Tag Archive for 'T-dwarf'

An artist’s impression of the UPM J1040-3551 system against the backdrop of the Milky Way as observed by ESA’s Gaia satellite; on the left, UPM J1040-3551 Aa & Ab appears as a distant bright orange dot, with an inset revealing these two M-type stars in orbit; on the right, in the foreground, a pair of cold brown dwarfs -- UPM J1040-3551 Ba & Bb -- orbit each other for a period of decades while collectively circling UPM J1040-3551 Aab in a vast orbit that takes over 100,000 years to complete. Image credit: Jiaxin Zhong / Zenghua Zhang.

Astronomers Discover Extremely Rare Hierarchical Quadruple System

Aug 19, 2025 by News Staff

Named UPM J1040-3551 AabBab, the newly-discovered quadruple star system consists of a pair of cold brown dwarfs and a pair of young red dwarfs. An artist’s...

Brown dwarfs are common in the Universe but are rarely found to emit radio waves. Image credit: NASA.

ASKAP Telescope Detects Periodic Radio Emission from Ultracool Dwarf

Jul 13, 2023 by Enrico de Lazaro

The T8-dwarf WISE J062309.94-045624.6 is the coolest and latest-type star observed to produce radio emission, according to an analysis of data from CSIRO’s...

GLASS-JWST-BD1. Image credit: Nonino et al., arXiv: 2207.14802.

Webb Detects Cold Brown Dwarf Roughly 2,000 Light-Years Away

Aug 19, 2022 by Natali Anderson

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have spotted a faint, distant, and cold brown dwarf in the images of the massive galaxy cluster...

Citizen Scientist Discovers 34 New Ultracool Brown Dwarfs

Jul 8, 2022 by News Staff

Using data from the NOIRLab Source Catalog (NSC) DR2, citizen scientist Frank Kiwy has discovered 34 new M-, L-, or T-type dwarfs comoving with low-mass...

Spitzer Discovers Three Most Rapidly-Rotating Brown Dwarfs

Apr 8, 2021 by News Staff

Astronomers using NASA’s Spitzer Space Telescope have identified three fastest-spinning ultracool dwarfs ever found: 2MASS J03480772-6022270, 2MASS J12195156+3128497,...

This visualization represents a 3D map of brown dwarfs (red dots) that have been discovered within 65 light-years of the Sun. The Sun, which is not shown, is located at the center of the view. The disk of the Milky Way appears in the background. Other stars close to the Sun appear as variously colored points in the field. Image credit: NOIRLab / NSF / AURA / J. da Silva.

Astronomers Discover 38 New Cool Brown Dwarfs in Solar Neighborhood

Jan 15, 2021 by News Staff

Astronomers and citizen scientists from the Backyard Worlds: Planet 9 project have announced an unprecedented census of 525 L, T, and Y-type dwarfs within...

An artist’s impression of BDR J1750+3809. Image credit: Danielle Futselaar / ASTRON.

LOFAR Radio Telescope Directly Detects New Brown Dwarf

Nov 9, 2020 by News Staff

Astronomers using the Low-Frequency Array (LOFAR) radio telescope have discovered a new brown dwarf, a substellar object not quite massive enough to fuse...

Artist’s impression of a T-dwarf. Image credit: R. Hurt / NASA.

First Discovery for ‘Backyard Worlds: Planet 9’ Project: Cold Brown Dwarf

Jun 3, 2017 by Sergio Prostak

Professional and citizen astronomers with the NASA-funded ‘Backyard Worlds: Planet 9’ project have made their first significant discovery: a new brown...