Gaze into the heart of a ‘Phantom Galaxy’

m74 phantom galaxy webb
In Webb’s image, the heart of the is on full . It is a nuclear star cluster. NASA/ESA/CSA

There’s a phantom in the neighborhood, and the James Webb Telescope (JWST) paid it a visit. The European Space Agency (ESA) released a new image of the M74 Phantom Galaxy this week, its majestic spirals on full display. The image combines data from both Webb and the Hubble Space Telescope. Here’s why it’s so special. 

The M74 Phantom Galaxy is one of interest

Related: CEERS Webb mosaic reveals oldest galaxy

Located 32 million light-years from in the Pisces constellation, the M74 Phantom Galaxy is essentially face-to-face with our planet. This makes it a popular subject of study among astronomers investigating the origin and structure of galactic spirals. 

According to ESA, this galaxy is considered a “grand design spiral” because its arms are incredibly defined, with dust and gas filaments visible. There is also a brilliantly mesmerizing of its nuclear star cluster at the center of the galaxy, only visible due to the lack of gas in that region.

JWST’s observations complement others’ of the M74 Phantom Galaxy

m74 phantom galaxy hubble webb
“M74 shines at its brightest in this combined optical/mid-infrared image, featuring data from both the NASA/ESA Hubble Space Telescope and the NASA/ESA/CSA James Webb Space Telescope. The red mark dust threaded through the arms of the galaxy, lighter oranges being areas of hotter dust. The young stars throughout the arms and the nuclear core are picked out in blue. Heavier, older stars towards the galaxy’s center are shown in cyan and , projecting a spooky glow from the core of the Phantom Galaxy. Bubbles of star formation are also visible in pink across the arms. Such a variety of galactic features is rare to see in a single image. Scientists combine data from telescopes operating across the electromagnetic spectrum to truly understand astronomical objects. In this way, data from Hubble and Webb complement each other to provide a comprehensive view of the spectacular M74 galaxy.” NASA/ESA Hubble Space Telescope and the NASA/ESA/CSA James Webb Space Telescope

Make no mistake, JWST is far from the first telescope to observe the Phantom Galaxy. In fact, it joins the Hubble Space Telescope and ground observatories in studying neighboring star-forming galaxies as part of the Physics at High Angular resolution in Nearby GalaxieS (PHANGS) collaboration. 

Hubble has observed the M74 Phantom Galaxy before, focusing on the notably bright areas of star formation, known as HII regions. The telescope’s strength is in the ultraviolet and visible light wavelengths, while JWST specializes in the infrared spectrum. These , combined with ground radio telescopes, allow researchers a much deeper understanding of the galaxy than if they relied on just a single instrument.

“The addition of crystal-clear Webb observations at longer wavelengths will allow astronomers to pinpoint star-forming regions in the galaxies,” ESA writes, as well as “accurately measure the masses and ages of star clusters, and gain insights into the nature of the small grains of dust drifting in interstellar space.”

The post Gaze into the heart of a ‘Phantom Galaxy’ appeared first on Popular Photography.

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