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| DOI | 10.1017/S1743921314000726 | ||||
| Año | 2014 | ||||
| Tipo | proceedings paper |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
A fast moving infrared excess source (G2) which is widely interpreted as a core-less gas and dust cloud approaches Sagittarius A* (Sgr A*) on a presumably elliptical orbit. VLT K-s-band and Keck K'-band data result in clear continuum identifications and proper motions of this similar to 19(m) Dusty S-cluster Object (DSO). In 2002-2007 it is confused with the star S63, but free of confusion again since 2007. Its near-infrared (NIR) colors and a comparison to other sources in the field speak in favor of the DSO being an IR excess star with photospheric continuum emission at 2 microns than a core-less gas and dust cloud. We also find very compact L'-band emission (<0.1 '') contrasted by the reported extended (0.03 '' up to similar to 2 '' for the tail) Br gamma emission. The presence of a star will change the expected accretion phenomena, since a stellar Roche lobe may retain a fraction of the material during and after the peri-bothron passage.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Eckart, A. | Hombre |
Univ Cologne - Alemania
Max Planck Inst Radioastron - Alemania University of Cologne - Alemania Max Planck Institute for Radio Astronomy - Alemania Universität zu Köln - Alemania |
| 2 | Horrobin, M. | Hombre |
Univ Cologne - Alemania
University of Cologne - Alemania Universität zu Köln - Alemania |
| 3 | Britzen, Silke | Mujer |
Max Planck Inst Radioastron - Alemania
Max Planck Institute for Radio Astronomy - Alemania |
| 4 | Zamaninasab, M. | - |
Max Planck Inst Radioastron - Alemania
Max Planck Institute for Radio Astronomy - Alemania |
| 5 | Muzic, K. | Mujer |
ESO - Chile
European Southern Observatory Santiago - Chile |
| 6 | Sabha, N. | - |
Univ Cologne - Alemania
Max Planck Inst Radioastron - Alemania University of Cologne - Alemania Max Planck Institute for Radio Astronomy - Alemania Universität zu Köln - Alemania |
| 7 | Shahzamanian, B. | Mujer |
Univ Cologne - Alemania
Max Planck Inst Radioastron - Alemania University of Cologne - Alemania Max Planck Institute for Radio Astronomy - Alemania Universität zu Köln - Alemania |
| 8 | Yazici, S. | Hombre |
Univ Cologne - Alemania
University of Cologne - Alemania Universität zu Köln - Alemania |
| 9 | Moser, L. | Mujer |
Univ Cologne - Alemania
University of Cologne - Alemania Universität zu Köln - Alemania |
| 10 | Garcia-Marin, Macarena | Mujer |
Univ Cologne - Alemania
University of Cologne - Alemania Universität zu Köln - Alemania |
| 11 | Valencia-S, M. | - |
Univ Cologne - Alemania
University of Cologne - Alemania Universität zu Köln - Alemania |
| 12 | Borkar, A. | - |
Univ Cologne - Alemania
Max Planck Inst Radioastron - Alemania University of Cologne - Alemania Max Planck Institute for Radio Astronomy - Alemania Universität zu Köln - Alemania |
| 13 | Bursa, M. | - |
Acad Sci - República Checa
Astronomical Institute, Academy of Sciences of the Czech Republic v.v.i. - República Checa |
| 14 | Karssen, G. | - |
Univ Cologne - Alemania
University of Cologne - Alemania Universität zu Köln - Alemania |
| 15 | Karas, V. | Hombre |
Acad Sci - República Checa
Astronomical Institute, Academy of Sciences of the Czech Republic v.v.i. - República Checa |
| 16 | Zajacek, Michal | Hombre |
Acad Sci - República Checa
Fac Math & Phys - República Checa Astronomical Institute, Academy of Sciences of the Czech Republic v.v.i. - República Checa Charles University - República Checa |
| 17 | BRONFMAN-AGUILO, MIGUEL LEONARDO | Hombre |
Universidad de Chile - Chile
|
| 18 | FINGER-CAMUS, RICARDO ALBERTO | Hombre |
Universidad de Chile - Chile
|
| 19 | Jalali, B. | - |
Univ Cologne - Alemania
University of Cologne - Alemania Universität zu Köln - Alemania |
| 20 | Vitale, M. | - |
Univ Cologne - Alemania
Max Planck Inst Radioastron - Alemania University of Cologne - Alemania Max Planck Institute for Radio Astronomy - Alemania Universität zu Köln - Alemania |
| 21 | Rauch, C. | - |
Max Planck Inst Radioastron - Alemania
Max Planck Institute for Radio Astronomy - Alemania |
| 22 | Kunneriath, Devaky | - |
Acad Sci - República Checa
Astronomical Institute, Academy of Sciences of the Czech Republic v.v.i. - República Checa |
| 23 | Moultaka, J. | - |
Univ Toulouse - Francia
UPS OMP - Francia IRAP - Francia CNRS - Francia Université de Toulouse - Francia Institut de Recherche en Astrophysique et Planétologie (IRAP) - Francia Observatoire Midi-Pyrénées - Francia |
| 24 | Rau, C. | Hombre |
Univ Cologne - Alemania
University of Cologne - Alemania Universität zu Köln - Alemania |
| 25 | Rashed, Y. E. | - |
Univ Cologne - Alemania
University of Cologne - Alemania Universität zu Köln - Alemania |
| 26 | Markakis, K. | - |
Univ Cologne - Alemania
Max Planck Inst Radioastron - Alemania University of Cologne - Alemania Max Planck Institute for Radio Astronomy - Alemania Universität zu Köln - Alemania |
| 27 | Zensus, J. Anton | - |
Univ Cologne - Alemania
Max Planck Inst Radioastron - Alemania University of Cologne - Alemania Max Planck Institute for Radio Astronomy - Alemania Universität zu Köln - Alemania |
| 28 | Sjouwerman, LO | - | |
| 29 | Lang, CC | - | |
| 30 | Ott, J | - |