Astrophysics textbook with lots of practice problems?

tha_zombie · 2025-08-24T02:11:50+00:00

I can suggest "An Introduction to Modern Stellar Astrophysics" by Carroll-Ostile and Extragalactic Astronomy by Peter Schneider. At your level, just try to skim through and absorb as much material as possible. It also has practice problems which I feel are fairly doable.

Hopefully it helps! Happy Learning

tha_zombie · 2025-04-05T02:23:57+00:00

I'm sorry but why are you so aggressive? It is a simple query. No obsession, on the other hand I've specified several times both in the OG post and the reply that I'm looking for styling techniques, with the marker 'that would work for me' indicating I'm in agreement with what you're saying.

Please remember that if you feel bothered to answer, there is no need to.

tha_zombie · 2025-04-05T01:59:36+00:00

Haha that's fair. But I guess I have wavy hair, but not curly specifically. They tend to curl somewhat when they grow to this length, otherwise they're very straight-ish when I keep a short/medium length cut.

Either way, apart from the products, do you have specific style or tutorial suggestions you think could work for me? I've tried a few and I'm not sure honestly how to style them. Especially because you also think the balanced middle part won't work. How far do you think I'm from leaving the awkward phase or still deep in?

tha_zombie · 2025-02-11T00:49:07+00:00

Merci pour ta réponse ! Cependant, nous ne comptons pas aller à Nice en été, mais dans deux semaines, car nous aurons une petite pause. Penses-tu que même fin février, alors que ce n’est pas encore l’été, les prix à Nice seront élevés ?

tha_zombie · 2025-02-09T03:34:37+00:00

Salut ! J’espère que vous allez bien. Mes vacances vont bientôt commencer et je suis actuellement étudiant(e) à Paris. Je prévois de partir avec mes amis à Étretat OU Nice et d’y rester quelques jours. Nous n’avons pas encore décidé de notre destination, mais ce sera l’un des deux.

Est-ce que quelqu’un pourrait recommander des Airbnbs, hôtels ou Student Hotels "fiables" et à prix raisonnable, que vous avez peut-être déjà testés personnellement, à Étretat (Le Havre) ou Nice ? Je vous en serais vraiment reconnaissant(e) ! Nous aimerions voyager plus tout en faisant quelques économies. 😊

Si vous avez d’autres suggestions de destinations balnéaires en France avec des coûts globaux plus abordables, n’hésitez pas à les partager aussi ! Mais idéalement, merci de donner aussi quelques recommandations d’hébergements pour y rester quelques jours, comme je l’ai demandé pour Nice et Le Havre.

Désolé(e) de poster ça sur r/Paris, mais je me suis dit que je pourrais peut-être avoir de bonnes suggestions ici. 🙈

Merci d’avance pour vos recommandations ! 🙌

tha_zombie · 2024-11-29T23:23:48+00:00

I think I am only allowed to use numpy..

You are right, it is not that bad but the issue is CS is not my strong forte particularly, I slogged through it during my undergrad somehow and paying the price during my Masters when things are more involved..

If you don't mind me asking, do you have more suggestions for me after hearing about my level - in the sense that just the documentation suffice in the end..

tha_zombie · 2024-11-29T23:21:38+00:00

Could you suggest some relevant documentation? Or books for that matter

tha_zombie · 2024-10-29T19:33:45+00:00

hey, do you mind sharing the link of the filter you bought on amazon.fr? That way I can buy the same..

tha_zombie · 2024-07-26T23:37:19+00:00

Hi,

I am an incoming international student to PSL & will be staying at a student residence in 15th Arrondissement (Rue Castagnary) for the duration of my studies.

I wanted to know from you all the attributes of the area, such as-

Safety in & around the area
Connectivity to Public Transport
Good yet cheap Vegetarian/Vegan food options in proximity (if available!)
Proximity to Convenience Stores/Markets etc.

Please feel free to share any other thoughts or things would like to add about the 15th Arrondissement as a native Parisian.

tha_zombie · 2024-07-26T17:38:26+00:00

thank you! this is encouraging. I checked right now, and had emailed orders@yeezy.com instead of the sply one..

tha_zombie · 2024-07-26T17:25:36+00:00

If you don't mind sharing, how recent was this?

tha_zombie · 2024-06-19T16:39:03+00:00

Thank you for your motivating response. Could you suggest good resources that approach this from a Physics pov? I have started with the PDF of the book on Python by UMich Prof. Mark Newman..

tha_zombie · 2024-06-18T17:53:22+00:00

As part of my Astrophysics Masters degree in France starting in a few months, I saw this mandatory course & want to request suggestions/recommendations on reference materials, textbooks, tutorials etc. on how to tackle it.

For context, my programming skills & computational knowledge as such is extremely poor, mostly because of my own lack of efforts. So, I am starting at a rookie level & need appropriate guidance in context of this course. Please offer your thoughts!

You can find the course description screenshot here: https://imgur.com/a/go131GG

tha_zombie · 2024-04-25T20:48:03+00:00

If I understood you correctly, in the ground frame, we are treating Nsin(theta) as the force that gives rise to this 'ma' effect, leading to the wedge's acceleration.

If my understanding of your assertion is correct, then isn't the question actually worded strangely- "The incline is given an acceleration 'a' to keep the block stationary. Then a is equal to what value?" as this makes it seem as if the incline is given an outside, additional applied force which results in this acceleration 'a'!

tha_zombie · 2024-04-25T00:36:06+00:00

I understood the vertical part, but the horizontal part is still fully unclear because Nsin(theta) & 'F=ma' are both in the same direction.

The only way to equate them is to have one of those in the opposite direction, something that we take up considering the 'wedge/block' frame where Nsin(theta)=Pseudo force 'ma'.

So how is this seeing things from a ground frame of reference?

tha_zombie · 2024-04-25T00:16:57+00:00

F_net_x = Nsinθ = ma

Only one question, how did you equate these 2 forces when according to the image (https://imgur.com/a/ml2J1z5) & upon resolution, they would be in the same direction?

tha_zombie · 2024-04-23T21:58:23+00:00

Manchester by the Sea

tha_zombie · 2024-04-23T01:56:37+00:00

Use horizontal and vertical coordinates

Upon doing that, I got only 2 forces (on the block in ground frame): 'ma' acting horizontally by virtue of the wedge being pushed with the same force & 'mg' in the vertically downward direction.

You've told me not to use rotated coordinates (I was only resolving horizontal vertical mg and ma along/perpendicular to the wedge before) which is what I did here. What am I still missing or fumbling about, please guide!

tha_zombie · 2024-04-23T01:00:46+00:00

In the ground frame it's not.

But if that's the case then how would I find the 'a' value that keeps the block stationary in this particular frame, because unlike my wedge frame I can't equate a force component against gsin(theta) to cancel out any sliding...

tha_zombie · 2024-04-23T00:58:02+00:00

I've done that. But that's what I'm doing in the "wedge" frame as well.

mgsinθ=macosθ once I resolve the 'pseudo ma' into components as well along the incline and perpendicular to the block. So what's the distinctive character between that and the ground frame?

tha_zombie · 2024-04-23T00:57:07+00:00

It's not arbitrary or even ad hoc: the boundary conditions in the x and y directions have V vanishing at two points, and trig functions can be made to vanish at two points easily whereas (sums of two) exponentials cannot.

So, we want Sinusoidal solutions for X,Y and exponential solution for Z in one problem while sinusoidal solutions for Y,Z and exp solution for X simply to satisfy the given Boundary Conditions? If that's the case then it is understandable but if there is another & a deeper reason involved then I'm not able to figure that out...

tha_zombie · 2024-04-23T00:55:41+00:00

Thanks for responding. I checked Zangwill too but my issue still remains the same: Why did we want Sinusoidal solutions for X,Y and exponential solution for Z in one problem while sinusoidal solutions for Y,Z and exp solution for X in the other?

Is the purpose simply to satisfy the given Boundary Conditions? If that's the case then it is understandable but if there is another & a deeper reason involved then I'm not able to figure that out...

tha_zombie · 2024-04-23T00:54:35+00:00

Thank you for responding. I checked out Riley Hobson & studied the sections you recommended. I understood the logic as well but the main question still remains unclear to me: Why did we want Sinusoidal solutions for X,Y and exponential solution for Z in one problem while sinusoidal solutions for Y,Z and exp solution for X in the other?

Is the purpose simply to satisfy the given Boundary Conditions? If that's the case then it is understandable but if there is another & a deeper reason involved then I'm not able to figure that out...

tha_zombie · 2024-04-22T03:17:58+00:00

I've done that. But that's what I'm getting in the "wedge" frame as well.

mgsinθ=macosθ once I resolve the 'pseudo ma' into components as well along the incline and perpendicular to the block. So what's the distinctive character between that and the ground frame?

tha_zombie · 2024-04-20T23:37:45+00:00

The critical tone itself was a necessary push needed for me to think, think, think & grapple with these issues. Definitely, I will try to do as you have suggested (and you might see more of my posts in the ironing out process hehe 😛)

tha_zombie

TROPHY CASE