I Balmer Absorption Lines in Different Temperature Stars

  • I
  • Thread starter Thread starter Albertgauss
  • Start date Start date
  • Tags Tags
    Absorption
AI Thread Summary
The discussion focuses on the search for real images of Balmer absorption lines in stars at different temperatures, specifically a 10,000° Kelvin star with strong lines and a colder or hotter star showing weak lines. Participants suggest searching for "stellar absorption spectra" on Google Images to find suitable high-resolution images. There is also a concern about proper credit for the images, with participants confirming the need to check for copyright or commons licensing. The conversation highlights the importance of visual resources for presentations in astrophysics. Overall, the thread emphasizes the relevance of Balmer absorption lines in understanding stellar temperatures.
Albertgauss
Gold Member
Messages
294
Reaction score
37
TL;DR Summary
Balmer strong weak absorption lines
Hi all

I couldn't find on the web anywhere but what I'm looking for is a real image of strong Balmer absorption lines for a 10,000° Kelvin star and also a real image of a weak Balmer absorption lines for both a much colder or hotter star that shows how the absorption lines are weak. Does anybody know a resource that may have some images like this? It's for presentation I'm giving.
 
Astronomy news on Phys.org
I can't find a high resolution image, but you're looking for something like this:
719841-13-5ITQ1.png


You can see that the absorption lines for hot stars (near the top) are typically weaker than those for cooler stars (bottom). You can find plenty of images like this by searching for "stellar absorption spectra" in google images.
 
Yes, perfect. I can use that. Is there credit to be given somewhere or is it commons?
 
Albertgauss said:
Yes, perfect. I can use that. Is there credit to be given somewhere or is it commons?
Oof. I didn't think to check. My apologies.
 
This thread is dedicated to the beauty and awesomeness of our Universe. If you feel like it, please share video clips and photos (or nice animations) of space and objects in space in this thread. Your posts, clips and photos may by all means include scientific information; that does not make it less beautiful to me (n.b. the posts must of course comply with the PF guidelines, i.e. regarding science, only mainstream science is allowed, fringe/pseudoscience is not allowed). n.b. I start this...
Today at about 4:30 am I saw the conjunction of Venus and Jupiter, where they were about the width of the full moon, or one half degree apart. Did anyone else see it? Edit: The moon is 2,200 miles in diameter and at a distance of 240,000 miles. Thereby it subtends an angle in radians of 2,200/240,000=.01 (approximately). With pi radians being 180 degrees, one radian is 57.3 degrees, so that .01 radians is about .50 degrees (angle subtended by the moon). (.57 to be more exact, but with...
Back
Top