Where are ionization nebulae found?
Like the dust clouds, ionization nebulae are located primarily within or on the edges of spiral arms. This is because spiral arms are regions of active star formation. Stars are born within dust clouds, and ionization nebulae are ionized by the intense light from massive, young stars.
Where would you most likely find a nebula?
Where are nebulae? Nebulae exist in the space between the stars—also known as interstellar space. The closest known nebula to Earth is called the Helix Nebula. It is the remnant of a dying star—possibly one like the Sun.
Why are ionization nebulae found near hot massive stars?
what are ionization nebulae, and why are they found near hot, massive stars? ionization nebulae are colorful, wispy blobs of gas found near hot star. they require the hot stars' ultraviolet light to raise the electrons in the atoms of the gas to high energy levels or to ionize the atoms completely.
Where are most of the Milky Way is globular clusters found quizlet?
Globular clusters contain thousands of stars, all closely packed together. They are found mainly in the halo of the galaxy.
What is ionization nebula?
ionization nebulae are colorful wispy blobs of gas found near hot star. they require the hot stars' ultraviolet light to raise the electrons in the atoms of the gas to high energy levels or to ionize the atoms completely.
What is an ionization nebula quizlet?
What is an ionization nebula? A colorful cloud of gas that glows because it is heated by light from nearby hot stars.
Where would you most likely find an ionization nebula quizlet?
Where would you be most likely to find an ionization nebula? the orbits of stars in the galactic center.
Where are H II regions found?
spiral galaxies H II regions are found only in spiral galaxies like the Milky Way and irregular galaxies. They are not seen in elliptical galaxies. In irregular galaxies, they may be dispersed throughout the galaxy, but in spirals they are most abundant within the spiral arms.
Where are we most likely to see ionization nebulae in spiral galaxies?
Like the dust clouds ionization nebulae are located primarily within or on the edges of spiral arms. This is because spiral arms are regions of active star formation. Stars are born within dust clouds and ionization nebulae are ionized by the intense light from massive young stars.
How is an ionization nebula produced?
An emission nebula is a nebula formed of ionized gases that emit light of various wavelengths. The most common source of ionization is high-energy ultraviolet photons emitted from a nearby hot star.
Where does most star formation occur in the Milky Way today?
spiral arms 10) Most of the current star formation in the Milky Way occurs in spiral arms.
Where is ionized hydrogen found?
It exists througout galaxies as interstellar gas clouds called HII regions, or as part of the intercloud gas. However, the most spectacular manifestations of ionised hydrogen are the bright emission nebulae that occur when a cloud of neutral hydrogen is ionised by the UV radiation from young, massive stars.
Where are emission nebulae HII regions found quizlet?
Emission Nebulae (HII regions): Most of the interstellar gas is in a neutral state but in some regions astronomers find what are called HII regions these regions are produced when a hot star (10,000 K or hotter) is located in a gas cloud.
Where does most star formation take place quizlet?
Where does most star formation occur in the Milky Way galaxy today? In the spiral arms.
Which region in the Milky Way has the most stars?
The highest density of star formation is actually in the inner region of the Milky Way.
Is ionized hydrogen in the atmosphere of stars?
Ionized hydrogen is one ingredient in the soup of elements that make up what astronomers call the interstellar medium, the patchy mix of dust and gas that exists between the stars.
Where are HII regions emission nebulae found quizlet?
Emission Nebulae (HII regions): Most of the interstellar gas is in a neutral state but in some regions astronomers find what are called HII regions these regions are produced when a hot star (10,000 K or hotter) is located in a gas cloud.
What is an emission nebula quizlet?
Emission Nebula. Clouds of high temperature gas. The atom in the cloud are energized by ultraviolet light form a nearby star and emit radiation as they fall back into lower states. These nebulae are usually red because the predominant emission line of hydrogen happens to be red.
What is an emission nebula H II region )?
H II region, also called diffuse nebula or emission nebula, interstellar matter consisting of ionized hydrogen atoms. The energy that is responsible for ionizing and heating the hydrogen in an emission nebula comes from a central star that has a surface temperature in excess of 20,000 K.
Where do most star formation take place?
Stars are born within the clouds of dust and scattered throughout most galaxies. A familiar example of such as a dust cloud is the Orion Nebula. Turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction.
Where does most star formation in galaxies occur?
Giant Molecular Clouds (GMC) — It is well-established that GMCs are the clouds in which star formation occurs.
Where are most star forming regions in the Milky Way quizlet?
Where do stars tend to form in our galaxy? Active star-forming regions, marked by the presence of hot, massive stars and ionization nebulae, are found mostly in spiral arms. In each arm, a spiral density wave causes gas clouds to crash into each other and to form clusters of new stars.
In which region of the galaxy does star formation occur quizlet?
Where does most star formation occur in the Milky Way galaxy today? In the spiral arms.
Where is ionized hydrogen most commonly found?
It exists througout galaxies as interstellar gas clouds called HII regions, or as part of the intercloud gas. However, the most spectacular manifestations of ionised hydrogen are the bright emission nebulae that occur when a cloud of neutral hydrogen is ionised by the UV radiation from young, massive stars.
How are emission nebulae formed?
An emission nebula is created by ionised gases, usually by high-energy ultraviolet photons emitted from a nearby hot star, that emit light of various wavelengths.
What occurs in HII regions of the Galaxy?
H II region, also called diffuse nebula or emission nebula, interstellar matter consisting of ionized hydrogen atoms. The energy that is responsible for ionizing and heating the hydrogen in an emission nebula comes from a central star that has a surface temperature in excess of 20,000 K.
Which type of nebula can be studied most easily to gain the most information about the composition of the interstellar medium?
Cards
| Term How much of the visible mass of the Milky Way Galaxy is int the form of gas and dust spread out between the stars? | Definition 10% |
|---|---|
| Term Which type of nebula can be studied most easily to gain the most information about the composition of the interstellar medium? | Definition emission nebula |
•Nov 4, 2012
What are three types of nebulae where stars are forming quizlet?
There are five different types of nebulae.
- Emission.
- Reflection.
- Dark.
- Planetary.
- Supernova remnants.
In which kind of nebula do you expect to find a star beginning to form?
Stars are born in clouds of gas and dust. One such stellar nursery is the Orion Nebula, an enormous cloud of gas and dust many light-years across. Turbulence from deep within these clouds creates high density regions called knots.
In what part of the Galaxy are you most likely to find emission nebulae?
One of the most famous emission nebulae is the Orion Nebula (M42) located just below Orion's belt. Another common type of emission nebula is a planetary nebula. These objects consist of a central white dwarf star surrounded by clouds of gas released as the original star evolved to the white dwarf phase.