{"id":79827,"url":"https://www.kudos365.com/news/79827-the-magnetic-field-of-the-whirlpool-galaxy","short_url":"https://www.kudos365.com/news/79827","headline":"The Magnetic Field of the Whirlpool Galaxy","content":"\u003cp\u003eNASA Astronomy Picture of the Day:\u003c/p\u003e\n\n\u003cp\u003eDo magnetic fields always flow along spiral arms?  Our face-on view of the Whirlpool Galaxy (M51) allows a spectacularly clear view of the spiral wave pattern in a disk-shaped galaxy.  When observed with a radio telescope, the magnetic field appears to trace the arms' curvature.  However, with NASA’s flying Stratospheric Observatory for Infrared Astronomy (SOFIA) observatory, the magnetic field at the outer edge of M51's disk appears to weave across the arms instead.  Magnetic fields are inferred by grains of dust aligning in one direction and acting like polaroid glasses on infrared light.  In the featured image, the field orientations determined from this polarized light are algorithmically connected, creating streamlines.  Possibly the gravitational tug of the companion galaxy, at the top of the frame, on the dusty gas of the reddish star-forming regions, visible in the Hubble Space Telescope image, enhances turbulence -- stirring the dust and lines to produce the unexpected field pattern of the outer arms.\u003c/p\u003e\n\n","content_plain":"NASA Astronomy Picture of the Day:\n\nDo magnetic fields always flow along spiral arms?  Our face-on view of the Whirlpool Galaxy (M51) allows a spectacularly clear view of the spiral wave pattern in a disk-shaped galaxy.  When observed with a radio telescope, the magnetic field appears to trace the arms' curvature.  However, with NASA’s flying Stratospheric Observatory for Infrared Astronomy (SOFIA) observatory, the magnetic field at the outer edge of M51's disk appears to weave across the arms instead.  Magnetic fields are inferred by grains of dust aligning in one direction and acting like polaroid glasses on infrared light.  In the featured image, the field orientations determined from this polarized light are algorithmically connected, creating streamlines.  Possibly the gravitational tug of the companion galaxy, at the top of the frame, on the dusty gas of the reddish star-forming regions, visible in the Hubble Space Telescope image, enhances turbulence -- stirring the dust and lines to produce the unexpected field pattern of the outer arms.\n\n","published_at":"2021-01-20T12:16:03-08:00","updated_at":"2026-07-07T18:04:22-07:00","author":{"type":"Person","name":"Specola-","url":"https://www.kudos365.com/profiles/298285-specola"},"description":"Stay up-to-date with Specola on Kudos365. View their photo published Jan/20/2021 on Science - Tech - Astronomy. Browse your favorite topics and share your expertise, too.","type":"photo","image":"https://k365pi.imgix.net/c3e4dd09-db73-42f8-baec-a60e66bb9da9.jpg?auto=compress,format\u0026fit=max\u0026w=1200\u0026h=1200\u0026q=48","likes_count":6,"comments_count":1,"categories":[{"name":"Science - Tech - Astronomy","url":"https://www.kudos365.com/categories/986-science-tech-astronomy"}],"schema":{"@context":"https://schema.org","@type":"CreativeWork","url":"https://www.kudos365.com/news/79827-the-magnetic-field-of-the-whirlpool-galaxy","headline":"The Magnetic Field of the Whirlpool Galaxy","image":"https://k365pi.imgix.net/c3e4dd09-db73-42f8-baec-a60e66bb9da9.jpg?auto=compress,format\u0026fit=max\u0026w=1200\u0026h=1200\u0026q=48","author":{"@type":"Person","name":"Specola-","url":"https://www.kudos365.com/profiles/298285-specola"},"datePublished":"2021-01-20T12:16:03-08:00","interactionStatistic":[{"@type":"InteractionCounter","interactionType":"https://schema.org/LikeAction","userInteractionCount":6}],"subjectOf":[{"@type":"Thing","name":"Science - Tech - Astronomy","url":"https://www.kudos365.com/categories/986-science-tech-astronomy"}]}}