1420 is not well constrained, however, the authors of the paper estimate that the star is not older than 10.7 billion years.

Summing up the results, the scientists noted that low-density planets like TOI-1420 b are an excellent target for future atmospheric characterization and dynamical studies, given that they are more susceptible to outflows than higher-gravity planets.

“In all, TOI-1420 b presents a number of exciting future prospects for atmospheric and dynamical characterization. Comparative planetology of TOI-1420 b, WASP-107 b, and other similarly low-density worlds will ultimately help unveil their formation and evolution histories,” the researchers concluded.

More information:
Stephanie Yoshida et al, TESS Spots a Super-Puff: The Remarkably Low Density of TOI-1420b, arXiv (2023). DOI: 10.48550/arxiv.2309.09945

Journal information:
arXiv

© 2023 Science X Network

Citation:
New low-density exoplanet discovered with TESS (2023, September 25)
retrieved 25 September 2023
from https://phys.org/news/2023-09-low-density-exoplanet-tess.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/2023-09-low-density-exoplanet-tess.html

Tags: Exoplanetlow-densityscience
Previous Post

Scientists develop nanomaterials using a bottom-up approach

Next Post

The Daily Sweat: Eagles-Buccaneers, Rams-Bengals on another Monday night doubleheader

Ecology blazing the trail for more clean energy projects – Washington State Department of Ecology (.gov)

How Ecology is Powering the Shift to a Greener Energy Future

October 7, 2025
Penn State Brandywine Earth sciences professor earns two national awards – Penn State University

Penn State Brandywine Earth sciences professor earns two national awards – Penn State University

October 7, 2025
UNESCO and CODATA launch resources on open science for crisis response – unesco.org

UNESCO and CODATA Launch Innovative Open Science Tools to Enhance Crisis Response

October 7, 2025
New Engen Report Identifies Key Trends and Winning Strategies for Active Lifestyle Brands in 2025 and Beyond – Fitt Insider

New Engen Report Identifies Key Trends and Winning Strategies for Active Lifestyle Brands in 2025 and Beyond – Fitt Insider

October 7, 2025
ARM Institute opens technology project call to speed submarine manufacturing – The Robot Report

ARM Institute Unveils Cutting-Edge Technology Project to Revolutionize Submarine Manufacturing

October 7, 2025
Seahawks’ defensive depth being challenged as injuries stack up – FOX Sports

Seahawks’ defensive depth being challenged as injuries stack up – FOX Sports

October 7, 2025
World Mental Health Day Festival and gala set for this week in NYC – MSNBC News

World Mental Health Day Festival and gala set for this week in NYC – MSNBC News

October 6, 2025
Green economy means jobs for NJ, report says – NJ Spotlight News

Green economy means jobs for NJ, report says – NJ Spotlight News

October 6, 2025
Row K Entertainment Emerges as Major New Hollywood Buyer With Splashy TIFF Shopping Spree – TheWrap

Row K Entertainment Emerges as Major New Hollywood Buyer With Splashy TIFF Shopping Spree – TheWrap

October 6, 2025
Republicans are holding Americans’ health care hostage — and lying about it – MSNBC News

How Republicans Are Holding Americans’ Health Care Hostage – and Deceiving the Public

October 6, 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 (855)
  • Economy (875)
  • Entertainment (21,749)
  • General (17,452)
  • Health (9,917)
  • Lifestyle (888)
  • News (22,149)
  • People (877)
  • Politics (886)
  • Science (16,086)
  • Sports (21,376)
  • Technology (15,856)
  • World (858)

Recent News

Ecology blazing the trail for more clean energy projects – Washington State Department of Ecology (.gov)

How Ecology is Powering the Shift to a Greener Energy Future

October 7, 2025
Penn State Brandywine Earth sciences professor earns two national awards – Penn State University

Penn State Brandywine Earth sciences professor earns two national awards – Penn State University

October 7, 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