Kavli Affiliate: Sara Seager | First 5 Authors: Carina M. Persson, Carina M. Persson, , , | Summary: We present the detection and characterisation of the TOI-1438 multi-planet system discovered by TESS. We collected a series of follow-up observations including high-spectral resolution observations with HARPS-N over a period of five years. Our modelling shows that […]

Kavli Affiliate: Scott A. Hughes | First 5 Authors: Joheen Chakraborty, Joheen Chakraborty, , , | Summary: Quasi-Periodic Eruptions (QPEs) are luminous, recurring X-ray outbursts from galactic nuclei, with timescales of hours to days. While their origin remains uncertain, leading models invoke accretion disk instabilities or the interaction of a massive black hole (MBH) with […]

Kavli Affiliate: Michael Fausnaugh | First 5 Authors: Victoria DiTomasso, Victoria DiTomasso, , , | Summary: We present the discovery of the planetary system orbiting the bright (V = 7.2), nearby (35 pc), Sun-like star HD 60779, which has a mass of 1.050 +/- 0.044 solar masses and a radius of 1.129 +/- 0.013 solar […]

Kavli Affiliate: J. S. Villasenor | First 5 Authors: J. Fernando Barbero G., J. Fernando Barbero G., , , | Summary: We show how the Husain-Kuchavr model can be understood as a Carrollian limit of the Holst term in the context of background-independent field theories described in terms of coframes and spin connections. We also […]

Kavli Affiliate: Sara Seager | First 5 Authors: , , , , | Summary: Many possible interior compositions exist for sub-Neptunes: ice-poor, ice-rich, and water-dominated interiors can all match the measured masses and radii. Motivated by recent theory of carbon-rich planet formation outside of the refractory organic carbon "soot line" and observations of carbon-rich protoplanetary […]

Kavli Affiliate: Robert Goeke | First 5 Authors: Eric D. Miller, Eric D. Miller, , , | Summary: AXIS, a Probe mission concept now in a Phase A study, will provide transformative studies of high-energy astrophysical phenomena thanks to its high-resolution X-ray spectral imaging. These capabilities are enabled by improvements to the mirror design that […]

Kavli Affiliate: Erin Kara | First 5 Authors: Arkadip Basak, Arkadip Basak, , , | Summary: Cygnus X-1 is a persistent, high-mass black hole X-ray binary (BHXRB) which in the hard state shows many similar properties to transient BHXRBs, along with intriguing differences, such as the lack of quasi-periodic oscillations. Here, we compare for the […]

Kavli Affiliate: David Shoemaker | First 5 Authors: Karan Jani, Karan Jani, , , | Summary: The Laser Interferometer Lunar Antenna (LILA) is a next-generation gravitational-wave (GW) facility on the Moon. By harnessing the Moon’s unique environment, LILA fills a critical observational gap in the mid-band GW spectrum ($0.1 – 10$ Hz) between terrestrial detectors […]

Kavli Affiliate: Sara Seager | First 5 Authors: , , , , | Summary: The discovery of thousands of exoplanets and the emergence of telescopes capable of exoplanet atmospheric characterization have intensified the search for habitable worlds. Due to selection biases, many exoplanets under study are planets deemed inhospitable because their surfaces are too warm […]

Kavli Affiliate: Lina Necib | First 5 Authors: Andrew Wetzel, Andrew Wetzel, , , | Summary: We describe the second data release (DR2) of the FIRE-2 cosmological zoom-in simulations of galaxy formation, from the Feedback In Realistic Environments (FIRE) project, available at http://flathub.flatironinstitute.org/fire. DR2 includes all snapshots for most simulations, starting at z ~ 99, […]