The Spectrum of a BL Lacertae Object Shows

question 63

Multiple Choice

The spectrum of a BL Lacertae object shows:

• A) strong, highly redshifted emission lines.
• B) doubled emission lines split by the Doppler shift from oppositely directed jets of material.
• C) absorption lines of highly ionized atoms.
• D) a smooth continuum with no recognizable features.

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Definitions:

Building Materials

Substances used in the construction of buildings and structures, ranging from natural materials like wood and stone to man-made products like concrete and metal.

Sales Force

A team or division within a company that is focused on selling the company's products or services to customers.

Personal Selling

A direct method in which a salesperson uses person-to-person interaction to demonstrate and sell their product to an individual consumer or business.

Consumer Needs

Consumer Needs pertain to the desires or requirements of customers that motivate their purchasing behaviors.