Continuous gravitational waves from trapped magnetar ejecta and the connection to glitches and antiglitches

Posted by dbos Peking

Kavli Affiliate: Lijing Shao | First 5 Authors: Garvin Yim, Yong Gao, Yacheng Kang, Lijing Shao, Renxin Xu | Summary: Gravitational waves from isolated sources have eluded detection so far. The upper limit of long-lasting continuous gravitational wave emission can now probe physically-motivated models with the most optimistic being strongly constrained. Naturally, one might want […]


Continue.. Continuous gravitational waves from trapped magnetar ejecta and the connection to glitches and antiglitches

IXPE and XMM-Newton observations of the Soft Gamma Repeater SGR 1806-20

Posted by klaurent MIT

Kavli Affiliate: Herman L. Marshall | First 5 Authors: Roberto Turolla, Roberto Taverna, Gian Luca Israel, Fabio Muleri, Silvia Zane | Summary: Recent observations with the Imaging X-ray Polarimetry Explorer (IXPE) of two anomalous X-ray pulsars provided evidence that X-ray emission from magnetar sources is strongly polarized. Here we report on the joint IXPE and […]


Continue.. IXPE and XMM-Newton observations of the Soft Gamma Repeater SGR 1806-20

JADES. The diverse population of infant Black Holes at 4<z<11: merging, tiny, poor, but mighty

Posted by klaurent Cambridge

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Roberto Maiolino, Jan Scholtz, Emma Curtis-Lake, Stefano Carniani, William Baker | Summary: We present 12 new AGN at 4<z<7 in the JADES survey (in addition to the previously identified AGN in GN-z11 at z=10.6) revealed through the detection of a Broad Line Region as seen in the […]


Continue.. JADES. The diverse population of infant Black Holes at 4<z<11: merging, tiny, poor, but mighty

JADES. The diverse population of infant Black Holes at 4<z<11: merging, tiny, poor, but mighty

Posted by klaurent Cambridge

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Roberto Maiolino, Jan Scholtz, Emma Curtis-Lake, Stefano Carniani, William Baker | Summary: We present 12 new AGN at 4<z<7 in the JADES survey (in addition to the previously identified AGN in GN-z11 at z=10.6) revealed through the detection of a Broad Line Region as seen in Halpha. […]


Continue.. JADES. The diverse population of infant Black Holes at 4<z<11: merging, tiny, poor, but mighty

JADES. The diverse population of infant Black Holes at 4<z<11: merging, tiny, poor, but mighty

Posted by dbos Cambridge

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Roberto Maiolino, Jan Scholtz, Emma Curtis-Lake, Stefano Carniani, William Baker | Summary: We present 12 new AGN at 4<z<7 in the JADES survey (in addition to the previously identified AGN in GN-z11 at z=10.6) revealed through the detection of a Broad Line Region as seen in Halpha. […]


Continue.. JADES. The diverse population of infant Black Holes at 4<z<11: merging, tiny, poor, but mighty

NuSTAR Observations of Abell 665 and 2146: Constraints on Non-Thermal Emission

Posted by klaurent Stanford

Kavli Affiliate: Grzegorz Madejski | First 5 Authors: Randall Rojas Bolivar, Daniel Wik, Ayşegül Tümer, Fabio Gastaldello, Julie Hlavacek-Larrondo | Summary: Observations from past missions such as RXTE and Beppo-SAX suggested the presence of inverse Compton (IC) scattering at hard X-ray energies within the intracluster medium of some massive galaxy clusters. In subsequent years, observations […]


Continue.. NuSTAR Observations of Abell 665 and 2146: Constraints on Non-Thermal Emission

Effect of Instrumental Polarization with a Half-Wave Plate on the $B$-Mode Signal: Prediction and Correction

Posted by klaurent Tokyo

Kavli Affiliate: Tomotake Matsumura | First 5 Authors: Guillaume Patanchon, Hiroaki Imada, Hirokazu Ishino, Tomotake Matsumura, | Summary: We evaluate the effect of half-wave plate (HWP) imperfections inducing intensity leakage to the measurement of Cosmic Microwave Background (CMB) $B$-mode polarization signal with future satellite missions focusing on the tensor-to-scalar ratio $r$. The HWP is modeled […]


Continue.. Effect of Instrumental Polarization with a Half-Wave Plate on the $B$-Mode Signal: Prediction and Correction

Photometry, Centroid and Point-Spread Function Measurements in the LSST Camera Focal Plane Using Artificial Stars

Posted by dbos Stanford

Kavli Affiliate: Aaron Roodman | First 5 Authors: Johnny H. Esteves, Yousuke Utsumi, Adam Snyder, Theo Schutt, Alex Broughton | Summary: The Vera C. Rubin Observatory’s LSST Camera pixel response has been characterized using laboratory measurements with a grid of artificial stars. We quantify the contributions to photometry, centroid, point-spread function size, and shape measurement […]


Continue.. Photometry, Centroid and Point-Spread Function Measurements in the LSST Camera Focal Plane Using Artificial Stars

Photometry, Centroid and Point-Spread Function Measurements in the LSST Camera Focal Plane Using Artificial Stars

Posted by dbos Stanford

Kavli Affiliate: Aaron Roodman | First 5 Authors: Johnny H. Esteves, Yousuke Utsumi, Adam Snyder, Theo Schutt, Alex Broughton | Summary: The Vera C. Rubin Observatory’s LSST Camera (LSSTCam) pixel response has been characterized using laboratory measurements with a grid of artificial stars. We quantify the contributions to photometry, centroid, point-spread function size, and shape […]


Continue.. Photometry, Centroid and Point-Spread Function Measurements in the LSST Camera Focal Plane Using Artificial Stars

Photometry, Centroid and Point-Spread Function Measurements in the LSST Camera Focal Plane Using Artificial Stars

Posted by dbos Stanford

Kavli Affiliate: Stuart Marshall | First 5 Authors: Johnny H. Esteves, Yousuke Utsumi, Adam Snyder, Theo Schutt, Alex Broughton | Summary: The Vera C. Rubin Observatory’s LSST Camera (LSSTCam) pixel response has been characterized using laboratory measurements with a grid of artificial stars. We quantify the contributions to photometry, centroid, point-spread function size, and shape […]


Continue.. Photometry, Centroid and Point-Spread Function Measurements in the LSST Camera Focal Plane Using Artificial Stars