Target: WASP-77Ab ================== WASP-77Ab is a transiting hot Jupiter orbiting the G8V star WASP-77A in a tidally locked configuration (Maxted et al. 2013). With an equilibrium temperature of :math:`T_{\mathrm{eq}} = 1715` K (Cortes-Zuleta et al. 2020), the planet possesses a strongly irradiated dayside hemisphere whose thermal emission can be measured both from the ground at HR and from space at LR. The system has been the subject of extensive atmospheric characterization campaigns, making it an ideal benchmark for validating retrieval frameworks. Key system parameters adopted throughout this tutorial are summarized in the table below. .. list-table:: System parameters for WASP-77Ab adopted in this tutorial. :header-rows: 1 :widths: 40 30 30 * - Parameter - Value - Reference * - **Planetary Parameters** - - * - Radius (:math:`R_J`) - 1.21 - Bonomo et al. (2017) * - Mass (:math:`M_J`) - 1.76 - Bonomo et al. (2017) * - Surface gravity (cm s\ :sup:`-2`) - 2979.6 - Derived * - T. equilibrium (K) - 1715 - Cortes-Zuleta et al. (2020) * - **Stellar Parameters** - - * - Radius (:math:`R_\odot`) - 0.955 - Bonomo et al. (2017) * - Mass (:math:`M_\odot`) - 1.002 - Bonomo et al. (2017) * - T. effective (K) - 5500 - Bonomo et al. (2017) * - :math:`v_{\mathrm{sys}}` (km/s) - 1.6845 - Maxted et al. (2013) * - **Orbital Parameters** - - * - :math:`T_0` (HJD) - 2458693.870688 - Kokori et al. (2023) * - Period (days) - 1.360028949 - Bonomo et al. (2017) * - :math:`K_p` (km/s) - 192.08 - Derived * - :math:`K_s` (km/s) - 0.322 - Derived