Table 2
Photospheric parameters from fitting the continuum visibility data, using the uvfit task in the Miriad software, of Mira A and B in the continuum window at 229.6 GHz of ALMA Band 6.
| Object | S 229.6 GHz | θ maj | θ min | PA | T b |
| (mJy) | (mas) | (mas) | (°) | (K) | |
|
|
|||||
| Mira A Uniform Disk Model + Mira B Gaussian Model | |||||
|
|
|||||
| Mira A (Disk) | 148.0 ± 0.5 | 45.96 ± 0.03 | 41.25 ± 0.03 | −36.4 ± 0.3 | 2611 ± 51 |
| Mira B (Gaussian) | 11.4 ± 0.5 | 25.70 ± 0.26 | 21.38 ± 0.30 | 65.7 ± 2.7 | − |
|
|
|||||
| Mira A Gaussian Model + Mira B Gaussian Model | |||||
|
|
|||||
| Mira A (Gaussian) | 151.7 ± 0.5 | 30.50 ± 0.02 | 26.93 ± 0.02 | −45.6 ± 0.3 | − |
| Mira B (Gaussian) | 11.1 ± 0.5 | 25.73 ± 0.28 | 22.14 ± 0.34 | 78.2 ± 2.9 | − |
Notes. The columns are (from left to right): the object being fitted and the type of model (uniform disk or Gaussian), total flux at 229.6 GHz (S229.6 GHz, mJy), major axis (θmaj, mas), minor axis (θmin, mas), the position angle (PA, degrees) of each elliptical component, and the brightness temperature (Tb, K) of the uniform disk model for Mira A. The quoted uncertainties are all the formal quantities resulting from model fitting. The real uncertainty of the flux is dominated by the absolute flux calibration, which is estimated to be of order 20%. The uncertainty of the brightness temperature including the contribution from the absolute flux calibration is about 565 K. The total integrated fluxes of Mira A and B in the 229.6-GHz continuum map are 149.70 ± 0.04 mJy and 11.19 ± 0.04 mJy, respectively.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.