William J. Fischer

Space Telescope Science Institute — United States

Physics and Astronomy · Physical Sciences

31h-index3.3kcitations189works9.12yr avg
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Research Topics

Astrophysics and Star Formation Studies(113), Stellar, planetary, and galactic studies(79), Astro and Planetary Science(60), Molecular Spectroscopy and Structure(39), Astronomy and Astrophysical Research(34)

Publications189 total

IPA. Accretion rate of a low-mass Class 0 protostar, measured via mid-infrared fluorescent OH emission
arXiv (Cornell University)·2025Open Access
Investigating the Role of Protostellar Variability with PRIMA Using Monte Carlo Simulations
arXiv (Cornell University)·2025Open Access
HDO Ice Detected toward an Isolated Low-mass Protostar with JWST
The Astrophysical Journal Letters·2025· 5 citedOpen Access
The UV Legacy Library of Young Stars as Essential Standards (ULLYSES) Large Director’s Discretionary Program with Hubble. I. Goals, Design, and Initial Results
The Astrophysical Journal·2025· 14 citedOpen Access
JWST-IPA: Chemical Inventory and Spatial Mapping of Ices in the Protostar HOPS 370—Evidence for an Opacity Hole and Thermal Processing of Ices
The Astrophysical Journal·2025· 4 citedOpen Access
Starspots as an Explanation for the Mysterious IYJ Continuum Excess Emission in Classical T Tauri Stars
The Astrophysical Journal·2024· 5 citedOpen Access
Starspots as an Explanation for the Mysterious IYJ Continuum Excess Emission in Classical T Tauri Stars
arXiv (Cornell University)·2024Open Access
JWST-IPA: Chemical Inventory and Spatial Mapping of Ices in the Protostar HOPS370 -- Evidence for an Opacity Hole and Thermal Processing of Ices
arXiv (Cornell University)·2024Open Access
The exploratory phase for Lifetime Position 7 in the Cosmic Origins Spectrograph FUV channel
2024
A Multiwavelength, Multiepoch Monitoring Campaign of Accretion Variability in T Tauri Stars from the ODYSSEUS Survey. I. HST Far-UV and Near-UV Spectra
The Astrophysical Journal·2024· 11 citedOpen Access
A Multi-wavelength, Multi-epoch Monitoring Campaign of Accretion Variability in T Tauri Stars from the ODYSSEUS Survey. I. HST FUV and NUV Spectra
arXiv (Cornell University)·2024· 1 citedOpen Access
JWST/MIRI Detection of Suprathermal OH Rotational Emissions: Probing the Dissociation of the Water by Lyα Photons near the Protostar HOPS 370
The Astrophysical Journal Letters·2024· 15 citedOpen Access
Investigating Protostellar Accretion-driven Outflows across the Mass Spectrum: JWST NIRSpec Integral Field Unit 3–5 μm Spectral Mapping of Five Young Protostars
The Astrophysical Journal·2024· 38 citedOpen Access
JWST/MIRI detection of suprathermal OH rotational emissions: probing the dissociation of the water by Lyman alpha photons near the protostar HOPS 370
arXiv (Cornell University)·2024Open Access
The Infrared Variability of V1647 Ori over 26 yr with Spitzer, (NEO)WISE, and ISO
Research Notes of the AAS·2024Open Access
JWST observations of <sup>13</sup>CO<sub>2</sub> ice
Astronomy and Astrophysics·2024· 27 citedOpen Access
Discovery of a Collimated Jet from the Low-luminosity Protostar IRAS 16253−2429 in a Quiescent Accretion Phase with the JWST
The Astrophysical Journal Letters·2024· 35 citedOpen Access
Far-infrared Luminosity Bursts Trace Mass Accretion onto Protostars
The Astronomical Journal·2024· 8 citedOpen Access
Data from "Compact Disks in a High-resolution ALMA Survey of Dust Structures in the Taurus Molecular Cloud"
Zenodo (CERN European Organization for Nuclear Research)·2023Open Access
Data from "Compact Disks in a High-resolution ALMA Survey of Dust Structures in the Taurus Molecular Cloud"
Zenodo (CERN European Organization for Nuclear Research)·2023Open Access
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Frequent Co-authors

S. T. Megeath(21), John Tobin(19), D. M. Watson(16), P. Manoj(15), Amelia M. Stutz(15), Elise Furlan(14), Lee Hartmann(14), Mayra Osorio(13), Thomas Stanke(13), Suzan Edwards(12), Gregory J. Herczeg(11), Lynne A. Hillenbrand(11), Nuria Calvet(11), C. A. Poteet(9), Riwaj Pokhrel(9), C. F. Manara(8), Patrick Sheehan(8), Robert Gutermuth(8), Thomas Henning(8), John Kwan(7)