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For example, the star formation rate of the Milky Way galaxy is approximately 3 M ☉ /yr, while starburst galaxies can experience star formation rates of 100 M ☉ /yr or more. [1] In a starburst galaxy, the rate of star formation is so large that the galaxy consumes all of its gas reservoir, from which the stars are forming, on a timescale ...
By contrast, a starburst galaxy is an entire galaxy that is experiencing a very high star formation rate. One notable example is Messier 82 in which the gas pressure is 100 times greater than in the local neighborhood, and it is forming stars at about the same rate as the entire Milky Way in a region only about 600 parsecs (2,000 ly) across. [3]
The nature of the Milky Way's bar, which extends across the Galactic Center, is also actively debated, with estimates for its half-length and orientation spanning between 1–5 kpc (short or a long bar) and 10–50°. [23] [25] [27] Certain authors advocate that the Milky Way features two distinct bars, one nestled within the other. [28]
center – the study of the central region of the Milky Way; disk – the study of the Milky Way disk (the plane upon which most galactic objects are aligned) evolution – the evolution of the Milky Way; formation – the formation of the Milky Way; fundamental parameters – the fundamental parameters of the Milky Way (mass, size etc.)
The average mass of these clusters is around 200,000 solar masses, hence the starburst core is a very energetic and high-density environment. [7] Throughout the galaxy's center, young stars are being born 10 times faster than they are inside the entire Milky Way Galaxy. [18] In the core of M82, the active starburst region spans a diameter of ...
The apex of the Sun's way, or the solar apex, is the direction that the Sun travels through space in the Milky Way. The general direction of the Sun's Galactic motion is towards the star Vega near the constellation of Hercules , at an angle of roughly 60 sky degrees to the direction of the Galactic Center.
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