Is astrophysics a prerequisite to study cosmology?

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Discussion Overview

The discussion centers on the relationship between astrophysics and cosmology, specifically whether astrophysics should be a prerequisite for studying cosmology. Participants explore the implications of course prerequisites and personal academic planning within the context of their university's requirements.

Discussion Character

  • Debate/contested
  • Homework-related

Main Points Raised

  • Some participants express surprise that astrophysics is not a prerequisite for cosmology at their university, questioning if this is a broader trend.
  • One participant suggests that having fewer prerequisites can facilitate course scheduling and that essential material can often be learned independently.
  • A participant considers skipping astrophysics to focus on other subjects, weighing the challenges of prerequisite chains in astrophysics against other disciplines like nuclear physics.
  • Another participant, who has not taken either subject, advises consulting the course professor to assess the necessity of astrophysics knowledge for cosmology.
  • One participant ultimately decides to take astrophysics despite the associated prerequisites, believing it will be more beneficial than other subjects they considered.

Areas of Agreement / Disagreement

Participants express differing views on the necessity of astrophysics for cosmology, with some advocating for its importance while others believe it can be bypassed. The discussion remains unresolved regarding the optimal path for students.

Contextual Notes

Participants mention varying prerequisite requirements across different universities, indicating that experiences may differ based on institutional policies.

Wledig
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I find it strange that astrophysics is not a pre-requisite to study cosmology in my university, students are only required to have taken general relativity. Is this a trend? How important would you say is astrophysics to learn cosmology?
 
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Wledig said:
I find it strange that astrophysics is not a pre-requisite to study cosmology in my university, students are only required to have taken general relativity. Is this a trend? How important would you say is astrophysics to learn cosmology?

Having too many pre-reqs makes course scheduling harder, and in many cases, enough material can be learned on the fly without requiring an entire course as a pre-req.
 
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I agree. I am asking because I'm trying to schedule things and it's being tricky. Since astrophysics is not a prerequisite for cosmology I thought about skipping it and maybe studying on my own. It's not like I'm not interested in the subject, but astrophysics also has it's own chain of prerequisites, that is one needs to have already attended astronomy and plasma physics, which would take me a year while also tackling other challenging disciplines. Skipping it would allow me to pursue other subjects such as nuclear physics, which also has a long list of requirements, but I'm thinking that might be too reckless. Can any other PF members advise me on this? Did you take astrophysics as an undergraduate? Did it help you with cosmology?
 
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I haven't taken either subject personally, but if your university doesn't list it as a pre-req you should be ok.

If you have concerns go talk to the professor that will teach the course. They should be able to tell you how much astrophysics you need to know.
 
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Thanks for the reply. It's not a prerequisite in my university, but I know it is in others. Anyways, I think I made up my mind to take astrophysics and follow it's dreadful chain of prerequisites. I think I'll benefit more from it, than say, fluid mechanics or nuclear physics.
 

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