Huge Fluxes of X-Rays Are Detected from the Direction of Cygnus

question 170

Multiple Choice

Huge fluxes of X-rays are detected from the direction of Cygnus X-1 with a spectrum that looks similar to that of a blackbody with a peak wavelength of 1.45 nm (1 nm = 10^-9 m) . These X-rays are probably emitted by matter being heated as it falls into a black hole. What is the temperature of this gas?

• A) 2 * 10⁶ K
• B) 4205 K
• C) 2 * 10^-2 K
• D) 2* 10⁴ K

---

Definitions:

Handles Complaints

The process or person responsible for addressing and resolving grievances or concerns raised.

Action Plans

Detailed strategies outlining steps necessary to achieve specific goals or objectives, typically including timelines, resources, and responsibilities.

Recommended Solution

An advised course of action or remedy, often resulting from analysis or consultation, aimed at solving a specific problem or addressing a particular challenge.

Strong Presence

The ability to command attention and convey confidence and authority in a given space or situation.