Hubble captures its largest image on nearby infrared

hubble capture image proche infrarouge

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NASA’s Hubble Space Telescope continues to capture rare observations of the universe. Recently, a technology known as “Drift and Shift” (DASH) has enabled the telescope to enlarge the camera’s view field and speed up its use. Researchers report that this will be the stimulus board for astronomical observations for the next decade.

Since its launch 30 years ago, the Hubble Space Telescope has led to a breakthrough in the study of evolution. Galaxies For the last 10 billion years in the universe “, To explain In a press release Lamia Moula is the lead author of the preprint study and a colleague at the Dunlop Institute for Astronomy and Astrophysics at the Faculty of Arts and Sciences at the University of Toronto.

The Hubble Space Telescope has photographed the largest infrared image ever taken to map the star formations of the universe and to learn how the oldest and most distant galaxies were born. This is the longest (red) wavelength ever observed by Hubble, allowing astronomers to see such galaxies (both old and distant) well. An international research team studied the image in a new high-resolution study called 3D-DASH.

This program expands Hubble’s tradition of large-scale imaging, so we can begin to unlock the mysteries of galaxies beyond our own. Moula continues: The legacy of the James Webb Space Telescope’s tradition of enabling the discovery of rare objects and targets. Reached destination Last December. Of course, the second is more made for sensitive images, to capture the finer details of a small area.

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3D-Drift and Shift: Faster and wider capture

Already, professional and amateur astronomers are exploring the sky Online interactive version 3D-DASH Image. Astronomers can explore large areas of the sky to find rare objects and identify the largest galaxies. Black holes Active and rare fused galaxies – such as Immortalized last February. ⁇ I’m curious about the largest mass of giant galaxies in the universe formed by the fusion of other galaxies. How did their structure develop and what changed their shape? Says Moula.

To obtain such images, the researchers used a new technology called “Drift and Shift” (DASH). This is effective for covering a large area with the infrared channel of the Space Telescope’s wide field camera 3. In standard Hubble observations, the guide gets stars at each new point (each acquisition takes about 10 minutes). The newly developed technology has a broader view, creating an image that is eight times larger than normal.

In detail, the camera captures several shots and then combines them into one. DASH captures images faster than standard technology: it takes eight photos instead of one in Hubble’s orbit, typically taking 2,000 hours to 250 hours.

Zoomed panels on a 3D-DASH depth map reveal a wealth of vivid objects that can be studied. © Moula et al. 2022

3D-DASH provides researchers with a comprehensive infrared survey of the entire COSMOS field, making it one of the richest data fields for extraterrestrial galactic studies. The technology covers an area six times the size of the Moon in the sky when viewed from Earth. This is the first time such a large and sharp image has been obtained in Near Infrared. Infrared space telescopes (including Nancy Grace Roman) that will be launched in the next decade are still something to enjoy until the next generation.

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Source: arXiv

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