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Related papers: Imaging the water snowline in protostellar envelop…

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Snowlines are key ingredients for planet formation. Providing observational constraints on the locations of the major snowlines is therefore crucial for fully connecting planet compositions to their formation mechanism. Unfortunately, the…

The water snowline location in protostellar envelopes provides crucial information about the thermal structure and the mass accretion process as it can inform about the occurrence of recent ($\lesssim$1,000 yr) accretion bursts. In…

[Abridged] Planet formation is expected to be enhanced around snowlines in protoplanetary disks, in particular around the water snowline. However, the close proximity of the water snowline to the host star and water in the Earth's…

Earth and Planetary Astrophysics · Physics 2021-02-03 M. Leemker , M. L. R. van 't Hoff , L. Trapman , M. L. van Gelder , M. R. Hogerheijde , D. Ruíz-Rodríguez , E. F. van Dishoeck

The water snowline in circumstellar disks is a crucial component in planet formation, but direct observational constraints on its location remain sparse due to the difficulty of observing water in both young embedded and mature…

Solar and Stellar Astrophysics · Physics 2022-04-20 Merel L. R. van 't Hoff , Margot Leemker , John J. Tobin , Daniel Harsono , Jes K. Jørgensen , Edwin A. Bergin

Inside the H$_{2}$O snowline of protoplanetary disks, water evaporates from the dust-grain surface into the gas phase, whereas it is frozen out on to the dust in the cold region beyond the snowline. H$_{2}$O ice enhances the solid material…

Earth and Planetary Astrophysics · Physics 2016-08-24 Shota Notsu , Hideko Nomura , Daiki Ishimoto , Catherine Walsh , Mitsuhiko Honda , Tomoya Hirota , T. J. Millar

Molecular snow lines in protoplanetary disks have been studied theoretically for decades because of their importance in shaping planetary architectures and compositions. The water snow line lies in the planet formation region at < 10 AU,…

Earth and Planetary Astrophysics · Physics 2015-12-16 Andrea Banzatti , Paola Pinilla , Luca Ricci , Klaus M. Pontoppidan , Til Birnstiel , Fred Ciesla

Water is one of the central molecules for the formation and habitability of planets. In particular, the region where water freezes-out, the water snowline, could be a favorable location to form planets in protoplanetary disks. We use high…

Earth and Planetary Astrophysics · Physics 2026-02-13 M. Leemker , S. Facchini , P. Curone , L. Rampinelli , M. Benisty , A. Garufi , E. Humphreys

A snow-line is the region of a protoplanetary disk at which a major volatile, such as water or carbon monoxide, reaches its condensation temperature. Snow-lines play a crucial role in disk evolution by promoting the rapid growth of…

Observationally measuring the location of the H$_{2}$O snowline is crucial for understanding the planetesimal and planet formation processes, and the origin of water on Earth. In disks around Herbig Ae stars ($T_{\mathrm{*}}\sim$ 10,000K,…

Earth and Planetary Astrophysics · Physics 2017-02-22 Shota Notsu , Hideko Nomura , Daiki Ishimoto , Catherine Walsh , Mitsuhiko Honda , Tomoya Hirota , T. J. Millar

[Abridged] Snowlines in protoplanetary disks play an important role in planet formation and composition. Since the CO snowline is difficult to observe directly with CO emission, its location has been inferred in several disks from spatially…

Solar and Stellar Astrophysics · Physics 2017-03-15 Merel L. R. van 't Hoff , Catherine Walsh , Mihkel Kama , Stefano Facchini , Ewine F. van Dishoeck

Abridged Context: Snowlines during star and disk formation are responsible for a range of effects during the evolution of protostars, such as setting the chemical composition of the envelope and disk. This in turn influences the formation…

Solar and Stellar Astrophysics · Physics 2022-09-14 Nadia M. Murillo , Tien-Hao Hsieh , Catherine Walsh

How protostars accrete mass is one of the fundamental problems of star formation. High column densities and complex kinematical structures make direct observations challenging and they only provide a snapshot. Chemical tracers provide an…

Context. "Snow lines", marking regions where abundant volatiles freeze out onto the surface of dust grains, play an important role for planet growth and bulk composition in protoplanetary disks. They can already be observed in the envelopes…

Astrophysics of Galaxies · Physics 2016-06-08 S. Anderl , S. Maret , S. Cabrit , A. Belloche , A. J. Maury , Ph. André , C. Codella , A. Bacmann , S. Bontemps , L. Podio , F. Gueth , E. Bergin

Observations of CO isotopologue emission from protoplanetary disks at millimeter wavelengths are a powerful tool for probing the CO snowline, an important marker for disk chemistry, and also for estimating total disk gas mass, a key…

Earth and Planetary Astrophysics · Physics 2024-12-05 Chunhua Qi , David J. Wilner

The water snowline in protoplanetary disks is one of the most pivotal locations for planet formation: it sets a critical boundary of chemical composition in the disk and likely serves as a favorable site of planetesimal growth and planet…

Earth and Planetary Astrophysics · Physics 2018-10-17 Ke Zhang , Edwin A. Bergin , Jonathan P. Williams , Sean M. Andrews

The composition of a forming planet is set by the material it accretes from its parent protoplanetary disk. Therefore, it is crucial to map the chemical make-up of the gas in disks to understand the chemical environment of planet formation.…

Earth and Planetary Astrophysics · Physics 2023-10-18 Alice S. Booth , Charles J. Law , Milou Temmink , Margot Leemker , Enrique Macias

The condensation fronts (snow lines) of H2O, CO and other abundant volatiles in the midplane of a protoplanetary disk affect several aspects of planet formation. Locating the CO snow line, where the CO gas column density is expected to drop…

CO is commonly used as a tracer of the total gas mass in both the interstellar medium and in protoplanetary disks. Recently there has been much debate about the utility of CO as a mass tracer in disks. Observations of CO in protoplanetary…

Earth and Planetary Astrophysics · Physics 2018-04-11 Kamber R. Schwarz , Edwin A. Bergin , L. Ilsedore Cleeves , Ke Zhang , Karin I. Öberg , Geoffrey A. Blake , Dana Anderson

Tracing the water snowline in low-mass young stellar objects (YSOs) is important because dust grain growth is promoted and the chemical composition varies at the water snowline, which influences planet formation and its properties. In…

Solar and Stellar Astrophysics · Physics 2025-10-17 Young-Jun Kim , Jeong-Eun Lee , Giseon Baek , Seokho Lee

Measurements of the gas mass are necessary to determine the planet formation potential of protoplanetary disks. Observations of rare CO isotopologues are typically used to determine disk gas masses; however, if the line emission is…

Earth and Planetary Astrophysics · Physics 2019-09-25 Alice S. Booth , Catherine Walsh , John D. Ilee , Shota Notsu , Chunhua Qi , Hideko Nomura , Eiji Akiyama
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