A5090882838- Gamma-ray bursts and supernovae
- Astronomy and Astrophysical Research
- Stellar, planetary, and galactic studies
- Astrophysics and Cosmic Phenomena
- Galaxies: Formation, Evolution, Phenomena
- Astrophysical Phenomena and Observations
- Bipolar Disorder and Treatment
- Pulsars and Gravitational Waves Research
- Radio Astronomy Observations and Technology
- Astronomical Observations and Instrumentation
- Computational Physics and Python Applications
- Pharmacological Effects and Toxicity Studies
- Scientific Computing and Data Management
- Botulinum Toxin and Related Neurological Disorders
- Adaptive optics and wavefront sensing
- Epilepsy research and treatment
- Stroke Rehabilitation and Recovery
- Phosphodiesterase function and regulation
- Advanced Data Storage Technologies
- Astro and Planetary Science
- Parkinson's Disease Mechanisms and Treatments
- Cerebral Palsy and Movement Disorders
- Electrolyte and hormonal disorders
- Biological Research and Disease Studies
- Coagulation, Bradykinin, Polyphosphates, and Angioedema
University of Illinois Urbana-Champaign
2022-2024
Space Telescope Science Institute
2016-2023
International University of the Caribbean
2023
Children's Hospital of Eastern Ontario
2014
Allergan (Ireland)
2013
Allergan (United States)
2013
Dalhousie University
2000-2006
Case Western Reserve University
2001
The University of Texas Southwestern Medical Center
2001
GlaxoSmithKline (United Kingdom)
2001
Abstract The Astropy Project supports and fosters the development of open-source openly developed Python packages that provide commonly needed functionality to astronomical community. A key element is core package astropy , which serves as foundation for more specialized projects packages. In this article, we summarize features in recent major release, version 5.0, updates on Project. We then discuss supporting a broader ecosystem interoperable packages, including connections with several...
Abstract The Astropy Project supports and fosters the development of open-source openly developed Python packages that provide commonly needed functionality to astronomical community. A key element is core package astropy , which serves as foundation for more specialized projects packages. In this article, we an overview organization project summarize features in package, recent major release, version 2.0. We then describe infrastructure designed facilitate support a broader ecosystem...
We present panchromatic observations and modeling of supernova (SN) 2020tlf, the first normal type II-P/L SN with confirmed precursor emission, as detected by Young Supernova Experiment transient survey Pan-STARRS1 telescope. Pre-explosion emission was in $riz-$bands at 130 days prior to 2020tlf persisted relatively constant flux until light. Soon after discovery, "flash" spectroscopy revealed prominent narrow symmetric lines ($v_w < 300$ km s$^{-1}$) that resulted from photo-ionization...
Abstract We present ultraviolet/optical/near-infrared observations and modeling of Type II supernovae (SNe II) whose early time ( δ t < 2 days) spectra show transient, narrow emission lines from shock ionization confined r 10 15 cm) circumstellar material (CSM). The observed electron-scattering broadened line profiles (i.e., IIn-like) H i , He i/ii C iv N iii/iv/v the CSM persist on a characteristic timescale IIn ) that marks transition to lower-density emergence Doppler-broadened...
As we approach the James Webb Space Telescope (JWST) era, several studies have emerged that aim to: 1) characterize how instruments will perform and 2) determine what atmospheric spectral features could theoretically be detected using transmission emission spectroscopy. To some degree, all these relied on modeling of JWST's theoretical instrument noise. With under two years left until launch, it is imperative exoplanet community begins to digest integrate into their observing plans, as well...
Pandeia is the exposure time calculator (ETC) system developed for James Webb Space Telescope (JWST) that will be used creating JWST proposals. It includes a simulation-hybrid Python engine calculates two-dimensional pixel-by-pixel signal and noise properties of instruments. This allows appropriate handling realistic point spread functions, MULTIACCUM detector readouts, correlated readnoise, multiple photometric spectral extraction strategies. support all observing modes, including imaging,...
We present simulations from the new "Figuring Out Gas & Galaxies in Enzo" (FOGGIE) project. In contrast to most extant of galaxy formation, which concentrate computational resources on galactic disks and spheroids with fluid particle elements fixed mass, FOGGIE focus extreme spatial mass resolution circumgalactic medium (CGM) surrounding galaxies. Using Enzo code a refinement scheme, reaches resolutions 381 comoving $h^{-1}$ pc resolves extremely low masses ($\lesssim 1$--$100$ Msun out 100...
We present the Young Supernova Experiment Data Release 1 (YSE DR1), comprised of processed multi-color Pan-STARRS1 (PS1) griz and Zwicky Transient Facility (ZTF) gr photometry 1975 transients with host-galaxy associations, redshifts, spectroscopic/photometric classifications, additional data products from 2019 November 24 to 2021 December 20. YSE DR1 spans discoveries observations young fast-rising supernovae (SNe) that persist for over a year, redshift distribution reaching z~0.5. relative...
ABSTRACT A growing number of supernovae (SNe) are now known to exhibit evidence for significant interaction with a dense, pre-existing, circumstellar medium (CSM). SNe Ibn comprise one such class that can be characterized by both rapidly evolving light curves and persistent narrow He i lines. The origin dense CSM in these systems remains pressing question, specifically concerning the progenitor system mass-loss mechanism. In this paper, we present multiwavelength data Type SN 2020nxt,...
We present optical and near-infrared (NIR) observations of the Type Icn supernova (SN Icn) 2022ann, fifth member its newly identified class SNe. Its early spectra are dominated by narrow carbon oxygen P-Cygni features with absorption velocities 800 km/s; slower than other SNe indicative interaction a dense, H/He-poor circumstellar medium (CSM) that is outflowing typical Wolf-Rayet wind velocity $>$1000 km/s. identify helium in NIR obtained two weeks after maximum at three weeks,...
Abstract We present a new photometric pipeline for the detection of pre-supernova (pre-SN) emission in Young Supernova Experiment (YSE) sky survey. The method described is applied to SN 2020tlf, type II with precursor last ~100 days before first light. re-analyze YSE griz -band light curves 2020tlf and provide revised pre-explosion photometry that includes robust list confident limiting magnitudes. Compared results W. V. Jacobson-Galán et al., this analysis yields fewer total r / i z pre-SN...
Abstract We present a detailed analysis of AT 2020nov, tidal disruption event (TDE) in the center its host galaxy, located at redshift z = 0.083. 2020nov exhibits unique features, including double-peaked Balmer emission lines, broad UV/optical flare, and peak log luminosity extreme-ultraviolet (EUV) estimated <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mo>∼</mml:mo> <mml:mn>45.6</mml:mn> <mml:msubsup> <mml:mrow> <mml:mn>6</mml:mn> </mml:mrow>...
The role of AGN in quenching galaxies and driving the evolution from star-forming to quiescent remains a key question galaxy evolution. We present evidence Mapping Nearby Galaxies at APO (MaNGA) survey for fading activity 6/93 post-starburst galaxies. These six show extended emission line regions (EELRs) consistent with ionization past activity, analogous "Hanny's voorwerp" other systems where OIII5007 is bright enough be visible broadband imaging. Using infrared luminosities IRAS estimate...
Abstract We present Young Supernova Experiment grizy photometry of SN 2021hpr, the third Type Ia supernova sibling to explode in Cepheid calibrator galaxy, NGC 3147. Siblings are useful for improving SN-host distance estimates and investigating their contributions toward intrinsic scatter (post-standardization residual estimates). thus develop a principled Bayesian framework analyzing siblings. At its core is cosmology-independent relative parameter, σ Rel : dispersion siblings one another...
We present ultraviolet/optical/near-infrared observations and modeling of Type II supernovae (SNe II) whose early-time ($\delta t < 2$ days) spectra show transient, narrow emission lines from shock ionization confined ($r 10^{15}$ cm) circumstellar material (CSM). The observed electron-scattering broadened line profiles (i.e., IIn-like) HI, He I/II, C III/IV, N III/IV/V the CSM persist on a characteristic timescale ($t_{\rm IIn}$) that marks transition to lower-density emergence...
Administration of phosphodiesterase 4 (PDE4) inhibitors suppresses the pathogenesis associated with experimental autoimmune encephalomyelitis (EAE), an animal model multiple sclerosis (MS). In present study, we compared effects rolipram and 4-[2-(3,4-bis-difluoromethoxyphenyl)-2-[4-(1,1,1,3,3,3-hexafluoro-2-hydroxypropan-2-yl)-phenyl]-ethyl]-3-methylpyridine-1-oxide (L-826,141), a novel nonbrain penetrant PDE4 inhibitor, on onset severity clinical signs in chronic, nonrelapsing/remitting...
A growing number of supernovae (SNe) are now known to exhibit evidence for significant interaction with a dense, pre-existing, circumstellar medium (CSM). SNe Ibn comprise one such class that can be characterised by both rapidly evolving light curves and persistent narrow He I lines. The origin dense CSM in these systems remains pressing question, specifically concerning the progenitor system mass-loss mechanism. In this paper, we present multi-wavelength data Type SN 2020nxt, including...