Arcus X-ray telescope performance and alignment

Kavli Affiliate: Eric D. Miller, Ralf K. Heilmann | First 5 Authors: Hans Moritz Günther, Peter Cheimets, Eric D. Miller, Casey DeRoo, Randall K. Smith | Summary: Arcus is a concept for a probe class mission to deliver high-resolution FUV and X-ray spectroscopy. For X-rays, it combines cost-effective silicon pore optics (SPO) with high-throughput critical-angle […]


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The Polarized Cosmic Hand: IXPE Observations of PSR B1509-58/MSH 15-52

Kavli Affiliate: Herman L. Marshall | First 5 Authors: Roger W. Romani, Josephine Wong, Niccolo Di Lalla, Nicola Omodei, Fei Xie | Summary: We describe IXPE polarization observations of the Pulsar Wind Nebula (PWN) MSH15-52, the `Cosmic Hand’. We find X-ray polarization across the PWN, with B field vectors generally aligned with filamentary X-ray structures. […]


Continue.. The Polarized Cosmic Hand: IXPE Observations of PSR B1509-58/MSH 15-52

Discovery of X-ray Polarization from the Black Hole Transient Swift J1727.8-1613

Kavli Affiliate: Herman L. Marshall | First 5 Authors: Alexandra Veledina, Fabio Muleri, Michal Dovciak, Juri Poutanen, Ajay Ratheesh | Summary: We report the first detection of the X-ray polarization of the bright transient Swift J1727.8-1613 with the Imaging X-ray Polarimetry Explorer. The observation was performed at the beginning of the 2023 discovery outburst, when […]


Continue.. Discovery of X-ray Polarization from the Black Hole Transient Swift J1727.8-1613

Simulating ionization feedback from young massive stars: impact of numerical resolution

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Yunwei Deng, Hui Li, Rahul Kannan, Aaron Smith, Mark Vogelsberger | Summary: Modelling galaxy formation in hydrodynamic simulations has increasingly adopted various radiative transfer methods to account for photoionization feedback from young massive stars. However, the evolution of HII regions around stars begins in dense star-forming clouds […]


Continue.. Simulating ionization feedback from young massive stars: impact of numerical resolution

Simulating ionization feedback from young massive stars: impact of numerical resolution

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Yunwei Deng, Hui Li, Rahul Kannan, Aaron Smith, Mark Vogelsberger | Summary: Modelling galaxy formation in hydrodynamic simulations has increasingly adopted various radiative transfer methods to account for photoionization feedback from young massive stars. However, the evolution of HII regions around stars begins in dense star-forming clouds […]


Continue.. Simulating ionization feedback from young massive stars: impact of numerical resolution

Representing low mass black hole seeds in cosmological simulations: A new sub-grid stochastic seed model

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Aklant K Bhowmick, Laura Blecha, Paul Torrey, Rainer Weinberger, Luke Zoltan Kelley | Summary: The nature of the first seeds of supermassive black holes (SMBHs) is currently unknown, with postulated initial masses ranging from $sim10^5~M_{odot}$ to as low as $sim10^2~M_{odot}$. However, most existing cosmological simulations resolve BHs […]


Continue.. Representing low mass black hole seeds in cosmological simulations: A new sub-grid stochastic seed model

TOI-199 b: A well-characterized 100-day transiting warm giant planet with TTVs seen from Antarctica

Kavli Affiliate: Robert F. Goeke | First 5 Authors: Melissa J. Hobson, Trifon Trifonov, Thomas Henning, Andrés Jordán, Felipe Rojas | Summary: We present the spectroscopic confirmation and precise mass measurement of the warm giant planet TOI-199 b. This planet was first identified in TESS photometry and confirmed using ground-based photometry from ASTEP in Antarctica […]


Continue.. TOI-199 b: A well-characterized 100-day transiting warm giant planet with TTVs seen from Antarctica

TOI-199 b: A well-characterized 100-day transiting warm giant planet with TTVs seen from Antarctica

Kavli Affiliate: Robert F. Goeke | First 5 Authors: Melissa J. Hobson, Trifon Trifonov, Thomas Henning, Andrés Jordán, Felipe Rojas | Summary: We present the spectroscopic confirmation and precise mass measurement of the warm giant planet TOI-199 b. This planet was first identified in TESS photometry and confirmed using ground-based photometry from ASTEP in Antarctica […]


Continue.. TOI-199 b: A well-characterized 100-day transiting warm giant planet with TTVs seen from Antarctica

101 Eclipsing Quadruple Star Candidates Discovered in TESS Full Frame Images

Kavli Affiliate: Saul A. Rappaport | First 5 Authors: Veselin B. Kostov, Brian P. Powell, Saul A. Rappaport, Tamas Borkovits, Robert Gagliano | Summary: We present our second catalog of quadruple star candidates, containing 101 systems discovered in TESS Full-Frame Image data. The targets were initially detected as eclipsing binary stars with the help of […]


Continue.. 101 Eclipsing Quadruple Star Candidates Discovered in TESS Full Frame Images

101 Eclipsing Quadruple Star Candidates Discovered in TESS Full Frame Images

Kavli Affiliate: Saul A. Rappaport | First 5 Authors: Veselin B. Kostov, Brian P. Powell, Saul A. Rappaport, Tamas Borkovits, Robert Gagliano | Summary: We present our second catalog of quadruple star candidates, containing 101 systems discovered in TESS Full-Frame Image data. The targets were initially detected as eclipsing binary stars with the help of […]


Continue.. 101 Eclipsing Quadruple Star Candidates Discovered in TESS Full Frame Images