# What is the reason for the emission of electromagnetic waves from the sun? [duplicate]

What is the reason for the emission of electromagnetic waves from the sun and why curve its in about the visible light is maximum?

## marked as duplicate by Bill N, Rob Jeffries astrophysics StackExchange.ready(function() { if (StackExchange.options.isMobile) return; $('.dupe-hammer-message-hover:not(.hover-bound)').each(function() { var$hover = $(this).addClass('hover-bound'),$msg = $hover.siblings('.dupe-hammer-message');$hover.hover( function() { $hover.showInfoMessage('', { messageElement:$msg.clone().show(), transient: false, position: { my: 'bottom left', at: 'top center', offsetTop: -7 }, dismissable: false, relativeToBody: true }); }, function() { StackExchange.helpers.removeMessages(); } ); }); }); Mar 6 at 19:51

• Unclear: What are you asking about: 1) fluctuations in the total intensity 2) electromagnetic radiation in general 3) shape of the blackbody radiation curve 4) the specific peak intensity wavelength. ?? – Bill N Mar 6 at 19:06
• Since the sun is a black body and emits electromagnetic waves, the question is: what is the origin of all electromagnetic waves in the sun, such as ultraviolet , infrared, visible, etc radiations, and why in the wavelength-temperature curves, Is maximized in visible light? – abolfazl soulat Mar 6 at 19:22
• You should edit that info into your question. – PM 2Ring Mar 6 at 19:28
• It is a plasma , i.e. ions and electrons at the temperature of the sun radiating in the fields of each other – anna v Mar 6 at 19:29
• So why does it radiate at different wavelengths? – abolfazl soulat Mar 6 at 19:31