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19912026
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717 papers · 1 filter

astro-ph.GA2021★ 1 cited

ArH+ and H2O+ absorption towards luminous galaxies

Arshia M. Jacob, Karl M. Menten, Friedrich Wyrowski +3

Along several sight lines within the Milky Way ArH+ has been ubiquitously detected with only one detection in extragalactic environments, namely along two sight lines in the red sh…

math.NA2021★ 6 cited

Shock trace prediction by reduced models for a viscous stochastic Burgers equation

Nan Chen, Honghu Liu, Fei Lu

Viscous shocks are a particular type of extreme events in nonlinear multiscale systems, and their representation requires small scales. Model reduction can thus play an important r…

q-bio.OT2021★ 4 cited

Beyond Low Earth Orbit: Biological Research, Artificial Intelligence, and Self-Driving Labs

Lauren M. Sanders, Jason H. Yang, Ryan T. Scott +53

Space biology research aims to understand fundamental effects of spaceflight on organisms, develop foundational knowledge to support deep space exploration, and ultimately bioengin…

q-bio.OT2021★ 8 cited

Beyond Low Earth Orbit: Biomonitoring, Artificial Intelligence, and Precision Space Health

Ryan T. Scott, Erik L. Antonsen, Lauren M. Sanders +53

Human space exploration beyond low Earth orbit will involve missions of significant distance and duration. To effectively mitigate myriad space health hazards, paradigm shifts in d…

astro-ph.SR2021★ 19 cited

An absolute calibration of the near-infrared Period-Luminosity Relations of Type II Cepheids in the Milky Way and in the Large Magellanic Cloud

Piotr Wielgórski, Grzegorz Pietrzyński, Bogumił Pilecki +29

We present time-series photometry of 21 nearby Type II Cepheids in the near-infrared J, H and Ks passbands. We use this photometry, together with the Third Gaia Early Data Release…

astro-ph.EP2021★ 17 cited

Triton Haze Analogues: the Role of Carbon Monoxide in Haze Formation

Sarah E. Moran, Sarah M. Hörst, Chao He +7

Triton is the largest moon of the Neptune system and possesses a thin nitrogen atmosphere with trace amounts of carbon monoxide and methane, making it of similar composition to tha…

cs.CL2021★ 106 cited

Between words and characters: A Brief History of Open-Vocabulary Modeling and Tokenization in NLP

Sabrina J. Mielke, Zaid Alyafeai, Elizabeth Salesky +8

What are the units of text that we want to model? From bytes to multi-word expressions, text can be analyzed and generated at many granularities. Until recently, most natural langu…

astro-ph.HE2021★ 31 cited

A Carbon/Oxygen-dominated Atmosphere Days After Explosion for the "Super-Chandrasekhar" Type Ia SN 2020esm

Georgios Dimitriadis, Ryan J. Foley, Nikki Arendse +18

Seeing pristine material from the donor star in a Type Ia supernova (SN Ia) explosion can reveal the nature of the binary system. In this paper, we present photometric and spectros…

astro-ph.GA2021

Burton's Curse: The Impact of Bulk Flows on the Galactic Longitude-Velocity Diagram and the Illusion of a Continuous Perseus Arm

J. E. G. Peek, Kirill Tchernyshyov, Marc-Antoine Miville-Deschenes

In this work we demonstrate that the Perseus Arm is not a continuous structure of molecular gas in the second quadrant. We first show that the observed, distanced-resolved velocity…

cs.DB2021★ 94 cited

A Simple Standard for Sharing Ontological Mappings (SSSOM)

Nicolas Matentzoglu, James P. Balhoff, Susan M. Bello +41

Despite progress in the development of standards for describing and exchanging scientific information, the lack of easy-to-use standards for mapping between different representatio…

cs.RO2021★ 31 cited

RSV: Robotic Sonography for Thyroid Volumetry

John Zielke, Christine Eilers, Benjamin Busam +3

In nuclear medicine, radioiodine therapy is prescribed to treat diseases like hyperthyroidism. The calculation of the prescribed dose depends, amongst other factors, on the thyroid…

cs.CV2021★ 11 cited

Interpolated Joint Space Adversarial Training for Robust and Generalizable Defenses

Chun Pong Lau, Jiang Liu, Hossein Souri +3

Adversarial training (AT) is considered to be one of the most reliable defenses against adversarial attacks. However, models trained with AT sacrifice standard accuracy and do not…

astro-ph.GA2021★ 42 cited

GASKAP-HI Pilot Survey Science I: ASKAP Zoom Observations of HI Emission in the Small Magellanic Cloud

N. M. Pingel, J. Dempsey, N. M. McClure-Griffiths +53

We present the most sensitive and detailed view of the neutral hydrogen (HI) emission associated with the Small Magellanic Cloud (SMC), through the combination of data from the Aus…

astro-ph.IM2021★ 11 cited

The Importance of Being Interpretable: Toward An Understandable Machine Learning Encoder for Galaxy Cluster Cosmology

Michelle Ntampaka, Alexey Vikhlinin

We present a deep machine learning (ML) approach to constraining cosmological parameters with multi-wavelength observations of galaxy clusters. The ML approach has two components:…

astro-ph.GA2021

The role of neutral hydrogen in setting the abundances of molecular species in the Milky Way's diffuse interstellar medium. II. Comparison between observations and theoretical models

Daniel R. Rybarczyk, Munan Gong, Snezana Stanimirovic +6

We compare observations of HI from the Very Large Array (VLA) and the Arecibo Observatory and observations of HCO from the Atacama Large Millimeter/submillimeter Array (ALMA) a…

astro-ph.SR2021★ 6 cited

H-band light curves of Milky Way Cepheids via Difference Imaging

Tarini Konchady, Ryan J. Oelkers, David O. Jones +4

We present H-band light curves of Milky Way Classical Cepheids observed as part of the DEHVILS survey with the Wide-Field Infrared Camera on the United Kingdom InfraRed Telescope.…

cs.LG2021★ 24 cited

Mutual Adversarial Training: Learning together is better than going alone

Jiang Liu, Chun Pong Lau, Hossein Souri +2

Recent studies have shown that robustness to adversarial attacks can be transferred across networks. In other words, we can make a weak model more robust with the help of a strong…

astro-ph.EP2021★ 11 cited

A hot Mars-sized exoplanet transiting an M dwarf

Caleb I. Cañas, Suvrath Mahadevan, William D. Cochran +21

We validate the planetary nature of an ultra-short period planet orbiting the M dwarf KOI-4777. We use a combination of space-based photometry from Kepler, high-precision, near-inf…

cond-mat.mtrl-sci2021★ 2 cited

The Interplay Between Solute Atoms and Vacancy Clusters in Magnesium Alloys

Peng Yi, Taisuke Sasaki, Suhas Eswarappa Prameela +2

Atomic-scale calculations indicate that both stress effects and chemical binding contribute to the redistribution of solute in the presence of vacancy clusters in magnesium alloys.…

astro-ph.GA2021★ 26 cited

A census of optically dark massive galaxies in the early Universe from magnification by lensing galaxy clusters

Xinwen Shu, Lei Yang, Daizhong Liu +10

We present ALMA 870um and JCMT SCUBA2 850um dust continuum observations of a sample of optically dark and strongly lensed galaxies in the cluster fields. The ALMA and SCUBA2 observ…

astro-ph.GA2021★ 20 cited

Molecular Gas within the Milky Way's Nuclear Wind

Frances H. Cashman, Andrew J. Fox, Blair D. Savage +9

We report the first direct detection of molecular hydrogen associated with the Galactic nuclear wind. The Far-Ultraviolet Spectroscopic Explorer spectrum of LS 4825, a B1 Ib-II sta…

astro-ph.HE2021★ 22 cited

Updated Photometry of the Yellow Supergiant Progenitor and Late-time Observations of the Type IIb Supernova 2016gkg

Charles D. Kilpatrick, David A. Coulter, Ryan J. Foley +4

We present Hubble Space Telescope (HST) observations of the type IIb supernova (SN) 2016gkg at 652, 1698, and 1795 days with the Advanced Camera for Surveys (ACS) and Wide Field Ca…

astro-ph.GA2021★ 30 cited

KODIAQ-Z: Metals and Baryons in the Cool Intergalactic and Circumgalactic Gas at 2.2<z<3.6

Nicolas Lehner, Claire Kopenhafer, John O'Meara +8

We present the KODIAQ-Z survey aimed to characterize the cool, photoionized gas at 2.2<z<3.6 in 202 HI-selected absorbers with 14.6<log N(HI)<20, i.e., the gaseous interface betwee…

math.MG2021★ 2 cited

Three proofs of the Benedetto-Fickus theorem

Dustin G. Mixon, Tom Needham, Clayton Shonkwiler +1

In 2003, Benedetto and Fickus introduced a vivid intuition for an objective function called the frame potential, whose global minimizers are fundamental objects known today as unit…