Imaging the Water Snowline around Protostars with Water and HCO+ Isotopologues

  title={Imaging the Water Snowline around Protostars with Water and HCO+ Isotopologues},
  author={Merel L. R. van ’t Hoff and Daniel Harsono and Martijn L. van Gelder and Tien-Hao Hsieh and John J. Tobin and S. S. Jensen and Naomi Hirano and Jes K. J{\o}rgensen and Edwin A. Bergin and Ewine F. van Dishoeck},
  journal={The Astrophysical Journal},
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 (≲1000 yr) accretion bursts. In addition, the ability to image water emission makes these sources excellent laboratories to test indirect snowline tracers such as H13CO+. We study the water snowline in five protostellar envelopes in Perseus using a suite of molecular-line observations taken with the Atacama… 


Imaging the water snowline in a protostellar envelope with H$^{13}$CO$^+$
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
Water around IRAS 15398–3359 observed with ALMA
Context. Understanding how protostars accrete their mass is one of the fundamental problems of star formation. High dust column densities and complex kinematical structures make direct observations
The deuterium fractionation of water on solar-system scales in deeply-embedded low-mass protostars
Context. The chemical evolution of water through the star formation process directly affects the initial conditions of planet formation. The water deuterium fractionation (HDO/H2O abundance ratio)
Water and interstellar complex organics associated with the HH 212 protostellar disc
Context. The unprecedented combination of high-sensitivity and high angular resolution provided by the ALMA interferometer allows us to shed light on the processes leading to the formation of the
Missing water in Class I protostellar disks
Context. Water is a key volatile that provides insight into the initial stages of planet formation. The low water abundances inferred from water observations toward low-mass protostellar objects may
ALMA observations of water deuteration: a physical diagnostic of the formation of protostars
Context. How water is delivered to planetary systems is a central question in astrochemistry. The deuterium fractionation of water can serve as a tracer for the chemical and physical evolution of
The ice composition in the disk around V883 Ori revealed by its stellar outburst
Complex organic molecules (COMs), which are the seeds of prebiotic material and precursors of amino acids and sugars, form in the icy mantles of circumstellar dust grains1 but cannot be detected
Subarcsecond resolution observations of warm water toward three deeply embedded low-mass protostars
Context. Water is present during all stages of star formation: as ice in the cold outer parts of protostellar envelopes and dense inner regions of circumstellar disks, and as gas in the envelopes
Molecule sublimation as a tracer of protostellar accretion: Evidence for accretion bursts from high angular resolution C18O images
The accretion histories of embedded protostars are an integral part of descriptions of their physical and chemical evolution. In particular, are the accretion rates smoothly declining from the
The Structure of Protostellar Envelopes Derived from Submillimeter Continuum Images
High dynamic range imaging of submillimeter dust emission from the envelopes of eight young protostars in the Taurus and Perseus star-forming regions has been carried out using the Submillimeter