Astrophysics (1 Viewer)

4DOGS

Member
Joined
Dec 19, 2005
Messages
60
Location
Engadine
Gender
Male
HSC
2006
Yeh thats what i put less that 5 solar masses and a main sequence star. I left it and then looked at the next question and it said greater than 10 solar masees. Its definately not 1 sollar masses cos thats a white dwarf and wouldnt be situated on the main sequence of the HR diagram.
 

*yooneek*

@UTS...I <3 Jesus
Joined
Aug 16, 2005
Messages
515
Gender
Female
HSC
2006
i stuffed astro up so badly... and it wasnt even that difficult... i just didnt know my stuff... and im such an idiot...i used the distance modulus formula for that equation :( sooooooooo silly...ahh well, cant change it now :(
 

P_Dilemma

Extraordinary Entertainer
Joined
Oct 18, 2004
Messages
752
Location
The Void
Gender
Male
HSC
2006
Astro was simple, made me glad i studies more than i needed to.

-P_D
 

*yooneek*

@UTS...I <3 Jesus
Joined
Aug 16, 2005
Messages
515
Gender
Female
HSC
2006
karumi said:
Well it was good because having not done enough study for physics I was practically freaking out about failing and seeing there were questions I could actually DO in the Astrophysics section comforted me just that little bit. The 7 marker was perfect cause it was one of the things I did study at the last minute. Hope I wrote enough. I mentioned Galileo, telescopes, spectroscopy, photometry, parallax blah blah blah. Spent too much time on it though. ^^;;
that sounds great!
im sure u nailed it :)
 

Lachdog

New Member
Joined
Oct 28, 2006
Messages
7
Gender
Male
HSC
2006
What did everyone write for the question that asked, how did u dermine that the data u obtained was reliable
 

P_Dilemma

Extraordinary Entertainer
Joined
Oct 18, 2004
Messages
752
Location
The Void
Gender
Male
HSC
2006
I just said repeated trials and comparing results with fellow students/investigators.

-P_D
 

StYlez-

New Member
Joined
Aug 26, 2005
Messages
20
Gender
Male
HSC
2006
4DOGS said:
Yeh thats what i put less that 5 solar masses and a main sequence star. I left it and then looked at the next question and it said greater than 10 solar masees. Its definately not 1 sollar masses cos thats a white dwarf and wouldnt be situated on the main sequence of the HR diagram.
Is this the explain wat type & mass of star is at pt A.

dude. its a 1 solar mass, spectral class F9-G1.

read it off the graph.
 

meekzy89

New Member
Joined
Mar 28, 2006
Messages
13
Gender
Female
HSC
2006
4DOGS said:
Yeh thats what i put less that 5 solar masses and a main sequence star. I left it and then looked at the next question and it said greater than 10 solar masees. Its definately not 1 sollar masses cos thats a white dwarf and wouldnt be situated on the main sequence of the HR diagram.
LOL!! it is one solar mass!! becuz point A is where our sun lies

our sun is ONE SOLAR MASS!!.. and it is in the main sequence!

hehe
 

gamecw

Member
Joined
May 5, 2006
Messages
242
Gender
Male
HSC
2006
meekzy89 said:
LOL!! it is one solar mass!! becuz point A is where our sun lies

our sun is ONE SOLAR MASS!!.. and it is in the main sequence!

hehe
are u sure? im pretty sure its on the left of 1 solar mass, so it shud be 5 solar masses...

the syllabus says u gotta know 1,5,10 solar mass's life path.. and this one is mostly likely to be 5..
 

Jouma47

New Member
Joined
Feb 9, 2006
Messages
29
Gender
Male
HSC
2006
ruski88 said:
what did u guys have for the h-r diagram? i didnt know what reactions occurred in the white dwarf..i just wrote that there werent any reactions :S

for part ii) the type and mass of star A - i had main sequence and one solar mass...is that all u had to write?

for part iii) i basically wrote that the star of 10 solar masses would become supergiant and then a black hole
electron degenercy is what i wrote
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top