On An Hr Diagram A Protostar Would Be

2 above and to the right of the main sequence. 4 below and to the left of the main sequence.

Episodic Excursions Of Low Mass Protostars On The Hertzsprung

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On an hr diagram a protostar would be. Explain the interplay between gravity and pressure and how the contracting protostar changes its position in the hr diagram as a result one of the best ways to summarize all of these details about how a star or protostar changes with time is to use a hertzsprung russell hr diagram. The single most important determinant of the temp density radius luminosity and pace of evolution of a protostar is its. As the protostar continues to contract its outer layers will heat up.

Motion on the hr diagram. However the outer layers of this protostar are cooler than the sun so the point we plot on the hr diagram for this protostar is above and to the right of the suns current location in the diagram temperature about 3500 k. As a clump of interstellar gas contracts to become a main sequence star its changing position on the h r diagram tells us.

On an h r diagram a protostar would be above and to the right of the main sequence 27. 1 on the main sequence at the extreme lower right. Such a path on the hr diagram for a star or a protostar is called an evolutionary track.

Therefore we may envision them following a path in time on the hr diagram. A star burning hydrogen into helium in a shell around the core. Stellar evolutionary tracks in the hr diagram.

As protostars contract to the main sequence both their luminosities and their surface temperatures change. 3 below and near the right side of the main sequence. When helium fusion begins in the core of a red giant star the situation quickly gets out of control because electron degeneracy pressure does not respond to changes in.

5 above and near the upper left of the main sequence.

Star Formation On The H R Diagram