Abstract We present the Spectroscopic Classification of Astronomical Transients (SCAT)
survey, which is dedicated to spectrophotometric observations of transient objects such as …

Type Ia supernovae (SNe Ia) were instrumental in establishing the acceleration of the
universe's expansion. By virtue of their combination of distance reach, precision, and …

Context. The Hubble diagram of type-Ia supernovae (SNe-Ia) provides cosmological
constraints on the nature of dark energy with an accuracy limited by the flux calibration of …

The ongoing optical time-domain astronomy surveys are routinely reporting fifty transient
candidates per night. Here, I investigate the demographics of astronomical transients and …

With the increasingly large number of Type Ia supernova being detected by current-
generation survey telescopes, and even more expected with the upcoming Rubin …

The SCALA system provides a physical flux calibration for the SuperNova Integral Field
Spectrograph (SNIFS) mounted to the University of Hawaii 2.2 m telescope on Mauna Kea …

Type Ia supernovae are the most direct cosmological probe to study dark energy in the
recent Universe, for which the photometric calibration of astronomical instruments remains …

We calibrate spectrophotometric optical spectra of 32 stars commonly used as standard
stars, referenced to 14 stars already on the Hubble Space Telescope–based CALSPEC flux …

Abstract Die Messung der dunklen Energie Ω (Λ) und des equation-of-state Parameters 𝑤
spielen in der Kosmologie eine entscheidende Rolle. Das Hubble-Diagramm einer …

We review the needs of the supernova community for improvements in survey coordination
and data sharing that would significantly boost the constraints on dark energy using samples …