Analysis of the full Spitzer microlensing sample I: Dark remnant candidates and Gaia predictions

Kavli Affiliate: Michael M. Fausnaugh | First 5 Authors: Krzysztof A. Rybicki, Yossi Shvartzvald, Jennifer C. Yee, Sebastiano Calchi Novati, Eran O. Ofek | Summary: In the pursuit of understanding the population of stellar remnants within the Milky Way, we analyze the sample of $sim 950$ microlensing events observed by the Spitzer Space Telescope between […]


Continue.. Analysis of the full Spitzer microlensing sample I: Dark remnant candidates and Gaia predictions

Analysis of Crab X-ray Polarization using Deeper IXPE Observations

Kavli Affiliate: Herman L. Marshall | First 5 Authors: Josephine Wong, Tsunefumi Mizuno, Niccoló Bucciantini, Roger W. Romani, Yi-Jung Yang | Summary: We present Crab X-ray polarization measurements using IXPE data with a total exposure of 300ks, three times more than the initial 2022 discovery paper. Polarization is detected in three times more pulsar phase […]


Continue.. Analysis of Crab X-ray Polarization using Deeper IXPE Observations

Modeling X-Ray Multi-Reflection in Super-Eddington Winds

Kavli Affiliate: Erin Kara | First 5 Authors: Zijian Zhang, Lars Lund Thomsen, Lixin Dai, Christopher S. Reynolds, Javier A. García | Summary: It has been recently discovered that a few super-Eddington sources undergoing black hole super-Eddington accretion exhibit X-ray reflection signatures. In such new systems, one expects that the coronal X-ray emissions are mainly […]


Continue.. Modeling X-Ray Multi-Reflection in Super-Eddington Winds

The discovery of a nearby 421~s transient with CHIME/FRB/Pulsar

Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: Fengqiu Adam Dong, Tracy Clarke, Alice P. Curtin, Ajay Kumar, Ingrid Stairs | Summary: Neutron stars and white dwarfs are both dense remnants of post-main-sequence stars. Pulsars, magnetars and strongly magnetised white dwarfs have all been seen to been observed to exhibit coherent, pulsed radio emission […]


Continue.. The discovery of a nearby 421~s transient with CHIME/FRB/Pulsar

TOI 762 A b and TIC 46432937 b: Two Giant Planets Transiting M Dwarf Stars

Kavli Affiliate: George R. Ricker | First 5 Authors: Joel D. Hartman, Daniel Bayliss, Rafael Brahm, Edward M. Bryant, Andrés Jordán | Summary: We present the discovery of TOI 762 A b and TIC 46432937 b, two giant planets transiting M dwarf stars. Transits of both systems were first detected from observations by the NASA […]


Continue.. TOI 762 A b and TIC 46432937 b: Two Giant Planets Transiting M Dwarf Stars

TOI 762 A b and TIC 46432937 b: Two Giant Planets Transiting M Dwarf Stars

Kavli Affiliate: Sara Seager | First 5 Authors: Joel D. Hartman, Daniel Bayliss, Rafael Brahm, Edward M. Bryant, Andrés Jordán | Summary: We present the discovery of TOI 762 A b and TIC 46432937 b, two giant planets transiting M dwarf stars. Transits of both systems were first detected from observations by the NASA TESS […]


Continue.. TOI 762 A b and TIC 46432937 b: Two Giant Planets Transiting M Dwarf Stars

Unraveling the role of merger histories in the population of Insitu stars: linking IllustrisTNG cosmological simulation to H3 survey

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Razieh Emami, Lars Hernquist, Randall Smith, James F. Steiner, Grant Tremblay | Summary: We undertake a comprehensive investigation into the distribution of insitu stars within Milky Way-like galaxies, leveraging TNG50 simulations and comparing their predictions with data from the H3 survey. Our analysis reveals that 28% of […]


Continue.. Unraveling the role of merger histories in the population of Insitu stars: linking IllustrisTNG cosmological simulation to H3 survey

A NICER View of the Nearest and Brightest Millisecond Pulsar: PSR J0437$unicode{x2013}$4715

Kavli Affiliate: Ronald A. Remillard | First 5 Authors: Devarshi Choudhury, Tuomo Salmi, Serena Vinciguerra, Thomas E. Riley, Yves Kini | Summary: We report Bayesian inference of the mass, radius and hot X-ray emitting region properties – using data from the Neutron Star Interior Composition ExploreR (NICER) – for the brightest rotation-powered millisecond X-ray pulsar […]


Continue.. A NICER View of the Nearest and Brightest Millisecond Pulsar: PSR J0437$unicode{x2013}$4715

A NICER View of the Nearest and Brightest Millisecond Pulsar: PSR J0437$unicode{x2013}$4715

Kavli Affiliate: Ronald A. Remillard | First 5 Authors: Devarshi Choudhury, Tuomo Salmi, Serena Vinciguerra, Thomas E. Riley, Yves Kini | Summary: We report Bayesian inference of the mass, radius and hot X-ray emitting region properties – using data from the Neutron Star Interior Composition ExploreR (NICER) – for the brightest rotation-powered millisecond X-ray pulsar […]


Continue.. A NICER View of the Nearest and Brightest Millisecond Pulsar: PSR J0437$unicode{x2013}$4715

TESS Investigation — Demographics of Young Exoplanets (TI-DYE) II: a second giant planet in the 17-Myr system HIP 67522

Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Madyson G. Barber, Pa Chia Thao, Andrew W. Mann, Andrew Vanderburg, Mayuko Mori | Summary: The youngest ($<$50 Myr) planets are vital to understand planet formation and early evolution. The 17 Myr system HIP 67522 is already known to host a giant ($simeq$10$R_oplus$) planet on a tight […]


Continue.. TESS Investigation — Demographics of Young Exoplanets (TI-DYE) II: a second giant planet in the 17-Myr system HIP 67522