Limb-darkening Coefficients for the Filter CBB

DOI: 
10.3847/2515-5172/ac8c3f
Publication date: 
08/08/2022
Main author: 
Claret, A.
IAA authors: 
Claret, A.
Authors: 
Claret, A.;Mullen, E.;Gary, B. L.
Journal: 
Research Notes of the American Astronomical Society
Refereed: 
No
Publication type: 
Article
Volume: 
6
Pages: 
169
Abstract: 
The CBB filter is particularly appropriate for exoplanet differential photometry using smaller (≤1.0 m) telescopes for two primary reasons. First, the CBB filter provides far greater throughput than standard filters (i.e., 92% throughput for CBB compared to 19% for V), which results in significantly greater measurement precision. Second, the CBB significantly reduces the size of air-mass curvature systematic error (8 mmag/airmass for a CBB filter compared to 59 mmag/airmass for a clear filter). In this Research Note we provide the theoretical calculations of the limb-darkening coefficients (LDCs) for the filter CBB adopting the two most used bi-parametric laws: quadratic and power-2 laws. The calculations of LDCs were carried out adopting the ATLAS stellar atmosphere models, plane-parallel version. These grids cover 19 metallicities ranging from 10<SUP>-5</SUP> up to 10 <SUP>+1</SUP> solar abundances, 0 ≤ log g ≤ 5.0 and 3500 K ≤ T <SUB>eff</SUB> ≤ 50,000 K (9586 models).
Database: 
ADS
URL: 
https://ui.adsabs.harvard.edu/#abs/2022RNAAS...6..169C/abstract
ADS Bibcode: 
2022RNAAS...6..169C
Keywords: 
Stellar atmospheres;1584