NS
Nathan Secrest
astro-ph.GAastro-ph.COastro-ph.HEastro-ph.IMgr-qchep-phastro-ph.SRastro-ph.EPcosmic microwave backgroundcosmological principle
On Valency
published · living versionsW_fyfqc6zh·v1 · currentpublished
An Optically Obscured AGN in a Low Mass, Irregular Dwarf Galaxy: A Multi-Wavelength Analysis of J1329+3234
with Shobita Satyapal, Mario Gliozzi, Barry Rothberg, Sara Ellison +4
1 version
Preprints & journals
61 papers in the corpus · 2010–2026A New Sample of Closely Separated Dual and Binary AGN Candidates Revealed with the Radio Fundamental Catalog2609.39977v1 · Emma Schwartzman, Ryan Pfeifle, Tracy Clarke et al.2026 · 0 citationsarXiv
The Hunt for Red Dual AGNs I: Spatially-Resolved Mid-IR Dual AGNs in the DeCam Legacy Survey2605.13946v1 · Ryan W. Pfeifle, Kimberly A. Weaver, Barry Rothberg et al.2026 · 0 citationsarXiv
Blazars define a stable celestial reference frame2601.15381v1 · Nathan Secrest, Sebastien Lambert2026 · 0 citationsarXiv
Clustering properties of the CatWISE2020 quasar catalogue and their impact on the cosmic dipole anomaly2510.23769v2 · Sebastian von Hausegger, Nathan Secrest, Harry Desmond et al.2025 · 5 citationsarXiv
VLA FRAMEx. III. Circumnuclear Radio Emission Mechanisms in Hard X-ray Selected Active Galactic Nuclei2509.03466v2 · Andrew J. Sargent, Alexander J. van der Horst, Megan C. Johnson et al.2025 · 0 citationsarXiv
A High Resolution Search for Dual AGN Candidates in Mergers: A Pre-Selection Strategy using Keck AO2507.05250v2 · Camilo Vazquez, S. Satyapal, G. Canalizo et al.2025 · 0 citationsarXiv
Colloquium: The Cosmic Dipole Anomaly2505.23526v2 · Nathan Secrest, Sebastian von Hausegger, Mohamed Rameez et al.2025 · 18 citationsRev. Mod. Phys. 97 (2025) 041001
VLA FRAMEx. II. Radio Spectra of Nearby Active Galactic Nuclei at Subarcsecond Resolution2503.20026v1 · Andrew J. Sargent, Alexander J. van der Horst, Megan C. Johnson et al.2025 · 2 citationsarXiv
Varstrometry for Dual AGN using Radio interferometry: VaDAR with the VLBA2503.02668v1 · Emma Schwartzman, Paula Fudolig, Tracy Clarke et al.2025 · 0 citationsarXiv
The Ellis-Baldwin test.39938545 · Secrest, Nathan J2025 · 4 citationsPhilosophical transactions. Series A, Mathematical, physical, and engineering sciences. 2025;383(2290):20240027
The CLASS Quasar Catalog: Coronal Line Activity in Type 1 SDSS Quasars2501.17067v1 · Sara Doan, Shobita Satyapal, Michael Reefe et al.2025 · 3 citationsarXiv
Forty years of the Ellis-Baldwin test2501.06450v1 · Nathan Secrest, Sebastian von Hausegger, Mohamed Rameez et al.2025 · 6 citationsNature Reviews Physics 7 (2025) 68
Super-Size Me: The Big Multi-AGN Catalog (The Big MAC), Data Release 1: The Source Catalog2411.12799v1 · Ryan W. Pfeifle, Kimberly A. Weaver, Nathan J. Secrest et al.2024 · 15 citationsarXiv
Local Analogs of Primordial Galaxies: In Search of Intermediate Mass Black Holes with JWST NIRSpec2408.04774v1 · Sara Doan, Shobita Satyapal, William Matzko et al.2024 · 8 citationsarXiv
Metrics of Astrometric Variability in the International Celestial Reference Frame: I. Statistical analysis and selection of the most variable sources2408.01373v1 · Phil Cigan, Valeri Makarov, Nathan Secrest et al.2024 · 6 citationsarXiv
A closer look at dwarf galaxies exhibiting MIR variability: AGN confirmation and comparison with non-variable dwarf galaxies2408.00666v1 · Archana Aravindan, Gabriela Canalizo, Nathan Secrest et al.2024 · 0 citationsarXiv
FRAMEx. V. Radio Spectral Shape at Central Sub-parsec Region of AGNs2312.04452v1 · Onic I. Shuvo, Megan C. Johnson, Nathan J. Secrest et al.2023 · 0 citationsarXiv
VLA FRAMEx. I. Wideband Radio Properties of the AGN in NGC 43882311.18833v1 · Andrew J. Sargent, Travis C. Fischer, Megan C. Johnson et al.2023 · 7 citationsarXiv
Exploring X-ray Properties of Low Metallicity Dwarf Galaxies2310.02999v1 · Jenna M. Cann, Kimberly A. Weaver, Ryan W. Pfeifle et al.2023 · 5 citationsarXiv
FRAMEx IV: Mechanical Feedback from the Active Galactic Nucleus in NGC 30792310.03019v1 · Luis C. Fernandez, Nathan J. Secrest, Megan C. Johnson et al.2023 · 4 citationsarXiv
JASMINE: Near-Infrared Astrometry and Time Series Photometry Science2307.05666v2 · Daisuke Kawata, Hajime Kawahara, Naoteru Gouda et al.2023 · 25 citationsarXiv
NuSTAR Observations of Four Mid-IR Selected Dual AGN Candidates in Galaxy Mergers2306.16437v1 · Ryan W. Pfeifle, Kimberly Weaver, Shobita Satyapal et al.2023 · 6 citationsarXiv
No Small Scale Radio Jets Here: Multi-Epoch Observations of Radio Continuum Structures in NGC 1068 with the VLBA2306.15047v1 · Travis C. Fischer, Megan C. Johnson, Nathan J. Secrest et al.2023 · 24 citationsarXiv
VaDAR: Varstrometry for Dual AGN using Radio interferometry2306.13219v2 · Emma Schwartzman, Tracy E. Clarke, Kristina Nyland et al.2023 · 11 citationsarXiv
Radio-Optical Reference Catalog, version 12305.17755v1 · Valeri V. Makarov, Megan C. Johnson, Nathan J. Secrest2023 · 4 citationsarXiv
The Messy Nature of Fiber Spectra: Star-Quasar Pairs Masquerading as Dual Type 1 AGNs2302.09095v1 · Ryan W. Pfeifle, Barry Rothberg, Kimberly A. Weaver et al.2023 · 5 citationsarXiv
NuSTAR Observes Two Bulgeless Galaxies: No Hard X-ray AGN Detected in NGC 4178 or J0851+39262211.17271v1 · Ryan W. Pfeifle, Shobita Satyapal, Claudio Ricci et al.2022 · 2 citationsarXiv
Nuclear Activity in the Low Metallicity Dwarf Galaxy SDSS J0944-0038: A Glimpse into the Primordial Universe2211.13179v3 · Michael Reefe, Shobita Satyapal, Remington O. Sexton et al.2022 · 15 citationsarXiv
CLASS Survey Description: Coronal Line Needles in the SDSS Haystack2211.11882v1 · Michael Reefe, Remington O. Sexton, Sara M. Doan et al.2022 · 15 citationsarXiv
A Highly Magnified Gravitationally Lensed Red QSO at z = 2.5 with a Significant Flux Ratio Anomaly2211.03866v1 · Eilat Glikman, Cristian E. Rusu, Geoff C.-F. Chen et al.2022 · 21 citationsarXiv
A catalog of candidate double and lensed quasars from Gaia and WISE data2210.01937v1 · Valeri V. Makarov, Nathan J. Secrest2022 · 9 citationsarXiv
Optical-Radio Position Offsets are Inversely Correlated with AGN Photometric Variability2209.09928v1 · Nathan Secrest2022 · 14 citationsarXiv
CLASS: Coronal Line Activity Spectroscopic Survey2208.10532v1 · Michael Reefe, Shobita Satyapal, Remington O. Sexton et al.2022 · 21 citationsApJ 936, 140 (2022)
Fundamental Reference AGN Monitoring Experiment (FRAMEx) III: Radio Emission in the Immediate Vicinity of Radio Quiet AGNs2208.05848v1 · Onic I. Shuvo, Megan C. Johnson, Nathan J. Secrest et al.2022 · 10 citationsarXiv
A Challenge to the Standard Cosmological Model2206.05624v2 · Nathan Secrest, Sebastian von Hausegger, Mohamed Rameez et al.2022 · 155 citationsAstrophys. J. Lett. 937 (2022) L31
Quasars with Proper Motions and the Link to Double and Multiple AGNs2206.04148v1 · Valeri V. Makarov, Nathan J. Secrest2022 · 26 citationsarXiv
Wandering Black Hole Candidates in Dwarf Galaxies at VLBI Resolution2205.16006v1 · Andrew J. Sargent, Megan C. Johnson, Amy E. Reines et al.2022 · 16 citationsarXiv
Galaxy Pairs in the Sloan Digital Sky Survey XV: Properties of Ionised Outflows2205.13668v1 · William Matzko, Shobita Satyapal, Sara L. Ellison et al.2022 · 12 citationsarXiv
The U.S. Naval Observatory VLBI Spectroscopic Catalog2203.13089v1 · Remington O. Sexton, Nathan J. Secrest, Megan C. Johnson et al.2022 · 9 citationsarXiv
Testing the Cosmological Principle: Astrometric Limits on Systemic Motion of Quasars at Different Cosmological Epochs2202.07536v1 · Valeri V. Makarov, Nathan J. Secrest2022 · 10 citationsarXiv
FRAMEx II: Simultaneous X-ray and Radio Variability in Active Galactic Nuclei The Case of NGC 29922201.05152v1 · Luis C. Fernandez, Nathan J. Secrest, Megan C. Johnson et al.2022 · 12 citationsarXiv
Fundamental Reference AGN Monitoring Experiment (FRAMEx) I: Jumping Out of the Plane with the VLBA2011.06570v1 · Travis C. Fischer, Nathan J. Secrest, Megan C. Johnson et al.2020 · 38 citationsarXiv
A Test of the Cosmological Principle with Quasars2009.14826v2 · Nathan Secrest, Sebastian von Hausegger, Mohamed Rameez et al.2020 · 281 citationsAstrophys. J. Lett. 908 (2021) L51
The Fundamental Reference AGN Monitoring Experiment (FRAMEx)2009.02169v1 · B. Dorland, N. Secrest, M. Johnson et al.2020 · 1 citationarXiv
The X-ray View of Merger-Induced AGN Activity at Low Redshift2006.01850v1 · Nathan Secrest, Sara Ellison, Shobita Satyapal et al.2020 · 28 citationsarXiv
BAT AGN Spectroscopic Survey -- XIII. The nature of the most luminous obscured AGN in the low-redshift universe1908.07546v1 · Rudolf E. Bar, Benny Trakhtenbrot, Kyuseok Oh et al.2019 · 14 citationsarXiv
Voyage 2050 White Paper: All-Sky Visible and Near Infrared Space Astrometry1907.12535v1 · David Hobbs, Anthony Brown, Erik H\og et al.2019 · 8 citationsarXiv
The Next Generation Celestial Reference Frame1903.11145v1 · Megan Johnson, Frank Schinzel, Jeremy Darling et al.2019 · 0 citationsarXiv
The Limitations of Optical Spectroscopic Diagnostics in Identifying AGNs in the Low Mass Regime1812.06170v1 · Jenna M. Cann, Shobita Satyapal, Nicholas P. Abel et al.2018 · 67 citationsarXiv
The Hunt for Intermediate Mass Black Holes in the JWST Era1805.09351v1 · Jenna M. Cann, Shobita Satyapal, Nicholas P. Abel et al.2018 · 55 citationsarXiv
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