A5082160255- Galaxies: Formation, Evolution, Phenomena
- Gamma-ray bursts and supernovae
- Astrophysical Phenomena and Observations
- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Astronomical Observations and Instrumentation
- Dark Matter and Cosmic Phenomena
- Medical Imaging Techniques and Applications
- Astrophysics and Cosmic Phenomena
- Cardiac Imaging and Diagnostics
- Pulsars and Gravitational Waves Research
- Astro and Planetary Science
- Cancer, Hypoxia, and Metabolism
- Non-Invasive Vital Sign Monitoring
- Ionosphere and magnetosphere dynamics
- Hippo pathway signaling and YAP/TAZ
- Geomagnetism and Paleomagnetism Studies
- Cosmology and Gravitation Theories
- Solar and Space Plasma Dynamics
- Adaptive optics and wavefront sensing
- Receptor Mechanisms and Signaling
- History and Developments in Astronomy
University of Wyoming
2021-2024
California State University, Long Beach
2021-2024
In this third paper of the series reporting on reverberation mapping (RM) campaign active galactic nuclei with asymmetric H$\beta$ emission-line profiles, we present results for 15 Palomar-Green (PG) quasars using spectra obtained between end 2016 to May 2021. This combines long time spans relatively high cadence. For 8 objects, both lags from entire light curves and measurements individual observing seasons are provided. Reverberation 9 our targets has been attempted first time, while 6...
We report the results of long-term reverberation mapping (RM) campaigns nearby active galactic nuclei (AGN) NGC 4151, spanning from 1994 to 2022, based on archived observations FAST Spectrograph Publicly Archived Programs and our new with 2.3m telescope at Wyoming Infrared Observatory. reduce calibrate all spectra in a consistent way, derive light curves broad H$\beta$ line 5100\,{\AA} continuum. Continuum are also constructed using public archival photometric data increase sampling...
Abstract We report first-time reverberation-mapping results for 14 active galactic nuclei (AGNs) from the ongoing Monitoring AGNs with H β Asymmetry campaign (MAHA). These utilize optical spectra obtained Long Slit Spectrograph on Wyoming Infrared 2.3 m Telescope between 2017 November and 2023 May. MAHA combines long-duration monitoring high cadence. multiple observing seasons nine of objects. include time lags, supermassive black hole masses, velocity-resolved lags. The lags allow us to...
Abstract The vertical kinematics of stars near the Sun can be used to measure total mass distribution Galactic disk and study out-of-equilibrium dynamics. With contemporary stellar surveys, tracers dynamics are so numerous well measured that shapes underlying orbits almost directly visible in data through element abundances or even density. These infer a model for Milky Way, enabling constraints on dark matter inner galaxy. Here, we present flexible foliating position–velocity phase space...
We present the results of photometric and spectroscopic monitoring campaigns changing look AGN NGC 3516 carried out in 2018 to 2020 covering wavelength range from X-ray optical. The facilities included telescopes CMO SAI MSU, 2.3-m WIRO telescope, XRT UVOT Swift. found that brightened a high state could be classified as Sy1.5 during late spring 2020. have measured time delays responses Balmer He II 4686 lines continuum variations. In case best-characterized broad H-beta line, delay...
The vertical kinematics of stars near the Sun can be used to measure total mass distribution Galactic disk and study out-of-equilibrium dynamics. With contemporary stellar surveys, tracers dynamics are so numerous well measured that shapes underlying orbits almost directly visible in data through element abundances or even density. These infer a model for Milky Way, enabling constraints on dark matter inner galaxy. Here we present flexible foliating position-velocity phase space with orbits,...
Measurements of the accelerations stars enabled by time-series extreme-precision spectroscopic observations, from pulsar timing, and eclipsing binary in Solar Neighborhood offer insights into mass distribution Milky Way that do not rely on traditional equilibrium modeling. Given measured accelerations, we can determine a total density, this, accounting for stars, gas, dust, infer amount dark matter. Leveraging FIRE-2 simulations Way-mass galaxies, compare vertical acceleration profiles...
We report first-time reverberation mapping results for 14 AGNs from the ongoing Monitoring with H$\beta$ Asymmetry campaign (MAHA). These utilize optical spectra obtained Long Slit Spectrograph on Wyoming Infrared 2.3m Telescope between 2017 November-2023 May. MAHA combines long-duration monitoring high cadence. multiple observing seasons 9 of objects. include time lags, supermassive black hole masses, and velocity-resolved lags. The lags allow us to investigate kinematics broad-line region.
Abstract Measurements of the accelerations stars enabled by time-series extreme-precision spectroscopic observations, pulsar timing, and eclipsing binary in solar neighborhood offer insights into mass distribution Milky Way that do not rely on traditional equilibrium modeling. Given measured accelerations, we can determine a total density infer amount dark matter (DM) accounting for stars, gas, dust. Leveraging FIRE-2 simulations Way–mass galaxies compare vertical acceleration profiles...
In this third paper of the series reporting on reverberation mapping (RM) campaign active galactic nuclei with asymmetric H$β$ emission-line profiles, we present results for 15 Palomar-Green (PG) quasars using spectra obtained between end 2016 to May 2021. This combines long time spans relatively high cadence. For 8 objects, both lags from entire light curves and measurements individual observing seasons are provided. Reverberation 9 our targets has been attempted first time, while 6 others...
We report the results of long-term reverberation mapping (RM) campaigns nearby active galactic nuclei (AGN) NGC 4151, spanning from 1994 to 2022, based on archived observations FAST Spectrograph Publicly Archived Programs and our new with 2.3m telescope at Wyoming Infrared Observatory. reduce calibrate all spectra in a consistent way, derive light curves broad H$β$ line 5100\,Å continuum. Continuum are also constructed using public archival photometric data increase sampling cadences....