280 citations · 2.9k across the 59 of their papers we have counts for
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Supernova Siblings and their Parent Galaxies in the Zwicky Transient Facility Bright Transient Surve
M. L. Graham, C. Fremling, D. A. Perley +19
Supernova (SN) siblings -- two or more SNe in the same parent galaxy -- are useful tools for exploring progenitor stellar populations as well as properties of the host galaxies suc…
The Zwicky Transient Facility Type Ia supernova survey: first data release and results
S. Dhawan, A. Goobar, M. Smith +17
Type Ia supernovae (SNe~Ia) in the nearby Hubble flow are excellent distance indicators in cosmology. The Zwicky Transient Facility (ZTF) has observed a large sample of supernovae…
Less than 1% of Core-Collapse Supernovae in the local universe occur in elliptical galaxies
I. Irani, S. J. Prentice, S. Schulze +39
We present observations of three Core-collapse supernovae (CCSNe) in elliptical hosts, detected by the Zwicky Transient Facility Bright Transient Survey (BTS). SN 2019ape is a SN I…
The Hubble constant from strongly lensed supernovae with standardizable magnifications
Simon Birrer, Suhail Dhawan, Anowar J. Shajib
The dominant uncertainty in the current measurement of the Hubble constant () with strong gravitational lensing time delays is attributed to uncertainties in the mass profiles…
The Hubble Tension Revisited: Additional Local Distance Ladder Uncertainties
Edvard Mortsell, Ariel Goobar, Joel Johansson +1
In a recent paper, we investigated possible systematic uncertainties related to the Cepheid color-luminosity calibration method and their influence on the tension between the Hubbl…
Near-IR Type Ia SN distances: host galaxy extinction and mass-step corrections revisited
J. Johansson, S. B. Cenko, O. D. Fox +17
We present optical and near-infrared (NIR, -band) observations of 42 Type Ia supernovae (SNe Ia) discovered by the untargeted intermediate Palomar Transient Factory (iPTF) sur…
Sensitivity of the Hubble Constant Determination to Cepheid Calibration
Edvard Mortsell, Ariel Goobar, Joel Johansson +1
Motivated by the large observed diversity in the properties of extra-galactic extinction by dust, we re-analyse the Cepheid calibration used to infer the Hubble constant, , fr…
Non-parametric spatial curvature inference using late-universe cosmological probes
Suhail Dhawan, Justin Alsing, Sunny Vagnozzi
Inferring high-fidelity constraints on the spatial curvature parameter, , under as few assumptions as possible, is of fundamental importance in cosmology. We propose a m…
Two c's in a pod: Cosmology independent measurement of the Type Ia supernova colour-luminosity relation with a sibling pair
Rahul Biswas, Ariel Goobar, Suhail Dhawan +19
Using Zwicky Transient Facility (ZTF) observations, we identify a pair of "sibling" Type Ia supernovae (SNe Ia), i.e., hosted by the same galaxy at z = 0.0541. They exploded within…