Astronomers Detect the Faint Glow of Stars in Between Galaxies - Universe Today
A team of astronomers developed a new technique to observe IGL and presented their results in a paper. It’s titled “
The new paper is a case study into the HSC and how it can be used for “… the analysis of extended faint structures within groups of galaxies,” as the authors explain. The team examined images from the GAMA survey. GAMA is a wide-field survey that studies galaxy formation and evolution. Several ground-based and space-based facilities contributed to GAMA, and the team combined data from GAMA and the HSC in their study.
This team of astronomers developed a method to remove the light from the galaxies and leave the light from the stars. Astronomers call this light intra-group light or intracluster light Removing unwanted light is a common theme in astronomy. But unlike other techniques, this one is modular and can be “transported” to different applications and still be effective.
Martínez-Lombilla and her colleagues found that the inter-group stars had different properties than the bulk of the stars in the nearby galaxy groups. They’re both younger and less metal-rich. “We think these individual stars were at some points stripped from their home galaxies, and now they float freely, following the gravity of the group,” said Dr. Martínez-Lombilla. “The stripping, called tidal stripping, is caused by the passage of massive satellite galaxies – similar to the Milky Way – that pull stars in their wake.”
日本 最新ニュース, 日本 見出し
Similar News:他のニュース ソースから収集した、これに似たニュース記事を読むこともできます。
Nebulas glow with forming stars in stunning new imageThe pair of stellar nurseries are located 22,000 and 9,000 light-years away.
続きを読む »
I Got The 'Boyfriend' Bob & It's Not For Faint Of Heart'Professionally known as the 'box' bob, the boyfriend bob is a sharp, blunt-cut bob, sitting on (or just below) jaw length.' -Neil Moodie, editorial hairstylist
続きを読む »
Astronomers caught a black hole slurping up a star like spaghettiWhen a star ventures a little too close to a black hole, the intense tidal forces suck into it like a giant noodle of star stuff in a cosmic (and much more chaotic) reenactment of that iconic scene in “Lady and the Tramp.” The black hole’s extreme gravitational pull shreds the star into thin strands of material—a process delightfully called “spaghettification.” When these noodle-like strips get sucked into the black hole, they release a powerful bright flare of energy. In September of 2019, the light from such a doomed encounter reached Earth.
続きを読む »
Mauna loa spewed lava up to 200 ft in sky, 'massive glow' seen from calderaThree of the volcano's vents have erupted and spewed lava down the Northeast Rift Zone.
続きを読む »
Astronomers Annoyed at Ludicrously Bright SpaceX-Launched SatelliteOne of the world's preeminent astronomy organizations is decrying a newly-released satellite that has become one of the brightest objects in the sky.
続きを読む »
Last Call: This Hydrating Moisturizer Is So Effective, Shoppers Call It The ‘Fountain Of Youth’—Grab It For 30% OffThis hydrating moisturizer is still 30% off ~ get that natural glow now 🏃♀️
続きを読む »