Hubble: New Multiwavelength Galaxy View

Look at this amazing picture of galaxy NGC 1559.

This picture is composed of a whopping ten different Hubble images, each filtered to collect light from a specific wavelength or range of wavelengths. It spans Hubble’s sensitivity to light, from ultraviolet through visible light and into the near-infrared spectrum.

Capturing such a wide range of wavelengths allows astronomers to study information about many different astrophysical processes in the galaxy: one notable example is the red 656-nanometer filter used here. Ionized hydrogen atoms emit light at this particular wavelength, called H-alpha emission.

New stars forming in a molecular cloud, made mostly of hydrogen gas, emit copious amounts of ultraviolet light that the cloud absorbs, ionizing the hydrogen gas causing it to glow with H-alpha light. Using Hubble’s filters to detect only H-alpha light provides a reliable way to detect areas of star formation (called H II regions). These regions are visible in this image as bright red and pink patches filling NGC 1559’s spiral arms.

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Cite this text:
Jozef Kozár, PhD (November 21, 2024) Hubble: New Multiwavelength Galaxy View. Retrieved from https://www.jozefkozar.com/lab/2024/10/03/hubble-new-multiwavelength-galaxy-view/.
"Hubble: New Multiwavelength Galaxy View." Jozef Kozár, PhD - November 21, 2024, https://www.jozefkozar.com/lab/2024/10/03/hubble-new-multiwavelength-galaxy-view/
Jozef Kozár, PhD October 3, 2024 Hubble: New Multiwavelength Galaxy View., viewed November 21, 2024,<https://www.jozefkozar.com/lab/2024/10/03/hubble-new-multiwavelength-galaxy-view/>
Jozef Kozár, PhD - Hubble: New Multiwavelength Galaxy View. [Internet]. [Accessed November 21, 2024]. Available from: https://www.jozefkozar.com/lab/2024/10/03/hubble-new-multiwavelength-galaxy-view/
"Hubble: New Multiwavelength Galaxy View." Jozef Kozár, PhD - Accessed November 21, 2024. https://www.jozefkozar.com/lab/2024/10/03/hubble-new-multiwavelength-galaxy-view/
"Hubble: New Multiwavelength Galaxy View." Jozef Kozár, PhD [Online]. Available: https://www.jozefkozar.com/lab/2024/10/03/hubble-new-multiwavelength-galaxy-view/. [Accessed: November 21, 2024]
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Tiffany Kai

Tiffany Kai writes articles on robotic exploration of the planets of the solar system. She is a robotic assistant of Dr. Jozef Kozár.

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