we hear palace of the universe and he has
ended where is there any limits when
I was little I still do not have you
sign everything about the universe
namely his training
these different constitutions and the
main question that I asked myself
was like the life she appeared on
earth at the time I thought there
was accurate answers
to all these questions but I can not
just not having them
given that astronomy was a
dom now known in burkina and so
Later I came to
the university of wine must adopt
in fact physics to be able to become
later civil engineer
and that’s it and I confront you with
about the giant physics is too
complicated for a woman and that that
will be difficult for you from your exit there
in and that even I remained of
to become crazy
afterwards since I was
already determined I did not
let influence by these words and
so I continued my paquereau
universities abnormal the compass has me
said when I arrived at my
mastering astronomy had just been
integrated into bukina as raw materials
optional in physics and so I
not hesitate to follow local who
were broadcast dispensed earlier
by Professor Claude Carignan who
seek an astronomer who came from
quebec
I assure you that I have everything and
noise because I had learned in the
blow and that’s where I discovered
that our knowledge of the universe
was still young and evolving with the
time for example it is at the beginning of the 20th
century
astronomers thought that the universe
was limited to our galaxy the way
Milky
beyond which there was no longer
nothing stop everything there he thought
also that the universe was static
that is immutable you do not change
so that’s the story of an evening meal
that in the patina not the same thing
for the present as well as the future
so that’s in the 1929s
as for American astronomers a
wave and oil a bowl observing the
sky with a side the scop discovers
galaxies beyond the milky way
and that’s not all he’s going to be the jersey
who feast on all this is good
faster each other than they
are far in space
it simply means that the
galactic was further away it’s loyen
more quickly than those who
were closer so he’s going to concluded
that the universe is far from static
but would rather be an ex passion and
this discovery will revolutionize the
science world is painted metal of
convent is dominated at other galaxies
afterwards but what does a
galaxy
this image is the image of our galaxy
the Milky Way
I could fuck it’s the system
solar ie our place in
the Galaxy
I’m talking about solar system I’m doing
hint at the sun our planet earth
and the other planets so the system
solar here he places it at 30 years to the
lights from the center of the galaxy
but what is a light year a
light year is the distance
traveled by light in a year
the same when we take the sun
it is located 8 minutes light
only the light by eight minutes of
sun for us to reach sutter so
when we observe the sun we
let’s not see how he is now
but as it was eight minutes ago
and this galaxy we see there
they contain hundreds of
billion canvases like the sun and
our sun is a star of size
mean and if we want to represent
the size of the sun compared to the
earth that’s what it looks like
there we see that the earth is smaller
compared to the sun a size theme
the sun is more than 100 or even
head of the waist and the earth is
our galaxy
as for them contain hundreds
billions of canvases like the sun
so a galati
it’s gigantic
if you take the sun as a point
like that our galaxy it will have n
more than 35 times the size of bukina faso
CGM and the observable universe as to
it contains hundreds of billions
of galaxies
it’s huge the universe is gigantic
but think again that does not represent
more than a movie suffers from the universe the
satellite hand the 2009 c1 allowed us
to plot the different to support
the universe namely 5 or within
the universe would consist of
visible components ie
components consisting of protons
neutrons and electro as I had
previously mentioned
I was talking about galaxies canvases
planet
so all this represents the universe
visible
it represents 5% the remaining 95 %
it consisted of invisible component
who would have gone back there is no
proposal but would have gone back around
24% dark matter and 60 11%
dark energy
we now see at the stage she
invisible component simply
because we do not have much
information about this
component of that we do not manage to
watch
we now see that to understand
the formation and evolution of our
universe it would be very interesting to
understand the invisible components of
our universe and all this gave me
a motivation to continue in the
search by becoming a task and
astrophysical research so after
my mastery I decided to make a
mourning has an applied physics because
that there is no 2 to astrophysics
to bukina leads to pana opportunity
her mourning for two chosen as an option
astrophysical research and that’s what
I did not hesitate to do but my
entourage did not understand my choice of
perm enriched in astrophysics by according
them is a waste of time it is not going
nothing to bring me studied the objects of
the universe will not bring me much
since all the resources are
great and I’m lucky to have two
parents are understanding and who have
always supported in my choices
so when I explained to them my case
that I wanted to continue in the
research as astrophysicists
they told me if you like it why
not the unss must therefore after lack of ja
I was lucky to get a scholarship
to continue my studies in France
precisely in the laboratory
of astrophysics of marseille where I
works with the philippe professor
braem and professor Claude Carignan
and when i arrived in marseille
I first became familiar with at least
research by participating in
missions using the telescope cloud
by learning to reduce and analyze
data
luck smiled me a second point
because I had the chance to get a
cape university funding
town in south africa
and that would allow me to perform
my research include both institutes
ie the laboratory
of astrophysics of Marseille and
cape town university
now as far as my
doctoral thesis topic
as I had heard about the
dark matter of the universe that
accounted for about 24% of the universe
and in his presence his knowledge
could help to know more
the origin of the universe
as well as the origin of the earth I
opted to walk on this
subject of which about thesis
I decided to work on the
distribution of dark matter to
inside galaxies it’s from the
dark matter started in the
1930s 3 when an astronomer
Swiss name leak
I write a student the movement
legalistic inside a lover
discover that galaxies all is
faster than it should and this
is not due to the presence of
visible material in the hand when I
talk about visible matter
I am referring to neutron protons
electrons everything that constitutes the
galaxies the planets and all of us here
In this room
and so
he’s going to conclude that the fact that
galactic was spinning fast to
inside of the hand this is due to
a presence of invisible material but
his discovery was not made at
seriously why if he was not a
good collaboration with his team at
the time felt was not at all he
had to wait thirty years later
that is to say in the 1970s for
that an American scientist by the name
of life rubine studying the cup
of rotation of a galaxy discovers that
galaxies the objects located at
the end of the galaxies all is
faster than those who were located
in the center his discovery does not come into
force with Newton’s law since the
Newton’s law predicts that no longer an object
is close to the center plus he turns over
quickly if we take the case of the system
solar mercury or maybe the
planet earth that is closer to the
sun turns faster than jupiter by
example that more rent so to have
concluded the fate of a matter
invisible that would be causing this
done is now that astronomers
pump breakdown the essences of matter
black seriously why matter
black
simply because it is not
detectable
we can not see it
nevertheless we can study it but
as we studied a subject if we
can not detect it when
observe distant objects containing
a large amount of dark matter
for example the galaxy where clusters of
galaxies
we observe a deformation of the objects
which are in the background and
this is due to the fact that the material
black of life the trajectory of the
light but this is called lens
gravitational and lenses
gravitational allows to determine
the exact amount of dark matter
in space and how she is
distributed
I will take a trivial example
when you put a coin in a
large container of water and that you
observe the piece el al is deformed
this is due to the fact that the trajectory
followed by the light is distorted by
water before reaching our eye here
time is a kind of targeting
so she plays the role of matter
black
this is observed when we observe
objects that goes through a big
amount of dark matter because
that she plays the dark matter of the fon
the trajectory of the light that the
through
we can also determine the
distribution of dark matter to
inside galaxies like peace
you will see rubine using speed
of rotation of the galaxy depending on the
Ray
for example if this image approve it
East
represents the rotation section of the
galaxy and the yellow yard this one of the
visible material
you see well that john court does
not describe the curve is in the
galaxy to include another
matter and this material one does not arrive
not to observe it is the matter
black and that’s my job
Ph.D.
it is a work of pleasure so what is
what I do I use several
methods to determine the
distribution of dark matter to
within galaxies and purpose
it’s to find a standard method
which could be used to
determine the behavior of the
dark matter in all galaxies
and it’s my team and I have
found this case present what there is not
a model who read heaven en bloc all
galaxies
since the guys there if they
do not have the same properties
it’s a bit like humans and go
small there are big and old
there are young kids spend
now in the field of
research
I no longer seek to have
certainties about the issues concerning
the origin of the universe
the origin of the earth ah I see to such
point our universe the left a quad a
mystery that remains to be elucidated
good news
the bookeen to that there is a project
installation of a telescope
search and a team is a team
of astronomers information is so in
coming years
burkina could contribute to
elucidate this mystery of the universe and
maybe bring a acquaintance
as to the origin of our universe
as well as our planet earth
I would like to end up tired of a message
for my young players
I would like to say when you have
ambitions and that you have something
that is important to you that you want
realize not to leave you
influence by your surroundings and even
often by the company I you
thank
”
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