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| DOI | 10.1088/2041-8205/733/2/L43 | ||||
| Año | 2011 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
We use the clump giants of the disk as standard candles calibrated from Hipparcos parallaxes in order to map their distribution with two new near-infrared surveys of the Galactic plane: UKIDSS-GPS and VISTA Variables in the Via Lactea (VVV). We explore different selection cuts of clump giants. We conclude that there is an edge of the stellar disk of the Milky Way at R = 13.9 +/- 0.5 kpc along various lines of sight across the Galaxy. The effect of the warp is considered, taking fields at different longitudes and above and below the plane. We demonstrate that the edge of the stellar disk of the Milky Way can now be mapped in the near-infrared in order to test different models, and to establish our own place within the Galaxy.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | MINNITI-DEL BARCO, DANTE | Hombre |
Pontificia Universidad Católica de Chile - Chile
Vatican Observ - Vaticano ESO - Chile Centro de Excelencia en Astrofísica y Tecnologías Afines - Chile Vatican Observatory - Italia European Southern Observatory Santiago - Chile |
| 2 | Saito, Roberto K. | Hombre |
Pontificia Universidad Católica de Chile - Chile
|
| 3 | Alonso, J. | Hombre |
Pontificia Universidad Católica de Chile - Chile
|
| 4 | Lucas, Philip | Hombre |
Univ Hertfordshire - Reino Unido
University of Hertfordshire - Reino Unido |
| 5 | Hempel, Maren | Mujer |
Pontificia Universidad Católica de Chile - Chile
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| Fuente |
|---|
| CONICYT |
| NSF |
| NASA |
| STFC |
| Science and Technology Facilities Council |
| BASAL CATA Center for Astrophysics and Associated Technologies |
| FONDAP Center for Astrophysics |
| Agradecimiento |
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| We acknowledge support by the FONDAP Center for Astrophysics, BASAL CATA Center for Astrophysics and Associated Technologies, MILENIO Milky Way Millennium Nucleus from MIDEPLAN, FONDECYT from CONICYT, and the European Southern Observatory. R. S. acknowledges financial support from CONICYT through GEMINI Project No. 32080016. We gratefully acknowledge use of data from the VISTA telescope, data products from the Cambridge Astronomical Survey Unit, and the Two Micron All Sky Survey (2MASS), which is a joint project of the University of Massachusetts and IPAC/CALTECH, funded by NASA and NSF. |