90 citations · 306 across the 23 of their papers we have counts for
13 papers · 1 filter
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 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…
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…
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 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…
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…