The Receding Cosmic Shoreline of Mid-to-Late M Dwarfs: Measurements of Active Lifetimes Worsen Challenges for Atmosphere Retention by Rocky Exoplanets

Kavli Affiliate: David Charbonneau | First 5 Authors: Emily K Pass, David Charbonneau, Andrew Vanderburg, , | Summary: Detecting and characterizing the atmospheres of terrestrial exoplanets is a key goal of exoplanetary astronomy, one that may now be within reach given the upcoming campaign to conduct a large-scale survey of rocky M-dwarf worlds with the […]


Continue.. The Receding Cosmic Shoreline of Mid-to-Late M Dwarfs: Measurements of Active Lifetimes Worsen Challenges for Atmosphere Retention by Rocky Exoplanets

The dearth of high-mass hydrogen-atmosphere metal-polluted white dwarfs within 40 pc

Kavli Affiliate: David Charbonneau | First 5 Authors: Tim Cunningham, Pier-Emmanuel Tremblay, Mairi O’Brien, Evan B. Bauer, Mark A. Hollands | Summary: We present a population synthesis model which addresses the different mass distributions of the metal-polluted and non-metal-polluted hydrogen-atmosphere white dwarfs identified in volume-limited samples. Specifically, metal-pollution has been observed to be rare in […]


Continue.. The dearth of high-mass hydrogen-atmosphere metal-polluted white dwarfs within 40 pc

TOI-6324b: An Earth-Mass Ultra-Short-Period Planet Transiting a Nearby M Dwarf

Kavli Affiliate: David Charbonneau | First 5 Authors: Rena A. Lee, Fei Dai, Andrew W. Howard, Samuel Halverson, Jonathan Gomez Barrientos | Summary: We report the confirmation of TOI-6324 b, an Earth-sized (1.059 $pm$ 0.041 R$_oplus$) ultra-short-period (USP) planet orbiting a nearby ($sim$20 pc) M dwarf. Using the newly commissioned Keck Planet Finder (KPF) spectrograph, […]


Continue.. TOI-6324b: An Earth-Mass Ultra-Short-Period Planet Transiting a Nearby M Dwarf

TOI-6324b: An Earth-Mass Ultra-Short-Period Planet Transiting a Nearby M Dwarf

Kavli Affiliate: David Charbonneau | First 5 Authors: Rena A. Lee, Fei Dai, Andrew W. Howard, Samuel Halverson, Jonathan Gomez Barrientos | Summary: We report the confirmation of TOI-6324 b, an Earth-sized (1.059 $pm$ 0.041 R$_oplus$) ultra-short-period (USP) planet orbiting a nearby ($sim$20 pc) M dwarf. Using the newly commissioned Keck Planet Finder (KPF) spectrograph, […]


Continue.. TOI-6324b: An Earth-Mass Ultra-Short-Period Planet Transiting a Nearby M Dwarf

Expansion properties of the young supernova type Iax remnant Pa 30 revealed

Kavli Affiliate: David Charbonneau | First 5 Authors: Tim Cunningham, Ilaria Caiazzo, Nikolaus Z. Prusinski, James Fuller, John C. Raymond | Summary: The recently discovered Pa 30 nebula, the putative type Iax supernova remnant associated with the historical supernova of 1181 AD, shows puzzling characteristics that make it unique among known supernova remnants. In particular, […]


Continue.. Expansion properties of the young supernova type Iax remnant Pa 30 revealed

Off-axis Hartmann wavefront sensing for the GMT-Consortium Large Earth Finder (G-CLEF) red camera optics

Kavli Affiliate: David Charbonneau | First 5 Authors: Matthew C. H. Leung, Colby A. Jurgenson, Andrew Szentgyorgyi, Brian McLeod, Cem Onyuksel | Summary: The Hartmann test is a method used to measure the wavefront error in a focal optical system, wherein a mask with a pattern of small holes is placed at the system’s aperture […]


Continue.. Off-axis Hartmann wavefront sensing for the GMT-Consortium Large Earth Finder (G-CLEF) red camera optics

Exploring the directly imaged HD 1160 system through spectroscopic characterisation and high-cadence variability monitoring

Kavli Affiliate: David Charbonneau | First 5 Authors: Ben J. Sutlieff, Jayne L. Birkby, Jordan M. Stone, Annelotte Derkink, Frank Backs | Summary: The time variability and spectra of directly imaged companions provide insight into their physical properties and atmospheric dynamics. We present follow-up R~40 spectrophotometric monitoring of red companion HD 1160 B at 2.8-4.2 […]


Continue.. Exploring the directly imaged HD 1160 system through spectroscopic characterisation and high-cadence variability monitoring

Exploring the directly imaged HD 1160 system through spectroscopic characterization and high-cadence variability monitoring

Kavli Affiliate: David Charbonneau | First 5 Authors: Ben J. Sutlieff, Jayne L. Birkby, Jordan M. Stone, Annelotte Derkink, Frank Backs | Summary: The time variability and spectra of directly imaged companions provide insight into their physical properties and atmospheric dynamics. We present follow-up R~40 spectrophotometric monitoring of red companion HD 1160 B at 2.8-4.2 […]


Continue.. Exploring the directly imaged HD 1160 system through spectroscopic characterization and high-cadence variability monitoring

Collective Bayesian Decision-Making in a Swarm of Miniaturized Robots for Surface Inspection

Kavli Affiliate: Radhika Nagpal | First 5 Authors: Thiemen Siemensma, Darren Chiu, Sneha Ramshanker, Radhika Nagpal, Bahar Haghighat | Summary: Robot swarms can effectively serve a variety of sensing and inspection applications. Certain inspection tasks require a binary classification decision. This work presents an experimental setup for a surface inspection task based on vibration sensing […]


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Data-driven quasiconformal morphodynamic flows

Kavli Affiliate: L. Mahadevan | First 5 Authors: Salem Mosleh, Gary P. T. Choi, L. Mahadevan, , | Summary: Temporal imaging of biological epithelial structures yields shape data at discrete time points, leading to a natural question: how can we reconstruct the most likely path of growth patterns consistent with these discrete observations? We present […]


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