activity
20152026
most citedThe VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars V. A Characterization of Protostellar Multiplicity

54 citations · 193 across the 11 of their papers we have counts for

collaborators

13 papers

astro-ph.IM2026

Chemical Demographics of Star-forming Regions

Maria N. Drozdovskaya, Timea Csengeri, Maria Teresa Beltrán +35

Our understanding of complex organic chemistry during the formation of stars and planets is shaped by a handful of cherry-picked sources with bright molecular emission lines. This…

astro-ph.IM2026

Bridging the gap between stars and planets

Aina Palau, Dimitris Stamatellos, Matthew Bate +58

The formation mechanisms of brown dwarfs (BDs) and free-floating planets (FFPs) are poorly constrained. The two main competing scenarios include the star-like scenario, where these…

astro-ph.GA2026

A Chemical Inventory of the Disk around the Class 0 Protostar L1527 IRS with ALMA

Merel L. R. van 't Hoff, Łukasz Tychoniec, John J. Tobin +1

Planet formation starts in disks that are still embedded within their natal envelopes. Here, we compile an extensive inventory of the chemical composition of the disk and envelope…

astro-ph.GA2026

Probing the ubiquity of complex ices in protostars with JWST: the first systematic quantification of weak ice bands between 6.8 and 7.9 micron

Yuan Chen, Ewine F. van Dishoeck, Katerina Slavicinska +18

Complex organic molecules (COMs) are the key to understanding the chemical evolution from simple interstellar molecules to potential prebiotic material. Although COMs have been ext…

astro-ph.SR2024★ 15 cited

The Asymmetric Bipolar Fe II Jet and H2 Outflow of TMC1A Resolved with JWST's NIRSpec IFU

Korash Assani, Daniel Harsono, Jon Ramsey +10

(abridged) Protostellar outflows exhibit large variations in their structure depending on the observed gas emission. This study analyzes the atomic jet and molecular outflow in the…

astro-ph.GA2024

JWST/MIRI detection of suprathermal OH rotational emissions: probing the dissociation of the water by Lyman alpha photons near the protostar HOPS 370

David A. Neufeld, P. Manoj, Himanshu Tyagi +22

Using the MIRI/MRS spectrometer on JWST, we have detected pure rotational, suprathermal OH emissions from the vicinity of the intermediate-mass protostar HOPS 370 (OMC2/FIR3). Thes…

astro-ph.GA2024★ 17 cited

ALMA view of the L1448-mm protostellar system on disk scales: CHOH and HCN as new disk wind tracers

P. Nazari, B. Tabone, A. Ahmadi +7

Protostellar disks are known to accrete, however, the exact mechanism that extracts the angular momentum and drives accretion in the low-ionization "dead" region of the disk is und…

astro-ph.SR2022★ 45 cited

The Mass Accretion Rate and Stellar Properties in Class I Protostars

Eleonora Fiorellino, Lukasz Tychoniec, Fernando Cruz-Saenz de Miera +5

Stars collect most of their mass during the protostellar stage, yet the accretion luminosity and stellar parameters, which are needed to compute the mass accretion rate, are poorly…

astro-ph.GA2022★ 9 cited

Disks and Outflows in the Intermediate-mass Star Forming Region NGC 2071 IR

Yu Cheng, John J. Tobin, Yao-Lun Yang +13

We present ALMA band 6/7 (1.3 mm/0.87 mm) and VLA Ka band (9 mm) observations toward NGC 2071 IR, an intermediate-mass star forming region. We characterize the continuum and associ…

astro-ph.GA2021★ 54 cited

The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars V. A Characterization of Protostellar Multiplicity

John J. Tobin, Stella S. R. Offner, Kaitlin M. Kratter +16

We characterize protostellar multiplicity in the Orion molecular clouds using ALMA 0.87~mm and VLA 9~mm continuum surveys toward 328 protostars. These observations are sensitive to…

astro-ph.SR2021

Which molecule traces what: chemical diagnostics of protostellar sources

Łukasz Tychoniec, Ewine F. van Dishoeck, Merel L. R. van 't Hoff +8

The physical and chemical conditions in Class 0/I protostars are fundamental in unlocking the protostellar accretion process and its impact on planet formation. The aim is to deter…

astro-ph.SR2017

Chemical and kinematic complexity of the very young star-forming region Serpens Main observed with ALMA

Łukasz Tychoniec, Charles L. H. Hull, John J. Tobin +1

The youngest low-mass protostars are known to be chemically rich, accreting matter most vigorously, and producing the most powerful outflows. Molecules are unique tracers of these…

astro-ph.SR2015★ 53 cited

High Resolution 8 mm and 1 cm Polarization of IRAS 4A from the VLA Nascent Disk and Multiplicity (VANDAM) Survey

Erin G. Cox, Robert J. Harris, Leslie W. Looney +10

Magnetic fields can regulate disk formation, accretion and jet launching. Until recently, it has been difficult to obtain high resolution observations of the magnetic fields of the…