activity
19982026
most citedDynamical evolution of rotating stellar systems - II. Post-collapse, equal mass system

71 citations · 1k across the 64 of their papers we have counts for

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10 papers · 1 filter

astro-ph.SR2026

The FU Ori outburst of PR Ori B

Carlos Contreras Pena, Zsofia Nagy, Gregory Herczeg +42

We report the discovery of a nearby FU Ori-type outburst (FUor), PR Ori B, in the L1641 cluster of the Orion star-forming region. The high-amplitude variability was first identifie…

astro-ph.CO2026

Constructing a Mock Galaxy Catalog for the All-sky SPECtroscopic Survey of Nearby Galaxies (A-SPEC) Using the Machine-assisted Semi-Simulation Model

Dongkok Kim, Yongseok Jo, Ho Seong Hwang +26

We present a methodology for constructing a mock galaxy catalog for the All-sky SPECtroscopic survey of nearby galaxies (A-SPEC) using the Machine-assisted Semi-Simulation Model. T…

astro-ph.GA2026

EPISODE II: Variability in the CO and HO rovibrational absorption lines in a periodically variable protostar EC 53

Seokho Lee, Jeong-Eun Lee, Chul-Hwan Kim +19

We present two-epoch JWST NIRSpec and MIRI observations of the young protostar EC 53 (V371 Ser), a periodically variable source with well-characterized quiescent and burst phases.…

astro-ph.SR2026

Radio Continuum and Water Maser Monitoring of the Outburst in HOPS 373: Free-Free Emission Does Not Respond to the Outburst

John Tobin, Doug Johnstone, Greg Herczeg +5

We present VLA C-band (5~cm) continuum, K-band (1.3~cm) continuum, and water maser (22.235 GHz) monitoring of the protostar HOPS-373. We additionally present the contemporaneous mo…

astro-ph.SR2026

The long-term outburst(s) of GPSV16: from an intermediate to a FUor classification

Carlos Contreras Peña, Jeong-Eun Lee, Philip W. Lucas +8

FU Ori outbursts are thought to play a key role in stellar mass assembly and in the chemistry of protoplanetary disks during the early formation of stars. However, uncertainties re…

astro-ph.GA2026

The SPHEREx Ices Investigation: An Overview

Gary J. Melnick, Joseph L. Hora, Matthew L. N. Ashby +26

SPHEREx is a NASA mission designed to perform an all-sky spectroscopic survey in the 0.75 - 5 m wavelength range. Its primary science objectives are to investigate: (1) inflatio…

astro-ph.GA2026

SPHEREx Wide-Field Infrared Spectral Mapping of Interstellar Ices and Polycyclic Aromatic Hydrocarbons

Joseph L. Hora, Jinyoung K. Noh, Gary J. Melnick +32

We present some of the first infrared spectral maps acquired by SPHEREx. These maps, which to our knowledge are the largest of their type ever compiled in the near-infrared, reveal…

astro-ph.IM2026

Spectral Map Making with SPHEREx

Ari J. Cukierman, Shuang-Shuang Chen, Jae Hwan Kang +24

We present map-making methodologies and preliminary spectral data cubes for SPHEREx, a NASA Explorer mission that launched in March 2025 and has been performing an all-sky near-inf…

astro-ph.IM2026

A New Collision Avoidance Fiber Assignment Algorithm for Robotic Fiber Positioners in Multi-Object Spectroscopy

Minseong Kwon, Ho Seong Hwang, Jong Chul Lee +22

We present a new fiber assignment algorithm for a robotic fiber positioner system in multi-object spectroscopy. Modern fiber positioner systems typically have overlapping patrol re…

astro-ph.GA2026★ 3 cited

Extended Ionized Fe Objects in the UWIFE Survey

Kim Yesol, Koo Bon-Chul, Pyo Tae-Soo +7

We explore systematically the shocked gas in the first Galactic quadrant of the Milky Way using the United Kingdom Infrared Telescope (UKIRT) Wide-field Infrared Survey for Fe+ (UW…