Chapter 6, Problem 41Q

(a)

To determine

The wavelength (in meters) of the emission, if the mission of the Submillimeter Wave Astronomy satellite (SWAS), launched in 1998, was to investigate clouds within which stars form and $557\text{ GHz}$ is one of the frequencies at which these clouds are observed $\left(1{\text{ GHz = 1 gigahertz = 10}}^9\text{ Hz}\right)$.

(b)

To determine

The necessity for using satellite for the mission of the Submillimeter Wave Astronomy satellite (SWAS) to investigate clouds within which stars form and $557\text{ GHz}$ is one of the frequencies at which these clouds are observed $\left(1{\text{ GHz = 1 gigahertz = 10}}^9\text{ Hz}\right)$.

(c)

To determine

The diameter of the primary mirror, if SWAS had an angular resolution of $4\text{ arcmin}$. The mission of the Submillimeter Wave Astronomy satellite (SWAS), was to investigate clouds within which stars forms and $557\text{ GHz}$ is one of the frequencies at which these clouds are observed $\left(1{\text{ GHz = 1 gigahertz = 10}}^9\text{ Hz}\right)$.