Name: 【TED】Jedidah Isler: How I fell in love with quasars, blazars and our incredible universe (Jedidah Isler: How I fell in love with quasars, blazars and our incredible universe)
Uploaded: 2015-06-04T08:32:45.000Z
Duration: 4 min 20 s
Description: Thousands of YouTube videos with English-Chinese subtitles! Now you can learn to understand native speakers, expand your vocabulary, and improve your pronunciation...

You're looking at a fly-through of the 
Hubble Space Telescope Ultra-Deep Field,

one of the most distant images
of our universe ever observed.

And the farthest galaxy is 
a trillion, trillion kilometers away.

As an astrophysicist, I have
the awesome privilege of studying

some of the most exotic objects 
in our universe.

The objects that have captivated me 
from first crush throughout my career

are supermassive, 
hyperactive black holes.

Weighing one to 10 billion times 
the mass of our own sun,

these galactic black holes 
are devouring material,

at a rate of upwards of 
1,000 times more

than your "average" 
supermassive black hole.

are producing some of the most
powerful particle streams

are moving at 99.99 percent 
of the speed of light,

These jetted, Earth-pointed, hyperactive
and supermassive black holes

What makes blazars so special
is that they're some of the universe's

transporting incredible amounts
of energy throughout a galaxy.

Here, I'm showing an
artist's conception of a blazar.

The dinner plate by which 
material falls onto the black hole

Some of that material is slingshotted
around the black hole

the process by which nature
pulls in material via a disk,

and then flings some of it out via a jet,
is more common.

We'll eventually zoom out of 
the blazar system

to show its approximate relationship
to the larger galactic context.

Beyond the cosmic accounting
of what goes in to what goes out,

one of the hot topics in 
blazar astrophysics right now

is where the highest-energy 
jet emission comes from.

In this image, I'm interested
in where this white blob forms

and if, as a result, there's any 
relationship between the jet

were almost completely
inaccessible until 2008,

when NASA launched a new telescope
that better detects gamma ray light --

that is, light with energies
a million times higher

I simultaneously compare variations
between the gamma ray light data

and the visible light data from
day to day and year to year,

to better localize these gamma ray blobs.

My research shows that in some instances,

these blobs form much closer
to the black hole

where these gamma ray 
blobs are forming,

we can better understand how jets
are being accelerated,

and ultimately reveal 
the dynamic processes

by which some of the most fascinating
objects in our universe are formed.

This love transformed me from 
a curious, stargazing young girl

would ground me so deeply
to my mission here on Earth.

Then again, when do we ever know
where love's first flutter

【TED】Jedidah Isler: How I fell in love with quasars, blazars and our incredible universe (Jedidah Isler: How I fell in love with quasars, blazars and our incredible universe)