Reeve, DC;
Howarth, ID;
(2016)
Limb-darkening coefficients from line-blanketed non-LTE hot-star model atmospheres.
Monthly Notices of the Royal Astronomical Society
, 456
(2)
pp. 1294-1298.
10.1093/mnras/stv2631.
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Abstract
We present grids of limb-darkening coefficients computed from non-local thermodynamic equilibrium (non-LTE), line-blanketed TLUSTY model atmospheres, covering effective-temperature and surface-gravity ranges of 15–55 kK and 4.75 dex (cgs) down to the effective Eddington limit, at 2×, 1×, 0.5× (Large Magellanic Cloud), 0.2× (Small Magellanic Cloud), and 0.1× solar. Results are given for the Bessell UBVRICJKHL, Sloan ugriz, Strömgren ubvy, WFCAM ZYJHK, Hipparcos, Kepler, and Tycho passbands, in each case characterized by several different limb-darkening ‘laws’. We examine the sensitivity of limb darkening to temperature, gravity, metallicity, microturbulent velocity, and wavelength, and make a comparison with LTE models. The dependence on metallicity is very weak, but limb darkening is a moderately strong function of log g in this temperature regime.
| Type: | Article |
|---|---|
| Title: | Limb-darkening coefficients from line-blanketed non-LTE hot-star model atmospheres |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1093/mnras/stv2631 |
| Publisher version: | http://doi.org/10.1093/mnras/stv2631 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1491788 |
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