Kavli Affiliate: Roger D. Blandford | First 5 Authors: Andrew G. Sullivan, Andrew G. Sullivan, , , | Summary: Supermassive black hole binary systems (SMBHBs) are thought to emit the recently discovered nHz gravitational wave background; however, not a single individual nHz source has been confirmed to date. Long-term radio-monitoring at the Owens Valley Radio […]
Kavli Affiliate: Noah Kurinsky | First 5 Authors: Jadyn Anczarski, Jadyn Anczarski, , , | Summary: The SPLENDOR Collaboration studies novel narrow-gap semiconductors and engineered a substrate agnostic detector platform to achieve $mathcalO$(meV) energy sensitivity designed for low mass dark matter searches. This was achieved using low-capacitance and low-noise commercial CryoHEMTs in a split-stage topology […]
Kavli Affiliate: Peter W. Graham | First 5 Authors: Peter W. Graham, Peter W. Graham, , , | Summary: We use the dynamical heating of stars in ultrafaint dwarf (UFD) galaxies to set limits on Massive Compact Halo Objects (MACHOs). In our analysis we study the robustness of the bounds under uncertainties in key UFD […]
Kavli Affiliate: Zeeshan Ahmed | First 5 Authors: Thomas P. Satterthwaite, Thomas P. Satterthwaite, , , | Summary: Fulfilling the science goals of the Simons Observatory, a state-of-the-art cosmic microwave background (CMB) experiment, has required deploying tens of thousands of superconducting bolometers. Reading out data from the observatory’s more than 67,000 transition-edge sensor (TES) detectors […]
Kavli Affiliate: Noah Kurinsky | First 5 Authors: Dylan J Temples, Dylan J Temples, , , | Summary: A Kinetic Inductance Phonon-Mediated Detector is a calorimeter that uses kinetic inductance detectors to read out phonon signals from the device substrate. We have established a consortium comprising university and national lab groups dedicated to advancing the […]
Kavli Affiliate: Risa H. Wechsler | First 5 Authors: Yasmeen Asali, Yasmeen Asali, , , | Summary: We investigate how Milky Way-like environments influence the sizes and structural properties of low-mass galaxies by comparing satellites of Milky Way analogs from the Satellites Around Galactic Analogs (SAGA) Survey with two control samples: an environmentally agnostic population […]
Kavli Affiliate: Eli S. Rykoff | First 5 Authors: Yuanyuan Zhang, Yuanyuan Zhang, , , | Summary: We investigate a splashback-like feature in the outer region of central galaxies (CGs) in clusters. This feature is detected as a "dip" in the radial slope of the CG surface brightness, derived through the stacking of Dark Energy […]
Kavli Affiliate: Risa H. Wechsler | First 5 Authors: Chun-Hao To, Chun-Hao To, , , | Summary: We present the first detection of weak gravitational lensing around spectroscopically confirmed dwarf galaxies, using the large overlap between DESI DR1 spectroscopic data and DECADE/DES weak lensing catalogs. A clean dwarf galaxy sample with well-defined redshift and stellar […]
Kavli Affiliate: Risa H. Wechsler | First 5 Authors: Erin Kado-Fong, Erin Kado-Fong, , , | Summary: Recent efforts have extended our view of the number and properties of satellite galaxies beyond the Local Group firmly down to $rm M_starsim 10^6 M_odot$. A similarly complete view of the field dwarf population has lagged behind. Using […]
Kavli Affiliate: Risa H. Wechsler | First 5 Authors: Erin Kado-Fong, Erin Kado-Fong, , , | Summary: Recent efforts have extended our view of the number and properties of satellite galaxies beyond the Local Group firmly down to $rm M_starsim 10^6 M_odot$. A similarly complete view of the field dwarf population has lagged behind. Using […]