Polarization Leakage and the IXPE PSF

Kavli Affiliate: Roger W. Romani | First 5 Authors: Jack T. Dinsmore, Roger W. Romani, , , | Summary: By measuring photoelectron tracks, the gas pixel detectors of the Imaging X-ray Polarimetry Explorer satellite provide estimates of the photon detection location and its electric vector position angle (EVPA). However, imperfections in reconstructing event positions blur […]


Continue.. Polarization Leakage and the IXPE PSF

Polarization Leakage and the IXPE PSF

Kavli Affiliate: Roger W. Romani | First 5 Authors: Jack T. Dinsmore, Roger W. Romani, , , | Summary: By measuring photoelectron tracks, the gas pixel detectors of the Imaging X-ray Polarimetry Explorer satellite provide estimates of the photon detection location and its electric vector position angle (EVPA). However, imperfections in reconstructing event positions blur […]


Continue.. Polarization Leakage and the IXPE PSF

Highly-coherent quasi-periodic oscillations in the ‘heartbeat’ black hole X-ray binary IGR J17091-3624

Kavli Affiliate: Erin Kara | First 5 Authors: Jingyi Wang, Erin Kara, Jeroen Homan, James F. Steiner, Diego Altamirano | Summary: IGR J17091-3624 is a black hole X-ray binary (BHXB), often referred to as the ‘twin’ of GRS 1915+105 because it is the only other known BHXB that can show exotic ‘heartbeat’-like variability that is […]


Continue.. Highly-coherent quasi-periodic oscillations in the ‘heartbeat’ black hole X-ray binary IGR J17091-3624

The 2022 Outburst of IGR J17091-3624: Connecting the exotic GRS 1915+105 to standard black hole X-ray binaries

Kavli Affiliate: Erin Kara | First 5 Authors: Jingyi Wang, Erin Kara, Javier A. García, Diego Altamirano, Tomaso Belloni | Summary: While the standard X-ray variability of black hole X-ray binaries (BHXBs) is stochastic and noisy, there are two known BHXBs that exhibit exotic `heartbeat’-like variability in their light curves: GRS 1915+105 and IGR J17091-3624. […]


Continue.. The 2022 Outburst of IGR J17091-3624: Connecting the exotic GRS 1915+105 to standard black hole X-ray binaries

COOL-LAMPS VI: Lens model and New Constraints on the Properties of COOL J1241+2219, a Bright z = 5 Lyman Break Galaxy and its z = 1 Cluster Lens

Kavli Affiliate: Michael D. Gladders | First 5 Authors: Maxwell Klein, Keren Sharon, Kate Napier, Michael D. Gladders, Gourav Khullar | Summary: We present a strong lensing analysis of COOL J1241+2219, the brightest known gravitationally lensed galaxy at $z geq 5$, based on new multi-band Hubble Space Telescope (HST) imaging data. The lensed galaxy has […]


Continue.. COOL-LAMPS VI: Lens model and New Constraints on the Properties of COOL J1241+2219, a Bright z = 5 Lyman Break Galaxy and its z = 1 Cluster Lens

The Mass Dependence of Hα Emission and Stellar Spindown for Fully Convective M Dwarfs

Kavli Affiliate: David Charbonneau | First 5 Authors: Emily K. Pass, David Charbonneau, David W. Latham, Perry Berlind, Michael L. Calkins | Summary: Fully convective M dwarfs typically remain rapidly rotating and magnetically active for billions of years, followed by an abrupt and mass-dependent transition to slow rotation and quiescence. A robust understanding of this […]


Continue.. The Mass Dependence of Hα Emission and Stellar Spindown for Fully Convective M Dwarfs

WorldDreamer: Towards General World Models for Video Generation via Predicting Masked Tokens

Kavli Affiliate: Zheng Zhu | First 5 Authors: Xiaofeng Wang, Zheng Zhu, Guan Huang, Boyuan Wang, Xinze Chen | Summary: World models play a crucial role in understanding and predicting the dynamics of the world, which is essential for video generation. However, existing world models are confined to specific scenarios such as gaming or driving, […]


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QCD challenges from pp to AA collisions — 4th edition

Kavli Affiliate: Jing Wang | First 5 Authors: Javira Altmann, Carlota Andres, Anton Andronic, Federico Antinori, Pietro Antonioli | Summary: This paper is a write-up of the ideas that were presented, developed and discussed at the fourth International Workshop on QCD Challenges from pp to AA, which took place in February 2023 in Padua, Italy. […]


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Predicting Viral Rumors and Vulnerable Users for Infodemic Surveillance

Kavli Affiliate: Wei Gao | First 5 Authors: Xuan Zhang, Wei Gao, , , | Summary: In the age of the infodemic, it is crucial to have tools for effectively monitoring the spread of rampant rumors that can quickly go viral, as well as identifying vulnerable users who may be more susceptible to spreading such […]


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A long-period transiting substellar companion in the super-Jupiters to brown dwarfs mass regime and a prototypical warm-Jupiter detected by TESS

Kavli Affiliate: Christopher J. Burke | First 5 Authors: Matias I. Jones, Yared Reinarz, Rafael Brahm, Marcelo Tala Pinto, Jan Eberhardt | Summary: We report on the confirmation and follow-up characterization of two long-period transiting substellar companions on low-eccentricity orbits around TIC 4672985 and TOI-2529, whose transit events were detected by the TESS space mission. […]


Continue.. A long-period transiting substellar companion in the super-Jupiters to brown dwarfs mass regime and a prototypical warm-Jupiter detected by TESS