90 citations · 306 across the 23 of their papers we have counts for
25 papers
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 case for super-Eddington accretion in JWST broad-line AGN during the first billion years
Erini Lambrides, Rebecca Larson, Kristen Garofali +23
A multitude of JWST studies reveal a surprising over-abundance of over-massive accreting super-massive black holes (SMBHs) -- leading to a deepening tension between theory and obse…
Monitoring the X-ray Variability of Bright X-ray Sources in M33
Rebecca Kyer, Shelby Albrecht, Benjamin F. Williams +8
We present a new five-epoch Chandra X-ray Observatory monitoring survey of the nearby spiral galaxy M33 which probes X-ray variability with time sampling between two weeks and four…
The evolution of galaxies and clusters at high spatial resolution with AXIS
H. R. Russell, L. A. Lopez, S. W. Allen +25
Stellar and black hole feedback heat and disperse surrounding cold gas clouds, launching gas flows off circumnuclear and galactic disks and producing a dynamic interstellar medium.…
The High Energy X-ray Probe: Resolved X-ray Populations in Extragalactic Environments
Bret D. Lehmer, Kristen Garofali, Breanna A. Binder +15
We construct simulated galaxy data sets based on the High Energy X-ray Probe (HEX-P) mission concept to demonstrate the significant advances in galaxy science that will be yielded…
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…
The Large Deficit of HMXB Emission from Luminous Infrared Galaxies: the Case of the Circumnuclear Starburst Ring in NGC 7552
Lacey West, Kristen Garofali, Bret D. Lehmer +5
Luminous infrared galaxies (LIRGs), the most extreme star-forming galaxies in the nearby (D30 Mpc) Universe, show a notable X-ray emission deficiency (up to a factor of 10…
Multiwavelength Characterization of the High Mass X-ray Binary Population of M33
Margaret Lazzarini, Kyros Hinton, Cheyanne Shariat +12
We present multi-wavelength characterization of 65 high mass X-ray binary (HMXB) candidates in M33. We use the Chandra ACIS survey of M33 (ChASeM33) catalog to select hard X-ray po…
The Spatial Correlation of High Mass X-ray Binaries and Young Star Clusters in Nearby Star-Forming Galaxies
Breanna A. Binder, Ashley K. Anderson, Kristen Garofali +2
We present an analysis of the two-point spatial correlation functions of high-mass X-ray binary (HMXB) and young star cluster (YSC) populations in M31 and M33. We find evidence tha…
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 Stellar Age Dependence of X-ray Emission from Normal Star-Forming Galaxies in the GOODS Fields
Woodrow Gilbertson, Bret Lehmer, Keith Doore +11
The Chandra Deep Field-South and North surveys (CDFs) provide unique windows into the cosmic history of X-ray emission from normal (non-active) galaxies. Scaling relations of norma…
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 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…
On the X-ray Spectral Energy Distributions of Star-Forming Galaxies: the 0.3-30 keV Spectrum of the Low-Metallicity Starburst Galaxy VV 114
Kristen Garofali, Bret D. Lehmer, Antara Basu-Zych +6
Binary population synthesis combined with cosmological models suggest that X-ray emission from star-forming galaxies, consisting primarily of emission from X-ray binaries (XRBs) an…
Multiwavelength Study of the X-Ray Bright Supernova Remnant N300-S26 in NGC 300
Jacob Gross, Benjamin F. Williams, Thomas G. Pannuti +3
We present a multiwavelength examination of the supernova remnant (SNR) S26 in the nearby galaxy NGC 300 using data from Chandra X-ray Observatory, XMM-Newton X-ray Observatory, Hu…
The First Candidate Colliding-Wind Binary in M33
Kristen Garofali, Emily M. Levesque, Philip Massey +1
We present the detection of the first candidate colliding-wind binary (CWB) in M33, located in the giant H II region NGC 604. The source was first identified in archival {\it Chand…
Supernova Remnants in High Definition
Laura A. Lopez, Brian J. Williams, Samar Safi-Harb +14
Supernova remnants (SNRs) offer the means to study SN explosions, dynamics, and shocks at sub-parsec scales. X-ray observations probe the hot metals synthesized in the explosion an…
Formation Timescales for High-Mass X-ray Binaries in M33
Kristen Garofali, Benjamin F. Williams, Tristan Hillis +4
We have identified 55 candidate high-mass X-ray binaries (HMXBs) in M33 using available archival {\it HST} and {\it Chandra} imaging to find blue stars associated with X-ray positi…
Pre-MAP Search for Transiting Objects Orbiting White Dwarfs
Aislynn Wallach, Brett M. Morris, Doug Branton +7
Metal pollution in white dwarf atmospheres may be the accreted remnants of planetary objects. After the discovery of disintegrating planetary objects transiting WD 1145+017 (Vander…
Supernova Remnants in M33: X-ray Properties as Observed by XMM-Newton
Kristen Garofali, Benjamin F. Williams, Paul P. Plucinsky +8
We have carried out a study of the X-ray properties of the supernova remnant (SNR) population in M33 with XMM-Newton, comprising deep observations of 8 fields in M33 covering all o…
A Deep XMM-Newton Survey of M33: Point Source Catalog, Source Detection and Characterization of Overlapping Fields
Benjamin F. Williams, Brian Wold, Frank Haberl +9
We have obtained a deep 8-field XMM-Newton mosaic of M33 covering the galaxy out to the D isophote and beyond to a limiting 0.2--4.5 keV unabsorbed flux of 510$^{-16…