44 citations · 248 across the 16 of their papers we have counts for
16 papers
Search For a Counterpart to the Subsolar Mass Gravitational Wave Candidate S251112cm
Nicholas Vieira, Noah Franz, Bhagya Subrayan +49
The recent candidate gravitational-wave (GW) alert from a compact object merger involving at least one subsolar mass (SSM) object has prompted questions about their origins. S25111…
SN 2024abfl: A Flat-Plateau, Low-Luminosity Type IIP Supernova with Early CSM Interaction
Madison Gerard, Jennifer E. Andrews, Geoffrey C. Clayton +29
We present photometric and spectroscopic observations of SN 2024abfl, a low-luminosity Type IIP supernova (LLSN) discovered shortly after explosion. The transient reached a peak ab…
A Multiwavelength Autopsy of the Interacting IIn Supernova 2020ywx: Tracing its Progenitor Mass-Loss History for 100 Years before Death
Raphael Baer-Way, Poonam Chandra, Maryam Modjaz +31
While the subclass of interacting supernovae with narrow hydrogen emission lines (SNe IIn) consists of some of the longest-lasting and brightest SNe ever discovered, their progenit…
Asymmetries and Circumstellar Interaction in the Type II SN 2024bch
Jennifer E. Andrews, Manisha Shrestha, K. Azalee Bostroem +29
We present a comprehensive multi-epoch photometric and spectroscopic study of SN 2024bch, a nearby (19.9 Mpc) Type II supernova (SN) with prominent early high ionization emission l…
SN 2022jox: An extraordinarily ordinary Type II SN with Flash Spectroscopy
Jennifer E. Andrews, Jeniveve Pearson, Griffin Hosseinzadeh +20
We present high cadence optical and ultraviolet observations of the Type II supernova (SN), SN 2022jox which exhibits early spectroscopic high ionization flash features of \ion{H}{…
Characterizing the Rapid Hydrogen Disappearance in SN2022crv: Evidence of a Continuum between Type Ib and IIb Supernova Properties
Yize Dong, Stefano Valenti, Chris Ashall +52
We present optical and near-infrared observations of SN~2022crv, a stripped envelope supernova in NGC~3054, discovered within 12 hrs of explosion by the Distance Less Than 40 Mpc S…
Broad-emission-line dominated hydrogen-rich luminous supernovae
P. J. Pessi, J. P. Anderson, G. Folatelli +27
Hydrogen-rich Type II supernovae (SNe II) are the most frequently observed class of core-collapse SNe (CCSNe). However, most studies that analyse large samples of SNe II lack event…
Identifying the SN 2022acko progenitor with JWST
Schuyler D. Van Dyk, K. Azalee Bostroem, WeiKang Zheng +17
We report on analysis using the James Webb Space Telescope (JWST) to identify a candidate progenitor star of the Type II-plateau supernova SN 2022acko in the nearby, barred spiral…
SN 2016dsg: A Thermonuclear Explosion Involving A Thick Helium Shell
Yize Dong, Stefano Valenti, Abigail Polin +29
A thermonuclear explosion triggered by a helium-shell detonation on a carbon-oxygen white dwarf core has been predicted to have strong UV line blanketing at early times due to the…
High Cadence TESS and ground-based data of SN 2019esa, the less energetic sibling of SN 2006gy
Jennifer E. Andrews, Jeniveve Pearson, M. J. Lundquist +16
We present photometric and spectroscopic observations of the nearby ( Mpc) interacting supernova (SN) 2019esa, discovered within hours of explosion and serendipitously…
SOAR/Goodman Spectroscopic Assessment of Candidate Counterparts of the LIGO-Virgo Event GW190814
Douglas Tucker, Matthew Wiesner, Sahar Allam +140
On 2019 August 14 at 21:10:39 UTC, the LIGO/Virgo Collaboration (LVC) detected a possible neutron star-black hole merger (NSBH), the first ever identified. An extensive search for…
The Iron Yield of Normal Type II Supernovae
Ó. Rodríguez, N. Meza, J. Pineda-García +1
We present Ni mass estimates for 110 normal Type II supernovae (SNe II), computed here from their luminosity in the radioactive tail. This sample consists of SNe from the li…
Constraints on the Physical Properties of GW190814 through Simulations based on DECam Follow-up Observations by the Dark Energy Survey
R. Morgan, M. Soares-Santos, J. Annis +99
On 14 August 2019, the LIGO and Virgo Collaborations detected gravitational waves from a black hole and a 2.6 solar mass compact object, possibly the first neutron star -- black ho…
Stripped-envelope core-collapse supernova Ni masses: Persistently larger values than supernovae type II
Nicolás Meza, J. P. Anderson
The mass of synthesised radioactive material is an important power source for all supernova (SN) types. Anderson 2019 recently compiled literature values and obtained Ni dis…
The Extraplanar Type II Supernova ASASSN-14jb in the Nearby Edge-on Galaxy ESO 467-G051
Nicolas Meza, J. L. Prieto, A. Clocchiatti +10
We present optical photometry and spectroscopy of the Type II supernova ASASSN-14jb, together with VLT MUSE IFU observations of its host galaxy and a nebular-phase spectrum. This S…
The QUEST-La Silla AGN Variability Survey
Régis Cartier, Paulina Lira, Paolo Coppi +7
We present the characterization and initial results from the QUEST-La Silla AGN variability survey. This is an effort to obtain well sampled optical light curves in extragalactic f…