activity
20062026
most citedHigh Density Circumstellar Interaction in the Luminous Type IIn SN 2010jl: The first 1100 days

265 citations · 2k across the 53 of their papers we have counts for

collaborators

56 papers

astro-ph.IM2026

EXPO: a quantum leap in fast, wide-band X-ray polarimetry for astrophysics

Paolo Soffitta, Sebastien Guillot, Ian Hutchinson +137

The Enhanced X-ray Polarimetry Observatory (EXPO) is a mission concept proposed to ESA as an M8 candidate, with a prospective launch in 2041. Building on the scientific success of…

astro-ph.HE2025

X-Ray Observations of Old Nearby Supernovae: Constraints on Compact Object Populations and Late Interaction

Julia Ahlvind, Josefin Larsson, Dennis Alp

The properties of the population of compact objects created in core-collapse supernovae (SNe) are uncertain. X-ray observations years to decades after the explosions offer a way to…

astro-ph.SR2023

JWST NIRCam Observations of SN 1987A: Spitzer Comparison and Spectral Decomposition

Richard G. Arendt, Martha L. Boyer, Eli Dwek +24

JWST NIRCam observations at 1.5-4.5 m have provided broad and narrow band imaging of the evolving remnant of SN 1987A with unparalleled sensitivity and spatial resolution. Compa…

astro-ph.HE2023

Ejecta, Rings, and Dust in SN 1987A with JWST MIRI/MRS

O. C. Jones, P. J. Kavanagh, M. J. Barlow +31

Supernova (SN) 1987A is the nearest supernova in 400 years. Using the {\em JWST} MIRI Medium Resolution Spectrograph, we spatially resolved the ejecta, equatorial ring (ER) a…

astro-ph.HE2023★ 34 cited

JWST NIRSpec observations of Supernova 1987A -- from the inner ejecta to the reverse shock

J. Larsson, C. Fransson, B. Sargent +23

We present initial results from JWST NIRSpec integral field unit observations of the nearby Supernova (SN) 1987A. The observations provide the first spatially-resolved spectroscopy…

astro-ph.HE2023★ 9 cited

Investigating time variability of X-ray absorption in Swift GRBs

Vlasta Valan, Josefin Larsson, Björn Ahlgren

The existence of excess absorption in the X-ray spectra of GRBs is well known, but the primary location of the absorbing material is still uncertain. To gain more knowledge about t…