A long-duration superflare on the K giant HD 251108

Kavli Affiliate: Michael Fausnaugh | First 5 Authors: Hans Moritz Günther, Dheeraj Pasham, Alexander Binks, Stefan Czesla, Teruaki Enoto | Summary: Many giant stars are magnetically active, which causes rotational variability, chromospheric emission lines, and X-ray emission. Large outbursts in these emission features can set limits on the magnetic field strength and thus constrain the […]


Continue.. A long-duration superflare on the K giant HD 251108

The Stellar Initial Mass Function of Early Dark Matter-free Gas Objects

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: William Lake, Michael Y. Grudić, Smadar Naoz, Naoki Yoshida, Claire E. Williams | Summary: To date, JWST has detected the earliest known star clusters in our Universe (Adamo et al. 2024, Messa et al. 2024, Vanzella et al. 2024, Mowla et al. 2024). They appear to be […]


Continue.. The Stellar Initial Mass Function of Early Dark Matter-free Gas Objects

AGN STORM 2: X. The origin of the interband continuum delays in Mrk 817

Kavli Affiliate: Erin Kara | First 5 Authors: Hagai Netzer, Michael R. Goad, Aaron J. Barth, Edward M. Cackett, Keith Horne | Summary: The local (z=0.0315) AGN Mrk 817, was monitored over more than 500 days with space-borne and ground-based instruments as part of a large international campaign AGN STORM 2. Here, we present a […]


Continue.. AGN STORM 2: X. The origin of the interband continuum delays in Mrk 817

All the Little Things in Abell 2744: $>$1000 Gravitationally Lensed Dwarf Galaxies at $z=0-9$ from JWST NIRCam Grism Spectroscopy

Kavli Affiliate: Robert A. Simcoe | First 5 Authors: Rohan P. Naidu, Jorryt Matthee, Ivan Kramarenko, Andrea Weibel, Gabriel Brammer | Summary: Dwarf galaxies hold the key to crucial frontiers of astrophysics, however, their faintness renders spectroscopy challenging. Here we present the JWST Cycle 2 survey, All the Little Things (ALT, PID 3516), which is […]


Continue.. All the Little Things in Abell 2744: $>$1000 Gravitationally Lensed Dwarf Galaxies at $z=0-9$ from JWST NIRCam Grism Spectroscopy

TIC 290061484: A Triply Eclipsing Triple System with the Shortest Known Outer Period of 24.5 Days

Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Veselin B. Kostov, Saul A. Rappaport, Tamas Borkovits, Brian P. Powell, Robert Gagliano | Summary: We have discovered a triply eclipsing triple-star system, TIC 290061484, with the shortest known outer period, Pout, of only 24.5 days. This "eclipses" the previous record set by lambda Tauri at 33.02 […]


Continue.. TIC 290061484: A Triply Eclipsing Triple System with the Shortest Known Outer Period of 24.5 Days

TIC 290061484: A Triply Eclipsing Triple System with the Shortest Known Outer Period of 24.5 Days

Kavli Affiliate: Saul A. Rappaport | First 5 Authors: Veselin B. Kostov, Saul A. Rappaport, Tamas Borkovits, Brian P. Powell, Robert Gagliano | Summary: We have discovered a triply eclipsing triple-star system, TIC 290061484, with the shortest known outer period, Pout, of only 24.5 days. This "eclipses" the previous record set by lambda Tauri at […]


Continue.. TIC 290061484: A Triply Eclipsing Triple System with the Shortest Known Outer Period of 24.5 Days

Characterizing the Broadband Reflection Spectrum of MAXI J1803-298 During its 2021 Outburst with NuSTAR and NICER

Kavli Affiliate: Erin Kara | First 5 Authors: Oluwashina Adegoke, Javier Garcia, Riley Connors, Yuanze Ding, Guglielmo Mastroserio | Summary: MAXI J1803-298 is a transient black hole candidate discovered in May of 2021 during an outburst that lasted several months. Multiple X-ray observations reveal recurring "dipping" intervals in several of its light curves, particularly during […]


Continue.. Characterizing the Broadband Reflection Spectrum of MAXI J1803-298 During its 2021 Outburst with NuSTAR and NICER

Criteria for identifying and evaluating locations that could potentially host the Cosmic Explorer observatories

Kavli Affiliate: David H. Shoemaker | First 5 Authors: Kathryne J. Daniel, Joshua R. Smith, Stefan Ballmer, Warren Bristol, Jennifer C. Driggers | Summary: Cosmic Explorer (CE) is a next-generation ground-based gravitational-wave observatory that is being designed in the 2020s and is envisioned to begin operations in the 2030s together with the Einstein Telescope in […]


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Detecting Acoherence in Radiation Fields

Kavli Affiliate: Frank Wilczek | First 5 Authors: Sreenath K. Manikandan, Frank Wilczek, , , | Summary: We propose simple quantitative criteria, based on counting statistics in resonant harmonic detectors, that probe the quantum mechanical character of radiation fields. They provide, in particular, practical means to test the null hypothesis that a given field is […]


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