Stellar astrophysics end to end — protostars in molecular clouds, main-sequence oddities, red giants, white dwarfs, and the supernovae and kilonovae that seed everything else. https://deepfield.news/feeds/stars.xml 2026-08-12T18:40:03Z Deep Field Aggregated from the publishers named in each entry. Rights remain with them. https://deepfield.news/icon-180.png tag:deepfield.news,2026-08-12:story/a1273058f38b37e5 2026-08-12T18:40:03Z 2026-08-12T18:40:03Z Phys.org

More than 70% of massive stars are born in close binary systems, where gravitational tugs and mass transfer between companions dramatically alter their evolution. Yet once the interaction ends—whether through mass transfer, merger or the supernova explosion of one partner—the…

Headline and summary from Phys.org; follow the link for the full article. tag:deepfield.news,2026-08-12:story/d933cd44e7f74f13 2026-08-12T16:00:49Z 2026-08-12T16:00:49Z AAS Nova

Tekeba Olbemo et al 2026 ApJ 1004 38 New constraints on the mass of V1674 Herculis from X-ray observations place the white dwarf around 1.09 solar masses, well below the near-Chandrasekhar mass proposed in previous works.

Headline and summary from AAS Nova; follow the link for the full article. tag:deepfield.news,2026-08-12:story/7cf67f1f78ab088d 2026-08-12T15:00:00Z 2026-08-12T15:00:00Z Sky & Telescope

The star at the heart of the oft-observed Helix Nebula powered a clumpy wind before it died. Now, new images capture these clumps’ dissolution into the space between stars.

Headline and summary from Sky & Telescope; follow the link for the full article. tag:deepfield.news,2026-08-12:story/c23c3ba518f6ceff 2026-08-12T10:15:19Z 2026-08-12T10:15:19Z ScienceDaily

James Webb has captured a striking new infrared view of NGC 2392, the Lion Nebula, revealing the dramatic aftermath of a dying Sun-like star. At its center, a scorching white dwarf is blasting radiation into surrounding gas and dust, carving out the nebula’s lion-like face while…

Headline and summary from ScienceDaily; follow the link for the full article. tag:deepfield.news,2026-08-11:story/ea0c5c1ac6d84314 2026-08-11T21:00:38Z 2026-08-11T21:00:38Z AAS Nova

A supernova discovered in 2010 appears to have created tens of thousands of Earth masses of dust.

Headline and summary from AAS Nova; follow the link for the full article. tag:deepfield.news,2026-08-11:story/e10d42d15acf7182 2026-08-11T20:50:01Z 2026-08-11T20:50:01Z Phys.org

Like a collage made of layered sheets of colored cellophane, a vibrant new image layers observations of a famous star-forming nebula from NASA's space telescopes. The resulting cosmic "craft" reveals new details about the star-forming region known as 30 Doradus, or the Tarantula…

Headline and summary from Phys.org; follow the link for the full article. tag:deepfield.news,2026-08-11:story/174862e8b73cde39 2026-08-11T20:00:00Z 2026-08-11T20:00:00Z Space.com

Astronomers have nearly doubled the number of known cosmic X-ray sources.

Headline and summary from Space.com; follow the link for the full article. tag:deepfield.news,2026-08-11:story/36e2db1a1bae32fb 2026-08-11T19:06:45Z 2026-08-11T19:06:45Z Universe Today

Astronomers were fortunate when the Einstein Probe detected the difficult-to-observe initial shock break out (SBO) from a supernova. The SBO is the first electromagnetic indication that a star is going to explode, and by observing it and the aftermath, researchers were able to…

Headline and summary from Universe Today; follow the link for the full article. tag:deepfield.news,2026-08-11:story/47da0d331fcfb29a 2026-08-11T18:40:07Z 2026-08-11T18:40:07Z Phys.org

University of Missouri researchers have uncovered evidence that challenges one of astronomy's most trusted assumptions, a breakthrough that could reshape how scientists measure galaxies and reconstruct the history of the universe.

Headline and summary from Phys.org; follow the link for the full article. tag:deepfield.news,2026-08-11:story/a14c7c3f3e4f5f9c 2026-08-11T14:00:00Z 2026-08-11T14:00:00Z Space.com

The Lion Nebula glows gloriously in this new snapshot from the James Webb Space Telescope.

Headline and summary from Space.com; follow the link for the full article. tag:deepfield.news,2026-08-11:story/d7121c91aa8f4db7 2026-08-11T08:00:24Z 2026-08-11T08:00:24Z EarthSky

Aquila the Eagle is home to the bright star Altair, which forms one corner in the Summer Triangle. Look for it in the evening sky from July to November. The post Aquila the Eagle soars along the Milky Way first appeared on EarthSky .

Headline and summary from EarthSky; follow the link for the full article. tag:deepfield.news,2026-08-07:story/ec6b8baf973e7f89 2026-08-07T16:00:57Z 2026-08-07T16:00:57Z AAS Nova

Astronomers may have spotted the crumbs of a recently eaten asteroid around a white dwarf star.

Headline and summary from AAS Nova; follow the link for the full article. tag:deepfield.news,2026-08-07:story/23a1aceccd68cb96 2026-08-07T16:00:13Z 2026-08-07T16:00:13Z AAS Nova

Tian-Xian Luo et al 2026 ApJ 1003 152 Polarization measurements show evidence of shock compression and possible interaction between a supernova remnant and previously formed circumstellar shells from the progenitor’s mass loss.

Headline and summary from AAS Nova; follow the link for the full article. tag:deepfield.news,2026-08-06:story/1fad11c2cbaa3997 2026-08-06T08:00:00Z 2026-08-06T08:00:00Z ESA Science

Image: This NASA/ESA/CSA James Webb Space Telescope Picture of the Month takes us to a fantastical realm within our home galaxy , where piercing starlight and billowing winds sculpt dust clouds into inventive shapes. This scene is from the Carina Nebula, which lies just 7500…

Headline and summary from ESA Science; follow the link for the full article. tag:deepfield.news,2026-08-04:story/b71f693b0c48d641 2026-08-04T16:00:52Z 2026-08-04T16:00:52Z AAS Nova

Astrobites reports on a whodunit of cosmic significance: who killed star formation in massive elliptical galaxies?

Headline and summary from AAS Nova; follow the link for the full article. tag:deepfield.news,2026-08-04:story/589b1101a91e926d 2026-08-04T16:00:08Z 2026-08-04T16:00:08Z AAS Nova

Mayura Balakrishnan et al 2026 ApJ 1003 128 Sgr A East strongly overlaps with plasma associated with the Milky Way’s central supermassive black hole, but new efforts to disentangle this emission have successfully isolated the remnant’s emission.

Headline and summary from AAS Nova; follow the link for the full article. tag:deepfield.news,2026-08-03:story/05050da38fc00034 2026-08-03T16:00:43Z 2026-08-03T16:00:43Z AAS Nova

Md Redyan Ahmed et al 2026 AJ 172 21 Slightly smaller than Jupiter but roughly 80 times as massive, TOI-2155b can provide a valuable test for models of stellar-mass objects near the hydrogen-burning mass limit.

Headline and summary from AAS Nova; follow the link for the full article. tag:deepfield.news,2026-08-01:story/29bdd39117299cb3 2026-08-01T13:33:41Z 2026-08-01T13:33:41Z ScienceDaily

Primordial black holes may occasionally pass through white dwarf stars and trigger enormous Type Ia supernova explosions. Researchers found that these events could explain chemical patterns seen in supernova remnants, nearby explosions, and stars across the Milky Way.

Headline and summary from ScienceDaily; follow the link for the full article. tag:deepfield.news,2026-07-31:story/0cfb029af56dc410 2026-07-31T05:15:53Z 2026-07-31T05:15:53Z ScienceDaily

Scientists traced a mysterious surge of low-energy gamma rays from zinc-70 to magnetic changes occurring inside its nucleus. The breakthrough could improve models of how stars, supernovae, and neutron star mergers create heavy elements.

Headline and summary from ScienceDaily; follow the link for the full article. tag:deepfield.news,2026-07-30:story/7dfad3ea915c8001 2026-07-30T16:00:19Z 2026-07-30T16:00:19Z AAS Nova

Susanne Pfalzner et al 2026 ApJ 1003 119 The disks around young high-mass stars survive for roughly 3.72 million years, and those around low-mass stars survive for 7.20 million years, though the distributions for both populations are quite broad.

Headline and summary from AAS Nova; follow the link for the full article. tag:deepfield.news,2026-07-28:story/8bf935a25ec9a136 2026-07-28T16:00:56Z 2026-07-28T16:00:56Z AAS Nova

Lulu Xu et al 2026 ApJS 284 54 Of 7,229 flares from 1,430 stars, most came from stars with temperatures below 4000K and rotation periods shorter than 4 days; most flares lasted less than 2 hours.

Headline and summary from AAS Nova; follow the link for the full article. tag:deepfield.news,2026-07-28:story/e96f80822a0538ed 2026-07-28T16:00:44Z 2026-07-28T16:00:44Z AAS Nova

Astrobites reports on the interplay between the interstellar medium and star formation in simulated galaxies.

Headline and summary from AAS Nova; follow the link for the full article. tag:deepfield.news,2026-07-28:story/44279c537b18871a 2026-07-28T12:00:00Z 2026-07-28T12:00:00Z ESO

At long last, astronomers have firm evidence that Betelgeuse, one of the most famous stars in the night sky, is not alone. Using the European Southern Observatory’s Very Large Telescope (ESO's VLT), a team led by French researcher Miguel Montargès obtained the clearest image…

Headline and summary from ESO; follow the link for the full article. tag:deepfield.news,2026-07-24:story/e9bb4c798c3ea23f 2026-07-24T16:00:56Z 2026-07-24T16:00:56Z AAS Nova

Wen-Fan Feng et al 2026 ApJL 1003 L35 According to calculations, in a 4-year period researchers may detect of order one compact binary system in which the binary’s inspiral and the spin of its neutron star component both produce gravitational waves.

Headline and summary from AAS Nova; follow the link for the full article. tag:deepfield.news,2026-07-21:story/7d075f8c43984b1a 2026-07-21T03:36:16Z 2026-07-21T03:36:16Z ScienceDaily

Dying Sun-like stars may not fade away quietly. As blobs of gas erupt unevenly from their swollen surfaces, each burst gives the star a tiny push in the opposite direction. Thousands of these random kicks could eventually break apart distant stellar pairs or, in rare cases…

Headline and summary from ScienceDaily; follow the link for the full article. tag:deepfield.news,2026-07-20:story/dc898f87e1cb3ad4 2026-07-20T16:00:17Z 2026-07-20T16:00:17Z AAS Nova

The galaxies FCC 224 and FCC 240 appear to be a rare example of a dark-matter-poor, globular-cluster-rich pair formed via colliding dwarf galaxies.

Headline and summary from AAS Nova; follow the link for the full article. tag:deepfield.news,2026-07-16:story/766ffbb4fc553e15 2026-07-16T10:52:02Z 2026-07-16T10:52:02Z ScienceDaily

A distant Sun-like star appears to have devoured one of its planets, leaving behind a surprising chemical fingerprint. Researchers found an unusually high concentration of lithium, a strong sign that planetary material was mixed into the star. Careful comparisons with dozens of…

Headline and summary from ScienceDaily; follow the link for the full article. tag:deepfield.news,2026-07-15:story/7f69888c584fc70c 2026-07-15T16:00:57Z 2026-07-15T16:00:57Z AAS Nova

White dwarfs with metals in their spectra preserve a record of planets that once orbited them. New research examines these spectra for signs that the metals underwent technological processing.

Headline and summary from AAS Nova; follow the link for the full article. tag:deepfield.news,2026-07-15:story/d8966e78dea69bb4 2026-07-15T06:30:25Z 2026-07-15T06:30:25Z ScienceDaily

Four nearby white dwarf stars have been discovered hiding in plain sight beside brighter red dwarf companions. Hubble's ultraviolet observations finally revealed the long-hidden stellar remnants, including one just 25 light-years away that took nearly three decades to confirm…

Headline and summary from ScienceDaily; follow the link for the full article. tag:deepfield.news,2026-07-14:story/2156a23ae41d102d 2026-07-14T16:00:04Z 2026-07-14T16:00:04Z AAS Nova

Gourav Kumawat et al 2026 AJ 171 306 Analysis of blue straggler stars in 56 Milky Way globular clusters finds no evidence for a bimodal distribution in color–magnitude space due to differing formation pathways.

Headline and summary from AAS Nova; follow the link for the full article. tag:deepfield.news,2026-07-10:story/aacdf68636ffd860 2026-07-10T06:04:44Z 2026-07-10T06:04:44Z ScienceDaily

Scientists have identified new clues that could help astronomers spot one of the most famous hypothetical alien megastructures: a Dyson sphere. The study finds that red dwarfs and white dwarfs are the most promising stars to examine, since advanced civilizations could…

Headline and summary from ScienceDaily; follow the link for the full article. tag:deepfield.news,2026-07-08:story/bc446166b640fe26 2026-07-08T21:48:13Z 2026-07-08T21:48:13Z AAS Nova

Do all clusters form stars with the same distribution of masses? Researchers have demonstrated that the initial mass function, often assumed to be universal, varies across Milky Way clusters.

Headline and summary from AAS Nova; follow the link for the full article. tag:deepfield.news,2026-07-08:story/2eac9068cc92ec85 2026-07-08T15:00:06Z 2026-07-08T15:00:06Z Physics World

New analysis of JWST observations suggests that the Bullet Cluster of galaxies might only have half as much dark matter as previously believed

Headline and summary from Physics World; follow the link for the full article. tag:deepfield.news,2026-07-07:story/909e56894e00d026 2026-07-07T16:00:05Z 2026-07-07T16:00:05Z AAS Nova

Astrobites reports on whether some of the most massive galaxies in the early universe are truly quenched, or if they're just hiding their star formation behind dust.

Headline and summary from AAS Nova; follow the link for the full article. tag:deepfield.news,2026-07-06:story/e7849dd207295851 2026-07-06T16:00:18Z 2026-07-06T16:00:18Z AAS Nova

Jing Lu et al 2026 ApJL 1002 L11 Though Type Ic supernovae are classified in part by the lack of helium lines in their spectra, recent modeling of a near-infrared supernova spectrum suggests that helium is present but undetectable in the optical.

Headline and summary from AAS Nova; follow the link for the full article. tag:deepfield.news,2026-07-01:story/940e152f5738ff17 2026-07-01T17:22:17Z 2026-07-01T17:22:17Z AAS Nova

A recent study has leveraged TESS's full-sky coverage to build a catalog of stellar rotation periods for over a million stars.

Headline and summary from AAS Nova; follow the link for the full article. tag:deepfield.news,2026-07-01:story/661ab0045659cafd 2026-07-01T02:54:55Z 2026-07-01T02:54:55Z AAS Nova

What's behind the population of compact, reddish objects spotted by JWST? Two recent research articles have explored theories involving young globular clusters and little red dots with little blue companions.

Headline and summary from AAS Nova; follow the link for the full article. tag:deepfield.news,2026-06-29:story/d99d650d67261f39 2026-06-29T16:00:00Z 2026-06-29T16:00:00Z AAS Nova

Clecio R. Bom et al 2026 ApJL 1001 L37 The combination of data and binary neutron star merger simulations shows that the source of GRB 230307A is unlikely to be a globular cluster; a disk origin is possible but requires finely tuned conditions.

Headline and summary from AAS Nova; follow the link for the full article.