Astrophysics Definition and 845 Threads

Hello, I need an astrophysics simulator. I've googled and yahooed but couldn't find any. If you kno where I could download one please let me know. Thanks for your time.

Which are some of the most nascent and/or least researched subjetcs in observational astrophysics?? how about Quasars and Pulsars?? So far i know it needs top quality instrumentation to get info about them...can anyone tell me about the "hot topics" in astrophysics in the near future. Dark...

On my apps I've been concentrating mostly on condensed matter or high energy physics, but I also love astrophysics and want to apply to one school to have the option open. However, I've heard that it's easier to get in (as in, scores are often lower for applicants). Is this true or not? I want...

Hello, I've taken a look around these forums, but I haven't seen such questions. I'm interested in Astrophysics (I'm even applying to University of Cambridge for this course), but I'm a very beginner in it. The question is: what should I start with? Yes, of course maths - that's not a...

I'm familiar with the NSF fellowship, but I was wondering if there are any others I should be looking into to support a PhD in Astrophysics. Any suggestions?

I plan on a double major in physics and astrophysics, possible a math minor mor major too. I have looked at school websites for the books they use and have had no luck. Is thre anywhere online i can find what books a school uses for what class? If not what are some good astrophysics books that i...

I was wondering if someone could give me a top ten of astrophysics programs (or less, if you are not familiar with 10). Here's my current list, in no particular order, based on my limited research: 1. UCB 2. UCSB 3. Cal Tech 4. University of Chicago 5. University of Arizona 6. UCSC 7...

[FONT="Times New Roman"][SIZE="4"]Firstly, what is astrophysics exactly? Is it the same as astronomy? Also, can I study astrophysics after studying aerospace engineering? If so, is it worthwhile? or I just get simply two kinds of degrees?

In no more than half a page for each process, summarise the physical nature of each known nucleosythetic process and the environment in which each process takes place. (s, r and p processes) I was just wondering what would you say is meant by the "physical nature"?? I've explained the...

http://ascl.net/

"A star, with mass 5.40*10^30 kg, revolves about the center of the Milky Way galaxy, which is 3.93*10^20 m away, once every 3.41*10^8 years. Assuming that each of the stars in the galaxy has a mass equal to that of our star, that the stars are distributed uniformly in a sphere about the galactic...

OK PhD's, check this out! http://universe.gsfc.nasa.gov/ - Exploration of the Universe Division :-p http://universe.gsfc.nasa.gov/jobs/ - :-p Go for it! [SIZE="1"]This probably belongs under Academic and Career Guidance, but it seems more appropriate here.

Hi all, I just found out that the college I will be attending this Fall is no longer offering the program that I wanted to do (Computer Information Systems) as undergrad. It got me thinking about what I really want to do. So I moved to America from the UK almost a year ago. Instead of...

math is must commonly used in astrophysics and quantum physics? This might be a stupid question. Not sure

guys please help me with these questions, we had to do the astrophysics course over the holidays by ourselves and I haven't quite understood these sections 1. How far from the Earth is 61 Cygnus (a) in parsecs (b) in light years if it’s annual parallax is 0.29 arc seconds. 2...

Introductory Astronomy & Astrophysics by Zeilkik and Gregory 4th edition. What are your opinions on this book? As far as I know the field has changed dramatically over the years and I was wondering if I should get a better or newer book since it was published in 98. I also heard it had a...

So, I'm a US student. I'm in my second year at uni. I was thinking about transfering maybe to a school in europe. Here in the US we have sites like collegboard.com or princetonreview.com where you can search criteria and it'll show you all the schools that match your preferences. is there...

I just want to know if anyone has any good web sites on astrophysics. I am a beginner and I do not know where to start. Thank you very much.

Question: A typical white dwarf has a mass of 1 solar mass and a radius of 10 thousand km. A typical neutron star has a mass of 1.5 solar masses and a radius of 30km. Given that there's a natural speed limit in Nature, namely the speed of light, is it possible to have a contact binary...

hi, I have some money which I have to spend on physics & astrophysics books. I want your openion on this matter. I am looking for books which are not too specific. For example I like A&A library of Springer but I do not want to buy books like "Supernovae" or "Gravitational lensing". From...

I am searching for one or more good references in astrophysics. It should cover in any case the physics of interstellar medium and radiative processes. It would be nice if it cointains stars, stellar systems and stellar evolution. If must not contain galactic dynamics, structure formation and...

Hello everyone! I've been fascinated by Astrophysics, astronomy and indeed astrophotography for quite a while now. Even though my knowledge is in its infancy, my dilemma as a student is not knowing where the three categories listed above can lead me up to. What type of careers is one...

You know, there are many things in astrophysics, that i do not understand :smile: For example, this thing of the Hubble distance. At distances that exceed the Hubble distance the universe is expanding with velocities that are bigger then the speed of light. Suppose that in this region a...

Show that 1600 light years is equal to a distance of 1.5x10exp19 ? my answer 1600x365x24x60x60=wrong answer The black Hole was detected because of its effects on its neighbouring star. why do astromers have to rely on indirect evidence for looking at stars? A star has a a radius of...

I am an aerospace engineering major. Does anyone have any thoughts on how that would work? Course work involved, how hard it is? Thanks!

Question: Assuming a flat universe, find the angular size of the largest causally connected region of the CBR. Hint: We see this region as it existed at the time of decoupling, when the CBR photons were set free. -----------------------------------------------------------------------...

This is from Physics 312 Astrophysics at Washington University. Question: What temperature would be required for two protons to collide if quantum mechanical tunneling is neglected? Assume that nuclei having velocities ten times the root mean square (rms) value for the Maxwell-Boltzmann...

Hi, I'm interested in learning just how scientific research is done—specifically for Astrophysics. I would like to start some preliminary research for the Siemens-Westinghouse competition in October, but I'm wondering if research can be done in Astrophysics without a multi-billion dollar...

Hello everyone, I am searching for a whole course on undergraduate Astrophysics which cover some topics like: formation of stars/accretion disk/hertzsprung russel diagram/ energy transport and generation in stars etc.. I have been searching only to coming up with some course either very...

Hi all, I'm looking for some suggestions for a few problems I'm working on. 1. A very simple problem with a comet of orbital period 100 years and perihelion distance from the center of the Sun that is twice the distance of the solar radius. Now, I was looking for the velocity of the comet...

I was wonderiong what actually this field is, is it Astronomy with more math and physics? Or is it relevant to the Big Bang and Quantum physics? Just wondering

I was just wondering if what job opportuniteis are out there for an Astrophysicist. I am actually really into that these days.. Hehe..

Hi I am just in my first yr doing a physical & life sciences degree, Its a 3 yr course for ordinary degree & 4 yrs for honours degree, but in the second year I have to choose in which direction I am heading in, ie for physics, Chemistry, or Biology. Im choosing physics & then after this...

How would I got about learning the mathematics side of Astrophysics. What would someone have to know? And are there good sites that teach you, or introduce you well?

Hello all - I was wondering if anyone knew of any GOOD colleges that offered all or at least part of a Bachelor's degree in Astrophysics via distance learning. I'll be transferring to a sea duty here, and could just wait to go straight to college, but I'd like to get at least something done...

Here is the problem... Consider a row of isotropically emitting streetlamps 15m apart. On a foggy light, an observer standing next to the 1st light notes the radiation flux from the 2nd light is 5.0 times that of the 3rd. The last streetlamp definitely seen is the 12th. If the air+fog...

http://preposterousuniverse.blogspot.com/2004/10/nasa-abandoning-astrophysics.html

For an astrophysics major, would it be beneficial to take on math as a minor? Also, are there any other minors that would be good for an astrophysics major?

ATM I'm at a JC and I will be transferring next year under the astrophysics major. Anybody have any inside information or anything about schools in california. Also keep in mind, caltech doesn't really take transfer students...but hey, there is always grad school. :)

Hi, I am currently a second year BSc student in South Africa doing physics,chem and math. I've always been interested in space and I am considering going into astrophysics as an career option. I'm just unsure whether there is a demand for astrophysicists around and what the future of...

Hey, I'm a 2nd year student @ warwick university (UK) currently studying a masters in physics. I eventually plan on studying for a PhD in the states in Astrophysics.. Not many people seem to know around here so I thought I'd give this forum a shot.. Which schools in the US are well known...

Looking at the astro-ph section of the preprint arxiv the last few days I was struck by two things: there ws a fresh flood of papers every day, and nearly every paper had multiple authors. Thinking about how long it takes to produce a paper, that's an awful lot of (presumably funded) work for...

Hi, I am an undergrauate in physics right now, and I am trying to figure out where I want to focus my attention when I go into grad school. I have always been really intrigued by space/astronomy and figured astrophysics would be a natural progression of that. At my university there happens...

At school we have been given a very important research assignment, but my team-mates (we work in groups) and I don't have a subject to research on. Does anyone have any ideas? My team-mates and I would really appreciate it. We were thinking about researching something on rocketfuel (or just...

Hello everyone, Since I haven't seen any introductions section here (like the one mkaku.org has) I was hoping that members could introduce themeselves in this thread so everyone can get to know each other better, especially new members like myself. Let me introduce myself first, My name...