5 citations · 6 across the 2 of their papers we have counts for
6 papers
Present and Future Astrometric Study of Halo Substructure
Steven R. Majewski, Allyson A. Polak, David R. Law +1
We focus on how astrometric surveys might be exploited for the study of Galactic halo substructure originating from the disruption of satellite systems. The Sagittarius (Sgr) dwarf…
The Galactic Anticenter Stellar Stream
Helio J. Rocha-Pinto, Steven R. Majewski, M. F. Skrutskie +1
The recently discovered, ring-like structure just outside the Galactic disk in Monoceros is detected and traced among 2MASS M giant stars. We have developed a method to recover the…
Chemical enrichment and star formation in the Milky Way disk; II. Star formation history
H. J. Rocha-Pinto, John Scalo, W. J. Maciel +1
A chromospheric age distribution of 552 late-type dwarfs is transformed into a star formation history by the application of scale height corrections, stellar evolutionary correctio…
Chemical enrichment and star formation in the Milky Way disk; I. Sample description and chromospheric age-metallicity relation
H. J. Rocha-Pinto, W. J. Maciel, John Scalo +1
The age-metallicity relation of the solar neighbourhood is studied using a sample of 552 late-type dwarfs. This sample was built from the intersection of photometric catalogues wit…
Consistency of the metallicity distributions of nearby F, G and K dwarfs
H. J. Rocha-Pinto, W. J. Maciel
The consistency of the metallicity distributions of F, G and K dwarfs is studied. We present a new metallicity distribution for K dwarfs using metallicities determined from uvby ph…
The G dwarf Metallicity Distribution and the Problem of Stellar Lifetimes Lower than the Disk Age
Helio J. Rocha-Pinto, Walter J. Maciel
We examine the possibility of the inclusion of objects having lifetimes lower than the disk age in the database of recent determinations of the G dwarf metallicity distribution for…