High-cadence Timing of Binary Pulsars with CHIME

Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: Chia Min Tan, Emmanuel Fonseca, Kathryn Crowter, Fengqiu Adam Dong, Victoria M. Kaspi | Summary: We performed near-daily observations on the binary pulsars PSR J0218+4232, PSR J1518+4904 and PSR J2023+2853 with the Canadian Hydrogen Intensity Mapping Experiment (CHIME). For the first time, we detected the Shapiro […]


Continue.. High-cadence Timing of Binary Pulsars with CHIME

How the Galaxy-Halo Connection Depends on Large-Scale Environment

Kavli Affiliate: Risa H. Wechsler | First 5 Authors: John F. Wu, Christian Kragh Jespersen, Risa H. Wechsler, , | Summary: We investigate the connection between galaxies, dark matter halos, and their large-scale environments with Illustris TNG300 hydrodynamic simulation data. We predict stellar masses from subhalo properties to test two types of machine learning (ML) […]


Continue.. How the Galaxy-Halo Connection Depends on Large-Scale Environment

How the Galaxy-Halo Connection Depends on Large-Scale Environment

Kavli Affiliate: Risa H. Wechsler | First 5 Authors: John F. Wu, Christian Kragh Jespersen, Risa H. Wechsler, , | Summary: We investigate the connection between galaxies, dark matter halos, and their large-scale environments at $z=0$ with Illustris TNG300 hydrodynamic simulation data. We predict stellar masses from subhalo properties to test two types of machine […]


Continue.. How the Galaxy-Halo Connection Depends on Large-Scale Environment

Ephemeris Matching Reveals False Positive Validated and Candidate Planets from the K2 Mission

Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Drake A. Lehmann, Andrew Vanderburg, , , | Summary: Data from the Kepler space telescope have led to the discovery of thousands of planet candidates. Most of these candidates are likely to be real exoplanets, but a significant number of false positives still contaminate the sample, especially […]


Continue.. Ephemeris Matching Reveals False Positive Validated and Candidate Planets from the K2 Mission

Ephemeris Matching Reveals False Positive Validated and Candidate Planets from the K2 Mission

Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Drake A. Lehmann, Andrew Vanderburg, , , | Summary: Data from the Kepler space telescope have led to the discovery of thousands of planet candidates. Most of these candidates are likely to be real exoplanets, but a significant number of false positives still contaminate the sample, especially […]


Continue.. Ephemeris Matching Reveals False Positive Validated and Candidate Planets from the K2 Mission

CHIME/FRB Outriggers: KKO Station System and Commissioning Results

Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: Adam E. Lanman, Shion Andrew, Mattias Lazda, Vishwangi Shah, Mandana Amiri | Summary: Localizing fast radio bursts (FRBs) to their host galaxies is an essential step to better understanding their origins and using them as cosmic probes. The CHIME/FRB Outrigger program aims to add VLBI-localization capabilities […]


Continue.. CHIME/FRB Outriggers: KKO Station System and Commissioning Results

CHIME/FRB Outriggers: KKO Station System and Commissioning Results

Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: Adam E. Lanman, Shion Andrew, Mattias Lazda, Vishwangi Shah, Mandana Amiri | Summary: Localizing fast radio bursts (FRBs) to their host galaxies is an essential step to better understanding their origins and using them as cosmic probes. The CHIME/FRB Outrigger program aims to add VLBI-localization capabilities […]


Continue.. CHIME/FRB Outriggers: KKO Station System and Commissioning Results

The TESS-Keck Survey XXI: 13 New Planets and Homogeneous Properties for 21 Subgiant Systems

Kavli Affiliate: Roland Vanderspek | First 5 Authors: Ashley Chontos, Daniel Huber, Samuel K. Grunblatt, Nicholas Saunders, Joshua N. Winn | Summary: We present a dedicated transit and radial velocity survey of planets orbiting subgiant stars observed by the TESS Mission. Using $sim$$16$ nights on Keck/HIRES, we confirm and characterize $12$ new transiting planets — […]


Continue.. The TESS-Keck Survey XXI: 13 New Planets and Homogeneous Properties for 21 Subgiant Systems

The TESS-Keck Survey XXI: 13 New Planets and Homogeneous Properties for 21 Subgiant Systems

Kavli Affiliate: Roland Vanderspek | First 5 Authors: Ashley Chontos, Daniel Huber, Samuel K. Grunblatt, Nicholas Saunders, Joshua N. Winn | Summary: We present a dedicated transit and radial velocity survey of planets orbiting subgiant stars observed by the TESS Mission. Using $sim$$16$ nights on Keck/HIRES, we confirm and characterize $12$ new transiting planets — […]


Continue.. The TESS-Keck Survey XXI: 13 New Planets and Homogeneous Properties for 21 Subgiant Systems

Approximate Analytical Solutions for the Circular Restricted Three-Body Problem Including Non-Hamiltonian Solar Radiation Pressure

Kavli Affiliate: David W. Miller | First 5 Authors: Hailee Hettrick, David W. Miller, Begum Cannataro, , | Summary: The circular restricted three-body problem (CR3BP) with solar radiation pressure (SRP) has often been analyzed with assumptions made on a spacecraft’s attitude, such that the problem remains Hamiltonian. These assumptions are unsatisfactorily limiting for a starshade […]


Continue.. Approximate Analytical Solutions for the Circular Restricted Three-Body Problem Including Non-Hamiltonian Solar Radiation Pressure