Katz, Harley
- RUBIES: JWST/NIRSpec Confirmation of an Infrared-luminous, Broad-line Little Red Dot with an Ionized Outflow
2024/03/04 by Wang, Bingjie, de Graaff, Anna, Davies, Rebecca L. +22 · 18 citations
#Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences
- RUBIES: a complete census of the bright and red distant Universe with JWST/NIRSpec
2024/09/09 by Anna de Graaff, de Graaff, Anna, Gabriel Brammer +53 · 21 citations
Engineering · Physics and Astronomy · #Astronomical Observations and Instrumentation #Astronomy and Astrophysical Research #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Stellar, planetary, and galactic studies
- Little Red Dots at an Inflection Point: Ubiquitous "V-Shaped" Turnover Consistently Occurs at the Balmer Limit
2024/11/05 by Setton, David J., Greene, Jenny E., de Graaff, Anna +18 · 16 citations
#Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences
- Nebular dominated galaxies: insights into the stellar initial mass function at high redshift
2023/11/03 by Alex J. Cameron, Cameron, Alex J., Harley Katz +9 · 8 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics and Star Formation Studies #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena
- A remarkable Ruby: Absorption in dense gas, rather than evolved stars, drives the extreme Balmer break of a Little Red Dot at z=3.5
2025/03/20 by de Graaff, Anna, Rix, Hans-Walter, Naidu, Rohan P. +25 · 18 citations
#Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences
- The Sphinx Public Data Release: Forward Modelling High-Redshift JWST Observations with Cosmological Radiation Hydrodynamics Simulations
2023/09/06 by Harley Katz, Katz, Harley, Taysun Kimm +16 · 5 citations
Physics and Astronomy · #Galaxies: Formation, Evolution, Phenomena #Astronomy and Astrophysical Research #Gamma-ray bursts and supernovae
- The Physics of Indirect Estimators of Lyman Continuum Escape and their Application to High-Redshift JWST Galaxies
2023/04/17 by Nicholas Choustikov, Choustikov, Nicholas, Harley Katz +14 · 4 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics and Star Formation Studies #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Gamma-ray bursts and supernovae
- A "Black Hole Star" Reveals the Remarkable Gas-Enshrouded Hearts of the Little Red Dots
2025/03/20 by Naidu, Rohan P., Matthee, Jorryt, Katz, Harley +48 · 12 citations
#Astrophysics of Galaxies (astro-ph.GA) #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #High Energy Astrophysical Phenomena (astro-ph.HE) #Solar and Stellar Astrophysics (astro-ph.SR)
- 21 Balmer Jump Street: The Nebular Continuum at High Redshift and Implications for the Bright Galaxy Problem, UV Continuum Slopes, and Early Stellar Populations
2024/08/06 by Harley Katz, Katz, Harley, Alex J. Cameron +25 · 1 voice · 5 citations
Physics and Astronomy · #Astrophysics of Galaxies (astro-ph.GA) #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences
- The Great Escape: Understanding the Connection Between Lyα Emission and LyC Escape in Simulated JWST Analogues
2024/01/17 by Nicholas Choustikov, Harley Katz, Choustikov, Nicholas +14 · 3 citations
Physics and Astronomy · Engineering · #Galaxies: Formation, Evolution, Phenomena #CCD and CMOS Imaging Sensors #Real-time simulation and control systems
- A black hole in a near-pristine galaxy 700 million years after the Big Bang
2025/05/28 by Maiolino, Roberto, Uebler, Hannah, D'Eugenio, Francesco +36 · 7 citations
#Astrophysics of Galaxies (astro-ph.GA) #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences
- JWST/NIRSpec Observations of High Ionization Emission Lines in Galaxies at High Redshift
2025/05/09 by Mengtao Tang, Dan Stark, Tang, Mengtao +17 · 7 citations
Physics and Astronomy · #Galaxies: Formation, Evolution, Phenomena #Astronomy and Astrophysical Research #Astrophysics and Star Formation Studies
- All the Little Things in Abell 2744: >1000 Gravitationally Lensed Dwarf Galaxies at z=0-9 from JWST NIRCam Grism Spectroscopy
2024/10/02 by Rohan P. Naidu, Jorryt Matthee, Naidu, Rohan P. +65 · 4 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics of Galaxies (astro-ph.GA) #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #Gamma-ray bursts and supernovae #Instrumentation and Methods for Astrophysics (astro-ph.IM) #Stellar, planetary, and galactic studies
- Rising from the ashes: evidence of old stellar populations and rejuvenation events in the very early Universe
2024/07/10 by Callum Witten, Witten, Callum, William McClymont +27 · 2 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Scientific Research and Discoveries #Stellar, planetary, and galactic studies
- Hitting the slopes: A spectroscopic view of UV continuum slopes of galaxies reveals a reddening at z > 9.5
2024/11/21 by Saxena, Aayush, Cameron, Alex J., Katz, Harley +26 · 2 citations
#Astrophysics of Galaxies (astro-ph.GA) #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences
- The Highest-Redshift Balmer Breaks as a Test of ΛCDM
2023/05/24 by Charles L. Steinhardt, Steinhardt, Charles L., Albert Sneppen +9 · 1 citation
Physics and Astronomy · #Galaxies: Formation, Evolution, Phenomena #Astronomy and Astrophysical Research #Cosmology and Gravitation Theories
- Little Red Dots host Black Hole Stars: A unified family of gas-reddened AGN revealed by JWST/NIRSpec spectroscopy
2025/11/26 by de Graaff, Anna, Hviding, Raphael E., Naidu, Rohan P. +34 · 2 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysical Phenomena and Observations #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena
- Breaking Through the Cosmic Fog: JWST/NIRSpec Constraints on Ionizing Photon Escape in Reionization-Era Galaxies
2025/07/01 by Giovinazzo, Emma, Oesch, Pascal A., Weibel, Andrea +15 · 1 citation
#Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences