What is the origin of the X-ray bursters quizlet?

What is the origin of the X-ray bursters quizlet?

X-ray bursters occur in binary star systems. The two types of stars that must be present to make up such an object are: a main sequence/giant star and a neutron star in a mass transfer binary.

What may be responsible for the observed gamma-ray bursters?

One explanation proposes that they are the result of colliding neutron stars — corpses of massive stars (5 to 10 times the mass of our Sun) that have blown up as supernovae. A second theory proposes that gamma-ray bursts are the result of a merging between a neutron star and a black hole or between two black holes.

What are X-ray bursters quizlet?

What are X-ray bursters? They are neutron stars on which accreted matter builds up, then explodes in a violent nuclear explosion.

What is the origin of short gamma-ray bursts?

Short Gamma-Ray Bursts (GRBs) are explosions of cosmic origin believed to be associated with the merger of two compact objects, either two neutron stars, or a neutron star and a black hole.

What is the origin of short gamma-ray bursts quizlet?

What is the origin of short gamma ray bursts? It is not known but it may be the collision of a neutron star with a black hole. Observationally, how can we tell the difference between a white-dwarf supernova and a massive-star supernova?

Why do we believe that gamma-ray bursters are not a part of the Milky Way galaxy?

The fact that gamma-ray bursts come from all directions therefore indicated that they originate, not in the solar system or the Milky Way, but out in the wider universe.

What causes a hypernova?

A hypernova (alternatively called a collapsar) is a very energetic supernova thought to result from an extreme core-collapse scenario. In this case a massive star (>30 solar masses) collapses to form a rotating black hole emitting twin energetic jets and surrounded by an accretion disk.

Can Earth survive a gamma-ray burst?

Earth’s atmosphere is very effective at absorbing high energy electromagnetic radiation such as x-rays and gamma rays, so these types of radiation would not reach any dangerous levels at the surface during the burst event itself.

Has a gamma-ray burst ever hit the earth?

Scientists believe that it has occurred at least once before in Earth’s history. And it could happen again, but the burst would have to originate within thousands of light years of Earth.

Who discovered the first pulsar in 1967?

“On 28 November 1967, it came again, a string of pulses one-and-a third seconds apart.” This was not the work of Little Green Men. Jocelyn Bell had discovered pulsars.

What was surprising about SN1987A?

SN1987A, as it is known, was the nearest supernova to be discovered since humans started using telescopes, and it sent astronomers rushing to observatories in Chile and Australia where the star was dying straight overhead.

How is a neutron star created?

Neutron stars are formed when a massive star runs out of fuel and collapses. The very central region of the star – the core – collapses, crushing together every proton and electron into a neutron.

How strong is Garou gamma-ray burst?

Final Tally. However, the chapter stated that Garou fired an authentic 1*10^44 joules Gamma Ray Burst, so this 247-yottatons value is only taking into account the size of the Black Hole and not the statement itself.

What is a gamma-ray burst and where do they occur?

One of the Most Energetic Phenomena in the Universe Gamma-Ray Bursts (GRBs) are bursts of highly energetic gamma rays lasting from less than a second to several minutes – the blink of an eye on cosmological timescales. They are known to occur at huge distances from Earth, towards the limits of the observable Universe.

Where do gamma-ray bursts occur?

This network has provided data showing that gamma-ray bursts are located in galaxies billions of light-years away and that, after the initial gamma-ray flare, the source of the burst produces an afterglow in less-energetic wavelengths.

How were gamma-ray bursts first discovered?

Gamma Ray Bursts (GRBs) were first discovered in the late 1960s by military satellites monitoring the Earth for secret nuclear weapons tests. Although astronomers continued to collect data over the next 30 years, little progress was made in understanding these events due to their very brief and transient nature.

What was the first gamma-ray burst?

July 2, 1967: The Vela 4a,b satellite makes first-ever observation of a gamma-ray burst.

How are gamma-ray bursts named?

GRBs are named after the date on which they were detected: the first two numbers correspond to the year, the second two numbers to the month, and the last two numbers to the day.

What was the launch of Sputnik quizlet?

In October 1957, the Soviet Union surprised the world by launching Sputnik, the first artificial satellite to orbit the earth.

What is Orif quizlet?

open reduction, internal fixation (ORIF) of a fracture. internal surgical repair of a fracture by bringing bones back into alignment and fixing them in place with devices such as plates, screws, and pins.

What does blast stand for quizlet?

BLAST (Basic Local Alignment Search Tool) is a set of similarity search programs designed to explore all of the available sequence databases regardless of whether the query is protein or DNA.

What are the two possible types of leftovers from a supernova?

Type I supernovae typically don’t leave anything behind at all: all of the star’s matter, including its iron core, is blasted into space….Type II supernovae usually leave behind one of three objects:

• A neutron star.
• A pulsar (this is just a spinning neutron star, really)
• A black hole.