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Title: THE NATURE OF TRANSITION CIRCUMSTELLAR DISKS. III. PERSEUS, TAURUS, AND AURIGA

Abstract

As part of an ongoing program aiming to characterize a large number of Spitzer-selected transition disks (disks with reduced levels of near-IR and/or mid-IR excess emission), we have obtained (sub)millimeter wavelength photometry, high-resolution optical spectroscopy, and adaptive optics near-infrared imaging for a sample of 31 transition objects located in the Perseus, Taurus, and Auriga molecular clouds. We use these ground-based data to estimate disk masses, multiplicity, and accretion rates in order to investigate the mechanisms potentially responsible for their inner holes. Following our previous studies in other regions, we combine disk masses, accretion rates, and multiplicity data with other information, such as spectral energy distribution morphology and fractional disk luminosity, to classify the disks as strong candidates for the following categories: grain-growth-dominated disks (seven objects), giant planet-forming disks (six objects), photoevaporating disks (seven objects), debris disks (11 objects), and cicumbinary disks (one object, which was also classified as a photoevaporating disk). Combining our sample of 31 transition disks with those from our previous studies results in a sample of 74 transition objects that have been selected, characterized, and classified in a homogenous way. We discuss this combined high-quality sample in the context of the current paradigm of the evolution andmore » dissipation of protoplanetary disks and use its properties to constrain different aspects of the key processes driving their evolution. We find that the age distribution of disks that are likely to harbor recently formed giant planets favors core accretion as the main planet formation mechanism and a {approx}2-3 Myr formation timescale.« less

Authors:
;  [1]; ; ;  [2];  [3]
  1. Institute for Astronomy, University of Hawaii at Manoa, Honolulu, HI 96822 (United States)
  2. Departamento de Fisica y Astronomia, Universidad de Valparaiso, Valparaiso (Chile)
  3. Herschel Science Centre, ESAC-ESA, P.O. Box 78, 28691 Villanueva de la Canada, Madrid (Spain)
Publication Date:
OSTI Identifier:
22034494
Resource Type:
Journal Article
Journal Name:
Astrophysical Journal
Additional Journal Information:
Journal Volume: 750; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0004-637X
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ABSORPTION SPECTROSCOPY; BINARY STARS; EMISSION SPECTROSCOPY; ENERGY SPECTRA; GRAIN GROWTH; LUMINOSITY; MAIN SEQUENCE STARS; MASS; MORPHOLOGY; MULTIPLICITY; OPTICS; PHOTOMETRY; PHOTON EMISSION; PLANETS; PROTOPLANETS; RESOLUTION; STAR EVOLUTION

Citation Formats

Cieza, Lucas A, Williams, Jonathan P, Schreiber, Matthias R, Romero, Gisela A, Rebassa-Mansergas, Alberto, and Merin, Bruno. THE NATURE OF TRANSITION CIRCUMSTELLAR DISKS. III. PERSEUS, TAURUS, AND AURIGA. United States: N. p., 2012. Web. doi:10.1088/0004-637X/750/2/157.
Cieza, Lucas A, Williams, Jonathan P, Schreiber, Matthias R, Romero, Gisela A, Rebassa-Mansergas, Alberto, & Merin, Bruno. THE NATURE OF TRANSITION CIRCUMSTELLAR DISKS. III. PERSEUS, TAURUS, AND AURIGA. United States. https://doi.org/10.1088/0004-637X/750/2/157
Cieza, Lucas A, Williams, Jonathan P, Schreiber, Matthias R, Romero, Gisela A, Rebassa-Mansergas, Alberto, and Merin, Bruno. 2012. "THE NATURE OF TRANSITION CIRCUMSTELLAR DISKS. III. PERSEUS, TAURUS, AND AURIGA". United States. https://doi.org/10.1088/0004-637X/750/2/157.
@article{osti_22034494,
title = {THE NATURE OF TRANSITION CIRCUMSTELLAR DISKS. III. PERSEUS, TAURUS, AND AURIGA},
author = {Cieza, Lucas A and Williams, Jonathan P and Schreiber, Matthias R and Romero, Gisela A and Rebassa-Mansergas, Alberto and Merin, Bruno},
abstractNote = {As part of an ongoing program aiming to characterize a large number of Spitzer-selected transition disks (disks with reduced levels of near-IR and/or mid-IR excess emission), we have obtained (sub)millimeter wavelength photometry, high-resolution optical spectroscopy, and adaptive optics near-infrared imaging for a sample of 31 transition objects located in the Perseus, Taurus, and Auriga molecular clouds. We use these ground-based data to estimate disk masses, multiplicity, and accretion rates in order to investigate the mechanisms potentially responsible for their inner holes. Following our previous studies in other regions, we combine disk masses, accretion rates, and multiplicity data with other information, such as spectral energy distribution morphology and fractional disk luminosity, to classify the disks as strong candidates for the following categories: grain-growth-dominated disks (seven objects), giant planet-forming disks (six objects), photoevaporating disks (seven objects), debris disks (11 objects), and cicumbinary disks (one object, which was also classified as a photoevaporating disk). Combining our sample of 31 transition disks with those from our previous studies results in a sample of 74 transition objects that have been selected, characterized, and classified in a homogenous way. We discuss this combined high-quality sample in the context of the current paradigm of the evolution and dissipation of protoplanetary disks and use its properties to constrain different aspects of the key processes driving their evolution. We find that the age distribution of disks that are likely to harbor recently formed giant planets favors core accretion as the main planet formation mechanism and a {approx}2-3 Myr formation timescale.},
doi = {10.1088/0004-637X/750/2/157},
url = {https://www.osti.gov/biblio/22034494}, journal = {Astrophysical Journal},
issn = {0004-637X},
number = 2,
volume = 750,
place = {United States},
year = {Thu May 10 00:00:00 EDT 2012},
month = {Thu May 10 00:00:00 EDT 2012}
}