Co ela ion in he emission o ca bon-bea ing species
wi h dynamical s a e o p o oplane a y disks
Felipe Ala cón Peña
Pos doc o al Resea che - UNVEIL ERC S G G oup
ESO - 12/03/2025
Öbe g & Be gin 2020
The e a e majo p ocesses occu ing
du ing s a and plane o ma ion.
The main esea ch goals a e:
● Unde s and such changes and
p ocesses.
● Cha ac e ize he chemical
composi ion in ci cums ella
ma e ial.
● Is he e some key ea u e ha
we can de ec and link o gas
gian s o e es ial wo ld
composi ion?
● Linking dynamics and
chemis y.
Unde s anding chemis y in plane o ma ion?
Öbe g & Be gin 2020
The e a e majo p ocesses occu ing
du ing s a and plane o ma ion.
The main esea ch goals a e:
● Unde s and such changes and
p ocesses.
● Cha ac e ize he chemical
composi ion in ci cums ella
ma e ial.
● Is he e some key ea u e ha
we can de ec and link o gas
gian s o e es ial wo ld
composi ion?
● Linking dynamics and
chemis y.
Unde s anding chemis y in plane o ma ion?
In oduc ion
Subs uc u es and asymme ies in pa icula a e somewha
common in p o oplane a y disks.
In he dus emission:
1. Spi als
2. Rings
3. Ho seshoes
4. Dus Clumps
And ews 2020
In oduc ion
Subs uc u es and asymme ies in pa icula a e somewha
common in p o oplane a y disks.
In line emission(gas):
HD 100546, Boo h+2024, Leemke +2024
In oduc ion
Subs uc u es and asymme ies in pa icula a e somewha
common in p o oplane a y disks.
In line emission(gas):
IRS 48, Boo h+2024
Is i hen na u al o ask i dynamically ac i e/exci ed disks
may ha e consequences o oo p in s in he disk chemical
e olu ion.
WHY?
Dynamically ac i e disks imply:
1. The p esence o addi ional hea ing sou ces.
2. T anspo o ma e ial/ chemical mixing.
3. Ab up and sudden changes in he physical pa ame e s
(Tempe a u e, Radia ion Fields, Densi y).
Explo ing he link using he ExoALMA sample
The ExoALMA eam
epo ed he le el o
asymme y in he
dus con inuum da a.
We used ancilla y
da a o measu e he
le el o asymme y in
he gas emission by
looking a a chemical
ace .
Explo ing he link using he ExoALMA sample
The ExoALMA eam
epo ed he le el o
asymme y in he
dus con inuum da a.
We used ancilla y
da a o measu e he
le el o asymme y in
he gas emission by
looking a a chemical
ace .
1. By ha ing mul iple lines we can e ie e he physical
condi ions o he gas by using o a ional diag ams.
2. We use MCMC i ing o e ie e bo h, he column densi y
and o a ional empe a u e in wo adial bins.
1) Compa ing Physical P ope ies
1. By ha ing mul iple lines we can e ie e he physical
condi ions o he gas by using o a ional diag ams.
2. We use MCMC i ing o e ie e bo h, he column densi y
and o a ional empe a u e in wo adial bins.
3. We hen look o co ela ion be ween disk physical
p ope ies and hose e ie e in he gas, also conside ing
he le el o asymme y.
1) Compa ing Physical P ope ies
Re ie ed Tempe a u es
Re ie ed Column Densi ies
Wha abou compa isons wi h he s a & disk?
I we ake a close look a
di e en pa ame e s, we
see ha he exci a ion
empe a u e seems o
ollow a co ela ion wi h he
e ec i e empe a u e (and
luminosi y).
T ansla ing: The emission
o H2CO seems o be
d i en by he luminosi y o
he hos s a in he disk.
Co ela ion plo s
T ends so a …
1. No s a is ical di e ences be ween inne and ou e egions
o disks, based on da a sensi i i y.
2. Column densi ies all o oughly ~⅓ o he column
densi ies in he inne 100 au.
3. S ella e ec i e empe a u e seem o d i e he exci a ion
o o maldehyde in he inne 100 au o disks.
4. No s ong co ela ion was ound wi h o he known s ella
pa ame e s.
2) Compa ing Non-Axisymme ic Indices
We compa e he Non-Axisymme ic Index(NAI) epo ed by
he ExoALMA su ey (Cu one+) wi h he one calcula ed om
he H2CO emission.
2) Compa ing Non-Axisymme ic Indices
We compa e he Non-Axisymme ic Index(NAI) epo ed by
he ExoALMA su ey (Cu one+) wi h he one calcula ed om
he H2CO emission.
Conclusions
● The NAI does no show s ong co ela ion wi h he
explo ed physical pa ame e s.
● Fo maldehyde emission aces di e en gas ese oi s
based on he s ella e ec i e empe a u e
● The spa ial dis ibu ion o o maldehyde is s ill in iguing.
In some cases i shows s ong emission an ico ela ed
wi h he loca ion o dus aps, while in o he cases i
shows he opposi e beha io , i.e., no emission a all a
he loca ion o dus aps.
