If a runaway star is massive and fast enough it can form a stellar bowshock. But what if the star moves into our direction or away from us? It has to look like an umbrella, seen from the top or the bottom. This was the thought of EcceruElme, one of the moderators of the Milky… Continue reading Small tiny “umbrella” bow-shocks
Volunteerism in Zooniverse does have the same structure as other volunteerism if it is about classifications. Usual a lot of volunteers do classify a small set of subjects. They drop by and try the project until they are bored. This can be one subject, ten subjects or one hundred subjects. Less common are engaged volunteers… Continue reading MWP classification stats and volunteers behavior
I searched for close bowshocks after some of our volunteers found a close bowshock, which belongs to Alpha Crucis. I found 3 new bowshock candidates and 3 bowshock candidates that are already in a bowshock catalog (Kobulnicky+, 2016). Alpha Crucis is the only bowshock that is in the Milky Way Project (subject link). Here the… Continue reading Close Bowshocks
In the past of the Galaxy Zoo, volunteers pointed out two galaxy mergers that have a surprisingly similar shape with penguins: First dailyzoo-post Second dailyzoo-post I think the similar pattern is no coincidence: There are two galaxies merging with each other. One galaxy is an elliptical galaxy without triggered star-formation and another galaxy with mainly… Continue reading Penguin Galaxies
In the “about” page of the Milky Way Project you can read in the describtion of bubbles: Bubbles are interesting places — they mark the locations where radiation from newly formed massive stars is impacting on the surrounding cloud material. But how can you find those stars if one bubble has sometimes hundreds or thousands… Continue reading How to find massive stars…with bubbles!
A reflection nebula is a cloud of interstellar dust that scatters the light of one star or many stars. The light of a reflection nebula does have similar spectra like the light it scatters. Because the stars are often blue, many reflection nebulae are blue and they are different from emission nebula, which have different… Continue reading Reflection Nebulae, Bubbles and B-Type Stars
The Mid-Infrared is good to study hot gas and dust in close galaxies. The Spitzer Space Telescope did already study the gas in close galaxies, like the spiral Andromeda galaxy or the dwarf galaxies Large Magellanic Cloud (LMC) and Small Magellanic Cloud (SMC). Beside these very close galaxies, spitzer did image more distant galaxies, as… Continue reading Galaxies in the Mid-Infrared