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

Posted by dbos MIT

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

A Catalog of Pulsar X-ray Filaments

Posted by dbos Stanford

Kavli Affiliate: Roger W. Romani | First 5 Authors: Jack T. Dinsmore, Roger W. Romani, , , | Summary: We present the first Chandra X-ray Observatory (CXO) catalog of "pulsar X-ray filaments," or "misaligned outflows." These are linear, synchrotron radiating features powered by ultra-relativistic electrons and positrons that escape from bow shock pulsars. The filaments […]


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

Posted by dbos MIT

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

Posted by dbos MIT

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

Estimating Atmospheric Wind Speeds From Gemini Planet Imager AO Telemetry

Posted by dbos Stanford

Kavli Affiliate: Bruce Macintosh | First 5 Authors: Zhenxi Du, Saavidra Perera, Daniel Levinstein, Quinn Konopacky, Alex Madurowicz | Summary: The Earth’s atmosphere is comprised of turbulent layers that result in speckled and blurry images from ground-based visible and infrared observations. Adaptive Optics (AO) systems are employed to measure the perturbed wavefront with a wavefront […]


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

Posted by dbos MIT

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

Aemulus $ν$: Precision halo mass functions in w$ν$CDM cosmologies

Posted by dbos Stanford

Kavli Affiliate: Risa H. Wechsler | First 5 Authors: Delon Shen, Nickolas Kokron, Joseph DeRose, Jeremy Tinker, Risa H. Wechsler | Summary: Precise and accurate predictions of the halo mass function for cluster mass scales in $wnu{rm CDM}$ cosmologies are crucial for extracting robust and unbiased cosmological information from upcoming galaxy cluster surveys. Here, we […]


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Aemulus $ν$: Precision halo mass functions in w$ν$CDM cosmologies

Posted by klaurent Stanford

Kavli Affiliate: Risa H. Wechsler | First 5 Authors: Delon Shen, Nickolas Kokron, Joseph DeRose, Jeremy Tinker, Risa H. Wechsler | Summary: Precise and accurate predictions of the halo mass function for cluster mass scales in $wnu{rm CDM}$ cosmologies are crucial for extracting robust and unbiased cosmological information from upcoming galaxy cluster surveys. Here, we […]


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Cosmological constraints using Minkowski functionals from the first year data of the Hyper Suprime-Cam

Posted by dbos Tokyo

Kavli Affiliate: Jia Liu | First 5 Authors: Joaquin Armijo, Gabriela A. Marques, Camila P. Novaes, Leander Thiele, Jessica A. Cowell | Summary: We use Minkowski functionals to analyse weak lensing convergence maps from the first-year data release of the Subaru Hyper Suprime-Cam (HSC-Y1) survey. Minkowski functionals provide a description of the morphological properties of […]


Continue.. Cosmological constraints using Minkowski functionals from the first year data of the Hyper Suprime-Cam

Cosmological constraints using Minkowski functionals from the first year data of the Hyper Suprime-Cam

Posted by dbos Tokyo

Kavli Affiliate: Jia Liu | First 5 Authors: Joaquin Armijo, Gabriela A. Marques, Camila P. Novaes, Leander Thiele, Jessica A. Cowell | Summary: We use Minkowski functionals to analyse weak lensing convergence maps from the first-year data release of the Subaru Hyper Suprime-Cam (HSC-Y1) survey. Minkowski functionals provide a description of the morphological properties of […]


Continue.. Cosmological constraints using Minkowski functionals from the first year data of the Hyper Suprime-Cam