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 45 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
Excellent

jojobee318

  • Member
  • Posts: 298
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

star cluster NGC 6604 star cluster NGC 6604
Betelgeuse star (Hubble) Betelgeuse star (Hubble)
A Coronal Mass Ejection A Coronal Mass Ejection
The Structure of an Old High-Mass Star The Structure of an Old High-Mass Star
The slight (5 microsecond) difference in the firing of the companion cylinders is enough time to ... The slight (5 microsecond) difference in the firing of the companion cylinders is enough time to ...
Determine the mass of a nonvolatile, nonionizing compound that must be added to 4.76 kg of ... Determine the mass of a nonvolatile, nonionizing compound that must be added to 4.76 kg of ...
Video: Type of Cell Junctions - Desmosome, Hemidesmosomes and Gap Junctions

For a complete list of videos, visit our video library