581 citations · 5.2k across the 60 of their papers we have counts for
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Constructing X-ray Spectral Models of Galaxies: Varying Contributions from X-ray Binary Populations with Host Galaxy Properties
Emerson Gehr, Bret D. Lehmer, Antara R. Basu-Zych +7
Recent work has shown that the emission from X-ray binary (XRB) populations in galaxies varies with stellar mass (), star formation rate (SFR), and metallicity (). Such…
HETDEX: Star Formation Stochasticity Diagram of Lyman Alpha Emitting Galaxies at Cosmic Noon Confirms Three Archetypes
Nicole Firestone, Eric Gawiser, Kartheik G. Iyer +14
In this work, we aim to measure the star formation stochasticity of Lyman Alpha Emitting Galaxies (LAEs) at Cosmic Noon. We identify 270 LAEs from the HETDEX Survey in the COSMOS f…
HECATEv2: An all-sky galaxy catalogue for multimessenger astrophysics
E. Kyritsis, A. Zezas, K. Kovlakas +4
We present HECATEv2, the second release of the Heraklion Extragalactic Catalogue (HECATE), an all-sky, value-added galaxy catalogue comprising 204733 galaxies from the HyperLEDA da…
Constraining the Sub-Galactic Relationship Between Star Formation and the Hot Interstellar Medium in NGC 4254
Erik B. Monson, Bret D. Lehmer, Amirnezam Amiri +17
We investigate the relationship between star formation and X-ray emission from the hot interstellar medium (ISM) on kpc scales in NGC 4254 (M99) by combining spatially resolv…
The Interstellar Medium in IZw18 seen with JWST/MIRI: I. Highly Ionized Gas
L. K. Hunt, A. Aloisi, M. G. Navarro +19
We present JWST/MIRI spectra from the Medium-Resolution Spectrometer of IZw18, a nearby dwarf galaxy with a metallicity of 3% Solar. Its proximity enables a detailed study of…
Emission Line Diagnostics for IMBHs in Dwarf Galaxies: Accounting for BH Seeding and ULX Excitation
Chris T. Richardson, Jordan Wels, Kristen Garofali +13
Dwarf AGN serve as the ideal systems for identifying intermediate mass black holes (IMBHs) down to the most elusive regimes (). However, the ubiquitousl…
An Empirical Framework Characterizing the Metallicity and Star-Formation History Dependence of X-ray Binary Population Formation and Emission in Galaxies
Bret D. Lehmer, Erik B. Monson, Rafael T. Eufrasio +12
We present a new empirical framework modeling the metallicity and star-formation history (SFH) dependence of X-ray luminous ( ergs s) point-source population lu…
The first all-sky survey of star-forming galaxies with eROSITA: Scaling relations and a population of X-ray luminous starbursts
E. Kyritsis, A. Zezas, F. Haberl +11
We present a study of X-ray normal galaxies using data from the first all-sky scan of the eROSITA X-ray survey. eRASS1 provides the first unbiased X-ray census of normal galaxies a…
Modeling the High-Energy Ionizing Output from Simple Stellar and X-ray Binary Populations
Kristen Garofali, Antara R. Basu-Zych, Benjamin D. Johnson +9
We present a methodology for modeling the joint ionizing impact due to a "simple X-ray population" (SXP) and its corresponding simple stellar population (SSP), where "simple" refer…
Lightning: An X-ray to Submillimeter Galaxy SED-Fitting Code With Physically-Motivated Stellar, Dust, and AGN Models
Keith Doore, Erik B. Monson, Rafael T. Eufrasio +3
We present an updated version of Lightning, a galaxy spectral energy distribution (SED) fitting code that can model X-ray to submillimeter observations. The models in Lightning inc…
The Impact of Inclination-dependent Attenuation on Ultraviolet Star Formation Rate Tracers
Keith Doore, Rafael T. Eufrasio, Bret D. Lehmer +3
We examine and quantify how hybrid (e.g., UV+IR) star formation rate (SFR) estimators and the - relation depend on inclination for disk-dominated galaxies using spe…
Elevated Hot Gas and High-Mass X-ray Binary Emission in Low Metallicity Galaxies: Implications for Nebular Ionization and Intergalactic Medium Heating in the Early Universe
Bret D. Lehmer, Rafael T. Eufrasio, Antara Basu-Zych +4
High-energy emission associated with star formation has been proposed as a significant source of interstellar medium (ISM) ionization in low-metallicity starbursts and an important…
The 21-cm signal from the Cosmic Dawn: metallicity dependence of high mass X-ray binaries
Harman Deep Kaur, Yuxiang Qin, Andrei Mesinger +3
X-rays from High-Mass X-ray Binaries (HMXBs) are likely the main source of heating of the intergalactic medium (IGM) during Cosmic Dawn (CD), before the completion of reionization.…
Quenching, bursting and galaxy shapes: colour transformation as a function of morphology
Camila de Sá-Freitas, Thiago Signorini Gonçalves, Reinaldo R. de Carvalho +6
Different mechanisms for quenching star formation in galaxies are commonly invoked in the literature, but the relative impact of each one at different cosmic epochs is still unknow…
On the Impact of Inclination-Dependent Attenuation on Derived Star Formation Histories: Results from Disk Galaxies in the Great Observatories Origins Deep Survey Fields
Keith Doore, Rafael T. Eufrasio, Bret D. Lehmer +4
We develop and implement an inclination-dependent attenuation prescription for spectral energy distribution (SED) fitting and study its impact on derived star-formation histories.…
The eROSITA Final Equatorial-Depth Survey (eFEDS): Presenting The Demographics of X-ray Emission From Normal Galaxies
N. Vulic, A. E. Hornschemeier, F. Haberl +17
The Final Equatorial Depth Survey (eFEDS), completed during the calibration and performance verification phase of the instrument on $\it{Spectrum\, Ro…
The Heraklion Extragalactic Catalogue (HECATE): a value-added galaxy catalogue for multi-messenger astrophysics
Konstantinos Kovlakas, Andreas Zezas, Jeff J. Andrews +6
We present the Heraklion Extragalactic Catalogue, or HECATE, an all-sky value-added galaxy catalogue, aiming to facilitate present and future multi-wavelength and multi-messenger s…
The Metallicity Dependence of the High-Mass X-ray Binary Luminosity Function
Bret D. Lehmer, Rafael T. Eufrasio, Antara Basu-Zych +7
We present detailed constraints on the metallicity dependence of the high mass X-ray binary (HMXB) X-ray luminosity function (XLF). We analyze ~5 Ms of Chandra data for 55 actively…
A census of ultraluminous X-ray sources in the local Universe
Konstantinos Kovlakas, Andreas Zezas, Jeff J. Andrews +5
Using the Chandra Source Catalog 2.0 and a newly compiled catalogue of galaxies in the local Universe, we deliver a census of ultraluminous X-ray source (ULX) populations in nearby…
The Next Generation X-ray Galaxy Survey with eROSITA
Antara R. Basu-Zych, Ann E. Hornschemeier, Frank Haberl +6
eROSITA, launched on 13 July 2019, will be completing the first all-sky survey in the soft and medium X-ray band in nearly three decades. This 4-year survey, finishing in late 2023…
X-ray Binary Luminosity Function Scaling Relations in Elliptical Galaxies: Evidence for Globular Cluster Seeding of Low-Mass X-ray Binaries in Galactic Fields
Bret D. Lehmer, Andrew P. Ferrell, Keith Doore +10
We investigate X-ray binary (XRB) luminosity function (XLF) scaling relations for Chandra detected populations of low-mass XRBs (LMXBs) within the footprints of 24 early-type galax…
The Environment of Lyman Break Analogues (ELBA) survey: Star-forming galaxies in small groups
L. Santana-Silva, T. S. Gonçalves, A. Basu-Zych +7
The Environment of Lyman Break Analogues (ELBA) survey is an imaging survey of 33 of the southern sky. The survey was observed in {\it u}, {\it g}, {\it r}, and {\it i} b…
X-ray Binary Luminosity Function Scaling Relations for Local Galaxies Based on Subgalactic Modeling
Bret D. Lehmer, Rafael T. Eufrasio, Panayiotis Tzanavaris +7
We present new Chandra constraints on the X-ray luminosity functions (XLFs) of X-ray binary (XRB) populations, and their scaling relations, for a sample of 38 nearby galaxies (D =…
On the Spatially Resolved Star-Formation History in M51 II: X-ray Binary Population Evolution
B. D. Lehmer, R. T Eufrasio, L. Markwardt +7
We present a new technique for empirically calibrating how the X-ray luminosity function (XLF) of X-ray binary (XRB) populations evolves following a star-formation event. We first…