Gravitational-wave dark siren cosmology systematics from galaxy weighting

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 […]


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WTP19aalnxx: Discovery of a bright mid-infrared transient in the emerging class of low luminosity supernovae revealed by delayed circumstellar interaction

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 […]


Continue.. WTP19aalnxx: Discovery of a bright mid-infrared transient in the emerging class of low luminosity supernovae revealed by delayed circumstellar interaction

Test of light-lepton universality in $τ$ decays with the Belle II experiment

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 […]


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A Joint X-ray and Optical Study of the Massive Redback Pulsar J2215+5135

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 […]


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Sensitivity and control of a 6-axis fused-silica seismometer

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 […]


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The Simons Observatory: Combining delensing and foreground cleaning for improved constraints on inflation

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 […]


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Gliese 12 b, A Temperate Earth-sized Planet at 12 Parsecs Discovered with TESS and CHEOPS

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 […]


Continue.. Gliese 12 b, A Temperate Earth-sized Planet at 12 Parsecs Discovered with TESS and CHEOPS

Gliese 12 b, A Temperate Earth-sized Planet at 12 Parsecs Discovered with TESS and CHEOPS

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 […]


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Implication of Jet Physics from MeV Line Emission of GRB 221009A

Kavli Affiliate: Zhuo Li | First 5 Authors: Zhen Zhang, Haoxiang Lin, Zhuo Li, Shao-Lin Xiong, Yan-Qiu Zhang | Summary: Ultra-relativistic jets are believed to play important role in producing prompt emission and afterglow of gamma-ray burst (GRB), but the nature of the jet is poorly known owing to the lacking of decisive features observed […]


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GA-NIFS: Witnessing the complex assembly of a massive star-forming system at $z=5.7$

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Gareth C. Jones, Andrew J. Bunker, Kseniia Telikova, Santiago Arribas, Stefano Carniani | Summary: We present observations of the $zsim5.7$ Lyman-break galaxy HZ10 with the JWST/NIRSpec IFU in high and low spectral resolution (G395H, $Rsim2700$ and PRISM, $Rsim100$, respectively), as part of the GA-NIFS program. By spatially […]


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