The Cosmic Ultraviolet Baryon Survey (CUBS) — III. Physical properties and elemental abundances of Lyman limit systems at $z<1$

Posted by klaurent MIT

Kavli Affiliate: Robert A. Simcoe | First 5 Authors: Fakhri S. Zahedy, Hsiao-Wen Chen, Thomas M. Cooper, Erin T. Boettcher, Sean D. Johnson | Summary: (Abridged) We present a systematic investigation of physical conditions and elemental abundances in four optically thick Lyman-limit systems (LLSs) at $z=0.36-0.6$ discovered within the Cosmic Ultraviolet Baryon Survey (CUBS). CUBS […]


Continue.. The Cosmic Ultraviolet Baryon Survey (CUBS) — III. Physical properties and elemental abundances of Lyman limit systems at $z<1$

Still Brighter than Pre-Explosion, SN 2012Z Did Not Disappear: Comparing Hubble Space Telescope Observations a Decade Apart

Posted by klaurent UCSB

Kavli Affiliate: Lars Bildsten | First 5 Authors: Curtis McCully, Saurabh W. Jha, Richard A. Scalzo, D. Andrew Howell, Ryan J. Foley | Summary: Type Iax supernovae represent the largest class of peculiar white-dwarf supernovae. The type Iax SN~2012Z in NGC 1309 is the only white dwarf supernova with a detected progenitor system in pre-explosion […]


Continue.. Still Brighter than Pre-Explosion, SN 2012Z Did Not Disappear: Comparing Hubble Space Telescope Observations a Decade Apart

Detecting and Characterizing Young Quasars II: Four Quasars at $zsim 6$ with Lifetimes $<10^4$ years

Posted by klaurent MIT

Kavli Affiliate: Robert A. Simcoe | First 5 Authors: Anna-Christina Eilers, Joseph F. Hennawi, Frederick B. Davies, Robert A. Simcoe, | Summary: The extents of proximity zones of high-redshift quasars enable constraints on the timescales of quasar activity, which are fundamental for understanding the growth of the supermassive black holes (SMBHs) that power the quasars’ […]


Continue.. Detecting and Characterizing Young Quasars II: Four Quasars at $zsim 6$ with Lifetimes $<10^4$ years

TOI-1278 B: SPIRou unveils a rare Brown Dwarf Companion in Close-In Orbit around an M dwarf

Posted by klaurent MIT

Kavli Affiliate: George Ricker | First 5 Authors: Étienne Artigau, Guillaume Hébrard, Charles Cadieux, Thomas Vandal, Neil J. Cook | Summary: We present the discovery of an $18.5pm0.5$M$_{rm Jup}$ brown dwarf (BD) companion to the M0V star TOI-1278. The system was first identified through a percent-deep transit in TESS photometry; further analysis showed it to […]


Continue.. TOI-1278 B: SPIRou unveils a rare Brown Dwarf Companion in Close-In Orbit around an M dwarf

Indirect dark matter searches at ultrahigh energy neutrino detectors

Posted by klaurent Chicago

Kavli Affiliate: Angela V. Olinto | First 5 Authors: Claire Guépin, Roberto Aloisio, Luis A. Anchordoqui, Austin Cummings, John F. Krizmanic | Summary: High to ultrahigh energy neutrino detectors can uniquely probe the properties of dark matter $chi$ by searching for the secondary products produced through annihilation and/or decay processes. We evaluate the sensitivities to […]


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Proof methods for robust low-rank matrix recovery

Posted by klaurent UCSB

Kavli Affiliate: David Gross | First 5 Authors: Tim Fuchs, David Gross, Peter Jung, Felix Krahmer, Richard Kueng | Summary: Low-rank matrix recovery problems arise naturally as mathematical formulations of various inverse problems, such as matrix completion, blind deconvolution, and phase retrieval. Over the last two decades, a number of works have rigorously analyzed the […]


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CHIME/FRB Catalog 1 results: statistical cross-correlations with large-scale structure

Posted by klaurent MIT

Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: Masoud Rafiei-Ravandi, Kendrick M. Smith, Dongzi Li, Kiyoshi W. Masui, Alexander Josephy | Summary: The CHIME/FRB Project has recently released its first catalog of fast radio bursts (FRBs), containing 492 unique sources. We present results from angular cross-correlations of CHIME/FRB sources with galaxy catalogs. We find […]


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A likelihood based sensitivity analysis for publication bias on summary ROC in meta-analysis of diagnostic test accuracy

Posted by klaurent UCAS

Kavli Affiliate: Yi Zhou | First 5 Authors: Yi Zhou, Ao Huang, Satoshi Hattori, , | Summary: In meta-analysis of diagnostic test accuracy, summary receiver operating characteristic (SROC) is a recommended method to summarize the discriminant capacity of a diagnostic test in the presence of study-specific cutoff values and the area under the SROC (SAUC) […]


Continue.. A likelihood based sensitivity analysis for publication bias on summary ROC in meta-analysis of diagnostic test accuracy