ABOUT THE SPEAKER
Burçin Mutlu-Pakdil - Astrophysicist
Burçin Mutlu-Pakdil studies the structure and dynamics of galaxies to help us understand how they form and evolve.

Why you should listen

Dr. Burçin Mutlu-Pakdil is searching for the most peculiar objects in the Universe. Her research has led to a discovery of an extremely rare galaxy with a unique circular structure, which is now commonly referred to as Burçin's Galaxy. Her work has provided the first description of a double-ringed elliptical galaxy, challenging current theories and assumptions about how the universe works and how galaxies start and evolve.

Mutlu-Pakdil earned her PhD at the University of Minnesota, and her undergraduate degree is from Bilkent University in Turkey. She is currently a postdoctoral research associate at University of Arizona and a 2018 TED Fellow. She spends most of her time searching for hierarchical structure at the scale of dwarf galaxies as a novel test of the Cold Dark Matter paradigm. She uses data gathered in a large range of wavelengths from premier telescopes worldwide and wants to learn more about how the Universe came to be the way it is today.

Mutlu-Pakdil's findings have been featured by CNN, Science Daily, Astronomy Magazine, Independent and MPR News, among many others. Damon Brown wrote in his regular Inc. Magazine online column: “Many organizations are dedicated to filling the STEM pipeline with more girls and women. Others are supporting the cause by being an example. TED Fellow Burçin is representing by being one of the most notable astrophysicists today.”

More profile about the speaker
Burçin Mutlu-Pakdil | Speaker | TED.com
TED2018

Burçin Mutlu-Pakdil: A rare galaxy that's challenging our understanding of the universe

Burçin Mutlu-Pakdil: Penemuan galaksi langka yang mempertanyakan pemahaman alam semesta kita

Filmed:
2,459,767 views

Bagaimana rasanya menemukan sebuah galaksi -- terlebih lagi diberi nama Anda? Burçin Mutlu-Pakdil, seorang astrofisikawan sekaligus TED Fellow akan menceritakan perasaan tersebut di dalam presentasinya tentang tipe galaksi baru yang ditemukan oleh timnya.
- Astrophysicist
Burçin Mutlu-Pakdil studies the structure and dynamics of galaxies to help us understand how they form and evolve. Full bio

Double-click the English transcript below to play the video.

00:13
There are more than a trilliontriliun
galaxiesgalaksi in the universealam semesta.
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Di alam semesta kita, ada lebih
dari satu triliun galaksi,
00:17
And my teamtim discoveredditemukan
an extremelysangat rarelangka one,
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dan tim saya telah menemukan
galaksi yang sangat langka,
00:21
a galaxygalaksi that doesn't look
quitecukup like anything observeddiamati before.
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tipe galaksi yang belum pernah
ditemukan sebelumnya.
00:27
This galaxygalaksi is so peculiaraneh,
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Galaksi ini sungguh unik,
00:29
that it challengestantangan our theoriesteori
and our assumptionsasumsi
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sampai pemahaman kita atas
alam semesta sejauh ini
00:33
about how the universealam semesta worksbekerja.
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dapat dipertanyakan.
00:37
The majoritymayoritas of the galaxiesgalaksi are spiralspiral,
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Pada umumnya, galaksi berbentuk spiral.
00:40
similarserupa to our ownsendiri MilkySakti Way.
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Bima Sakti juga memenuhi
kriteria itu.
00:42
We have strongkuat theoriesteori about how
these commonumum galaxiesgalaksi formbentuk and evolveberkembang.
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Tentunya sudah banyak teori yang logis
mengenai asal usul galaksi standar.
00:48
But we don't understandmemahami
how rarelangka galaxiesgalaksi formbentuk and evolveberkembang.
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Tetapi hal yang sama tidak dapat dikatakan
untuk galaksi-galaksi yang langka.
00:55
An especiallyterutama puzzlingmembingungkan rarelangka casekasus
is Hoag'sHoag's ObjectObjek.
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Salah satu contoh khusus
adalah Objek Hoag.
01:00
It has a very symmetricsimetris centralpusat bodytubuh
surroundedterkepung by a circularbundar outerluar ringcincin,
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Galaksi ini memiliki pusat simetris
yang dikelilingi oleh sebuah cincin.
01:07
with nothing visibleterlihat connectingmenghubungkan them.
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Namun, sambungan antara keduanya
tidak dapat terlihat.
01:10
Hoag-typeHoag-jenis galaxiesgalaksi are amongantara the rarestpaling langka
typesjenis of galaxiesgalaksi currentlySaat ini knowndikenal.
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Galaksi seperti Objek Hoag termasuk salah
satu tipe galaksi yang terlangka.
01:16
There are fewerlebih sedikit than one
in 1,000 galaxiesgalaksi.
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Di antara seribu galaksi pun belum
tentu ada satu.
01:22
It's a mysteryMisteri how the starsbintang
in the outerluar ringcincin are just floatingmengambang there
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Belum jelas mengapa bintang-bintang dapat
mengapung dan mengelilingi pusatnya
01:28
in suchseperti itu an orderlyteratur mannercara.
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dengan bebas, tapi teratur.
01:30
That's interestingmenarik, right?
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Menarik bukan?
01:33
HoldTerus on.
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Sabar.
01:34
Things are about to get more mysteriousgaib.
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Misterinya tidak berhenti di sini saja.
01:37
The galaxygalaksi that my teamtim
discoveredditemukan is even rarerjarang
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Galaksi yang ditemukan tim saya
lebih langka dari Objek Hoag,
01:41
and much more complexkompleks than that.
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dan jauh lebih rumit.
01:44
You know, sometimesterkadang, you searchpencarian
and searchpencarian for these objectsbenda,
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Lucunya, biasanya ketika kita
mencari hal-hal seperti ini,
01:48
and you find nothing.
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kita tidak dapat
menemukannya.
01:50
But sometimesterkadang, it just appearsmuncul
in the backgroundLatar Belakang,
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Justru cenderung muncul
di latar belakang
01:55
when you are not even looking for it.
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ketika kita sedang mencari
hal-hal lain.
01:58
This systemsistem looksterlihat very similarserupa
to Hoag'sHoag's ObjectObjek,
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Galaksi ini terlihat sangat mirip
dengan Objek Hoag,
02:01
with its centralpusat bodytubuh
and circularbundar outerluar ringcincin.
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karena terbentuk oleh sebuah pusat galaksi
dan cincin yang terpisah.
02:05
We got very excitedgembira and thought
we discoveredditemukan anotherlain Hoag'sHoag's ObjectObjek.
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Kami sangat gembira, karena kami berasumsi
bahwa yang kami temukan adalah Objek Hoag.
02:10
But my researchpenelitian showedmenunjukkan
this is an entirelysepenuhnya newbaru galaxygalaksi typemengetik,
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Tapi setelah saya teliti, ternyata
ini merupakan tipe galaksi yang baru,
02:17
now commonlybiasanya referreddisebut to
as "BurBurçin'sdalam GalaxyGalaxy."
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dan telah diberi nama:
"Galaksi Burcin".
02:21
(LaughsTertawa)
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(Tertawa)
02:23
(CheersBersulang) (ApplauseTepuk tangan)
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(Sorak-sorai) (Tepuk Tangan)
02:27
We will not be visitingmengunjungi
this galaxygalaksi anytimekapan saja soonsegera.
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Galaksi ini tidak akan kita kunjungi
dalam waktu dekat,
02:31
It is approximatelysekitar 359 millionjuta
lightcahaya yearstahun away from EarthBumi.
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karena jaraknya kurang lebih 359 juta
tahun cahaya dari bumi.
02:38
You maymungkin think this is farjauh.
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Orang awam mungkin
merasa ini jauh,
02:40
Well, actuallysebenarnya, this is one
of the nearbydekat galaxiesgalaksi.
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tetapi sebenarnya Galaksi Burcin
termasuk galaksi yang lebih dekat.
02:45
I studybelajar this objectobyek in differentberbeda lightcahaya --
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Saya meneliti galaksi ini
dengan beragam cahaya:
02:48
in ultravioletultraungu, opticaloptik and near-infrareddekat-inframerah.
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Spektrum kasatmata, ultraungu
dan inframerah.
02:53
SmallKecil detailsrincian on our bodytubuh,
like a scarbekas luka or wrinkleskeriput,
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Hal-hal kecil seperti bekas luka
ataupun keriput di badan kita
02:57
tell the storycerita of our liveshidup.
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dapat menjelaskan
kehidupan kita.
02:59
SimilarlyDemikian pula, a galaxy'sGalaxy structurestruktur
in differentberbeda lightcahaya
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Dengan prinsip yang sama, melihat susunan
galaksi melalui cahaya yang berbeda
03:03
can help us tracejejak back
theirmereka originasal and evolutionevolusi.
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dapat menjelaskan asal-usul
beserta perubahannya.
03:07
How do I look for these detailsrincian?
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Nah, bagaimana saya
menemukan hal-hal ini?
03:10
I modelmodel the brightterang centralpusat bodytubuh
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Saya mereplikasikan gambar
keseluruhan galaksinya,
03:13
and removemenghapus my modelmodel from the imagegambar
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lalu menghapus pusat
galaksi dari gambarnya
03:15
to checkmemeriksa for any hiddentersembunyi featuresfitur,
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untuk menemukan ciri-ciri
yang bisa tersembunyi
03:18
because a brightterang structurestruktur in a galaxygalaksi
maymungkin blindbuta our viewspandangan of faintlemah featuresfitur,
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oleh cahaya terang yang terpancar
dari pusat galaksinya.
03:24
just like usingmenggunakan sunglasseskacamata hitam
when you are blindedbuta by the intenseintens lightcahaya.
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Prinsip ini mirip dengan penggunaan
kacamata hitam di hari yang terang.
03:30
The resulthasil was a bigbesar surprisemengherankan.
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Hasilnya sungguh mengejutkan.
03:33
This galaxygalaksi doesn't just
have an outerluar ringcincin,
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Selain cincin luar yang terlihat,
03:37
it has an additionaltambahan, diffuseddisebarkan innerbatin ringcincin.
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ternyata ada cincin redup
di bagian dalam galaksinya.
03:41
We were havingmemiliki a hardkeras time
explainingmenjelaskan the originasal of the outerluar ringcincin
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Keberadaan sebuah cincin di Objek Hoag
dengan sendirinya sudah membingungkan.
03:46
in Hoag-typeHoag-jenis galaxiesgalaksi.
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03:48
Now we alsojuga need to explainmenjelaskan
this mysteriousgaib secondkedua ringcincin.
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Sekarang kita juga harus mempertimbangkan
keberadaan misterius cincin keduanya juga.
03:53
There is currentlySaat ini no knowndikenal mechanismmekanisme
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Saat ini belum ada penjelasan
03:56
that can explainmenjelaskan the existenceadanya of an innerbatin
ringcincin in suchseperti itu a peculiaraneh galaxygalaksi.
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atas bagaimana sebuah cincin kedua dapat
muncul di bagian dalam Objek Hoag.
04:01
So the discoverypenemuan of BurBurçin'sdalam GalaxyGalaxy
clearlyjelas highlightshighlight the gapcelah
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Jadi, penemuan Galaksi Burcin
telah menunjukkan bahwa
04:06
in our knowledgepengetahuan of galaxygalaksi evolutionevolusi.
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pengetahuan kita mengenai galaksi
masih tidak memadai.
04:09
FurtherLebih lanjut researchpenelitian into how
this extremelysangat rarelangka galaxygalaksi was formedterbentuk
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Bila kita meneliti lebih jauh
mengenai galaksi langka ini,
04:14
can providemenyediakan us with newbaru cluespetunjuk
on how the universealam semesta worksbekerja.
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mungkin kita akan lebih mengerti
cara alam semesta berfungsi.
04:21
This discoverypenemuan tellsmengatakan us
that we still have a lot to learnbelajar,
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Penemuan ini menunjukkan bahwa masih
banyak hal yang dapat kita pelajari,
04:25
and we should keep looking
deeperlebih dalam and deeperlebih dalam in spaceruang
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bahwa kita masih dapat menggali
angkasa dengan lebih dalam
04:29
and keep searchingmencari for the unknowntidak diketahui.
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untuk menemukan hal-hal yang
belum kita pahami.
04:32
Thank you.
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Terima kasih.
04:34
(ApplauseTepuk tangan)
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(Tepuk Tangan)
Translated by Mario Varo
Reviewed by Ade Indarta

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ABOUT THE SPEAKER
Burçin Mutlu-Pakdil - Astrophysicist
Burçin Mutlu-Pakdil studies the structure and dynamics of galaxies to help us understand how they form and evolve.

Why you should listen

Dr. Burçin Mutlu-Pakdil is searching for the most peculiar objects in the Universe. Her research has led to a discovery of an extremely rare galaxy with a unique circular structure, which is now commonly referred to as Burçin's Galaxy. Her work has provided the first description of a double-ringed elliptical galaxy, challenging current theories and assumptions about how the universe works and how galaxies start and evolve.

Mutlu-Pakdil earned her PhD at the University of Minnesota, and her undergraduate degree is from Bilkent University in Turkey. She is currently a postdoctoral research associate at University of Arizona and a 2018 TED Fellow. She spends most of her time searching for hierarchical structure at the scale of dwarf galaxies as a novel test of the Cold Dark Matter paradigm. She uses data gathered in a large range of wavelengths from premier telescopes worldwide and wants to learn more about how the Universe came to be the way it is today.

Mutlu-Pakdil's findings have been featured by CNN, Science Daily, Astronomy Magazine, Independent and MPR News, among many others. Damon Brown wrote in his regular Inc. Magazine online column: “Many organizations are dedicated to filling the STEM pipeline with more girls and women. Others are supporting the cause by being an example. TED Fellow Burçin is representing by being one of the most notable astrophysicists today.”

More profile about the speaker
Burçin Mutlu-Pakdil | Speaker | TED.com

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