Astrophysics – Page 150 – Kavli Institute Pre-Print Publications

Tracing the rise of supermassive black holes: A panchromatic search for faint, unobscured quasars at z > 6 with COSMOS-Web and other surveys

Posted by dbos January 22, 2024February 5, 2024Tokyo

Kavli Affiliate: John D. Silverman | First 5 Authors: Irham T. Andika, Knud Jahnke, Masafusa Onoue, John D. Silverman, Itsna K. Fitriana | Summary: We report the identification of 64 new candidates of compact galaxies, potentially hosting faint quasars with bolometric luminosities of $L_mathrm{bol} = 10^{43}$–10$^{46}$ erg s$^{-1}$, residing in the reionization epoch within the […]

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Tracing the rise of supermassive black holes: A panchromatic search for faint, unobscured quasars at z > 6 with COSMOS-Web and other surveys

Posted by dbos January 22, 2024Tokyo

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Tracing the rise of supermassive black holes: A panchromatic search for faint, unobscured quasars at z > 6 with COSMOS-Web and other surveys

Posted by klaurent January 22, 2024Tokyo

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Hot Jupiter Formation in Dense Star Clusters

Posted by dbos January 21, 2024February 5, 2024Peking

Kavli Affiliate: Rainer Spurzem | First 5 Authors: Leonard Benkendorff, Francesco Flammini Dotti, Katja Stock, Maxwell Xu Cai, Rainer Spurzem | Summary: Hot Jupiters (HJ) are defined as Jupiter-mass exoplanets orbiting around their host star with an orbital period < 10 days. It is assumed that HJ do not form in-situ but ex-situ. Recent discoveries […]

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Enrichment by Extragalactic First Stars in the Large Magellanic Cloud

Posted by dbos January 20, 2024MIT

Kavli Affiliate: Anna Frebel | First 5 Authors: Anirudh Chiti, Mohammad Mardini, Guilherme Limberg, Anna Frebel, Alexander P. Ji | Summary: The Large Magellanic Cloud (LMC) is the Milky Way’s most massive satellite galaxy, which only recently (~2 billion years ago) fell into our Galaxy. Since stellar atmospheres preserve their natal cloud’s composition, the LMC’s […]

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Enrichment by Extragalactic First Stars in the Large Magellanic Cloud

Posted by dbos January 20, 2024MIT

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Enrichment by Extragalactic First Stars in the Large Magellanic Cloud

Posted by dbos January 20, 2024MIT

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How well does surface magnetism represent deep Sun-like star dynamo action?

Posted by dbos January 19, 2024February 5, 2024Stanford

Kavli Affiliate: Robert Cameron | First 5 Authors: Adam J. Finley, Sacha A. Brun, Antoine Strugarek, Robert Cameron, | Summary: For Sun-like stars, the generation of toroidal magnetic field from poloidal magnetic field is an essential piece of the dynamo mechanism powering their magnetism. Previous authors have estimated the net toroidal flux generated in each […]

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Chronicling the reionization history at $6lesssim z lesssim 7$ with emergent quasar damping wings

Posted by dbos January 18, 2024February 5, 2024MIT

Kavli Affiliate: Robert A. Simcoe | First 5 Authors: Dominika Ďurovčíková, Anna-Christina Eilers, Huanqing Chen, Sindhu Satyavolu, Girish Kulkarni | Summary: The spectra of high-redshift ($zgtrsim 6$) quasars contain valuable information on the progression of the Epoch of Reionization (EoR). At redshifts $z<6$, the observed Lyman-series forest shows that the intergalactic medium (IGM) is nearly […]

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Forecasts for Galaxy Formation and Dark Matter Constraints from Dwarf Galaxy Surveys

Posted by dbos January 18, 2024February 5, 2024Stanford

Kavli Affiliate: Risa H. Wechsler | First 5 Authors: Ethan O. Nadler, Vera Gluscevic, Trey Driskell, Risa H. Wechsler, Leonidas A. Moustakas | Summary: The abundance of faint dwarf galaxies is determined by the underlying population of low-mass dark matter (DM) halos and the efficiency of galaxy formation in these systems. Here, we quantify potential […]

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