Black hole - frequencies used for viewing

AI Thread Summary
Different frequencies are chosen for viewing stars and black holes because they correspond to the emissions from various celestial objects and can penetrate obstacles like dust in space. For instance, visible light is often obstructed, while radio and infrared frequencies can pass through these barriers. The specific use of 43 GHz and 230 GHz for observing black holes likely relates to the unique radiation they emit or the limitations of other frequencies in the spectrum. Understanding these frequencies is crucial for effective astronomical observations. The choice of frequency is essential for gathering accurate data about black holes and their environments.
isha89
Messages
5
Reaction score
0
Hey,

In space missions why do they choose different frequencies for viewing stars?

For example why do they choose both 43 GHz and 230 GHz to view a black hole?


Cheers!
 
Astronomy news on Phys.org
Different frequencies are emitted by different types of objects. They also can penetrate different things in space, such as visible light being blocked by dust while radio-infrared is able to penetrate it. I can't say why 43 ghz and 230 ghz is used to view certain black holes, but I assume it's either because much of rest of the spectrum is blocked or because the black hole emits radiation specifically at these frequencies.
 

Thread 'Does it make sense to build new radio telescopes?'

TL;DR Summary: In 3 years, the Square Kilometre Array (SKA) telescope (or rather, a system of telescopes) should be put into operation. In case of failure to detect alien signals, it will further expand the radius of the so-called silence (or rather, radio silence) of the Universe. Is there any sense in this or is blissful ignorance better? In 3 years, the Square Kilometre Array (SKA) telescope (or rather, a system of telescopes) should be put into operation. In case of failure to detect...
View full post »

Thread 'Potential biosignature found in Mars rock'

Publication: Redox-driven mineral and organic associations in Jezero Crater, Mars Article: NASA Says Mars Rover Discovered Potential Biosignature Last Year Press conference The ~100 authors don't find a good way this could have formed without life, but also can't rule it out. Now that they have shared their findings with the larger community someone else might find an explanation - or maybe it was actually made by life.
View full post »
Thread 'Could gamma-ray bursts have an intragalactic origin?'

Thread 'Could gamma-ray bursts have an intragalactic origin?'

This is indirectly evidenced by a map of the distribution of gamma-ray bursts in the night sky, made in the form of an elongated globe. And also the weakening of gamma radiation by the disk and the center of the Milky Way, which leads to anisotropy in the possibilities of observing gamma-ray bursts. My line of reasoning is as follows: 1. Gamma radiation should be absorbed to some extent by dust and other components of the interstellar medium. As a result, with an extragalactic origin, fewer...
View full post »

Similar threads

B Confusion regarding black hole spin
Replies
40
Views
3K
Stargazing Merger of two black holes (video)
Replies
7
Views
3K
B Black hole equivalence
Replies
20
Views
2K
A Black holes: merged remnants have similar spin - why?
Replies
9
Views
2K
I Runaway supermassive black hole?
Replies
1
Views
2K
I Relativistic Doppler Effect near a Black Hole
Replies
2
Views
2K
B Ultramassive Black Hole (UMB), 30 billion solar masses?
Replies
4
Views
2K
I Can Hawking Radiation Exist If Nothing Escapes a Black Hole?
Replies
4
Views
2K
I The initial density of an object and its compression into a black hole
Replies
17
Views
4K
B AI Enhanced image of M87 black hole
Replies
0
Views
2K

Hot Threads

Recent Insights

Back
Top