activity
20192026
most citedThe VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars. A Statistical Characterization of Class 0 and I Protostellar Disks

332 citations · 464 across the 11 of their papers we have counts for

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8 papers · 1 filter

astro-ph.SR2026

Direct evidence for magnetohydrodynamic disk winds driving rotating outflows in protostar HOPS 358

Chul-Hwan Kim, Jeong-Eun Lee, Doug Johnstone +4

Angular momentum removal is a fundamental requirement for star and planet formation, yet the mechanisms driving this process remain debated. Magnetohydrodynamic disk winds, launche…

astro-ph.SR2026

Accretion onto the Embedded Protostar L1527 IRS: Insights from JWST NIRSpec and MIRI Observations

W. Blake Drechsler, John J. Tobin, Patrick D. Sheehan +12

Accretion is the primary driver of protostellar evolution, regulating mass assembly and shaping the physical and chemical environments of young stellar objects. Quantifying accreti…

astro-ph.SR2025

L1448 IRS3B: Dust Polarization Aligned with Spiral Features, Tracing Gas Flows

Leslie W. Looney, Zhe-Yu Daniel Lin, Zhi-Yun Li +11

Circumstellar disk dust polarization in the (sub)millimeter is, for the most part, not from dust grain alignment with magnetic fields but rather indicative of a combination of dust…

astro-ph.SR2025

Sub-Millimeter Variability in the Envelope & Warped Protostellar Disk of the Class 0 Protostar HOPS 358

Patrick D. Sheehan, Doug Johnstone, Carlos Contreras Peña +7

The JCMT Transient Survey recently discovered that the Class 0 protostar HOPS 358 decreased in 350 GHz continuum brightness by % over the course of four years before bright…

astro-ph.SR2024★ 1 cited

An Observational View of Structure in Protostellar Systems

John J. Tobin, Patrick D. Sheehan

The envelopes and disks that surround protostars reflect the initial conditions of star and planet formation and govern the assembly of stellar masses. Characterizing these structu…

astro-ph.SR2023

The Disk Orientations of Perseus Protostellar Multiples at 8 au Resolution

Nickalas K. Reynolds, John J. Tobin, Patrick D. Sheehan +6

We present a statistical characterization of circumstellar disk orientations toward 12 protostellar multiple systems in the Perseus molecular cloud using the Atacama Large Millimet…

astro-ph.SR2020★ 84 cited

The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars. III. Substructures in Protostellar Disks

Patrick D. Sheehan, John J. Tobin, Sam Federman +2

The prevalence of substructures in Myr old protoplanetary disks, which are often linked to planet formation, has raised the question of how early such features form, and…

astro-ph.SR2019★ 33 cited

The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars I. Identifying and Characterizing the Protostellar Content of the OMC2-FIR4 and OMC2-FIR3 Regions

John J. Tobin, S. Thomas Megeath, Merel van 't Hoff +31

We present ALMA (0.87~mm) and VLA (9~mm) observations toward OMC2-FIR4 and OMC2-FIR3 within the Orion integral-shaped filament that are thought to be the nearest regions of interme…