Radius of a star as a function of wavelength

Click For Summary
SUMMARY

The radius of a star does not vary significantly across different wavelengths, particularly within the 100 nm to 100 micron range. Most radiation in this spectrum originates from the photosphere, which maintains a consistent size regardless of the wavelength. Paul Swanson's research on radio band radius provides insights, but there is a lack of comparative studies between optical and infrared measurements. This indicates a need for further exploration in this area.

PREREQUISITES
  • Understanding of stellar photosphere characteristics
  • Familiarity with electromagnetic spectrum and its wavelength ranges
  • Knowledge of observational astronomy techniques
  • Basic comprehension of astrophysical research methodologies
NEXT STEPS
  • Research Paul Swanson's findings on radio band radius
  • Investigate optical and infrared measurement techniques in stellar astronomy
  • Explore the impact of wavelength on stellar radiation properties
  • Study comparative analysis methods in astrophysical research
USEFUL FOR

Astronomers, astrophysics researchers, and students interested in stellar characteristics and radiation analysis will benefit from this discussion.

natski
Messages
262
Reaction score
2
Hi all,

My question is, does the radius of a star vary significantly between different wavelengths? I am particularly interested in the 100 nm to 100 micron range. I found a paper by Paul Swanson on the radio band radius, but so far can find nothing which compares optical and infrared measurements.

Natski
 
Astronomy news on Phys.org
In this wavelength range, most of the radiation comes from the photosphere, which I don't think would vary much in size as a function of wavelength
 

Similar threads

Undergrad Luminous Fast Blue Optical Transients (LFBOTs)
  • · Replies 0 ·
Replies
0
Views
499
Graduate Cloud of neutral hydrogen is moving towards us at a speed
  • · Replies 1 ·
Replies
1
Views
6K
Undergrad Why Is a Single Wavelength Used to Calculate Hubble's Diffraction Limit?
  • · Replies 8 ·
Replies
8
Views
3K
Graduate Falsifications and constraints due to GW measurements
  • · Replies 19 ·
Replies
19
Views
5K
Graduate Is Proxima Cen the nearest star?
  • · Replies 14 ·
Replies
14
Views
4K
Graduate What proportion of stars have proper motion
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Anomalous Quasar Observations 200k Light Year Jet? And So On.
  • · Replies 11 ·
Replies
11
Views
4K
The diffraction limit of the Hubble ST
  • · Replies 2 ·
Replies
2
Views
10K
Graduate Questionable research practices in Nuclear Fusion
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Bulk and Slab electronic structure differences
  • · Replies 6 ·
Replies
6
Views
4K