How many stars are formed in the Milky Way per year?
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| Papers (6) | Insight |
|---|---|
| We also show that the surface star formation rate profile of the Milky Way correlates well with the molecular gas surface density profile. | |
| We infer, for the RR Lyrae stars in the bulge spheroid, an extremely ancient age of $13.41 \pm 0.54$ Gyr and conclude they were among the first stars to form in what is now the Milky Way galaxy. | |
| Consistently, the statistical analysis of positions and ages of clusters in the Milky Way disk strongly suggests that a correlation between the duration of star formation in a region and its size does exist. | |
| The star-formation efficiency is in the range 1-10% per free-fall time, consistent with the notion that the pressure balance that sets the local star-formation law in the Milky Way may well be universal out to the highest star-formation intensities. | |
| We estimate that 0.7% of all stars in Milky Way type galaxies to host a terrestrial planet within their habitable zone, consistent with the value derived from Kepler observations. | |
| We conclude that a relatively short halo formation timescale (0.8 Gyr), in agreement with recent estimates for the age differences among Galactic globular clusters, coupled with an inside-out formation of the Galactic disk, where the innermost regions are assumed to have formed much faster than the outermost ones, represents, at the moment, the most likely explanation for the formation of the Milky Way. |
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