What Makes White-Dwarf Supernovae Good Standard Candles

question 72

Multiple Choice

What makes white-dwarf supernovae good standard candles?

• A)They are very bright,so they can be used to determine the distances to galaxies billions of light-years away.
• B)They should all have approximately the same luminosity.
• C)They occur so frequently that we can use them to measure the distances to virtually all galaxies.
• D)We have had several occur close to us in the Milky Way,so we have been able to determine their luminosities very accurately.
• E)both A and B

---

Definitions:

Variable Factory Overhead

Costs of production that fluctuate with the level of output, such as utility expenses and materials used in the manufacturing process, excluding direct labor and materials costs.

Fixed Factory Overhead

Costs associated with manufacturing that do not change with the level of production, such as salaries of supervisors and rent of the facility.

Sales Forecast

A sales forecast is the projection of the amount of revenue a company will generate through sales activities over a specific period.

Cash Receipts

Represents the money received by a business during a specific period, including revenues from sales, services, and loans.