An Approach Detecting the Event Horizon of SgrA*
| dc.creator | Miyoshi, M. | |
| dc.date | 2004-12-13 | |
| dc.date.accessioned | 2026-07-07T02:16:13Z | |
| dc.date.available | 2026-07-07T02:16:13Z | |
| dc.description | Imaging the vicinity of black hole is one of the ultimate goals of VLBI astronomy. The closest massive black hole, SgrA*, located at Galactic center is the leading candidate for such observations. Combined with recent VLBI recording technique and sub-mm radio engineering, we now have the sufficient sensitivity for the observations. We here show performance simulations of sub-mm VLBI arrays for imaging SgrA*. An excellent image is obtained from a sub-mm VLBI array in the Southern hemisphere like the configuration of VLBA. We also note that even with a small array, we can estimate the shadow size and then the mass of black hole from visibility analysis. Now, if only constructing a sub-mm VLBI array in Southern hemisphere, we can unveil the black hole environments of SgrA*. | |
| dc.description | 4 pages, 5 figures. Proceedings of the 7th European VLBI Network Symposium held in Toledo, Spain on October 12-15, 2004. Editors: R. Bachiller, F. Colomer, J.-F. Desmurs, P. de Vicente (Observatorio Astronomico Nacional), p. 11-14. Needs evn2004.cls | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0412289 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0412289 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/8708 | |
| dc.subject | Astrophysics | |
| dc.title | An Approach Detecting the Event Horizon of SgrA* | |
| dc.type | text |