Physics

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The best explanation for the activity at the center of the galaxy is a(n) ____. a. supercluster ... Started by WhattoUnderstand	1 Replies 68 Views	Jul 27, 2018 by missalyssa26
Which statement about stellar populations is correct? a. Population I stars are found in the disk ... Started by Alygatorr01285	1 Replies 81 Views	Jul 27, 2018 by blakcmamba
Elements above hydrogen and helium come from _____. a. the early stages of the Universe, before ... Started by tuffie	3 Replies 231 Views	Jul 27, 2018 by vickyvicksss
A galactic fountain is _____. a. a stream of gas and dust being pulled into a galaxy as it forms ... Started by RRMR	1 Replies 77 Views	Jul 27, 2018 by asdfasdf
Galactic fountains are an important way to explain _____. a. the distribution of metals in and ... Started by fasfsadfdsfa	1 Replies 32 Views	Jul 27, 2018 by zhanghao
What is the correct ordering of galactic components using the new bottom-up hypothesis starting from ... Started by jessicacav	1 Replies 44 Views	Jul 27, 2018 by alvinum
One of the most important features that must be explained by models during the formation of the ... Started by swpotter12	3 Replies 48 Views	Jul 27, 2018 by amandalm
What is the monolithic collapse hypothesis unable to explain? a. The randomly oriented, elongated ... Started by sam.t96	1 Replies 68 Views	Jul 27, 2018 by Rilsmarie951
What observed feature of the Milky Way is better explained by the bottom-up hypothesis of galactic ... Started by lunatika	1 Replies 51 Views	Jul 27, 2018 by cpetit11
_______________ variable stars are useful in measuring the distance to globular clusters. Fill in ... Started by burton19126	1 Replies 125 Views	Jul 27, 2018 by tashiedavis420
In the late 18th century, two astronomers, both with the last name of _______________, were the ... Started by wrbasek0	3 Replies 134 Views	Jul 27, 2018 by juicepod
An astronomer named _______________ used globular clusters to locate the center of the galaxy. ... Started by Pineapplelove6	1 Replies 81 Views	Jul 27, 2018 by Yixagurpuldink
The galactic _______________ contains very little gas and dust, old stars, and globular clusters. ... Started by imanialler	1 Replies 98 Views	Jul 27, 2018 by Fayaz00962
Stars at different distances from the galactic center revolve with different periods, an effect ... Started by Melani1276	1 Replies 58 Views	Jul 27, 2018 by Alyson.hiatt@yahoo.com
O and B stars only occur in the galactic _______________. Fill in the blank(s) with correct ... Started by james0929	3 Replies 114 Views	Jul 27, 2018 by wilsonbho
Objects used to map spiral arms are called spiral _______________. Fill in the blank(s) with ... Started by sammy	1 Replies 155 Views	Jul 27, 2018 by owenfalvey
A partial, or detached, segment of a spiral arm is referred to as a(n) _______________.. Fill in ... Started by Capo	1 Replies 75 Views	Jul 27, 2018 by carojassy25
Sgr A has been heavily studied using _______________ interferometry. Fill in the blank(s) with ... Started by V@ndy87	1 Replies 37 Views	Jul 27, 2018 by nothere
Astronomers refer to elements heavier than helium as _______________. Fill in the blank(s) with ... Started by craiczarry	3 Replies 87 Views	Jul 27, 2018 by akpaschal
Why was it difficult for astronomers to develop a clear understanding of the Milky Way until the ... Started by Jramos095	1 Replies 63 Views	Jul 27, 2018 by bimper21
What parts of the galaxy are considered to make up the spherical component? What will be an ideal ... Started by sarasara	1 Replies 78 Views	Jul 27, 2018 by macmac
Why do astronomers conclude that the spiral arms are places of active star formation? What will ... Started by notis	1 Replies 75 Views	Jul 27, 2018 by gcook
How have astronomers determined the mass of the Milky Way's supermassive black hole? What will be ... Started by humphriesbr@me.com	3 Replies 94 Views	Jul 27, 2018 by bigsis44
Why do stars in the central bulge have a lower metallicity than stars in the disk? What will be ... Started by saraeharris	1 Replies 68 Views	Jul 27, 2018 by zhanghao
Why are Cepheid variables so important to the study of the Milky Way Galaxy? What will be an ... Started by BRWH	1 Replies 55 Views	Jul 27, 2018 by tsternbergh47