activity
20212026
most citedX-ray Simulations of Polar Gas in Accreting Supermassive Black Holes

8 citations · 14 across the 14 of their papers we have counts for

collaborators

15 papers

astro-ph.IM2026

The Accretion Explorer Interferometer (AEI) Phase I NASA Innovative Advanced Concepts Final Report

Kimberly A. Weaver, Jenna M. Cann, Kenneth Carpenter +30

We must create superb X-ray images to understand the detailed physical processes behind some of the most powerful astronomical objects. The need to achieve this capability has been…

astro-ph.HE2026

Science of High Resolution X-ray Imaging

H. L. Marshall, K. Weaver, M. Schattenburg +34

This report summarizes potential studies of the Hi-ReX Science Analysis Group for an Ultra-High Angular Resolution X-ray Observatory. Many potential science cases are presented, sp…

astro-ph.GA2026

JWST Reveals Compact Nuclear Starbursts Masquerading as AGNs in Metal-Poor Dwarfs: Where Are the Accreting Intermediate-Mass Black Holes?

William Matzko, Shobita Satyapal, Jeffrey D. Mckaig +19

We present JWST/NIRSpec spectroscopy of the low-mass, metal-poor galaxy SDSS~J160135.95+311353.7 (J1601), selected for its extreme mid-infrared colors and compact nuclear emission,…

astro-ph.GA2026

AGN versus Star-formation: A MUSE Analysis of NGC 1365

Kyla Mullaney, Kelly E. Whalen, Jenna Cann +3

Active galactic nuclei (AGN) and star formation feedback may heat and remove gas from galaxies in a process that quenches ongoing star formation and shapes the evolution of galaxie…

astro-ph.HE2026

The Need for Ultra High Resolution X-ray Imaging

Kimberly A. Weaver, Jenna M. Cann, Ryan Pfeifle +20

This paper discusses the broad science case for obtaining milliarcsecond to microarcsecond astronomical imaging resolution in the soft to medium-energy X-ray band (~0.5 to ~8 keV).…

astro-ph.GA2025

The SDSS-V Black Hole Mapper Reverberation Mapping Project: Light Echoes of the Coronal Line Region in a Luminous Quasar

Theodore B. Smith, Logan B. Fries, Jonathan R. Trump +19

We present a reverberation mapping analysis of the coronal line [Ne V]3427 emitting region of the quasar COS168 (SDSS J095910.30+020732.2). [Ne V]3427 is known as one of the…

astro-ph.GA2025

Discovery of Multiply Ionized Iron Emission Powered by an Active Galactic Nucleus in a z~7 Little Red Dot

Erini Lambrides, Rebecca Larson, Taylor Hutchison +50

Some of the most puzzling discoveries of NASA's JWST in the early Universe surround the surprising abundance of compact red sources, which show peculiar continuum shapes and broad…

astro-ph.GA2025

A High Resolution Search for Dual AGN Candidates in Mergers: A Pre-Selection Strategy using Keck AO

Camilo Vazquez, S. Satyapal, G. Canalizo +20

Accreting supermassive black holes (SMBHs) in galaxy mergers with separations 1 kpc are crucial to our understanding of SMBH growth, galaxy evolution, and SMBH binary evolution…

astro-ph.GA2025

An Increase in the Prevalence of Ionized Outflows in Galaxies with Coronal Line Emission: Feedback in Action?

William Matzko, Shobita Satyapal, Michael Reefe +3

Coronal lines (CLs), which arise from collisionally excited forbidden transitions from highly ionized species, are a powerful diagnostic tool in uncovering active galactic nuclei (…

astro-ph.GA2025

The CLASS Quasar Catalog: Coronal Line Activity in Type 1 SDSS Quasars

Sara Doan, Shobita Satyapal, Michael Reefe +7

We conduct the first systematic survey of a total of eleven optical coronal lines in the spectra of a large sample of low redshift (z < 0.8) Type 1 quasars observed by the Sloan Di…

astro-ph.GA2024

Why are optical coronal lines faint in active galactic nuclei?

Jeffrey D. McKaig, Shobita Satyapal, Ari Laor +4

Forbidden collisionally excited optical atomic transitions from high ionization potential (IP54.8\,eV) ions, such as Ca, Ne, Fe$^{\mathrm{6+}}…

astro-ph.GA2024★ 1 cited

Local Analogs of Primordial Galaxies: In Search of Intermediate Mass Black Holes with JWST NIRSpec

Sara Doan, Shobita Satyapal, William Matzko +15

Local low metallicity galaxies with signatures of possible accretion activity are ideal laboratories in which to search for the lowest mass black holes and study their impact on th…

physics.ed-ph2024★ 1 cited

Effective & Ethical Mentorship in Physics and Astronomy through Grassroots Organizations

Natasha Latouf, Emma Schwartzman, Jeffrey McKaig +2

Effective and ethical mentorship practices are crucial to improving recruitment and retention especially for historically minoritized groups (HMGs). Spectrum is a diversity, inclus…

astro-ph.HE2023★ 4 cited

Ray-tracing simulations of the Soft X-ray Scattered Emission in obscured Active Galactic Nuclei

Jeffrey McKaig, Claudio Ricci, Stéphane Paltani +3

Most Active Galactic Nuclei (AGN) in the local Universe are obscured. In these obscured AGN an excess is usually observed in the soft X-rays below ~2 keV above the absorbed X-ray c…

astro-ph.HE2021★ 8 cited

X-ray Simulations of Polar Gas in Accreting Supermassive Black Holes

Jeffrey McKaig, Claudio Ricci, Stéphane Paltani +1

Recent observations have shown that a large portion of the mid--infrared (MIR) spectrum of active galactic nuclei (AGN) stems from the polar regions. In this paper, we investigate…