7 papers
The ALMA carbon monoxide supernova (ACOS) survey II. Turbulent giant molecular clouds at the positions of core-collapse supernovae
M. Solar, M. J. Michałowski, J. Nadolny +11
Context. Study of cold molecular hydrogen gas (hereafter molecular gas) provides crucial insights into its interplay with star-forming regions. However, the connection between mole…
The Hubble Constant from Blue Type Ia Supernovae
Christa Gall, Luca Izzo, Radoslaw Wojtak +1
There is a persistent tension of about between the value of the Hubble constant, as derived from the local distance ladder vs. the cosmic microwave background, signaling…
AT 2024ahzi: A Type IIP Supernova Discovered by the LSST Commissioning Camera
Kaylee de Soto, V. Ashley Villar, Jared A. Goldberg +25
As part of its commissioning, the Vera C. Rubin Observatory observed several fields repeatedly for a month with ComCam, an instrument that uses the same hardware as the LSST camera…
Diverse reddening distributions in sight lines to type Ia supernovae
Lucas Hallgren, Radoslaw Wojtak, Jens Hjorth +1
Precise cosmological constraints from type Ia supernovae require adequately accurate corrections for host-galaxy extinction. Modelling these corrections is challenged by the proble…
Stretch to stretch, dust to dust: lower-value local measurement from two-population modelling of type Ia supernovae
RadosÅaw Wojtak, Jens Hjorth
We revisit the local Hubble constant measurement from type Ia supernovae calibrated with Cepheids (SH0ES) by remodelling the supernova data using two supernova populations emerging…
Dust removal timescale in galaxies across cosmic time
Aleksandra LeÅniewska, Jens Hjorth, Christa Gall
Understanding the evolution of dust in galaxies is crucial because it affects the dynamics and cooling of gas, star formation, and chemical evolution. Recent work on dust removal i…