Published On: Mon, Aug 17th, 2015

Astronomers Uncover a Ghostly Remnants of Galaxy Interactions

Pseudo-color images from HSC regard that contains M81, M82, and NGC 3077. Diameter of a FOV is 1.5 degrees

Using a Subaru Telescope, a organisation of astronomers exhibit a resounding ruins of universe interactions in a circuitously universe group.

Astronomers regulating a Subaru Telescope’s Hyper Suprime-Cam prime-focus camera recently celebrated a circuitously vast turn universe M81, together with a dual brightest neighbors, M82 and NGC 3077. The formula of their observations are deep, super wide-field images of a galaxies and their populations of immature stars. As partial of a Galactic Archaeology study, a organisation detected that a spatial placement of a immature stars around these galaxies follows really closely that of their placement of neutral hydrogen. “This is a initial try over a Local Group of galaxies to denote a hierarchical universe public routine on galactic scales,” pronounced organisation member Dr. Sakurako Okamoto (Shanghai Astronomical Observatory).

Deep and ultra far-reaching margin of perspective picture from Hyper Suprime-Cam mounted on a Subaru Telescope including a vast turn universe M81, M82, dwarf universe Holmberg IX and NGC 3077. The investigate team’s research suggested a snippet of a past interactions with a adjacent galaxies. It is sparkling to see a justification of a hierarchical universe public routine during this stretch over a Local Group of galaxies.

Publication: Sakurako Okamoto, et al. “A Hyper Suprime-Cam View of a Interacting Galaxies of a M81 Group,” 2015, ApJ, 809, L1; doi:10.1088/2041-8205/809/1/L1

PDF Copy of a Study: A Hyper Suprime-Cam View of a Interacting Galaxies of a M81 Group

Source: National Astronomical Observatory of Japan

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