The First 40 Million Years of Circumstellar Disk Evolution: The Signature of Terrestrial Planet Formation

Huan Y.A. Meng, George H. Rieke, Kate Y.L. Su, András Gáspár

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We characterize the first 40 Myr of evolution of circumstellar disks through a unified study of the infrared properties of members of young clusters and associations with ages from 2 Myr up to ∼40 Myr: NGC 1333, NGC 1960, NGC 2232, NGC 2244, NGC 2362, NGC 2547, IC 348, IC 2395, IC 4665, Chamaeleon I, Orion OB1a and OB1b, Taurus, the β Pictoris Moving Group, ρ Ophiuchi, and the associations of Argus, Carina, Columba, Scorpius-Centaurus, and Tucana-Horologium. Our work features: (1) a filtering technique to flag noisy backgrounds; (2) a method based on the probability distribution of deflections, P(D), to obtain statistically valid photometry for faint sources; and (3) use of the evolutionary trend of transitional disks to constrain the overall behavior of bright disks. We find that the fraction of disks three or more times brighter than the stellar photospheres at 24 μm decays relatively slowly initially and then much more rapidly by ∼10 Myr. However, there is a continuing component until ∼35 Myr, probably due primarily to massive clouds of debris generated in giant impacts during the oligarchic/chaotic growth phases of terrestrial planets. If the contribution from primordial disks is excluded, the evolution of the incidence of these oligarchic/chaotic debris disks can be described empirically by a log-normal function with the peak at 12-20 Myr, including ∼13% of the original population, and with a post-peak mean duration of 10-20 Myr.

Original languageEnglish (US)
Article number34
JournalAstrophysical Journal
Volume836
Issue number1
DOIs
StatePublished - Feb 10 2017

Fingerprint

terrestrial planets
planet
signatures
deflection
debris
photosphere
photometry
incidence
trends
decay
young
method
trend
distribution

Keywords

  • circumstellar matter
  • infrared: planetary systems
  • methods: observational

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

The First 40 Million Years of Circumstellar Disk Evolution : The Signature of Terrestrial Planet Formation. / Meng, Huan Y.A.; Rieke, George H.; Su, Kate Y.L.; Gáspár, András.

In: Astrophysical Journal, Vol. 836, No. 1, 34, 10.02.2017.

Research output: Contribution to journalArticle

@article{b199c0909ecf4d649816ea2b6325d220,
title = "The First 40 Million Years of Circumstellar Disk Evolution: The Signature of Terrestrial Planet Formation",
abstract = "We characterize the first 40 Myr of evolution of circumstellar disks through a unified study of the infrared properties of members of young clusters and associations with ages from 2 Myr up to ∼40 Myr: NGC 1333, NGC 1960, NGC 2232, NGC 2244, NGC 2362, NGC 2547, IC 348, IC 2395, IC 4665, Chamaeleon I, Orion OB1a and OB1b, Taurus, the β Pictoris Moving Group, ρ Ophiuchi, and the associations of Argus, Carina, Columba, Scorpius-Centaurus, and Tucana-Horologium. Our work features: (1) a filtering technique to flag noisy backgrounds; (2) a method based on the probability distribution of deflections, P(D), to obtain statistically valid photometry for faint sources; and (3) use of the evolutionary trend of transitional disks to constrain the overall behavior of bright disks. We find that the fraction of disks three or more times brighter than the stellar photospheres at 24 μm decays relatively slowly initially and then much more rapidly by ∼10 Myr. However, there is a continuing component until ∼35 Myr, probably due primarily to massive clouds of debris generated in giant impacts during the oligarchic/chaotic growth phases of terrestrial planets. If the contribution from primordial disks is excluded, the evolution of the incidence of these oligarchic/chaotic debris disks can be described empirically by a log-normal function with the peak at 12-20 Myr, including ∼13{\%} of the original population, and with a post-peak mean duration of 10-20 Myr.",
keywords = "circumstellar matter, infrared: planetary systems, methods: observational",
author = "Meng, {Huan Y.A.} and Rieke, {George H.} and Su, {Kate Y.L.} and Andr{\'a}s G{\'a}sp{\'a}r",
year = "2017",
month = "2",
day = "10",
doi = "10.3847/1538-4357/836/1/34",
language = "English (US)",
volume = "836",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "1",

}

TY - JOUR

T1 - The First 40 Million Years of Circumstellar Disk Evolution

T2 - The Signature of Terrestrial Planet Formation

AU - Meng, Huan Y.A.

AU - Rieke, George H.

AU - Su, Kate Y.L.

AU - Gáspár, András

PY - 2017/2/10

Y1 - 2017/2/10

N2 - We characterize the first 40 Myr of evolution of circumstellar disks through a unified study of the infrared properties of members of young clusters and associations with ages from 2 Myr up to ∼40 Myr: NGC 1333, NGC 1960, NGC 2232, NGC 2244, NGC 2362, NGC 2547, IC 348, IC 2395, IC 4665, Chamaeleon I, Orion OB1a and OB1b, Taurus, the β Pictoris Moving Group, ρ Ophiuchi, and the associations of Argus, Carina, Columba, Scorpius-Centaurus, and Tucana-Horologium. Our work features: (1) a filtering technique to flag noisy backgrounds; (2) a method based on the probability distribution of deflections, P(D), to obtain statistically valid photometry for faint sources; and (3) use of the evolutionary trend of transitional disks to constrain the overall behavior of bright disks. We find that the fraction of disks three or more times brighter than the stellar photospheres at 24 μm decays relatively slowly initially and then much more rapidly by ∼10 Myr. However, there is a continuing component until ∼35 Myr, probably due primarily to massive clouds of debris generated in giant impacts during the oligarchic/chaotic growth phases of terrestrial planets. If the contribution from primordial disks is excluded, the evolution of the incidence of these oligarchic/chaotic debris disks can be described empirically by a log-normal function with the peak at 12-20 Myr, including ∼13% of the original population, and with a post-peak mean duration of 10-20 Myr.

AB - We characterize the first 40 Myr of evolution of circumstellar disks through a unified study of the infrared properties of members of young clusters and associations with ages from 2 Myr up to ∼40 Myr: NGC 1333, NGC 1960, NGC 2232, NGC 2244, NGC 2362, NGC 2547, IC 348, IC 2395, IC 4665, Chamaeleon I, Orion OB1a and OB1b, Taurus, the β Pictoris Moving Group, ρ Ophiuchi, and the associations of Argus, Carina, Columba, Scorpius-Centaurus, and Tucana-Horologium. Our work features: (1) a filtering technique to flag noisy backgrounds; (2) a method based on the probability distribution of deflections, P(D), to obtain statistically valid photometry for faint sources; and (3) use of the evolutionary trend of transitional disks to constrain the overall behavior of bright disks. We find that the fraction of disks three or more times brighter than the stellar photospheres at 24 μm decays relatively slowly initially and then much more rapidly by ∼10 Myr. However, there is a continuing component until ∼35 Myr, probably due primarily to massive clouds of debris generated in giant impacts during the oligarchic/chaotic growth phases of terrestrial planets. If the contribution from primordial disks is excluded, the evolution of the incidence of these oligarchic/chaotic debris disks can be described empirically by a log-normal function with the peak at 12-20 Myr, including ∼13% of the original population, and with a post-peak mean duration of 10-20 Myr.

KW - circumstellar matter

KW - infrared: planetary systems

KW - methods: observational

UR - http://www.scopus.com/inward/record.url?scp=85014317475&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85014317475&partnerID=8YFLogxK

U2 - 10.3847/1538-4357/836/1/34

DO - 10.3847/1538-4357/836/1/34

M3 - Article

AN - SCOPUS:85014317475

VL - 836

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 1

M1 - 34

ER -