India's AstroSat Detect A Rare Signal from Space | NASA's Hubble Space Telescope Failed.
Channel: Scientia Plus
Date: 2020-08-26

AstroSat Detected Signal but Hubble couldn't.

00:00 - 00:19 Intro. 
00:19 - 00:44 What is AstroSat?
00:44 - 02:07 The Discovery. 
02:07 - 02:58 How this Discovery is Related to Early Universe?
02:58 - 04:16 What We Can Learn From This Discovery?

In a recent study, a group of astronomers studied a galaxy not too distant from the Earth, using data from AstroSat, India’s first indigenous satellite dedicated to astronomy.
The study, published in the journal Nature Astronomy, was led by Professor Kanak Saha from the Indian University Centre for Astronomy & Astrophysics (IUCAA), Pune. 
The team has laid claim to the discovery of UV light emanating from a galaxy called AUDFs01, which, according to IUCAA, is 9.3 billion light-years away from Earth.
Saha and his team observed the galaxy which is located in the “Hubble Extreme Deep field”, through AstroSat. These observations lasted for 28 hours in October 2016, but

Nasa’s Hubble Space Telescope, significantly larger than AstroSat, has not detected any UV emission from this galaxy.

So, How AstroSat detected the radiation and why Hubble couldn't. Also, what does this discovery tell us about the early universe?

That's the topic for today's video.

If you are interested to know more about the research, check out the paper published in Nature Astronomy: https://www.nature.com/articles/s41550-020-1173-5

Consider Supporting on Patreon: https://www.patreon.com/scientiaplus

Facebook Page: https://www.facebook.com/scientiaplus

FOLLOWED YOUTUBE FAIR USE POLICY WHEN REUSING CONTENT FOR THIS VIDEO.

All Images Used in this Video belongs to the respective owners mentioned within the video.

Image Credits :
ISRO
NASA
IUCAA
Nature Astronomy
Live Mint
Jingchuan Yu, Beijing Planetarium
NASA,
 ESA, A. Fields (STScI)
NOAO
Institute of Astronomy / National Tsing Hua University
NASA/WMAP
Pearson Education
ESA
Dawn K. Erb / Nature
C. Faucher-Giguère, A. Lidz, and L. Hernquist, Science 319, 5859 (47)
NASA / JPL-Caltech / A. Kashlinsky 

Video Credits:
ISRO / Doordarshan
NASA / Hubble Space Telescope


#astrosat #isro #iucaa #AUDFs01 #cosmicradiation #ultravioletimagingtelescope #uvit #uvradiation #hubblespacetelescope #kanaksaha #rarediscovery #bigbang #earlyuniverse #recombination #reionization #space #cosmology #astrophysics #nasa                               
.

ALL THE INFORMATION GIVEN IN THIS VIDEO IS TO THE BEST OF MY KNOWLEDGE. FEEL FREE TO CORRECT ME WITH PROOF IN THE COMMENT SECTION.