A5064892600- Gamma-ray bursts and supernovae
- Astrophysics and Cosmic Phenomena
- Neutrino Physics Research
- CCD and CMOS Imaging Sensors
- Astro and Planetary Science
- Astronomy and Astrophysical Research
- Earthquake Detection and Analysis
Johns Hopkins University
2023-2024
Bloomberg (United States)
2024
Abstract In an effort to search for faint sources of emission over arbitrary timescales, we present a novel method analyzing forced photometry light curves in difference imaging from optical surveys. Our “ATLAS Clean,” or ATClean, utilizes the reported fluxes, uncertainties, and fits point-spread function (PSF) images quantify statistical significance individual measurements. We apply this control across image determine whether any source flux is data range specific timescales. From ATLAS o...
Abstract Gamma-ray bursts produce afterglows that can be observed across the electromagnetic spectrum and provide insight into nature of their progenitors. While most telescopes observe are designed to rapidly react trigger information, Transiting Exoplanet Survey Satellite (TESS) continuously monitors sections sky at cadences between 30 minutes 200 s. This provides TESS with capability serendipitously observing optical afterglow GRBs. We conduct first extensive search for known GRBs in...
In an effort to search for faint sources of emission over arbitrary timescales, we present a novel method analyzing forced photometry light curves in difference imaging from optical surveys. Our "ATLAS Clean'' or ATClean, utilizes the reported fluxes, uncertainties, and fits point-spread function images quantify statistical significance individual measurements. We apply this control across image determine whether any source flux is data range specific timescales. From ATLAS $o$-band at site...
We present early observations and analysis of the double-peaked Type IIb supernova (SN IIb) 2021zby. $TESS$ captured prominent shock cooling peak SN 2021zby within first $\sim$10 days after explosion with a 30-minute cadence. optical near-infrared spectral series 2021zby, including three spectra during phase. Using multi-band model fit, we find that inferred properties its progenitor are consistent red supergiant or yellow supergiant, an envelope mass $\sim$0.3-3.0 M$_\odot$ radius...
Gamma-ray bursts produce afterglows that can be observed across the electromagnetic spectrum and provide insight into nature of their progenitors. While most telescopes observe are designed to rapidly react trigger information, Transiting Exoplanet Survey Satellite (TESS) continuously monitors sections sky at cadences between 30 minutes 200 seconds. This provides TESS with capability serendipitously observing optical afterglow GRBs. We conduct first extensive search for known GRBs in...