by Ann » Fri Mar 04, 2016 6:01 pm
Okay, I finally checked out the colors of NGC 134. It is a relatively red galaxy, both when it comes to B-V and U-B, as expected. It is, however, considerably bluer than the Andromeda Galaxy. And fascinatingly, while M31 is more than a magnitude fainter in the far infrared than in blue light in spite of its nearly edge-on orientation, testifying to its low levels of dust, NGC 134 is one and a half magnitude brighter in the far infrared than in blue light. Indeed, NGC 134 is a quite dusty galaxy, probably ripe for many more rounds of star formation - unless those choppy waves of dust are too hot and turbulent to settle down into the cool dark molecular clouds that are (usually) necessary for star formation.
Ann
Okay, I finally checked out the colors of NGC 134. It is a relatively red galaxy, both when it comes to B-V and U-B, as expected. It is, however, considerably bluer than the Andromeda Galaxy. And fascinatingly, while M31 is more than a magnitude fainter in the far infrared than in blue light in spite of its nearly edge-on orientation, testifying to its low levels of dust, NGC 134 is one and a half magnitude [i]brighter[/i] in the far infrared than in blue light. Indeed, NGC 134 is a quite dusty galaxy, probably ripe for many more rounds of star formation - unless those choppy waves of dust are too hot and turbulent to settle down into the cool dark molecular clouds that are (usually) necessary for star formation.
Ann