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20212026
most citedChandra grating spectroscopy of embedded wind shock X-ray emission from O stars shows low plasma temperatures and significant wind absorption

14 citations · 28 across the 10 of their papers we have counts for

collaborators

12 papers

astro-ph.HE2026

Constraints on Supermassive Black Hole Binaries from the Lack of Resolvable Sources in the NANOGrav 15-yr Dataset

Emiko C. Gardiner, Kayhan Gültekin, Philippe Turgeon +116

Pulsar timing arrays (PTAs) have found evidence of a gravitational wave background (GWB) consistent with a population of supermassive black hole binaries (SMBHBs), but have not yet…

astro-ph.HE2026

A targeted search for fast radio bursts from magnetars in elliptical galaxies

S. Paine, D. R. Lorimer, S. Sirota +12

Motivated by predictions that globular clusters associated with nearby giant elliptical galaxies are prime environments for detecting fast radio bursts (FRBs) from magnetars, we re…

astro-ph.IM2026

Pulsar Timing Array Sensitivity to Anisotropy: Empirical Sensitivity Curves, Scaling Relations, and the Multi-Resolution Pixel Basis

Taha T. Moursy, Nihan S. Pol, Gabriella Agazie +115

We quantify pulsar timing array (PTA) sensitivity to anisotropy in the gravitational wave background using the cross-correlation based Fisher information matrix in the pixel and sp…

astro-ph.HE2026

Timing and statistical analysis of single-pulse search pulsar discoveries from the PALFA survey

Graham M. Doskoch, Maura A. McLaughlin, B. Allen +23

Almost two decades after their discovery, pulsars discoverable only through their single, dispersed radio pulses, known as rotating radio transients (RRATS), remain a poorly-unders…

astro-ph.CO2026

The NANOGrav 15 yr Data Set: Impacts of Customized Chromatic Noise Models on Gravitational Wave Analyses

Nikita Agarwal, Gabriella Agazie, Alessandra Amosso +120

We report updated nHz gravitational wave (GW) significance, characterization, and interpretations using the customized chromatic-noise models (CNMs) developed in Larsen, Baier et a…

astro-ph.HE2026

Gravitational Wave Measurement of the - Intrinsic Scatter at High Redshift

Cayenne Matt, Kayhan Gültekin, Gabriella Agazie +109

The observed GWB spectrum is higher in amplitude than model predictions by a factor of 2-3. Using a semi-analytic model, we evaluate the effect of a high-scatter supermassive black…

astro-ph.HE2026

Twenty-four thousand hours of GREENBURST observations with the GBT

J. W. Kania, S. Paine, G. M. Doskoch +23

In addition to fast radio burst (FRB) searches carried out using dedicated surveys, a number of radio observatories take advantage of commensal opportunities with large facilities…

astro-ph.HE2025★ 11 cited

The NANOGrav 15 yr Data Set: Targeted Searches for Supermassive Black Hole Binaries

Nikita Agarwal, Gabriella Agazie, Akash Anumarlapudi +116

We present the first targeted searches for continuous gravitational waves (CWs) from 114 active galactic nuclei (AGN) that may host supermassive black hole binaries, using the NANO…

astro-ph.HE2024★ 2 cited

A Statistical Analysis of Crab Pulsar Giant Pulse Rates

Graham M. Doskoch, Andrea Basuroski, Kriisa Halley +18

A small number of pulsars are known to emit giant pulses, single pulses much brighter than average. Among these is PSR J0534+2200, also known as the Crab pulsar, a young pulsar wit…

physics.ed-ph2023★ 1 cited

Improving Undergraduate Astronomy Students' Skills with Research Literature via Accessible Summaries: An Exploratory Case Study with Astrobites-based Reading Assignments

Briley L. Lewis, Abygail R. Waggoner, Emma Clarke +17

Undergraduate physics and astronomy students are expected to engage with scientific literature as they begin their research careers, but reading comprehension skills are rarely exp…

astro-ph.EP2022

First Detections of Exop(lan)ets: Observations and Follow-Ups of the Floofiest Transits on Zoom

Sabina Sagynbayeva, Briley L. Lewis, Graham M. Doskoch +16

With the proliferation of online Zoom meetings as a means of doing science in the 2020s, astronomers have made new and unexpected Target of Opportunity (ToO) observations. Chief am…

astro-ph.HE2021★ 14 cited

Chandra grating spectroscopy of embedded wind shock X-ray emission from O stars shows low plasma temperatures and significant wind absorption

David H. Cohen, Winter Parts, Graham M. Doskoch +4

We present a uniform analysis of six examples of embedded wind shock (EWS) O star X-ray sources observed at high resolution with the Chandra grating spectrometers. By modeling both…