Group Publications

Stellar Mass Black Holes and Other Compact Objects

• A Reanalysis of the Isolated Black Hole Candidate OGLE-2011-BLG-0462/MOA-2011-BLG-191 (Lam & Lu, 2023)

• An Isolated Mass-gap Black Hole or Neutron Star Detected with Astrometric Microlensing (Lam et al. 2022)

• Supplement: "An Isolated Mass-gap Black Hole or Neutron Star Detected with Astrometric Microlensing" (2022, ApJL, 933, L23) (Lam et al. 2022)

• 60 Microlensing Events from the Three Years of Zwicky Transient Facility Phase One (Medford and Abrams et al. 2023)

• The Impact of Initial-Final Mass Relations on Black Hole Microlensing (Rose et al. 2022)

• Gravitational Microlensing Event Statistics for the Zwicky Transient Facility (Medford et al. 2020)

• PopSyCLE: A New Population Synthesis Code for Compact Object Microlensing Events (Lam et al. 2020)

• Primordial Black Hole Microlensing: The Einstein Crossing Time Distribution (Lu et al. 2019)

• A Search For Stellar-mass Black Holes Via Astrometric Microlensing (Lu et al. 2016)

Collaboration Papers:

• Disentangling the Black Hole Mass Spectrum with Photometric Microlensing Surveys (Perkins et al. 2023)

• A Reanalysis of Public Galactic Bulge Gravitational Microlensing Events from OGLE-III and -IV (Golovich et al. 2020)

• Probing the Fundamental Nature of Dark Matter with the Large Synoptic Survey Telescope (Drlica Wagner et al. 2019) - LSST dark matter collaboration

• Keck Observations Confirm a Super-Jupiter Planet Orbiting M Dwarf OGLE-2005-BLG-071L (Bennett et al. 2020)

• Full orbital solution for the binary system in the northern Galactic disc microlensing event Gaia16aye (Wyrzykowski et al. 2020)

• Astrometry with the Wide-Field Infrared Space Telescope (WFIRST Astrometry Working Group et al. 2019)

• A Remarkable Low-Mass X-Ray Binary within 0.1 Parsecs of the Galactic Center (Muno et al. 2005)

• An Overabundance of Transient X-Ray Binaries within 1 Parsec of the Galactic Center (Muno et al. 2005)

• Long-Term Rossi X-Ray Timing Explorer Monitoring of the Anomalous X-Ray Pulsar 1E 1048.1-5937 (Kaspi et. al 2001)

• A Glitch in an Anomalous X-Ray Pulsar (Kaspi et al. 2000)

   

 Star Formation and the Initial Mass Function

• SPISEA: A Python-Based Simple Stellar Population Synthesis Code for Star Clusters (Hosek et al. 2020)

• The Quintuplet Cluster: Extended Structure and Tidal Radius (Rui et al. 2019)

• Stellar Proper Motions in the Orion Nebula Cluster (Kim et al. 2019)

• The Unusual Initial Mass Function of the Arches Cluster (Hosek et al. 2019)

• The Optical/Near-infrared Extinction Law in Highly Reddened Regions (Hosek et al. 2018)

• Massive Young Clusters Near the Galactic Center (Lu et al. 2018), Book Chapter

• The Arches Cluster: Extended Structure and Tidal Radius (Hosek et al. 2015)

• Stellar Populations in the Central 0.5 pc of the Galaxy. II. The Initial Mass Function (Lu et al. 2013)

• A Binary-Induced Pinwheel Outflow from the Extreme Carbon Star, AFGL 3068 (Morris et al. 2006)

Collaboration Papers:

• Probing the Low-Mass End of the Initial Mass Function with an HST DASH Survey of Star-Forming Regions (Best et al. 2020)

Adaptive Optics, Astrometry, Instrumentation

• AIROPA IV: Validating Point Spread Reconstruction on Various Science Cases (Terry et al. 2023)

• Adaptive Optics Imaging Can Break the Central Caustic Cusp Approach Degeneracy in High-magnification Microlensing Events (Terry et al. 2022)

• Transformations from Pan-STARRS1 and UBV Filters into ZTF Filters (Medford et al. 2020)

• KAPA: A new Keck laser-guide star AO system that increases image quality and sky coverage (Lu et al. 2020)

• Geometric distortion calibration with photolithographic pinhole masks for high-precision astrometry (Service et al. 2019)

• Characterizing and Improving the Data Reduction Pipeline for the Keck OSIRIS Integral Field Spectrograph (Lockhart et al. 2019)

• Improved Image Quality over 10′ Fields with the ́Imaka Ground-layer Adaptive Optics Experiment (Abdurrahman et al. 2018)

• Geometric distortion calibration using a pinhole mask (Service et al. 2018)

• Ground layer adaptive optics for the W. M. Keck Observatory: feasibility study (Lu et al. 2018)

• ExtLaw_H18: Extinction law code (Hosek et al. 2018)

• Near-infrared astrometry of star clusters with different flavors of adaptive optics and HST (Lu et al. 2014)

• Clarifying our View of Star Formation in Massive Young Clusters with Adaptive Optics (Lu et al. 2011)

Collaboration Papers:

• AIROPA III: Testing Simulated and On-sky Data (Turri et al. 2022) - AIROPA collaboration

• AIROPA II: Modeling Instrumental Aberrations for Off-axis Point Spread Functions in Adaptive Optics (Ciurlo et al. 2022) - AIROPA Collaboration

• Astrometry with the Wide-Field Infrared Space Telescope (WFIRST Astrometry Working Group et al. 2019)

• Deconstructing turbulence and optimizing GLAO using imaka telemetry (Lai et al. 2018) - 'imaka collaboration

• Off-axis PSF reconstruction for integral field spectrograph: instrumental aberrations and application to Keck/OSIRIS data (Ciurlo et al. 2018) - AIROPA collaboration

• Point-spread function reconstruction for integral-field spectrograph data (Do et al. 2018) - AIROPA collaboration

• On-sky results from the wide-field ground-layer adaptive optics demonstrator 'imaka (Chun et al. 2018) - 'imaka collaboration

• OSIRIS Toolbox: OH-Suppressing InfraRed Imaging Spectrograph pipeline (Lyke et al. 2017)

Galactic Centers

• The Galactic Center: Improved Relative Astrometry for Velocities, Accelerations, and Orbits near the Supermassive Black Hole (Jia et al. 2019)

• A Slowly Precessing Disk in the Nucleus of M31 as the Feeding Mechanism for a Central Starburst (Lockhart et al. 2018)

• HST/WFC3 Observations of an Off-nuclear Superbubble in Arp 220 (Lockhart et al. 2015)

• Young Stars in the Galactic Center (Lu et al. 2014)

• Stellar Populations in the Central 0.5 pc of the Galaxy. II. The Initial Mass Function (Lu et al. 2013)

• Orbits and origins of the young stars in the central parsec of the galaxy (Lu et al. 2008)

• Exploring the origins of the young stars in the central parsec of the Galaxy with stellar dynamics (Lu 2008)

• Constraints on Orbits and Origins of Young Stars in the Central Parsec of the Galaxy (Lu et al. 2005)

• IRS 16 SW: A New Comoving Group of Young Stars in the Central Parsec of the Milky Way (Lu et al. 2005)

Collaboration Papers:

• Understanding the star formation and dynamical histories of the Milky Way Galactic center with stellar binaries (Gautam et al. 2020)

• Search for a Variation of the Fine Structure Constant around the Supermassive Black Hole in Our Galactic Center (Hees et al. 2020)

• Consistency of the Infrared Variability of SGR A* over 22 yr (Chen et al. 2019)

• Relativistic redshift of the star S0-2 orbiting the Galactic Center supermassive black hole (Do et al. 2019)

• Monitoring the Unprecendented Near-Infrared Variability of Sgr A* (Do et al. 2019)

• Building an astrometric reference frame for tests of General Relativity with stellar orbits at the Galactic center with HST and GAIA (Do. et al. 2019)

• The Galactic Center: An Improved Astrometric Reference Frame for Stellar Orbits around the Supermassive Black Hole (Sakai et al. 2019)

• An Adaptive Optics Survey of Stellar Variability at the Galactic Center (Gautam et al. 2019)

• Monitoring the Variability of the Supermassive Black Hole at the Galactic Center (Chen 2018)

• Laser Guide Star Adaptive Optics Proper Motion Measurements of Stars in the Central Parsec of the Galactic Center (Yelda et al. 2007)

• A Constant Spectral Index for Sagittarius A* during Infrared/X-Ray Intensity Variations (Hornstein et al. 2007)

• Photometric Stellar Variability in the Galactic Center (Rafelski et al. 2006)

• The First Laser Guide Star Adaptive Optics Observations of the Galactic Center: Sgr A*'s Infrared Color and the Extended Red Emission in its Vicinity (Ghez et al. 2005)

• A Remarkable Low-Mass X-Ray Binary within 0.1 Parsecs of the Galactic Center (Muno et al. 2005)

• An Overabundance of Transient X-Ray Binaries within 1 Parsec of the Galactic Center (Muno et al. 2005)

• Stellar Orbits around the Galactic Center Black Hole (Ghez et al. 2005)
  
  

White Papers

• The Galactic Center with Roman (Terry et al. 2023)

• Roman CCS White Paper: Characterizing the Galactic population of isolated black holes (Lam et al. 2023)

• Rubin Microlensing Discovery and Characterization Efficiency at Different Timescales (Abrams et al. 2021)

• From Stars to Compact Objects: The Initial-Final Mass Relation (Lu et al. 2019)

• Training the Next Generation of OIR Instrumentalists (Lu et al. 2019)

• Star Formation in Different Environments: The Initial Mass Function (Hosek et al. 2019)

• Dark Matter Science in the Era of LSST (Bechtol et al. 2019)

• Envisioning the next decade of Galactic Center science: a laboratory for the study of the physics and astrophysics of supermassive black holes (Do et al. 2019)

• The Local Relics of of Supermassive Black Hole Seeds (Greene et al. 2019)

• Astro2020 Science White Paper: The Local Relics of of Supermassive Black Hole Seeds (Lu et al. 2019)