Physical Sciences and Mathematics | Open Access Articles

Exclusion Statistics For Particles With A Discrete Spectrum, Stéphane Ouvry, Alexios P. Polychronakos

Publications and Research

We formulate and study the microscopic statistical mechanics of systems of particles with exclusion statistics in a discrete one-body spectrum. The statistical mechanics of these systems can be expressed in terms of effective single-level grand partition functions obeying a generalization of the standard thermodynamic exclusion statistics equation of state. We derive explicit expressions for the thermodynamic potential in terms of microscopic cluster coefficients and show that the mean occupation numbers of levels satisfy a nesting relation involving a number of adjacent levels determined by the exclusion parameter. We apply the formalism to the harmonic Calogero model and point out a …

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Line-Of-Sight Winds And Doppler Effect Smearing In Ace-Fts Solar Occultation Measurements, Chris D. Boone, Johnathen Steffen, Jeff Crouse, Peter F. Bernath

Chemistry & Biochemistry Faculty Publications

Line-of-sight wind profiles are derived from Doppler shifts in infrared solar occultation measurements from the Atmospheric Chemistry Experiment Fourier transform spectrometers (ACE-FTS), the primary instrument on SCISAT, a satellite-based mission for monitoring the Earth’s atmosphere. Comparisons suggest a possible eastward bias from 20 m/s to 30 m/s in ACE-FTS results above 80 km relative to some datasets but no persistent bias relative to other datasets. For instruments operating in a limb geometry, looking through a wide range of altitudes, smearing of the Doppler effect along the line of sight can impact the measured signal, particularly for saturated absorption lines. Implications …

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Environmental Noise In Advanced Ligo Detectors, P. Nguyen, R. M. S. Schofield, A. Effler, C. Austin, V. B. Adya, M. Ball, S. Banagiri, K. Banowetz, C. Billman, Karla E. Ramirez

Physics and Astronomy Faculty Publications and Presentations

The sensitivity of the advanced LIGO detectors to gravitational waves can be affected by environmental disturbances external to the detectors themselves. Since the transition from the former initial LIGO phase, many improvements have been made to the equipment and techniques used to investigate these environmental effects. These methods have aided in tracking down and mitigating noise sources throughout the first three observing runs of the advanced detector era, keeping the ambient contribution of environmental noise below the background noise levels of the detectors. In this paper we describe the methods used and how they have led to the mitigation of …

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Resurgence Of The Qcd Adler Function, Alessio Maiezza, Juan Carlos Vasquez

Physics Department Faculty Publication Series

We study the QCD Adler function in the energy region approximate to 0.7 - 2.5 GeV, in which the non-perturbative effects become dominant. Our analysis is a renormalon-based evaluation using transseries within the resurgence of the Renormalization-Group-Equation and does not require the Operator-Product-Expansion. (C) 2021 The Author(s). Published by Elsevier B.V.

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A Planetary System With Two Transiting Mini-Neptunes Near The Radius Valley Transition Around The Bright M Dwarf Toi-776, R. Luque, L. M. Serrano, K. Molaverdikhani, M. C. Nixon, J. H. Livingston, E. W. Guenther, E. Pallé, N. Madhusudhan, G. Nowak, J. Korth, W. D. Cochran, T. Hirano, P. Chaturvedi, E. Goffo, S. Albrecht, O. Barragán, C. Briceño, J. Cabrera, D. Charbonneau, R. Cloutier, K. A. Collins, K. I. Collins, K. D. Colón, J. M. Crossfield, S. Csizmadia, F. Dai, H. J. Deeg, M. Esposito, M. Fridlund, D. Gandolfi, I. Georgieva, A. Glidden, R. F. Goeke, S. Grziwa, A. P. Hatzes, C. E. Henze, S. B. Howell, J. Irwin, J. M. Jenkins, Eric L.N. Jensen, P. Kábath, R. C. Kidwell Jr., J. F. Kielkopf, E. Knudstrup, K. W. F. Lam, D. W. Latham, J. J. Lissauer, A. W. Mann, E. C. Matthews, I. Mireles, N. Narita, M. Paegert, C. M. Persson, S. Redfield, G. R. Ricker, F. Rodler, J. E. Schlieder, N. J. Scott, S. Seager, J. Šubjak, T. G. Tan, E. B. Ting, R. Vanderspek, V. Van Eylen, J. N. Winn, C. Ziegler

Physics & Astronomy Faculty Works

We report the discovery and characterization of two transiting planets around the bright M1 V star LP 961-53 (TOI-776, J = 8.5 mag, M = 0.54 ± 0.03 M ⊙) detected during Sector 10 observations of the Transiting Exoplanet Survey Satellite (TESS). Combining the TESS photometry with HARPS radial velocities, as well as ground-based follow-up transit observations from the MEarth and LCOGT telescopes, for the inner planet, TOI-776 b, we measured a period of P b = 8.25 d, a radius of R b = 1.85 ± 0.13 R ⊕, and a mass of M b = 4.0 ± 0.9 …

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Toi-519 B: A Short-Period Substellar Object Around An M Dwarf Validated Using Multicolour Photometry And Phase Curve Analysis, H. Parviainen, E. Palle, M. R. Zapatero-Osorio, G. Nowak, A. Fukui, F. Murgas, N. Narita, K. G. Stassun, J. H. Livingston, K. A. Collins, D. Hidalgo Soto, V. J. S. Béjar, J. Korth, M. Monelli, P. Montanes Rodriguez, N. Casasayas-Barris, G. Chen, N. Crouzet, J. P. De Leon, A. Hernandez, K. Kawauchi, P. Klagyivik, N. Kusakabe, R. Luque, M. Mori, T. Nishiumi, J. Prieto-Arranz, M. Tamura, N. Watanabe, T. Gan, K. I. Collins, Eric L.N. Jensen, T. Barclay, J. P. Doty, J. M. Jenkins, D. W. Latham, M. Paegert, G. Ricker, D. R. Rodriguez, S. Seager, A. Shporer, R. Vanderspek, J. Villaseñor, J. N. Winn, B. Wohler, I. Wong

Physics & Astronomy Faculty Works

Context. We report the discovery of TOI-519 b (TIC 218795833), a transiting substellar object (R = 1.07 RJup) orbiting a faint M dwarf (V = 17.35) on a 1.26 d orbit. Brown dwarfs and massive planets orbiting M dwarfs on short-period orbits are rare, but more have already been discovered than expected from planet formation models. TOI-519 is a valuable addition to this group of unlikely systems, and it adds towards our understanding of the boundaries of planet formation. Aims. We set out to determine the nature of the Transiting Exoplanet Survey Satellite (TESS) object of interest TOI-519 b. Methods. …

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Toi 122b And Toi 237b: Two Small Warm Planets Orbiting Inactive M Dwarfs Found By Tess, W. C. Waalkes, Z. K. Berta-Thompson, K. A. Collins, A. D. Feinstein, B. M. Tofflemire, B. Rojas-Ayala, M. L. Silverstein, E. Newton, G. R. Ricker, R. Vanderspek, D. W. Latham, S. Seager, J. N. Winn, J. M. Jenkins, J. Christiansen, R. F. Goeke, A. M. Levine, H. P. Osborn, S. A. Rinehart, M. E. Rose, E. B. Ting, J. D. Twicken, K. Barkaoui, J. L. Bean, C. Briceño, D. R. Ciardi, K. I. Collins, D. Conti, T. Gan, M. Gillon, G. Isopi, E. Jehin, Eric L.N. Jensen, J. F. Kielkopf, N. Law, F. Mallia, A. W. Mann, B. T. Montet, F. J. Pozuelos, H. Relles, J. E. Libby-Roberts, C. Ziegler

Physics & Astronomy Faculty Works

We report the discovery and validation of TOI 122b and TOI 237b, two warm planets transiting inactive M dwarfs observed by the Transiting Exoplanet Survey Satellite (TESS). Our analysis shows that TOI 122b has a radius of 2.72 ± 0.18 R⊕ and receives 8.8 ± 1.0 times Earth's bolometric insolation, and TOI 237b has a radius of 1.44±0.12 R⊕ and receives 3.7 ± 0.5 times Earth's insolation, straddling the 6.7 × Earth insolation that Mercury receives from the Sun. This makes these two of the cooler planets yet discovered by TESS, even on their 5.08 and 5.43 day orbits. Together, …

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Vetting Of 384 Tess Objects Of Interest With Triceratops And Statistical Validation Of 12 Planet Candidates, S. Giacalone, C. D. Dressing, Eric L.N. Jensen, K. A. Collins, G. R. Ricker, R. Vanderspek, S. Seager, J. N. Winn, J. M. Jenkins, T. Barclay, K. Barkaoui, C. Cadieux, D. Charbonneau, K. I. Collins, D. M. Conti, R. Doyon, P. Evans, M. Ghachoui, M. Gillon, N. M. Guerrero, R. Hart, E. Jehin, J. F. Kielkopf, B. Mclean, F. Murgas, E. Palle, H. Parviainen, F. J. Pozuelos, H. M. Relles, A. Shporer, Q. Socia, C. Stockdale, T.-G. Tan, G. Torres, J. D. Twicken, W. C. Waalkes, I. A. Waite

Physics & Astronomy Faculty Works

We present TRICERATOPS, a new Bayesian tool that can be used to vet and validate TESS Objects of Interest (TOIs). We test the tool on 68 TOIs that have been previously confirmed as planets or rejected as astrophysical false positives. By looking in the false-positive probability (FPP)−nearby false-positive probability (NFPP) plane, we define criteria that TOIs must meet to be classified as validated planets (FPP < 0.015 and NFPP < 10−3), likely planets (FPP < 0.5 and NFPP < 10−3), and likely nearby false positives (NFPP > 10−1). We apply this procedure on 384 unclassified TOIs and statistically validate 12, classify 125 as likely planets, and classify 52 as likely nearby false positives. Of the 12 statistically validated planets, 9 are newly …

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The Causal Topology Of Neutral 4-Manifolds With Null Boundary, Nikos Georgiou, Brendan Guilfoyle

Publications

This paper considers aspects of 4-manifold topology from the point of view of the null cone of a neutral metric, a point of view we call neutral causal topology. In particular, we construct and investigate neutral 4-manifolds with null boundaries that arise from canonical 3- and 4-dimensional settings. A null hypersurface is foliated by its normal and, in the neutral case, inherits a pair of totally null planes at each point. This paper focuses on these plane bundles in a number of classical settings The first construction is the conformal compactification of flat neutral 4- space into the 4-ball. The …

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Galaxy And Mass Assembly (Gama): The Interplay Between Galaxy Mass, Sfr, And Heavy Element Abundance In Paired Galaxy Sets, L. E. Garduno, M. A. Lara-Lopez, O. Lopez-Cruz, A. M. Hopkins, M. S. Owers, K. A. Pimbblet, Benne Holwerda

Faculty Scholarship

We study the star formation rate (SFR), stellar mass (M), and the gas metallicity (Z) for 4636 galaxy pairs using the Galaxy And Mass Assembly (GAMA) survey. Our galaxy pairs lie in a redshift range of 0

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Open Data From The First And Second Observing Runs Of Advanced Ligo And Advanced Virgo, Ligo Scientific Collaboration, Virgo Collaboration, Tiffany Z. Summerscales

Faculty Publications

Advanced LIGO and Advanced Virgo are monitoring the sky and collecting gravitational-wave strain data with sufficient sensitivity to detect signals routinely. In this paper we describe the data recorded by these instruments during their first and second observing runs. The main data products are gravitational-wave strain time series sampled at 16384 Hz. The datasets that include this strain measurement can be freely accessed through the Gravitational Wave Open Science Center at http://gw-openscience.org, together with data-quality information essential for the analysis of LIGO and Virgo data, documentation, tutorials, and supporting software.

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Physical Sciences and Mathematics Commons^™

Full-Text Articles in Physical Sciences and Mathematics

Exclusion Statistics For Particles With A Discrete Spectrum, Stéphane Ouvry, Alexios P. Polychronakos

Publications and Research

Line-Of-Sight Winds And Doppler Effect Smearing In Ace-Fts Solar Occultation Measurements, Chris D. Boone, Johnathen Steffen, Jeff Crouse, Peter F. Bernath

Chemistry & Biochemistry Faculty Publications

Environmental Noise In Advanced Ligo Detectors, P. Nguyen, R. M. S. Schofield, A. Effler, C. Austin, V. B. Adya, M. Ball, S. Banagiri, K. Banowetz, C. Billman, Karla E. Ramirez

Physics and Astronomy Faculty Publications and Presentations

Resurgence Of The Qcd Adler Function, Alessio Maiezza, Juan Carlos Vasquez

Physics Department Faculty Publication Series

Physics & Astronomy Faculty Works

Physics & Astronomy Faculty Works

Physics & Astronomy Faculty Works

Physics & Astronomy Faculty Works

The Causal Topology Of Neutral 4-Manifolds With Null Boundary, Nikos Georgiou, Brendan Guilfoyle

Publications

Galaxy And Mass Assembly (Gama): The Interplay Between Galaxy Mass, Sfr, And Heavy Element Abundance In Paired Galaxy Sets, L. E. Garduno, M. A. Lara-Lopez, O. Lopez-Cruz, A. M. Hopkins, M. S. Owers, K. A. Pimbblet, Benne Holwerda

Faculty Scholarship

Open Data From The First And Second Observing Runs Of Advanced Ligo And Advanced Virgo, Ligo Scientific Collaboration, Virgo Collaboration, Tiffany Z. Summerscales

Faculty Publications