First evidence for a spatially resolved disk structure around the Herbig Ae star R CrA
| dc.creator | Correia, S. | |
| dc.creator | Koehler, R. | |
| dc.creator | Meeus, G. | |
| dc.creator | Zinnecker, H. | |
| dc.date | 2005-07-04 | |
| dc.date.accessioned | 2026-07-07T02:18:09Z | |
| dc.date.available | 2026-07-07T02:18:09Z | |
| dc.description | We present mid-infrared interferometric observations of the Herbig Ae star R CrA obtained with MIDI at the VLTI using several projected baselines in the UT2-UT3 configuration. The observations show resolved circumstellar emission in the wavelength range 8-13 micron on a ~6 AU scale with a non-symmetric intensity distribution, providing support for an inclined disk geometry. Visibilities are best fitted using a uniform ring model with outer radius in the range 6-10 AU, in the wavelength range 8-13 micron. The inclination of the ring with respect to the plane of the sky is found to be ~45 deg., consistent with the 40 deg. suggested from near-infrared imaging polarimetry (Clark et al. 2000, MNRAS, 319, 337). | |
| dc.description | 5 pages, 5 figure, to appear in the proceedings of the ESO Workshop "The Power of Optical/IR Interferometry: Recent Scientific Results and 2nd Generation VLTI Instrumentation", held in Garching (Germany), April 4-8, 2005 | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0507064 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0507064 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/9383 | |
| dc.subject | Astrophysics | |
| dc.title | First evidence for a spatially resolved disk structure around the Herbig Ae star R CrA | |
| dc.type | text |