Chandra HETG X-ray Spectra and Variability of $π$ Aqr, a $γ$ Cas-type Be star

Kavli Affiliate: David P. Huenemoerder | First 5 Authors: David P. Huenemoerder, Pragati Pradhan, Claude R. Canizares, Sean Gunderson, Richard Ignace | Summary: High-resolution X-ray spectra of $pi,$Aqr, a $gamma,$Cas-type star, obtained with the Chandra/HETG grating spectrometer, revealed emission lines of H-like ions of Mg, Si, S, and Fe, a strong, hard continuum, and a […]


Continue.. Chandra HETG X-ray Spectra and Variability of $π$ Aqr, a $γ$ Cas-type Be star

Chandra HETG X-ray Spectra and Variability of $π$ Aqr, a $γ$ Cas-type Be star

Kavli Affiliate: Norbert S. Schulz | First 5 Authors: David P. Huenemoerder, Pragati Pradhan, Claude R. Canizares, Sean Gunderson, Richard Ignace | Summary: High-resolution X-ray spectra of $pi,$Aqr, a $gamma,$Cas-type star, obtained with the Chandra/HETG grating spectrometer, revealed emission lines of H-like ions of Mg, Si, S, and Fe, a strong, hard continuum, and a […]


Continue.. Chandra HETG X-ray Spectra and Variability of $π$ Aqr, a $γ$ Cas-type Be star

Chandra HETG X-ray Spectra and Variability of $π$ Aqr, a $γ$ Cas-type Be star

Kavli Affiliate: Norbert S. Schulz | First 5 Authors: David P. Huenemoerder, Pragati Pradhan, Claude R. Canizares, Sean Gunderson, Richard Ignace | Summary: High-resolution X-ray spectra of $pi,$Aqr, a $gamma,$Cas-type star, obtained with the Chandra/HETG grating spectrometer, revealed emission lines of H-like ions of Mg, Si, S, and Fe, a strong, hard continuum, and a […]


Continue.. Chandra HETG X-ray Spectra and Variability of $π$ Aqr, a $γ$ Cas-type Be star

Confronting the Diversity Problem: The Limits of Galaxy Rotation Curves as a tool to Understand Dark Matter Profiles

Kavli Affiliate: Lina Necib | First 5 Authors: Isabel S. Sands, Philip F. Hopkins, Xuejian Shen, Michael Boylan-Kolchin, James Bullock | Summary: While galaxy rotation curves provide one of the most powerful methods for measuring dark matter profiles in the inner regions of rotation-supported galaxies, at the dwarf scale there are factors that can complicate […]


Continue.. Confronting the Diversity Problem: The Limits of Galaxy Rotation Curves as a tool to Understand Dark Matter Profiles

Super-resolution imaging based on active optical intensity interferometry

Kavli Affiliate: Frank Wilczek | First 5 Authors: Lu-Chuan Liu, Cheng Wu, Wei Li, Yu-Ao Chen, Frank Wilczek | Summary: Long baseline diffraction-limited optical aperture synthesis technology by interferometry plays an important role in scientific study and practical application. In contrast to amplitude (phase) interferometry, intensity interferometry — which exploits the quantum nature of light […]


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LIGO operates with quantum noise below the Standard Quantum Limit

Kavli Affiliate: Richard Mittleman | First 5 Authors: Wenxuan Jia, Victoria Xu, Kevin Kuns, Masayuki Nakano, Lisa Barsotti | Summary: Precision measurements of space and time, like those made by the detectors of the Laser Interferometer Gravitational-wave Observatory (LIGO), are often confronted with fundamental limitations imposed by quantum mechanics. The Heisenberg uncertainty principle dictates that […]


Continue.. LIGO operates with quantum noise below the Standard Quantum Limit

LIGO operates with quantum noise below the Standard Quantum Limit

Kavli Affiliate: Lee McCuller | First 5 Authors: Wenxuan Jia, Victoria Xu, Kevin Kuns, Masayuki Nakano, Lisa Barsotti | Summary: Precision measurements of space and time, like those made by the detectors of the Laser Interferometer Gravitational-wave Observatory (LIGO), are often confronted with fundamental limitations imposed by quantum mechanics. The Heisenberg uncertainty principle dictates that […]


Continue.. LIGO operates with quantum noise below the Standard Quantum Limit

LIGO operates with quantum noise below the Standard Quantum Limit

Kavli Affiliate: Richard Mittleman | First 5 Authors: Wenxuan Jia, Victoria Xu, Kevin Kuns, Masayuki Nakano, Lisa Barsotti | Summary: Precision measurements of space and time, like those made by the detectors of the Laser Interferometer Gravitational-wave Observatory (LIGO), are often confronted with fundamental limitations imposed by quantum mechanics. The Heisenberg uncertainty principle dictates that […]


Continue.. LIGO operates with quantum noise below the Standard Quantum Limit

Squeezing the quantum noise of a gravitational-wavedetector below the standard quantum limit

Kavli Affiliate: Nergis Mavalvala | First 5 Authors: Wenxuan Jia, Victoria Xu, Kevin Kuns, Masayuki Nakano, Lisa Barsotti | Summary: Precision measurements of space and time, like those made by the detectors of the Laser Interferometer Gravitational-wave Observatory (LIGO), are often confronted with fundamental limitations imposed by quantum mechanics. The Heisenberg uncertainty principle dictates that […]


Continue.. Squeezing the quantum noise of a gravitational-wavedetector below the standard quantum limit

Squeezing the quantum noise of a gravitational-wave detector below the standard quantum limit

Kavli Affiliate: Nergis Mavalvala | First 5 Authors: Wenxuan Jia, Victoria Xu, Kevin Kuns, Masayuki Nakano, Lisa Barsotti | Summary: Precision measurements of space and time, like those made by the detectors of the Laser Interferometer Gravitational-wave Observatory (LIGO), are often confronted with fundamental limitations imposed by quantum mechanics. The Heisenberg uncertainty principle dictates that […]


Continue.. Squeezing the quantum noise of a gravitational-wave detector below the standard quantum limit