Michael Rizzo Smith
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View article: Handy Relation between Binary Black Hole Merger Times and Host Galaxy Properties
Handy Relation between Binary Black Hole Merger Times and Host Galaxy Properties Open
Over the past 15 yr, the evidence has clearly demonstrated that massive black hole (MBH) binary merger timescales depend strongly on the structural and kinematic properties of their host galaxy. Stellar density, gas content, shape, and kin…
View article: Handy Relation Between Binary Black Hole Merger Times and Host Galaxy Properties
Handy Relation Between Binary Black Hole Merger Times and Host Galaxy Properties Open
Over the past 15 years, the evidence has clearly demonstrated that massive black hole (MBH) binary merger timescales depend strongly on the structural and kinematic properties of their host galaxy. Stellar density, gas content, shape and k…
View article: A planetary collision afterglow and transit of the resultant debris cloud
A planetary collision afterglow and transit of the resultant debris cloud Open
Planets grow in rotating disks of dust and gas around forming stars, some of which can subsequently collide in giant impacts after the gas component is removed from the disk. Monitoring programs with the warm Spitzer mission have recorded …
View article: Constraints on pre-SN outbursts from the progenitor of SN 2023ixf using the large binocular telescope
Constraints on pre-SN outbursts from the progenitor of SN 2023ixf using the large binocular telescope Open
The progenitor of SN 2023ixf was an ∼104.8 to $10^{5.0}\, \text{L}_\odot$ star (∼9 to $14\, \text{M}_\odot$ at birth) obscured by a dusty $\dot{M} \simeq 10^{-5}\, \text{M}_\odot \rm \, yr^{-1}$ wind with a visual optical depth of τV ≃ 13.…
View article: ASASSN-21qj astronomical observations
ASASSN-21qj astronomical observations Open
Data from astronomical observatories looking at the star ASASSN-21qj.
View article: ASASSN-21qj astronomical observations
ASASSN-21qj astronomical observations Open
Data from astronomical observatories looking at the star ASASSN-21qj.
View article: Constraints on pre-SN outbursts from the progenitor of SN 2023ixf using the Large Binocular Telescope
Constraints on pre-SN outbursts from the progenitor of SN 2023ixf using the Large Binocular Telescope Open
The progenitor of SN 2023ixf was a $\sim$10$^{4.8}$ to $10^{5.0}\rm ~L_\odot$ star ($\sim$9 to $14 \rm~M_\odot$ at birth) obscured by a dusty $\dot{M} \simeq 10^{-5} \rm~M_\odot~yr^{-1}$ wind with a visual optical depth of $τ_V \simeq 13$.…
View article: The Late Time Optical Evolution of Twelve Core-Collapse Supernovae: Detection of Normal Stellar Winds
The Late Time Optical Evolution of Twelve Core-Collapse Supernovae: Detection of Normal Stellar Winds Open
We analyze the late time evolution of 12 supernovae (SNe) occurring over the last ${\sim}$41 years, including nine Type IIP/L, two IIb, and one Ib/c, using UBVR optical data from the Large Binocular Telescope (LBT) and difference imaging. …
View article: The Galactic Nova Rate: Estimates from the ASAS-SN and Gaia Surveys
The Galactic Nova Rate: Estimates from the ASAS-SN and Gaia Surveys Open
We present the first estimate of the Galactic nova rate based on optical transient surveys covering the entire sky. Using data from the All-Sky Automated Survey for Supernovae (ASAS-SN) and Gaia—the only two all-sky surveys to report class…