By combining data from the DESI Legacy Imaging Surveys and the Gemini South telescope, astronomers have investigated three ultra-faint dwarf galaxies that reside in a region of space isolated from the environmental influence of larger objects. The galaxies, located in the direction of NGC 300, were found to contain only very old stars, supporting the theory that events in the early universe cut star formation short in the smallest galaxies.

Phys.org

United Kingdom

DECam and Gemini South discover three tiny 'stellar-ghost-town' galaxies

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By combining data from the DESI Legacy Imaging Surveys and the Gemini South telescope, astronomers have investigated three ultra-faint dwarf galaxies that reside in a region of space isolated from the environmental influence of larger objects. The galaxies, located in the direction of NGC 300, were found to contain only very old stars, supporting the theory that events in the early Universe cut star formation short in the smallest galaxies.

Science Daily

Daniel Hogan

United States

Three tiny 'stellar-ghost-town' galaxies discovered

By combining data from the Gemini South telescope in Chile and the DECam Legacy Survey (DECaLS), which contains a huge catalog of images taken at Cerro Tololo, a team of astronomers has discovered three ultra-faint dwarf galaxies that contain only very old stars, reinforcing the theory that events in the early Universe may have disrupted star formation in smaller galaxies. The galaxies investigated are located in a region of space isolated from …

Mediante la combinacion de datos provenientes del telescopio Gemini Sur, ubicado en Chile, y de la investigacion DECam Legacy Survey (DECaLS), que contiene un enorme catalogo de imagenes tomadas desde Cerro Tololo, un equipo de astronomos descubrio tres galaxias enanas ultra tenues que solo contienen estrellas muy viejas, reforzando la teoria sobre eventos ocurridos en el Universo primitivo que pudieron interrumpir la formacion de estrellas en l…

Desde Chile descubren “galaxias fantasmas”, un nuevo misterio cósmico

Newswise

Charlottesville

Albemarle County

Virginia

“Ghost galaxies” discovered in Chile, a new cosmic mystery

It is not clear how their star formation was stifled in the early universe.

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IFLScience

Newly Discovered Stellar "Ghost Town” Galaxies Were Strangled A Long Time Ago

Astronomers have investigated three ultra-weak dwarf galaxies that reside in a region of space isolated from the environmental influence of larger objects. ...

Astrónomos han investigado tres galaxias enanas ultra débiles que residen en una región del espacio aislada de la influencia ambiental de objetos más grandes. ...

Descubren pequeñas galaxias que parecen "ciudades fantasmas estelares"

diarioestrategia.cl

They discover small galaxies that look like "stellar ghost cities"

Madrid. Astronomers have investigated three ultra-weak dwarf galaxies that reside in a region of space isolated from the environmental influence of larger objects. Combining data from the DECam Legacy Survey (DECaLS) and the Gemini South telescope, it was discovered that they contained only very old stars, which supports the theory [...] La entrada Discover small galaxies that look like “stellar ghost cities” aparece primero en La Jornada de Ori…

Madrid. Astrónomos han investigado tres galaxias enanas ultra débiles que residen en una región del espacio aislada de la influencia ambiental de objetos más grandes. Combinando datos de los sondeos de imágenes del DECam Legacy Survey (DECaLS) y del telescopio Gemini Sur, se descubrió que contenían solo estrellas muy antiguas, lo que respalda la teoría […] La entrada Descubren pequeñas galaxias que parecen “ciudades fantasmas estelares” aparece …

La Jornada de Oriente

excelsior The galaxies investigated are in a region of space isolated from the influence of other major objects, in the direction of NGC 300 A study led by astronomer David Sand revealed three ultra-weak dwarf galaxies near NGC 300, in the constellation of the Sculptor. These galaxies, detected with DECam and analyzed with the Gemini South telescope, are composed only of ancient stars, without traces of gas. This finding supports the theory that…

excelsior Las galaxias investigadas están en una región del espacio aislada de la influencia de otros objetos mayores, en la dirección de NGC 300 Un estudio liderado por el astrónomo David Sand reveló tres galaxias enanas ultra débiles cerca de NGC 300, en la constelación del Escultor. Estas galaxias, detectadas con el DECam y analizadas con el telescopio Gemini Sur, están compuestas únicamente por estrellas antiguas, sin rastros de gas. Este ha…

Descubren pequeñas galaxias que parecen ‘ciudades fantasmas estelares’

marquesina.mx

They discover small galaxies that look like ‘stellar ghost cities’

Three Tiny ‘Stellar-Ghost-Town’ Dwarf Galaxies Discovered | NOIRLabCosmoview Episode 93: By combining data from the DESI Legacy Imaging Surveys and the Gemini South telescope, astronomers have investigated three ultra-faint dwarf galaxies that reside in a region of space isolated from the environmental influence of larger objects. The galaxies, located in the direction of NGC 300, were found to contain only very old stars, supporting the theory …

friendsofnasa.org

Three Tiny ‘Stellar-Ghost-Town’ Dwarf Galaxies Discovered

University of Arizona Steward Observatory astronomers have discovered “cosmic ghost towns” that were halted in their development by cosmic forces billions of years ago. The “ghost towns,” named Sculptor A, B, and C, consist of three faint and ultra-faint galaxies about 6.5 million light-years from Earth. Despite their barren nature, these desolate regions of space may hold surprisingly important answers about the structure of our modern galaxy. …

The Debrief

'Cosmic Ghost Towns' Could Hold Clues the Mysteries of Galactic Structure - The Debrief

A team of astronomers has made a groundbreaking discovery that sheds light on the formation and evolution of small galaxies, specifically focusing on NGC 300. This galaxy, located about 6 million light-years from Earth and often overshadowed by its larger neighbors, has been the subject of new research that reveals its rich and complex history. Led by Catherine Fielder from the University of Arizona, the team used advanced imaging techniques to …

DECam and Gemini South discover three tiny 'stellar-ghost-town' galaxies

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