The Tidal Disruption Event AT2021ehb: Evidence of Relativistic Disk Reflection, and Rapid Evolution of the Disk-Corona System

Kavli Affiliate: Dheeraj R. Pasham | First 5 Authors: Yuhan Yao, Wenbin Lu, Muryel Guolo, Dheeraj R. Pasham, Suvi Gezari | Summary: We present X-ray, UV, optical, and radio observations of the nearby ($approx78$ Mpc) tidal disruption event (TDE) AT2021ehb/ZTF21aanxhjv during its first 430 days of evolution. AT2021ehb occurs in the nucleus of a galaxy […]


Continue.. The Tidal Disruption Event AT2021ehb: Evidence of Relativistic Disk Reflection, and Rapid Evolution of the Disk-Corona System

The complex dynamical past and future of double eclipsing binary CzeV343: misaligned orbits and period resonance

Kavli Affiliate: Michael M. Fausnaugh | First 5 Authors: Ondřej Pejcha, Pavel Cagaš, Camille Landri, Michael M. Fausnaugh, Gisella De Rosa | Summary: CzeV343 was previously identified as a candidate double eclipsing binary (2+2 quadruple), where the orbital periods of the two eclipsing binaries ($P_A approx 1.2$ days and $P_B approx 0.8$ days) lie very […]


Continue.. The complex dynamical past and future of double eclipsing binary CzeV343: misaligned orbits and period resonance

The complex dynamical past and future of double eclipsing binary CzeV343: misaligned orbits and period resonance

Kavli Affiliate: Michael M. Fausnaugh | First 5 Authors: Ondřej Pejcha, Pavel Cagaš, Camille Landri, Michael M. Fausnaugh, Gisella De Rosa | Summary: CzeV343 (=V849 Aur) was previously identified as a candidate double eclipsing binary (2+2 quadruple), where the orbital periods of the two eclipsing binaries ($P_A approx 1.2$ days and $P_B approx 0.8$ days) […]


Continue.. The complex dynamical past and future of double eclipsing binary CzeV343: misaligned orbits and period resonance

X-ray Halos around Massive Galaxies: Data and Theory

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Akos Bogdan, Mark Vogelsberger, , , | Summary: The presence of gaseous X-ray halos around massive galaxies is a basic prediction of all past and modern structure formation simulations. The importance of these X-ray halos is further emphasized by the fact that they retain signatures of the […]


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Chandra, HST/STIS, NICER, Swift, and TESS Detail the Flare Evolution of the Repeating Nuclear Transient ASASSN-14ko

Kavli Affiliate: Michael M. Fausnaugh | First 5 Authors: Anna V. Payne, Katie Auchettl, Benjamin J. Shappee, Christopher S. Kochanek, Patricia T. Boyd | Summary: ASASSN-14ko is a nuclear transient at the center of the AGN ESO 253-G003 that undergoes periodic flares. Optical flares were first observed in 2014 by the All-Sky Automated Survey for […]


Continue.. Chandra, HST/STIS, NICER, Swift, and TESS Detail the Flare Evolution of the Repeating Nuclear Transient ASASSN-14ko

Polarized X-rays Constrain The Disk-Jet Geometry in a Black Hole X-ray Binary

Kavli Affiliate: Herman L. Marshall | First 5 Authors: Henric Krawczynski, Fabio Muleri, Michal Dovčiak, Alexandra Veledina, Nicole Rodriguez Cavero | Summary: In a black hole X-ray binary (XRB) system, gas accreted from a normal star onto a black hole glows brightly in X-rays. We report on an observation of the XRB Cygnus X-1 (Cyg […]


Continue.. Polarized X-rays Constrain The Disk-Jet Geometry in a Black Hole X-ray Binary

X-ray performance of critical-angle transmission grating prototypes for the Arcus mission

Kavli Affiliate: Mark L. Schattenburg | First 5 Authors: Ralf K. Heilmann, Alexander R. Bruccoleri, Vadim Burwitz, Casey deRoo, Alan Garner | Summary: Arcus is a proposed soft x-ray grating spectrometer Explorer. It aims to explore cosmic feedback by mapping hot gases within and between galaxies and galaxy clusters and characterizing jets and winds from […]


Continue.. X-ray performance of critical-angle transmission grating prototypes for the Arcus mission

X-ray performance of critical-angle transmission grating prototypes for the Arcus mission

Kavli Affiliate: Ralf K. Heilmann | First 5 Authors: Ralf K. Heilmann, Alexander R. Bruccoleri, Vadim Burwitz, Casey deRoo, Alan Garner | Summary: Arcus is a proposed soft x-ray grating spectrometer Explorer. It aims to explore cosmic feedback by mapping hot gases within and between galaxies and galaxy clusters and characterizing jets and winds from […]


Continue.. X-ray performance of critical-angle transmission grating prototypes for the Arcus mission

X-ray performance of critical-angle transmission grating prototypes for the Arcus mission

Kavli Affiliate: Ralf K. Heilmann | First 5 Authors: Ralf K. Heilmann, Alexander R. Bruccoleri, Vadim Burwitz, Casey deRoo, Alan Garner | Summary: Arcus is a proposed soft x-ray grating spectrometer Explorer. It aims to explore cosmic feedback by mapping hot gases within and between galaxies and galaxy clusters and characterizing jets and winds from […]


Continue.. X-ray performance of critical-angle transmission grating prototypes for the Arcus mission

The formation of low surface brightness galaxies in the IllustrisTNG simulation

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Luis Enrique Pérez-Montaño, Vicente Rodriguez-Gomez, Bernardo Cervantes Sodi, Qirong Zhu, Annalisa Pillepich | Summary: We explore the nature of low surface brightness galaxies (LSBGs) in the hydrodynamic cosmological simulation TNG100 of the IllustrisTNG project, selecting a sample of LSBGs ($r$-band effective surface brightness $mu_r > 22.0$ mag […]


Continue.. The formation of low surface brightness galaxies in the IllustrisTNG simulation