These are discussions post and responses to two classmates.
Please make the initial post at least 250 words and the responses to classmates
100 words. Please list all references that you may use.
In this discussion activity, you will use what
you have learned through the assigned readings on how stars end their lives as
main-sequence stars to investigate nearby stars for candidates for such fiery
deaths. Before participating in the discussion:
·View Video: The death of a low-mass star (Links to an external site.)Links
to an external site. [Video file][2 min 22 sec]
·View Video: The death of a massive star (Links to an external site.)Links to an external site.
[Video file][4 min 19 sec]
Now let’s begin the discussion:
What kinds of stars would you, as an
astronomer sometime in the future, monitor if you wished to observe a supernova
explosion from its very beginning?
answer this question, consult the lists of the nearest and brightest stars,
found in Appendix 4 of your textbook and on this webpage (Links
to an external site.)Links to an external site.,
Which, if any, of these stars are possible
supernova candidates? Explain. Compare your results with at least two of your
classmates. Did the spectral-type of the stars they identified differ from
Remember that there are two types of
supernova, Type IA and Type II. Choose one of these types for this activity.
What is the difference between the types? What are the conditions necessary for
each to happen? The answers to these questions should guide you on your search
for candidate stars.
For full credit, you should explore at least
one resource besides your textbook. Be sure to cite references used.
an astronomer I would try and focus my efforts and monitor stars that are in
the red super-giant stage of their lives or the white dwarf stage. We would be
able to narrow our search by limiting ourselves to monitor spectral the classes
D, M, and K and ensure they are in the correct luminosity range to indicate a
situation that is ripe for a potential supernova. A current star being observed
as supernova candidate, Betelgeuse which sits in the constellation of
Orion is already in the M spectral class and is nearing the end of its
life. The interesting part of Betelgeuse is its relatively close to
our system which would prove to be an awesome sight day and night
two types of supernova which are type IA and II. I believe that the Hadar will
become a supernova type II. The major differences between type IA and II is
that type II supernova is about 5 times less luminous than type IA (OpenStax,
2016, p. 850). Also type IA supernova "light output initially increases
and then slowly decreases over time" (OpenStax, 2016, p. 850). I
believe that since the mass of the Hagar is 14.7 as greater than the Sun when
the core collapses the fusion process will create an extremely powerful