Search Results - "Herczeg(沈雷歌), Gregory J."
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1
Gaps and Rings in an ALMA Survey of Disks in the Taurus Star-forming Region
Published in The Astrophysical journal (10-12-2018)“…Rings are the most frequently revealed substructure in Atacama Large Millimeter/submillimeter Array (ALMA) dust observations of protoplanetary disks, but their…”
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2
Compact Disks in a High-resolution ALMA Survey of Dust Structures in the Taurus Molecular Cloud
Published in The Astrophysical journal (01-09-2019)“…We present a high-resolution (∼0 12, ∼16 au, mean sensitivity of 50 Jy beam−1 at 225 GHz) snapshot survey of 32 protoplanetary disks around young stars with…”
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3
An ALMA Survey of CO Isotopologue Emission from Protoplanetary Disks in Chamaeleon I
Published in The Astrophysical journal (01-08-2017)“…The mass of a protoplanetary disk limits the formation and future growth of any planet. Masses of protoplanetary disks are usually calculated from measurements…”
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4
An Initial Overview of the Extent and Structure of Recent Star Formation within the Serpens Molecular Cloud Using Gaia Data Release 2
Published in The Astrophysical journal (20-06-2019)“…The dense clusters within the Serpens Molecular Cloud are among the most active regions of nearby star formation. In this paper, we use Gaia DR2 parallaxes and…”
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5
Age Spreads and the Temperature Dependence of Age Estimates in Upper Sco
Published in The Astrophysical journal (20-06-2017)“…Past estimates for the age of the Upper Sco Association are typically 11-13 Myr for intermediate-mass stars and 4-5 Myr for low-mass stars. In this study, we…”
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Dual-wavelength ALMA Observations of Dust Rings in Protoplanetary Disks
Published in The Astrophysical journal (01-07-2020)“…We present new Atacama Large Millimeter/submillimeter Array observations for three protoplanetary disks in Taurus at 2.9 mm and comparisons with previous 1.3…”
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7
The Low-mass Population in the Young Cluster Stock 8: Stellar Properties and Initial Mass Function
Published in The Astrophysical journal (10-02-2017)“…The evolution of H ii regions/supershells can trigger a new generation of stars/clusters at their peripheries, with environmental conditions that may affect…”
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EMPIRICAL ISOCHRONES FOR LOW MASS STARS IN NEARBY YOUNG ASSOCIATIONS
Published in The Astrophysical journal (20-07-2015)“…ABSTRACT Absolute ages of young stars are important for many issues in pre-main-sequence stellar and circumstellar evolution but long have been recognized as…”
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Probing Protoplanetary Disk Winds with C ii Absorption
Published in The Astrophysical journal (01-11-2021)“…Abstract We present an analysis of wind absorption in the C ii λ 1335 doublet toward 40 classical T Tauri stars with archival far-ultraviolet (FUV) spectra…”
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An ALMA Survey of Faint Disks in the Chamaeleon I Star-forming Region: Why Are Some Class II Disks so Faint?
Published in The Astrophysical journal (10-08-2018)“…ALMA surveys of nearby star-forming regions have shown that the dust mass in the disk is correlated with the stellar mass, but with a large scatter. This…”
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11
Revealing Ionization Conditions of Sz 102 with Spatially Resolved [Ne III] Microjets
Published in The Astrophysical journal (01-03-2021)“…Abstract Forbidden neon emission lines from small-scale microjets can probe high-energy processes in low-mass young stellar systems. We obtained spatially…”
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Twenty-five Years of Accretion onto the Classical T Tauri Star TW Hya
Published in The Astrophysical journal (01-10-2023)“…Abstract Accretion plays a central role in the physics that governs the evolution and dispersal of protoplanetary disks. The primary goal of this paper is to…”
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13
Small and Large Dust Cavities in Disks around Mid-M Stars in Taurus
Published in The Astrophysical journal (01-05-2024)“…Abstract High angular resolution imaging by Atacama Large Millimeter/submillimeter Array (ALMA) has revealed the near universality and diversity of…”
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14
The Accretion History of EX Lup: A Century of Bursts, Outbursts, and Quiescence
Published in The Astrophysical journal (01-11-2023)“…Abstract EX Lup is the archetype for the class of young stars that undergoes repeated accretion outbursts of ∼5 mag at optical wavelengths that last for…”
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A Large Double-ring Disk Around the Taurus M Dwarf J04124068+2438157
Published in The Astrophysical journal (01-05-2023)“…Abstract Planet formation imprints signatures on the physical structures of disks. In this paper, we present high-resolution (∼50 mas, 8 au) Atacama Large…”
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THE ERUPTION OF THE CANDIDATE YOUNG STAR ASASSN-15QI
Published in The Astrophysical journal (10-11-2016)“…ABSTRACT Outbursts on young stars are usually interpreted as accretion bursts caused by instabilities in the disk or the star-disk connection. However, some…”
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