XRISM forecast for the Coma cluster: stormy, with a steep power spectrum

Kavli Affiliate: Erin Kara | First 5 Authors: XRISM Collaboration, Marc Audard, Hisamitsu Awaki, Ralf Ballhausen, Aya Bamba | Summary: The XRISM Resolve microcalorimeter array measured the velocities of hot intracluster gas at two positions in the Coma galaxy cluster: 3’x3′ squares at the center and at 6′ (170 kpc) to the south. We find […]


Continue.. XRISM forecast for the Coma cluster: stormy, with a steep power spectrum

Constraining Population III stellar demographics with next-generation gravitational-wave observatories

Kavli Affiliate: Salvatore Vitale | First 5 Authors: Cailin Plunkett, Matthew Mould, Salvatore Vitale, , | Summary: Next-generation gravitational-wave observatories will reach farther into the universe than currently possible, revealing black-hole mergers from early stellar binary systems such as Population III stars, whose properties are currently poorly constrained. We develop a method to infer the […]


Continue.. Constraining Population III stellar demographics with next-generation gravitational-wave observatories

Constraining Population III stellar demographics with next-generation gravitational-wave observatories

Kavli Affiliate: Salvatore Vitale | First 5 Authors: Cailin Plunkett, Matthew Mould, Salvatore Vitale, , | Summary: Next-generation gravitational-wave observatories will reach farther into the universe than currently possible, revealing black-hole mergers from early stellar binary systems such as Population III stars, whose properties are currently poorly constrained. We develop a method to infer the […]


Continue.. Constraining Population III stellar demographics with next-generation gravitational-wave observatories

Thermal Emission and Confirmation of the Frigid White Dwarf Exoplanet WD 1856+534b

Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Mary Anne Limbach, Andrew Vanderburg, Ryan J. MacDonald, Kevin B. Stevenson, Sydney Jenkins | Summary: We report the detection of thermal emission from and confirm the planetary nature of WD 1856+534b, the first transiting planet known to orbit a white dwarf star. Observations with JWST’s Mid-Infrared Instrument […]


Continue.. Thermal Emission and Confirmation of the Frigid White Dwarf Exoplanet WD 1856+534b

X-ray and radio polarimetry of the neutron star low-mass X-ray binary 4U 1728-34

Kavli Affiliate: Herman L. Marshall | First 5 Authors: Unnati Kashyap, Thomas J. Maccarone, Thomas D. Russell, Mason Ng, Swati Ravi | Summary: We report the first X-ray and radio polarimetric results of the neutron star (NS) low-mass X-ray binary (LMXB) atoll-source 4U 1728-34 using the Imaging X-ray Polarimetry Explorer (IXPE) and Australia Telescope Compact […]


Continue.. X-ray and radio polarimetry of the neutron star low-mass X-ray binary 4U 1728-34

X-ray and radio polarimetry of the neutron star low-mass X-ray binary 4U 1728-34

Kavli Affiliate: Herman L. Marshall | First 5 Authors: Unnati Kashyap, Unnati Kashyap, , , | Summary: We report the first X-ray and radio polarimetric results of the neutron star (NS) low-mass X-ray binary (LMXB) atoll-source 4U 1728-34 using the Imaging X-ray Polarimetry Explorer (IXPE) and Australia Telescope Compact Array (ATCA). We discovered that the […]


Continue.. X-ray and radio polarimetry of the neutron star low-mass X-ray binary 4U 1728-34