X-ray and Radio campaign of the Z-source GX 340+0: discovery of X-ray polarization and its implications

Kavli Affiliate: Deepto Chakrabarty | First 5 Authors: Yash Bhargava, Mason Ng, Liang Zhang, Arvind Balasubramanian, Thomas D. Russell | Summary: We present the discovery of X-ray polarization from the neutron star low-mass X-ray binary and Z-source, GX~340$+$0, using an Imaging X-ray Polarimetry Explorer (IXPE) observation in March 2024. Along with the IXPE observation, we […]


Continue.. X-ray and Radio campaign of the Z-source GX 340+0: discovery of X-ray polarization and its implications

Probing ultrafast magnetization dynamics via synthetic axion fields

Kavli Affiliate: Frank Wilczek | First 5 Authors: Leon Shaposhnikov, Eduardo Barredo-Alamilla, Frank Wilczek, Maxim A. Gorlach, | Summary: Spatial structuring of materials at subwavelength scales underlies the concept of metamaterials possessing exotic properties beyond those of the constituent media. Temporal modulation of material parameters enables further functionalities. Here, we show that high-frequency oscillations of […]


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Survival of the Fittest Representation: A Case Study with Modular Addition

Kavli Affiliate: Max Tegmark | First 5 Authors: Xiaoman Delores Ding, Zifan Carl Guo, Eric J. Michaud, Ziming Liu, Max Tegmark | Summary: When a neural network can learn multiple distinct algorithms to solve a task, how does it "choose" between them during training? To approach this question, we take inspiration from ecology: when multiple […]


Continue.. Survival of the Fittest Representation: A Case Study with Modular Addition

Transmission grating arrays for the X-ray spectrometer on Arcus Probe

Kavli Affiliate: Ralf K. Heilmann | First 5 Authors: Ralf K. Heilmann, Alexander R. Bruccoleri, James A. Gregory, Eric M. Gullikson, Hans Moritz Günther | Summary: The Arcus Probe mission concept has been submitted as an Astrophysics Probe Explorer candidate. It features two co-aligned high-resolution grating spectrometers: one for the soft x-ray band and one […]


Continue.. Transmission grating arrays for the X-ray spectrometer on Arcus Probe

Transmission grating arrays for the X-ray spectrometer on Arcus Probe

Kavli Affiliate: Ralf K. Heilmann | First 5 Authors: Ralf K. Heilmann, Alexander R. Bruccoleri, James A. Gregory, Eric M. Gullikson, Hans Moritz Günther | Summary: The Arcus Probe mission concept has been submitted as an Astrophysics Probe Explorer candidate. It features two co-aligned high-resolution grating spectrometers: one for the soft x-ray band and one […]


Continue.. Transmission grating arrays for the X-ray spectrometer on Arcus Probe

Transmission grating arrays for the X-ray spectrometer on Arcus Probe

Kavli Affiliate: Ralf K. Heilmann | First 5 Authors: Ralf K. Heilmann, Alexander R. Bruccoleri, James A. Gregory, Eric M. Gullikson, Hans Moritz Günther | Summary: The Arcus Probe mission concept has been submitted as an Astrophysics Probe Explorer candidate. It features two co-aligned high-resolution grating spectrometers: one for the soft x-ray band and one […]


Continue.. Transmission grating arrays for the X-ray spectrometer on Arcus Probe

Faraday tomography with CHIME: the `tadpole’ feature G137+7

Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: Nasser Mohammed, Anna Ordog, Rebecca A. Booth, Andrea Bracco, Jo-Anne C. Brown | Summary: A direct consequence of Faraday rotation is that the polarized radio sky does not resemble the total intensity sky at long wavelengths. We analyze G137+7, which is undetectable in total intensity but […]


Continue.. Faraday tomography with CHIME: the `tadpole’ feature G137+7

Faraday tomography with CHIME: the `tadpole’ feature G137+7

Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: Nasser Mohammed, Anna Ordog, Rebecca A. Booth, Andrea Bracco, Jo-Anne C. Brown | Summary: A direct consequence of Faraday rotation is that the polarized radio sky does not resemble the total intensity sky at long wavelengths. We analyze G137+7, which is undetectable in total intensity but […]


Continue.. Faraday tomography with CHIME: the `tadpole’ feature G137+7

The Supersonic Project: Early Star Formation with the Streaming Velocity

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: William Lake, Claire E. Williams, Smadar Naoz, Federico Marinacci, Blakesley Burkhart | Summary: At high redshifts ($zgtrsim12$), the relative velocity between baryons and dark matter (the so-called streaming velocity) significantly affects star formation in low-mass objects. Streaming substantially reduces the abundance of low-mass gas objects while simultaneously […]


Continue.. The Supersonic Project: Early Star Formation with the Streaming Velocity

The Supersonic Project: Early Star Formation with the Streaming Velocity

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: William Lake, Claire E. Williams, Smadar Naoz, Federico Marinacci, Blakesley Burkhart | Summary: At high redshifts ($zgtrsim12$), the relative velocity between baryons and dark matter (the so-called streaming velocity) significantly affects star formation in low-mass objects. Streaming substantially reduces the abundance of low-mass gas objects while simultaneously […]


Continue.. The Supersonic Project: Early Star Formation with the Streaming Velocity