Final answer:
The ability of a planet to support liquid water depends on its radiation budget, which is determined by several factors such as the star's luminosity and the planet's orbital radius and albedo. The greenhouse effect and surface temperature also play a role in determining whether a planet can support liquid water. However, based on the given information, we cannot determine whether the planet in question can support liquid water.
Step-by-step explanation:
The ability of a planet to support liquid water depends on its radiation budget, which is determined by several factors. The star's luminosity and the planet's orbital radius and albedo all contribute to how much starlight energy the planet receives. The planet's greenhouse effect also plays a role in retaining heat. In order to determine whether a planet can support liquid water, we need to consider the surface temperature and pressure, as well as the energy absorbed and transmitted.
In this case, the properties of the system are as follows: Star: Koprulu with a mass of 2.35 M and a luminosity of 19.9 L. The planet, Alur, has an orbital radius of 4.63 AU. The surface pressure is 4.50 atm and the albedo is 0.67. The energy absorbed is 42.5%, while the energy transmitted is 57.5%.
In order to determine whether the planet can support liquid water, we need to consider the greenhouse effect and surface temperature. Since the greenhouse effect is not specified, we cannot make a definitive conclusion about whether the planet can support liquid water. However, the surface temperature can give us some indication. With an effective temperature of к, which is not provided, we cannot determine the surface temperature. Therefore, we cannot determine whether the planet can support liquid water based on the given information.