A new stellar chemo-kinematic relation reveals the merger history of the milky way disk

Minchev, I.; Chiappini, C.; Martig, M.; Steinmetz, M.; De Jong, R. S.; Boeche, C.; Scannapieco, C.; Zwitter, T.; Wyse, R. F. G.; Binney, J. J.; Bland-Hawthorn, J.; Bienaymé, O.; Famaey, B.; Freeman, K. C.; Gibson, B. K.; Grebel, E. K.; Gilmore, G.; Helmi, A.; Kordopatis, G.; Lee, Y. S.; Munari, U.; Navarro, J. F.; Parker, Q. A.; Quillen, A. C.; Reid, W. A.; Siebert, A.; Siviero, A.; Seabroke, G.; Watson, F.; Williams, M.

doi:10.1088/2041-8205/781/1/l20

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A new stellar chemo-kinematic relation reveals the merger history of the milky way disk (2014)
Journal Article
Minchev, I., Chiappini, C., Martig, M., Steinmetz, M., De Jong, R. S., Boeche, C., Scannapieco, C., Zwitter, T., Wyse, R. F. G., Binney, J. J., Bland-Hawthorn, J., Bienaymé, O., Famaey, B., Freeman, K. C., Gibson, B. K., Grebel, E. K., Gilmore, G., Helmi, A., Kordopatis, G., Lee, Y. S., …Williams, M. (2014). A new stellar chemo-kinematic relation reveals the merger history of the milky way disk. Astrophysical journal. Letters, 781(1), L20. https://doi.org/10.1088/2041-8205/781/1/l20

The velocity dispersions of stars near the Sun are known to increase with stellar age, but age can be difficult to determine, so a proxy like the abundance of α elements (e.g., Mg) with respect to iron, [α/Fe], is used. Here we report an unexpected b... Read More about A new stellar chemo-kinematic relation reveals the merger history of the milky way disk.