ESS Part 1

What image is this?

• cluster of galaxies

• globular cluster

• elliptical galaxy

• spiral galaxy

• black hole

The dark shadow from this image implies a Schwarzschild radius of 1.95 x 10^10 what is the mass of the object

• 130 M

• 6.5 M

• 19.5 M

• 6.5 x 10^9

• 19.5 x 10^9

What image is this?

• cluster of galaxies

• globular cluster

• elliptical galaxy

• supernova remnant

• planetary nebula

How many stars does an object like this contain?

• 10,000 stars

• 1 million stars

• 100 million stars

• 10 billion stars

• 1 trillion stars

Notice the jet coming from the center of this image. What produces this jet

• A 50M black hole

• A supermassive black hole

• A neutron star

• A white dwarf supernova

• A core-collapse supernova

What image is this?

• Cluster of galaxies

• Globular cluster

• Elliptical galaxy

• Supernova Remnant

• Planetary Nebula

How hot would the glowing plasma have to be to produce strong X-ray emission

• 600 K

• 6,000 K

• 60,000 K

• 600,000 K

• 6 million K

What type of object is the bright bluish-white point of X-ray light at the center of the image

• A supernova giant whose mass exceeds 8M

• A giant star whose mass is less than 8M

• A 2 to 3M neutron star

• A 8M black hole

• A 1M white dwarf

If we had observed the object in the image 100,000 years ago, what would we have seen?

• A supernova star whose mass would have exceeded 8M

• A giant star whose mass was less than 8M

• A 2 to 3M neutron star

• An 8M black hole

• A 1M white dwarf

What image is this?

• Cluster of galaxies

• Globular cluster

• Elliptical galaxy

• Supernova Remnant

• Planetary Nebula