English
Related papers

Related papers: A Disk-based Dynamical Mass Estimate for the Young…

200 papers

We are studying a class of binary post-AGB stars that seem to be systematically surrounded by equatorial disks and slow outflows. Although the rotating dynamics had only been well identified in three cases, the study of such structures is…

Solar and Stellar Astrophysics · Physics 2018-06-13 V. Bujarrabal , A. Castro-Carrizo , H. Van Winckel , J. Alcolea , C. Sanchez Contreras , M. Santander-Garcia , M. Hillen

Investigating the dynamical evolution of dust grains in proto-planetary disks is a key issue to understand how planets should form. We identify under which conditions dust settling can be constrained by high angular resolution observations…

Earth and Planetary Astrophysics · Physics 2013-03-26 Y. Boehler , A. Dutrey , S. Guilloteau , V. Piétu

The disks that orbit young stars are the essential conduits and reservoirs of material for star and planet formation. Their structures, meaning the spatial variations of the disk physical conditions, reflect the underlying mechanisms that…

Earth and Planetary Astrophysics · Physics 2020-11-11 Sean M. Andrews

Accurate disk mass measurements are necessary to constrain disk evolution and the timescale of planet formation, but such measurements are difficult to make and are very dependent on assumptions. Here we look at the assumption that the disk…

Solar and Stellar Astrophysics · Physics 2023-01-04 Z. Xin , C. C. Espaillat , A. M. Rilinger , A. Ribas , E. Macias

We use extensive global two-dimensional hydrodynamic disk gas+dust simulations with embedded planets, coupled with three dimensional radiative transfer calculations, to model the dust ring and gap structures in the HL Tau protoplanetary…

Earth and Planetary Astrophysics · Physics 2016-02-17 Sheng Jin , Shengtai Li , Andrea Isella , Hui Li , Jianghui Ji

According to the current paradigm of circumstellar disk evolution, gas-rich primordial disks evolve into gas-poor debris disks compose of second-generation dust. To explore the transition between these phases, we searched for $^{12}$CO,…

Solar and Stellar Astrophysics · Physics 2017-11-15 A. Moór , M. Curé , Á. Kóspál , P. Ábrahám , T. Csengeri , C. Eiroa , D. Gunawan , Th. Henning , A. M. Hughes , A. Juhász , N. Pawellek , M. Wyatt

In this era of Gaia and ALMA, dynamical stellar mass measurements provide benchmarks that are independent of observations of stellar characteristics and their uncertainties. These benchmarks can then be used to validate and improve stellar…

We present a spatio-kinematical analysis of the CO~($J$=2$\rightarrow$1) line emission, observed with the Atacama Large Millimter/submillimter Array (ALMA), of the outflow associated with the most massive core, ALMA1, in the 70 $\mu$m dark…

Aims: We aim to use the high spatial resolution of the Atacama Large Millimeter/submillimeter Array (ALMA) to map the flow pattern of molecular gas near DG Tau and its disk, a young stellar object driving a jet and a molecular outflow.…

Solar and Stellar Astrophysics · Physics 2018-11-28 M. Guedel , C. Eibensteiner , O. Dionatos , M. Audard , J. Forbrich , S. Kraus , Ch. Rab , Ch. Schneider , S. Skinner , E. Vorobyov

Planets are supposed to form in circumstellar disks. The gravitational potential of a planet perturbs the disk and leads to characteristic structures, i.e. spiral waves and gaps, in the disk's density profile. We perform a large-scale…

Solar and Stellar Astrophysics · Physics 2012-12-12 Jan Philipp Ruge , Sebastian Wolf , Ana L. Uribe , Hubert H. Klahr

How substructures and disk properties affect dust evolution and the delivery of solids and volatiles into planet-forming regions remains an open question. We present results from tailored dust evolution modeling of the AGE-PRO ALMA large…

Recent observations by the Atacama Large Millimeter/submillimeter Array (ALMA) of disks around young stars revealed distinct asymmetries in the dust continuum emission. In this work we want to study axisymmetric and non-axisymmetric…

Earth and Planetary Astrophysics · Physics 2015-01-28 M. Flock , J. P. Ruge , N. Dzyurkevich , Th. Henning , H. Klahr , S. Wolf

We compute the molecular line emission of massive protostellar disks by solving the equation of radiative transfer through the cores and disks produced by the recent radiation-hydrodynamic simulations of Krumholz, Klein, & McKee. We find…

Astrophysics · Physics 2009-06-23 Mark R. Krumholz , Richard I. Klein , Christopher F. McKee

We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of the dust continuum emission at 1.3 mm and 12CO J=2-1 line emission of the transitional disk around DM Tau. DM Tau's disk is thought to possess a dust-free inner…

Earth and Planetary Astrophysics · Physics 2018-11-28 Tomoyuki Kudo , Jun Hashimoto , Takayuki Muto , Hauyu Baobab Liu , Ruobing Dong , Yasuhiro Hasegawa , Takashi Tsukagoshi , Mihoko Konishi

Despite intensive studies of protoplanetary disks, there is still no reliable way to determine their total mass and their surface density distribution, quantities that are crucial for describing both the structure and the evolution of disks…

Solar and Stellar Astrophysics · Physics 2016-10-26 Anna Miotello , Ewine F. van Dishoeck , Mihkel Kama , Simon Bruderer

We present Atacama Large Millimeter/submillimeter Array (ALMA) gas and dust observations at band 7 (339~GHz: 0.89~mm) of the protoplanetary disk around a very low mass star ZZ~Tau~IRS with a spatial resolution of 0\farcs25. The…

Earth and Planetary Astrophysics · Physics 2021-05-19 Jun Hashimoto , Ruobing Dong , Takayuki Muto

We report ALMA observations in 0.87 mm continuum and $^{12}$CO ($J$ = 3--2) toward a very low-luminosity ($<$0.1 $L_{\odot}$) protostar, which is deeply embedded in one of the densest core MC27/L1521F, in Taurus with an indication of…

We present ALMA Band 6 observations of a complete sample of protoplanetary disks in the young (1-3 Myr) Lupus star-forming region, covering the 1.33 mm continuum and the 12CO, 13CO, and C18O J=2-1 lines. The spatial resolution is 0.25…

‹ Prev 1 3 4 5 6 7 10 Next ›