Circumstellar Disks

Sirius_Alpha · by Sirius_Alpha on Sat Sep 20, 2008 8:20 pm

I've been interested in doing research on protoplanetary disks for a while, especially where there is evidence of current planet formation and or pictures of these disks. Think AB Aur and Beta Pictoris. My notes over protoplanetary disks is very incomplete, and am trying to scrape together the names of any known star with such a disk. So far I have:

Fomalhaut A -- Evidence for a planet. Update: Planet confirmed.
Beta Pictoris -- Evidence for 3 planets. Update: Planet confirmed.
HD 81040 -- Planet detected.
TW Hydrae -- Evidence of one or two planets in formation.
AB Aur -- Possible superjovian/brown dwarf imaged in formation in the disk.
Cha J110913-773444 -- Planemo forming planets?
V866 Sco -- Water vapour detected.
DR Tau -- Water vapour detected.
OTS 44 -- Brown dwarf with disk.
HD 135344 B -- Evidence for planet formation.
AA Tau -- Hydrogen cyanide, acetylene, carbon dioxide, water vapour detected.
SR 21 -- Evidence for planet formation.
Alpha Coronae Borealis
Epsilon Eridani -- One planet, and an unconfirmed planet.
HR 4796 -- Evidence of complex organics in disk. (disputed)
AU Microscopii

I realise that there are probably hundreds or thousands of known stars with protoplanetary disks, but any that anyone here knows of, if you would list them I would be grateful. I suppose debris disks, too. Any would be helpful.

Sirius_Alpha · by Sirius_Alpha on Wed Nov 19, 2008 8:20 pm

If anybody can point me toward more systems with disks, both protoplanetary or debris, it would be very helpful. Also, here's all the systems I've been able to find that exhibit the "Vega phenomenon" (structure in disk pointing to a planet).

AB Aur
Beta Pictoris
Epsilon Eridani
Fomalhaut
HD 32297
HD 107146
HD 135344B
HR 4796A (has companion)
SR 21
TW Hya
Vega

marasama · by marasama on Thu Nov 20, 2008 1:53 am

NGC 1333 IRAS 4 (protostar) + protoplanetary disk
http://adsabs.harvard.edu/abs/1991ApJ...376L..17

L1148-IRS (VeLLO protostar) + accretion disk + envelope
http://arxiv.org/abs/astro-ph/0510501

CFHT-BD-Tau 4 (M7±0.5 BD TTS-type) + suspected planet + accretion disk
http://arxiv.org/abs/astro-ph/0305195

Cha Hα1 (M7.5 BD) + CS disk
http://arxiv.org/abs/astro-ph/0107509

TT Hya / HD 97528 (Algol-type eclipsing interacting binary)
+ circumstellar structure located at L1 & L2
http://xxx.lanl.gov/abs/astro-ph/0611351

49 Ceti (A1V) + dust disk (inner region starts at ~60AU to outer region at ~900AU)
http://xxx.lanl.gov/abs/astro-ph/0701352

IRC +10°216 (carbon star) + circumstellar shell + extended shell
http://xxx.lanl.gov/abs/astro-ph/0608113

LSI +61°303 (gamma-ray binary) A=B0V / B=compact object + CS disk
http://xxx.lanl.gov/abs/astro-ph/0610945

kappa CMa / HD 50013 / HR 2538 (B2IVe or Be star) + CS disk that is probably Keplerian motion
http://xxx.lanl.gov/abs/astro-ph/0611563

IRAS 20126+4104 (intermediate-mass protostar) + CS disk
http://xxx.lanl.gov/abs/astro-ph/0611052

LS I +61 303 (microquasar) + dense CS disk
http://xxx.lanl.gov/abs/astro-ph/0610608

04108+2803B (class I source / TTS) + CS disk
GM Aur (class II source / TTS) + CS disk
http://xxx.lanl.gov/abs/astro-ph/9812194

CoKuTau/4 (M1.5 / TTS) + disk with gaps, suspected protoplanet
GM Aur + disk, disk's edge at ~300AU
HR 4796 A + disk, cleared inner edge at ~65AU
http://arxiv.org/abs/astro-ph/0406445

Legend:
BD = Brown Dwarf
CS disk = CircumStellar Disk
TTS = T Tauri Star

Thought I give you some off-the-wall ones.

Sirius_Alpha · by Sirius_Alpha on Thu Nov 20, 2008 8:19 pm

Thanks!

Lazarus · by Lazarus on Thu Nov 20, 2008 8:56 pm

Regarding the suspected protoplanet at CoKu Tau/4, it turns out that the system is binary, so it turns out a planetary system is not the explanation for the disc being cleared out.

marasama · by marasama on Thu Nov 20, 2008 9:38 pm

Lazarus wrote:Regarding the suspected protoplanet at CoKu Tau/4, it turns out that the system is binary, so it turns out a planetary system is not the explanation for the disc being cleared out.

Back in 2004, now, 4 years later. A bust.

marasama · by marasama on Thu Nov 20, 2008 11:16 pm

CQ Tau (HAe / A1-F5IVe) + CS disk
HD 135344 (HAe / F4V) + CS disk
HD 163296 (HAe / A3Ve) + CS disk
AB Aur (HAe) + disk
HD 100546 (HAe) + disk, outer extent ~500AU
http://xxx.lanl.gov/abs/astro-ph/0608615

IGR J17497-2821 (transient LMXB / hard x-ray transient) A=BHC / B=K giant + cold disk
http://xxx.lanl.gov/abs/astro-ph/0611344

GRO J2058+42 (binary) A=NS / B=Be star + CS disk
http://xxx.lanl.gov/abs/astro-ph/0610887

R126 / HD 37974 / LHA 120-S 127 (B[e] Supergiant) + disk
located in the LMC
http://xxx.lanl.gov/abs/astro-ph/0611764

HD 141569 + CS disk with sprials at 200AU & 325AU
+ possible 2nd companion
+ suspected Saturn-mass planet at 200AU OR suspected planet at 250AU
+ suspected planet at 235AU
This paper also suspected a planet around HR 4796
http://fr.arxiv.org/abs/astro-ph/0506208

IRAS 20126+4104 (protostellar core) + CS disk + jets
http://xxx.lanl.gov/abs/astro-ph/0611559

BP Piscium + CS disk
TYCHO 4144 329 2 + CS disk
http://www.physorg.com/news119113576.html

KH 15D (Spectroscopic Binary) + circumbinary disk
+ possible planet truncation of the disk at ~5AU
http://arxiv.org/abs/astro-ph/0403099
http://arxiv.org/abs/astro-ph/0208203
http://lanl.arxiv.org/abs/astro-ph/0305477

FS Tau (binary)
A
B + edge-on CS disk is around component + HH 157 (jet) with knots
+ also powers a reflection nebula
http://lanl.arxiv.org/abs/astro-ph/0109096

GG Tau (quadruple system)
AA + AB + circumbinary disk
C
B
http://arxiv.org/abs/astro-ph/0204465

Z And (Classical Symbiotic Star binary)
A + accretion disk + B + surrounded in their own nebula
http://xxx.lanl.gov/abs/astro-ph/0610415

HD 190073 (A2IIIe-B9IVep+sh / HAe) + CS disk, possibly a binary
http://xxx.lanl.gov/abs/astro-ph/0610499

IM Lup + disk, rotatin gas disk
NGC 1333 IRAS 2A + possibly disk, possibly envelope, the object is embedded
http://xxx.lanl.gov/abs/astro-ph/0610667

VV Ser (HAe/UX Ori type) + disk + a clump at 12,500AU to the SE + envelope
http://xxx.lanl.gov/abs/astro-ph/0610385

LEGEND:
BHC = Black Hole Candidate
HAe = Herbig Ae star
NS = Neutron Star

Edasich · by Edasich on Sat Nov 22, 2008 6:33 am

This is a very interesting topic. It should become sticky, because the number of proplyd-hosting stars is going to increase very quickly (as well as that of protoplanet-hosting ones according to recent detections).

I will give my contribution to enrich this thread. Smile

Sirius_Alpha · by Sirius_Alpha on Sat Nov 22, 2008 11:49 am

Edasich wrote:This is a very interesting topic. It should become sticky,

An interesting idea. Protoplanetary disks are quite important for planet formation, and you're right, more such systems are being found. And with the detection of planets at Fomalhaut, Beta Pictoris, and HR 8799, planet-forming disks perhaps deserve to have more attention.

Edasich wrote:I will give my contribution to enrich this thread.

Awesome, thanks! Smile

marasama · by marasama on Sat Nov 22, 2008 2:43 pm

Talks about Epsilon Eridani, HD 53143, Fomalhaut, Vega, and
the Asymmetric Resonant Ring of Asteroidal Dust around Earth but not found around Mars
http://xxx.lanl.gov/abs/astro-ph/0610871

SY Cha (TTS) + disk
CR Cha (TTS) + disk
CS Cha (TTS) + disk
DI Cha (TTS) + disk
KG 28 (TTS) + disk
Glass I (binary), A (TTS)+disk, B (TTS)+disk
KG 49 (TTS?) + disk + cold envelope
WW Cha (TTS) + disk
XX Cha (TTS) + disk
T Cha (TTS) + disk
HT Lup (binary), A (TTS)+disk, B (TTS)+disk
GW Lup (TTS) + disk
IM Lup (TTS) + disk, rotating gas disk
RU Lup (TTS) + disk
HK Lup (TTS) + disk
TW Hya (TTS) + disk
UX Ori (HAe) + disk
CQ Tau (HAe) + disk
http://xxx.lanl.gov/abs/astro-ph/0610667

The path of a T Tauri star (still being debated)

TTS region	PTTS	"PTTS gap"	ZAMS region
CTTS ->	PTTS ->	PTTS/ZAMS ->	ZAMS
CTTS -> WTTS ->	PTTS ->	PTTS/ZAMS ->	ZAMS
CTTS -> WTTS -> NTTS ->	PTTS ->	PTTS/ZAMS ->	ZAMS

TTS = T Tauri Star
CTTS = Classical TTS
WTTS = Weak line TTS
NTTS = Naked TTS (the protostar is exposed from the disk and viewable in optical?)
PTTS = Post TTS (most of the disk is gone)
ZAMS = Zero-Age Main Sequence star

Edasich · by Edasich on Sat Nov 22, 2008 3:38 pm

UX Ori (HAe) + disk
CQ Tau (HAe) + disk

Once I found this article discussing about possible existence of substellar companions around these two stars.

Cyclic variability of UX Ori Stars: UX Ori, SV Cep, and RZ Psc

Having analyzed long-term series of photometric observations for UX Ori stars (UX Ori, SV Cep, and RZ Psc), we found evidence of possible periodicities in their variability. Multiperiod variability with a nonlinear interaction of periods (modulation) was suspected in SV Cep. The cyclic variability is probably caused by large-scale nonuniformities in the circumstellar dust disks. The mechanism for the generation of such nonuniformities is assumed to be the interaction of the circumstellar disk with the binary star or a planetary system*.

(*)=Emphasis mine.

Here some parameters:

UX Ori : P= 6.3 years
CQ Tau : P= 30 years?
SV Cep : P₁=5 years P₂=15 years (4-7 AUs)
RZ Psc : 14.6 years

The article is from 1999. A more recent one (2003) seems not discarding this hypothesis:

We present the results of synchronous photometric and polarimetric U BV RI observations of the irregular variable star RZ Psc, acquired at the Crimean Astrophysical Observatory in 1989 2002. The star’s photometric behavior is characterized by short, sporadic Algol-like dimmings. We observed only one deep minimum, with a V amplitude of about 1.5m, during the entire observation time. During this minimum, the star’s linear polarization reached 3.5%. Comparisons with polarization observations of RZ Psc during another deep minimum in 1989 show that the two minima can be described by the same polarization-brightness relation, testifying to an eclipsing nature for the minima. This provides evidence that the optical characteristics of the flattened circumstellar dust envelope that gives rise to the star’s intrinsic polarization have remained virtually unchanged over the last 13 years. We argue that the origin of this stability is the presence of a large dust-free cavity in the central region of the circumstellar dust disk of RZ Psc. The cavity could be associated with binarity of the star or the formation of a planetary system, with most of the dust in the central region of the disk being transformed into large bodies—planetesimals and planets

marasama · by marasama on Sat Nov 22, 2008 7:26 pm

Edasich wrote:Cyclic variability of UX Ori Stars: UX Ori, SV Cep, and RZ Psc

Please use the abstract link. http://adsabs.harvard.edu/abs/1999AstL...25..243R
The direct PDF link can move. To search, just type the key, "harvard" and the title of the paper, 90% guaranteed to find it on Google.

Thanks for the find.

marasama · by marasama on Sat Nov 22, 2008 7:33 pm

Chart fixed.

Lazarus · by Lazarus on Sat Nov 22, 2008 7:41 pm

I'm sure you can get catalogues of debris disk stars, T Tauri stars, etc. from VizieR.

Edasich · by Edasich on Sat Nov 22, 2008 7:42 pm

marasama wrote:Chart fixed.

You can also "right-click-and-save" the link. Razz

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