OGLE-2015-BLG-0845L: A low-mass M dwarf from the microlensing parallax and xallarap effects

Kavli Affiliate: Michael Fausnaugh | First 5 Authors: Zhecheng Hu, Wei Zhu, Andrew Gould, Andrzej Udalski, Takahiro Sumi | Summary: We present the analysis of the microlensing event OGLE-2015-BLG-0845, which was affected by both the microlensing parallax and xallarap effects. The former was detected via the simultaneous observations from the ground and Spitzer, and the […]


Continue.. OGLE-2015-BLG-0845L: A low-mass M dwarf from the microlensing parallax and xallarap effects

The Rise of the $R$-Process in the Gaia-Sausage/Enceladus Dwarf Galaxy

Kavli Affiliate: Anna Frebel | First 5 Authors: Xiaowei Ou, Alexander P. Ji, Anna Frebel, Rohan P. Naidu, Guilherme Limberg | Summary: Neutron star mergers (NSMs) produce copious amounts of heavy r-process elements after a time delayed inspiral process. Once NSMs are present in a galaxy, r-process elements, such as Eu, are expected to significantly […]


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Constraining Near-Simultaneous Radio Emission from Short Gamma-ray Bursts using CHIME/FRB

Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: Alice P. Curtin, Sloane Sirota, Victoria M. Kaspi, Shriharsh P. Tendulkar, Mohit Bhardwaj | Summary: We use the Canadian Hydrogen Intensity Mapping Experiment (CHIME) Fast Radio Burst (FRB) Project to search for FRBs that are temporally and spatially coincident with gamma-ray bursts (GRBs) occurring between 2018 […]


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Microlensing near macro-caustics

Kavli Affiliate: Paul L. Schechter | First 5 Authors: Luke Weisenbach, Timo Anguita, Jordi Miralda-Escudé, Masamune Oguri, Prasenjit Saha | Summary: Microlensing near macro-caustics is a complex phenomenon in which swarms of micro-images produced by micro-caustics form on both sides of a macro-critical curve. Recent discoveries of highly magnified images of individual stars in massive […]


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Photon Counting Interferometry to Detect Geontropic Space-Time Fluctuations with GQuEST

Kavli Affiliate: Lee McCuller | First 5 Authors: Sander M. Vermeulen, Torrey Cullen, Daniel Grass, Ian A. O. MacMillan, Alexander J. Ramirez | Summary: The GQuEST (Gravity from the Quantum Entanglement of Space-Time) experiment uses tabletop-scale Michelson laser interferometers to probe for fluctuations in space-time. We present an interferometer design featuring a novel photon counting […]


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Tidal heating as a discriminator for horizons in equatorial eccentric extreme mass ratio inspirals

Kavli Affiliate: Scott A. Hughes | First 5 Authors: Sayak Datta, Richard Brito, Scott A. Hughes, Talya Klinger, Paolo Pani | Summary: Tidal heating in a binary black hole system is driven by the absorption of energy and angular momentum by the black hole’s horizon. Previous works have shown that this phenomenon becomes particularly significant […]


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The black hole low mass X-ray binary V404 Cygni is part of a wide hierarchical triple, and formed without a kick

Kavli Affiliate: Anna Frebel | First 5 Authors: Kevin B. Burdge, Kareem El-Badry, Erin Kara, Claude Canizares, Deepto Chakrabarty | Summary: Evidence suggests that when compact objects such as black holes and neutron stars form, they may receive a “natal kick,” where the stellar remnant gains momentum. Observational evidence for neutron star kicks is substantial, […]


Continue.. The black hole low mass X-ray binary V404 Cygni is part of a wide hierarchical triple, and formed without a kick

Repeating Nuclear Transients as Candidate Electromagnetic Counterparts of LISA Extreme Mass Ratio Inspirals

Kavli Affiliate: Dheeraj R. Pasham | First 5 Authors: Shubham Kejriwal, Vojtech Witzany, Michal Zajacek, Dheeraj R. Pasham, Alvin J. K. Chua | Summary: Extreme-mass-ratio inspirals (EMRIs) are one of the primary targets for the recently adopted millihertz gravitational-wave (GW) observatory LISA. Some previous studies have argued that a fraction of all EMRIs form in […]


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BD-14 3065b (TOI-4987b): from giant planet to brown dwarf: evidence for deuterium burning in old age?

Kavli Affiliate: Avi Shporer | First 5 Authors: Ján Šubjak, David W. Latham, Samuel N. Quinn, Perry Berlind, Michael L. Calkins | Summary: The present study reports the confirmation of BD-14 3065b, a transiting planet/brown dwarf in a triple-star system, with a mass near the deuterium burning boundary. BD-14 3065b has the largest radius observed […]


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BD-14 3065b (TOI-4987b): from giant planet to brown dwarf: evidence for deuterium burning in old age?

Kavli Affiliate: Sara Seager | First 5 Authors: Ján Šubjak, David W. Latham, Samuel N. Quinn, Perry Berlind, Michael L. Calkins | Summary: The present study reports the confirmation of BD-14 3065b, a transiting planet/brown dwarf in a triple-star system, with a mass near the deuterium burning boundary. BD-14 3065b has the largest radius observed […]


Continue.. BD-14 3065b (TOI-4987b): from giant planet to brown dwarf: evidence for deuterium burning in old age?