Talks

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  • Steve Allen
  • (Stanford University)
  • Chandra and Cluster Cosmology
  • Vallia Antoniou
  • (Texas Tech University and Center for Astrophysics | Harvard & Smithsonian)
  • Chandra's 20-year view of X-ray binaries in the Milky Way and nearby galaxies
  • Andrea Belfiore
  • (inaf-iasf mi)
  • Diffuse emission around an ultra-luminous X-ray pulsar
  • Breanna Binder
  • (Cal Poly Pomona)
  • Revisiting the Lx-SFR Relationship in Nearby Galaxies
  • Valentina Braito
  • (UMBC)
  • Chandra high resolution map of the emitting regions of NGC 7582
  • Becky Canning
  • (Stanford University / KIPAC)
  • AGN Evolution in the Universe's Densest Environments
  • Urmila Chadayammuri
  • (Yale University)
  • Constraining plasma microphysics with MHD simulations and Chandra X-ray Visionary Program Observations of the merging cluster Abell 2146
  • Koushik Chatterjee
  • (University of Amsterdam)
  • The First High-Resolution GRMHD studies of accretion in Sgr A*
  • Francesca Civano
  • (Center for Astrophysics | Harvard & Smithsonian)
  • In medio stat virtus: the Chandra COSMOS Legacy Survey
  • PDF
  • Stéphane Corbel
  • (Univ. Paris & Obs. Paris & CEA Saclay)
  • Chandra reveals multiple X-ray jets in black hole X-ray binaries
  • Lia Corrales
  • (University of Michigan)
  • The low-luminosity accretion flow of Sgr A* as seen by Chandra HETG
  • Edmund Douglass
  • (Farmingdale State College - SUNY)
  • Off-Axis Mergers and Cool Core Disruption in Galaxy Clusters
  • William Dunn
  • (UCL - Mullard Space Science Laboratory, CfA | Harvard & Smithsonian)
  • A New Revolution for Planetary X-ray Emission Through Chandra and Juno
  • Vikram Dwarkadas
  • (University of Chicago)
  • X-ray Spectroscopy of Young Supernovae with Chandra
  • Pepi Fabbiano
  • (Center for Astrophysics | Harvard & Smithsonian)
  • The Einstein Observatory
  • Chiara Feruglio
  • (INAF OATs)
  • Chandra, ALMA and MUSE@VLT reveal feeding & feedback in obscured AGN
  • Francesca Fornasini
  • (Center for Astrophysics | Harvard & Smithsonian)
  • Connecting the metallicity dependence and redshift evolution of HMXBs
  • Kristen Garofali
  • (University of Arkansas)
  • On the Nature of the 0.3–30 keV Spectrum of Low-Metallicity Starburst Galaxy VV114 Based on Chandra, XMM, and NuSTAR
  • Binary population synthesis combined with cosmological models suggest that X-ray binaries (XRBs) could be an important, and perhaps dominant, source of heating for the intergalactic medium prior to the epoch of reionization. The power of such models for predicting the importance of XRBs in the early universe relies on empirical constraints on XRB X-ray spectral energy distributions (SEDs); however, such empirical constraints are currently lacking for XRB populations in low-metallicity galaxies, where the environments probed more closely resemble that of the early universe. Using a combination of Chandra, XMM-Newton, and NuSTAR observations we present new constraints on the 0.3-30 keV SED of the low-metallicity, starburst galaxy VV114, which is known to host an excess of ultra-luminous X-ray sources above 1040 erg/s. Critically, only Chandra is capable of resolving the emission into individual point sources in VV114. We use archival Chandra observations to constrain the contributions to the SED from the X-ray point sources, including a likely active galactic nucleus (AGN) in the eastern region of VV114, and the XRB population. We extend the spectral model derived from the Chandra data to newly acquired, near-simultaneous XMM-Newton and NuSTAR observations of VV114 to measure the contribution of the XRB population to the galaxy spectrum at energies > 10 keV. Using our best-fit spectral model, we derive the XRB SED of VV114 which we compare to similar studies of XRB SEDs in higher-metallicity galaxies. Finally, we discuss the implications of the measured shape of the low-metallicity XRB SED in VV114 for the importance of the emission from XRB populations in the high redshift universe during the cosmic epoch of heating.
  • Konstantin Getman
  • (Pennsylvania State University)
  • Insights into Young Star Cluster Astrophysics Based on Chandra Observations
  • Hans Moritz Günther
  • (MIT)
  • New tricks for a matureobservatory: Chandra HETG/HRC-I observations of TW Hya probe the structure of accretion
  • Daryl Haggard
  • (McGill University)
  • Chandra's Legacy of Discovery in Transient Astrophysics
  • Paul Hertz
  • (NASA)
  • X-ray Astronomy and the Future of Astrophysics
  • Ryan Hickox
  • (Dartmouth College)
  • Science with deep surveys: Evolution of black holes and galaxies and the cosmic X-ray background
  • David Huenemoerder
  • (MIT)
  • A Deep Exposure in High Resolution X-Rays Reveals the Hottest Plasma in the zeta Puppis Wind
  • Xiangyu Jin
  • (McGill University)
  • Connecting Changing-Look Quasar's Optical/X-ray Spectral Shapes and Accretion Rates
  • Mackenzie Jones
  • (Center for Astrophysics | Harvard & Smithsonian)
  • Large Scale Extended Hard X-ray Emission in NGC 7212 with Chandra
  • Recent observations of nearby Compton Thick (CT) active galactic nuclei (AGN) with Chandra have resolved hard X-ray emission extending out from the central supermassive black hole (SMBH) to kpc scales, challenging the long-held belief that the characteristic hard X-ray continuum and fluorescent Fe K lines originate in the inner ∼pc due to the excitation of obscuring material. Here I will present the results of the most recent Chandra ACIS-S observations of NGC 7212, a CT AGN in a compact group of interacting galaxies. We find that ∼19% of the emission associated with hard X-ray continuum and Fe K line is extended both along the ionization cone and in the cross-cone direction on kpc scales. The spectra of NGC 7212 is best represented by a mixture of thermal and photoionization models, consistent with what is observed for other CT AGN (e.g., ESO 428-G014), indicating the presence of complex gas interactions. These observations, when coupled with what we know from other extended sources, will provide a foundation for understanding how AGN feedback impacts host galaxies on galactic scales.
  • Christine Jones
  • (Center for Astrophysics | Harvard & Smithsonian)
  • Uhuru - Probing the "hoary deep" in a New Light with the First Orbiting X-ray Observatory.
  • Jelle Kaastra
  • (SRON)
  • A new era of AGN outflow studies initiated by Chandra's LETGS
  • PDF
  • Margarita Karovska
  • (Center for Astrophysics | Harvard & Smithsonian)
  • Chandra's Sub-arcsecond Resolution View of Wind Accreting Interacting Symbiotic Binaries
  • Vicky Kaspi
  • (McGill University)
  • Chandra and Neutron Stars
  • Chandra has been invaluable to the study of neutron stars in their diverseforms, from radio pulsars and their wind nebulae, to thermally cooling neutronstars, to magnetars in quiescence and in outburst, to the curious "centralcompact objects." Here we review the principal contributions Chandra has madeto this area of research, and consider what future results may be of interest.
  • Dacheng Lin
  • (University of New Hampshire)
  • Three candidate magnetar-powered fast X-ray transients found from Chandra archival data
  • Chandreyee Maitra
  • (Max Planck Institute for Extraterrestrial Physics)
  • Unveiling the intriguing nature of PSR J0855-4644 through a Chandra observation: Why no Gamma rays?
  • Sera Markoff
  • (University of Amsterdam)
  • Chandra’s exquisite view of the accretion processes around black holes
  • Rafael Martínez-Galarza
  • (Center for Astrophysics | Harvard & Smithsonian)
  • The Weirdest Objects in the Chandra Source Catalog 2.0. A Machine Learning Approach
  • Alberto Masini
  • (Dartmouth College)
  • The Chandra Deep Wide Field Survey of the Bootes Field
  • Michael McDonald
  • (MIT)
  • 10 Years of Chandra and the South Pole Telescope
  • Brian McNamara
  • (University of Waterloo)
  • Cluster Atmospheres Unveiled by Chandra
  • PDF
  • Kirpal Nandra
  • (MPE)
  • Status and first results from eROSITA
  • Kate Napier
  • (University of Michigan)
  • Probing the viability of CMB quenching for high-z jetted AGN
  • Priyamvada Natarajan
  • (Yale University)
  • Unveiling black holes in the near and far universe
  • Rachel Osten
  • (Space Telescope Science Institute & John Hopkins University)
  • Seeing Stars in a New Light: What Have We Learned from 20 Years of Investigations with Chandra, and What Do We Still Need to Learn?
  • Vaughn Parts
  • (Swarthmore College)
  • Modeling O star gratingspectra to constrain the shock-heated plasma temperature distributions and mass-loss rates of their winds
  • Daniel Patnaude
  • (Center for Astrophysics | Harvard & Smithsonian)
  • 20 Years of Cas A with the Chandra X-ray Observatory
  • George Pavlov
  • (Pennsylvania State University)
  • High-speed ejecta from the high-mass gamma-ray binary PSR B1259--63/LS 2883
  • Ryan Pfeifle
  • (George Mason University)
  • Uncovering Buried Dual and Triple AGNs in Galaxy Mergers
  • Gabriele Ponti
  • (Istituto Nazionale di Astrofisica, Osservatorio Astronomico di Brera)
  • AGN and AGN feedback
  • David Pooley
  • (Trinity University)
  • The Most Powerful Lenses in the Universe: Quasar Microlensing
  • Norbert Schartel
  • (ESA - ESAC)
  • 20th Launch Anniversary of XMM-Newton: Scientific Achievements and Future Perspectives
  • Pat Slane
  • (Center for Astrophysics | Harvard & Smithsonian)
  • Probing the Relics of Stellar Explosions with Chandra
  • Randall Smith
  • (Center for Astrophysics | Harvard & Smithsonian)
  • The Future of High Resolution Spectroscopy
  • Bradford Snios
  • (Center for Astrophysics | Harvard & Smithsonian)
  • Detection of Superluminal Motion in the X-Ray Jet of M87
  • Malgosia Sobolewska
  • (Center for Astrophysics | Harvard & Smithsonian)
  • Environment and growth of young extragalactic radio jets probed with X-rays
  • Roberto Soria
  • (UCAS (Beijing))
  • Ultraluminous X-ray sources and nuclear black holes in the Virgo cluster spirals
  • James Steiner
  • (Center for Astrophysics | Harvard & Smithsonian)
  • Spins of supermassive black holes with X-ray timing observations of tidal disruption events (TDEs)
  • Harvey Tananbaum
  • (Center for Astrophysics | Harvard & Smithsonian)
  • Chandra’s Early Years (1963 – 1991)
  • Wallace Tucker
  • (Center for Astrophysics | Harvard & Smithsonian)
  • Discovery Years with Rocket
  • Georgios Vasilopoulos
  • (Yale University)
  • Ultraluminous X-ray pulsars: spin-evolution and super-orbital modulation during super-Eddington accretion
  • Alexey Vikhlinin
  • (Center for Astrophysics | Harvard & Smithsonian)
  • Future of high-resolution X-ray imaging
  • Stephen Walker
  • (University of Alabama in Huntsville)
  • Unravelling the physics of the intracluster medium with cold fronts
  • Q. Daniel Wang
  • (University of Massachusetts)
  • Large-scale Chandra Survey of the Galactic Central Region
  • Qian Wang
  • (University of Utah)
  • Searching for X-ray Shock Fronts at Radio Relic Edges in PLCKESZ G200.9-28.2 and Abell 2345 with Chandra
  • Martin Weisskopf
  • (NASA MSFC)
  • Building the Observatory 1991-1999
  • Belinda Wilkes
  • (Center for Astrophysics | Harvard & Smithsonian)
  • Riccardo's Legacy in X-ray Astronomy: Chandra's Science
  • Brian Williams
  • (NASA GSFC)
  • The Expansion of Tycho's Supernova Remnant
  • Scott Wolk
  • (Center for Astrophysics | Harvard & Smithsonian)
  • High Energy Diversity of Exoplanet Host Stars
  • Yi-Jung Yang
  • (Institute of High Energy Physics, Chinese Academy of Sciences)
  • A Candidate Nuclear IMBH in a Blue Compact Dwarf Galaxy
  • Shuo Zhang
  • (Boston University)
  • Fine Morphology of Galactic Center Non-thermal Filaments Revealed by Deep Chandra sObservation