activity
20162026
most citedAccretion Burst Crystallizes Silicates in a Planet-Forming Disk

7 citations · 13 across the 16 of their papers we have counts for

collaborators

16 papers

astro-ph.SR2026

IPA: Morphology and Kinematics of Molecular Hydrogen Winds in Five Young Protostars across the Mass Spectrum Observed with JWST

Himanshu Tyagi, P. Manoj, Mayank Narang +29

Molecular winds may play a key role in governing angular momentum transport and accretion during the early evolution of protostars. We present the morphology and kinematic properti…

astro-ph.EP2026★ 7 cited

Accretion Burst Crystallizes Silicates in a Planet-Forming Disk

Jeong-Eun Lee, Chul-Hwan Kim, Jaeyeong Kim +13

Crystalline silicates form at high temperatures (> 900 K; Fabian et al. 2000; Hallenbeck et al. 1998). Their presence in comets (Hanner et al. 1994; Hayward et al. 2000; Wooden et…

astro-ph.SR2026

EPISODE IV: Ice Inventory in the Envelope of EC 53

Jaeyeong Kim, Jeong-Eun Lee, Chul-Hwan Kim +9

We present the 1.628 m spectra of the young protostar EC 53, obtained with JWST NIRSpec IFU and MIRI MRS during the quiescent and burst phases of its periodic brightness vari…

astro-ph.SR2026★ 1 cited

Investigating the Nested Structure of the Outflow from the Low Luminosity Protostar IRAS 16253-2429 using JWST and ALMA

Mayank Narang, Himanshu Tyagi, Nagayoshi Ohashi +37

Understanding the earliest stage of star and planet formation requires detailed observations to address the connection and interplay between the accretion, outflow and disk evoluti…

astro-ph.SR2026

EPISODE III: The Nested Jet/Outflow Morphology of EC 53 Revealed by JWST and ALMA

Seonjae Lee, Jeong-Eun Lee, Chul-Hwan Kim +8

We present an extensive study of the structure and kinematics of the jet and outflow of EC 53, a Class I protostar with a quasi-periodic variability, using combined James Webb Spac…

astro-ph.SR2026

The Structure and Kinematics of Three Class 0 Protostellar Jets from JWST

Samuel A. Federman, S. Thomas Megeath, Alessio Caratti o Garatti +20

We present observations of jets within 2000 au of three deeply embedded protostars using 2.9-27 micron observations with JWST. These observations show the morphologies and kinemati…

astro-ph.EP2025

CORINOS IV: Quantifying Baseline-Fitting Uncertainties in SO Ice Measurements with JWST/MIRI

Rachel E. Gross, Yao-Lun Yang, L. Ilsedore Cleeves +15

Sulfur dioxide (SO) ice has been tentatively detected in protostellar envelopes, but its reliability as a solid-state sulfur reservoir remains unclear. We present new measureme…

astro-ph.SR2025★ 1 cited

IPA. Accretion rate of a low-mass Class 0 protostar, measured via mid-infrared fluorescent OH emission

Dan M. Watson, Mayank Narang, Caeley V. Pittman +41

The earliest stages of star formation are highlighted by complex interactions between accretion, outflow, and radiative processes, which shape the chemical and physical environment…

astro-ph.IM2025

WFC3/IR Starter Guide

P. R. McCullough, Joel D. Green

In this starter guide, we provide a high-level overview of analysis of WFC3/IR data available from the Mikulski Archive for Space Telescopes (MAST). We intend this guide as a start…

astro-ph.GA2025★ 4 cited

Investigating silicate, carbon, and water in the diffuse interstellar medium: the first shots from WISCI

S. T. Zeegers, Jonathan P. Marshall, Karl D. Gordon +33

The dusty interstellar medium (ISM) of the Milky Way is distributed in a complex, cloudy structure. It is fundamental to the radiation balance within the Milky Way, provides a reac…

astro-ph.EP2025

Sequencing Silicates in the IRS Debris Disk Catalog I: Methodology for Unsupervised Clustering

Cicero X. Lu, Tushar Mittal, Christine H. Chen +10

Debris disks, which consist of dust, planetesimals, planets, and gas, offer a unique window into the mineralogical composition of their parent bodies, especially during the critica…

astro-ph.SR2024

JWST-IPA: Chemical Inventory and Spatial Mapping of Ices in the Protostar HOPS370 -- Evidence for an Opacity Hole and Thermal Processing of Ices

Himanshu Tyagi, Manoj P., Mayank Narang +35

The composition of protoplanetary disks, and hence the initial conditions of planet formation, may be strongly influenced by the infall and thermal processing of material during th…

astro-ph.SR2024

CORINOS II. JWST-MIRI detection of warm molecular gas from an embedded, disk-bearing protostar

Colette Salyk, Yao-Lun Yang, Klaus M. Pontoppidan +8

We present James Webb Space Telescope (JWST) Mid-InfraRed Instrument (MIRI) observations of warm CO and HO gas in emission toward the low-mass protostar IRAS 15398-3359, observ…

astro-ph.SR2024

Why are (almost) all the protostellar outflows aligned in Serpens Main?

Joel D. Green, Klaus M. Pontoppidan, Megan Reiter +4

We present deep 1.4-4.8 um JWST-NIRCam imaging of the Serpens Main star-forming region and identify 20 candidate protostellar outflows, most with bipolar structure and identified d…

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.GA2016

The evolution of far-infrared CO emission from protostars

P. Manoj, J. D. Green, S. T. Megeath +7

We investigate the evolution of far-IR CO emission from protostars observed with Herschel/PACS for 50 sources from the combined sample of HOPS and DIGIT Herschel key programs. From…