This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: You are studying a mystery companion to an evolved star, with mass transfer happening. Which of the ... (Read 20 times)

melina_rosy

  • Hero Member
  • *****
  • Posts: 531
on: Jul 27, 2018
You are studying a mystery companion to an evolved star, with mass transfer happening. Which of the following properties suggests that the companion is definitely a black hole?
 
  A) The mystery companion has a mass of over 1.4 solar masses.
  B) The mystery companion has a mass of over 3 solar masses.
  C) The mystery companion has an X-ray emitting accretion disk.
  D) The mystery companion gives off periodic X-ray bursts.

Question 2

Active galaxies emit most of their radiation as visible light.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

javimendoza7

  • Sr. Member
  • ****
  • Posts: 293
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

FALSE


melina_rosy

  • Member
  • Posts: 531
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

tuate

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Hummingbirds feeding on nectar transfer pollen from flower to flower. Hummingbirds feeding on nectar transfer pollen from flower to flower.
Circumpolar Star Trails Circumpolar Star Trails
A Coronal Mass Ejection A Coronal Mass Ejection
Mass Loss from a Supermassive Star Mass Loss from a Supermassive Star
Humans have evolved, beginning in Africa Humans have evolved, beginning in Africa
For toluene (shown below), you would expect to see which m/z fragment in the mass spectrum? For toluene (shown below), you would expect to see which m/z fragment in the mass spectrum?
Video: Introduction to Dysrhythmia

For a complete list of videos, visit our video library