Publications (8)
Seeing Double: ASASSN-18bt Exhibits a Two-Component Rise in the Early-Time K2 Light Curve
B. J. Shappee, T. W. -s. Holoien, M. R. Drout +109
On 2018 Feb. 4.41, the All-Sky Automated Survey for SuperNovae (ASAS-SN) discovered ASASSN-18bt in the K2 Campaign 16 field. With a redshift of z=0.01098 and a peak apparent magnit…
Thomson Thick X-ray Absorption in a Broad Absorption Line Quasar PG0946+301
S. Mathur, P. J. Green, N. Arav +14
We present a deep ASCA observation of a Broad Absorption Line Quasar (BALQSO) PG0946+301. The source was clearly detected in one of the gas imaging spectrometers, but not in any ot…
Search for the Rare Decay K_{L}\toÏ^{0}Ï^{0}γ
KTeV Collaboration, E. Abouzaid, M. Arenton +49
The KTeV E799 experiment has conducted a search for the rare decay via the topology (where ). Due to Bose sta…
Observation of the Decay Xi^0 --> Sigma^+ mu^- nu(bar)
KTeV Collaboration, E. Abouzaid, T. Alexopoulos +57
The Xi^0 muon semi-leptonic decay has been observed for the first time with nine identified events using the KTeV beam line and detector at Fermilab. The decay is normalized to the…
Measurements of the Branching Fractions and Decay Distributions for KL->Ïμνγand KL->Ïeνγ
T. Alexopoulos, T. Andre, M. Arenton +56
We present measurements of R_Kl3rad = Gamma(KL->Ï\ellνγ; Egcm > 10 MeV)/Gamma(KL->Ï\ellν), where ell = mu or e, and Egcm is the photon energy in the kaon rest frame. These mea…
Photometric and Spectroscopic Properties of Type Ia Supernova 2018oh with Early Excess Emission from the 2 Observations
W. Li, X. Wang, J. Vinkó +160
Supernova (SN) 2018oh (ASASSN-18bt) is the first spectroscopically-confirmed type Ia supernova (SN Ia) observed in the field. The data revealed an excess emission…
Optical Spectral Variability of the Very-High-Energy Gamma-Ray Blazar 1ES 1011+496
M. Boettcher, B. Hivick, J. Dashti +10
We present results of five years of optical (UBVRI) observations of the very-high-energy gamma-ray blazar 1ES 1011+496 at the MDM Observatory. We calibrated UBVRI magnitudes of fiv…
K2 Observations of SN 2018oh Reveal a Two-Component Rising Light Curve for a Type Ia Supernova
G. Dimitriadis, R. J. Foley, A. Rest +145
We present an exquisite, 30-min cadence Kepler (K2) light curve of the Type Ia supernova (SN Ia) 2018oh (ASASSN-18bt), starting weeks before explosion, covering the moment of explo…