Kavli Affiliate: Daniel E. Holz | First 5 Authors: Alexandra G. Hanselman, Aditya Vijaykumar, Maya Fishbach, Daniel E. Holz, | Summary: The discovery of GW170817 provided the first direct gravitational-wave measurement of the Hubble constant, $H_0$, demonstrating the potential power of standard-siren cosmology. The dark siren approach can be utilized for gravitational-wave sources in the […]
Kavli Affiliate: Robert Simcoe | First 5 Authors: Charlotte Myers, Kishalay De, Lin Yan, Jacob E. Jencson, Nicholas Earley | Summary: While core-collapse supernovae (SNe) often show early and consistent signs of circumstellar (CSM) interaction, some exhibit delayed signatures due to interaction with distant material around the progenitor star. Here we present the discovery in […]
Kavli Affiliate: T. Higuchi | First 5 Authors: Belle II Collaboration, I. Adachi, K. Adamczyk, L. Aggarwal, H. Aihara | Summary: We present a measurement of the ratio $R_mu = mathcal{B}(tau^-to mu^-barnu_munu_tau) / mathcal{B}(tau^-to e^-barnu_enu_tau)$ of branching fractions $mathcal{B}$ of the $tau$ lepton decaying to muons or electrons using data collected with the Belle II […]
Kavli Affiliate: T. Higuchi | First 5 Authors: Belle II Collaboration, I. Adachi, K. Adamczyk, L. Aggarwal, H. Aihara | Summary: We present a measurement of the ratio $R_mu = mathcal{B}(tau^-to mu^-barnu_munu_tau) / mathcal{B}(tau^-to e^-barnu_enu_tau)$ of branching fractions $mathcal{B}$ of the $tau$ lepton decaying to muons or electrons using data collected with the Belle II […]
Kavli Affiliate: Roger W. Romani | First 5 Authors: Andrew G. Sullivan, Roger W. Romani, , , | Summary: PSR J2215+5135 (J2215) is a `redback’ spider pulsar, where the intrabinary shock (IBS) wraps around the pulsar rather than the stellar-mass companion. Spider orbital light curves are modulated, dominated by their binary companion thermal emission in […]
Kavli Affiliate: Roger W. Romani | First 5 Authors: Andrew G. Sullivan, Roger W. Romani, , , | Summary: PSR J2215+5135 (J2215) is a `redback’ spider pulsar, where the intrabinary shock (IBS) wraps around the pulsar rather than the stellar-mass companion. Spider orbital light curves are modulated, dominated by their binary companion thermal emission in […]
Kavli Affiliate: Richard Mittleman | First 5 Authors: Jiri Smetana, Amit Singh Ubhi, Emilia Chick, Leonid Prokhorov, John Bryant | Summary: We present a pair of seismometers capable of measurement in all six axes of rigid motion. The vacuum-compatible devices implement compact interferometric displacement sensors to surpass the sensitivity of typical electrical readout schemes. Together […]
Kavli Affiliate: Toshiya Namikawa | First 5 Authors: Emilie Hertig, Kevin Wolz, Toshiya Namikawa, Antón Baleato Lizancos, Susanna Azzoni | Summary: The Simons Observatory (SO), a next-generation ground-based CMB experiment in its final stages of construction, will target primordial $B$-modes with unprecedented sensitivity to set tight bounds on the amplitude of inflationary gravitational waves. Aiming […]
Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Shishir Dholakia, Larissa Palethorpe, Alexander Venner, Annelies Mortier, Thomas G. Wilson | Summary: We report on the discovery of Gliese 12 b, the nearest transiting temperate, Earth-sized planet found to date. Gliese 12 is a bright ($V=12.6$ mag, $K=7.8$ mag) metal-poor M4V star only $12.162pm0.005$ pc away […]
Kavli Affiliate: Sara Seager | First 5 Authors: Shishir Dholakia, Larissa Palethorpe, Alexander Venner, Annelies Mortier, Thomas G. Wilson | Summary: We report on the discovery of Gliese 12 b, the nearest transiting temperate, Earth-sized planet found to date. Gliese 12 is a bright ($V=12.6$ mag, $K=7.8$ mag) metal-poor M4V star only $12.162pm0.005$ pc away […]