The X-ray polarimetry view of the accreting pulsar Cen X-3

Kavli Affiliate: Herman L. Marshall | First 5 Authors: Sergey S. Tsygankov, Victor Doroshenko, Juri Poutanen, Jeremy Heyl, Alexander A. Mushtukov | Summary: Cen X-3 is the first X-ray pulsar discovered 50 years ago. Radiation from such objects is expected to be highly polarized due to birefringence of plasma and vacuum associated with propagation of […]


Continue.. The X-ray polarimetry view of the accreting pulsar Cen X-3

Discovery of an Ultra Lithium-rich Metal-Poor Red Giant star

Kavli Affiliate: Anna Frebel | First 5 Authors: Jeremy Kowkabany, Rana Ezzeddine, Corinne Charbonnel, Ian U. Roederer, Yangyang Li | Summary: We present the discovery of 2MASS J05241392-0336543 (hereafter J0524-0336), a very metal-poor ([Fe/H]=-2.43 pm 0.16), highly r-process-enhanced ([Eu/Fe]=+1.34 pm 0.10) Milky Way halo field red giant star, with an ultra high Li abundance of […]


Continue.. Discovery of an Ultra Lithium-rich Metal-Poor Red Giant star

Discovery of a Metal-Poor Red Giant Star with the Highest Ultra-Lithium Enhancement

Kavli Affiliate: Anna Frebel | First 5 Authors: Jeremy Kowkabany, Rana Ezzeddine, Corinne Charbonnel, Ian U. Roederer, Ella Xi Wang | Summary: We present the discovery of 2MASS J05241392-0336543 (hereafter J0524-0336), a very metal-poor ([Fe/H]=-2.43 +- 0.16), highly r-process-enhanced ([Eu/Fe]= +1.34 +- 0.10) Milky Way halo field red giant star, with an ultra high Li […]


Continue.. Discovery of a Metal-Poor Red Giant Star with the Highest Ultra-Lithium Enhancement

The Cosmic Ultraviolet Baryon Survey (CUBS) V: On the Thermodynamic Properties of the Cool Circumgalactic Medium at $z < 1$

Kavli Affiliate: Robert A. Simcoe | First 5 Authors: Zhijie Qu, Hsiao-Wen Chen, Gwen C. Rudie, Fakhri S. Zahedy, Sean D. Johnson | Summary: This paper presents a systematic study of the photoionization and thermodynamic properties of the cool circumgalactic medium (CGM) as traced by rest-frame ultraviolet absorption lines around 26 galaxies at redshift $zlesssim1$. […]


Continue.. The Cosmic Ultraviolet Baryon Survey (CUBS) V: On the Thermodynamic Properties of the Cool Circumgalactic Medium at $z < 1$

Anisotropic satellite accretion onto the Local Group with HESTIA

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Alexandra Dupuy, Noam I. Libeskind, Yehuda Hoffman, Hélène M. Courtois, Stefan Gottlöber | Summary: How the cosmic web feeds halos, and fuels galaxy formation is an open question with wide implications. This study explores the mass assembly in the Local Group within the context of the local […]


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Uncovering dark matter density profiles in dwarf galaxies with graph neural networks

Kavli Affiliate: Lina Necib | First 5 Authors: Tri Nguyen, Siddharth Mishra-Sharma, Reuel Williams, Lina Necib, | Summary: Dwarf galaxies are small, dark matter-dominated galaxies, some of which are embedded within the Milky Way. Their lack of baryonic matter (e.g., stars and gas) makes them perfect test beds for probing the properties of dark matter […]


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Variability Catalog of Stars Observed During the TESS Prime Mission

Kavli Affiliate: Roland Vanderspek | First 5 Authors: Tara Fetherolf, Joshua Pepper, Emilie Simpson, Stephen R. Kane, Teo Mocnik | Summary: During its 2-year Prime Mission, TESS observed over 232,000 stars at a 2-min cadence across ~70% of the sky. These data provide a record of photometric variability across a range of astrophysically interesting time […]


Continue.. Variability Catalog of Stars Observed During the TESS Prime Mission

Variability Catalog of Stars Observed During the TESS Prime Mission

Kavli Affiliate: Roland Vanderspek | First 5 Authors: Tara Fetherolf, Joshua Pepper, Emilie Simpson, Stephen R. Kane, Teo Mocnik | Summary: During its 2-year Prime Mission, TESS observed over 232,000 stars at a 2-min cadence across ~70% of the sky. These data provide a record of photometric variability across a range of astrophysically interesting time […]


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TOI-4562 b: A highly eccentric temperate Jupiter analog orbiting a young field star

Kavli Affiliate: Sara Seager | First 5 Authors: Alexis Heitzmann, George Zhou, Samuel N. Quinn, Chelsea X. Huang, Jiayin Dong | Summary: We report the discovery of TOI-4562 b (TIC-349576261), a Jovian planet orbiting a young F7V-type star, younger than the Praesepe/Hyades clusters ($sim$ 300-400 Myr). This planet stands out because of its unusually long […]


Continue.. TOI-4562 b: A highly eccentric temperate Jupiter analog orbiting a young field star

TOI-4562 b: A highly eccentric temperate Jupiter analog orbiting a young field star

Kavli Affiliate: Andrew M. Vanderburg | First 5 Authors: Alexis Heitzmann, George Zhou, Samuel N. Quinn, Chelsea X. Huang, Jiayin Dong | Summary: We report the discovery of TOI-4562 b (TIC-349576261), a Jovian planet orbiting a young F7V-type star, younger than the Praesepe/Hyades clusters (< $700$ Myr). This planet stands out because of its unusually […]


Continue.. TOI-4562 b: A highly eccentric temperate Jupiter analog orbiting a young field star