activity
20232026
most citedHubble Space Telescope images of SN 1987A: Evolution of the ejecta and the equatorial ring from 2009 to 2022

2 citations · 2 across the 6 of their papers we have counts for

collaborators

6 papers

astro-ph.HE2026

The evolution of the mid-infrared spectrum of SN 1987A observed with the JWST/MIRI-MRS

P. J. Kavanagh, M. J. Barlow, C. Fransson +19

Supernova (SN) 1987A provides a unique laboratory for investigating many aspects of SN physics and evolution. An observation at Day 12927 (35.4 yr) since the explosion with the Mid…

astro-ph.HE2025

The compact object and innermost ejecta of SN 1987A

J. Larsson, C. Fransson, P. J. Kavanagh +12

The first JWST observations of SN 1987A provided clear evidence that a compact object is ionizing the innermost ejecta. Here we analyze a second epoch of JWST NIRSpec and MIRI/MRS…

astro-ph.SR2025

All about Cookies: The perfect compromise between softness and crispiness

Sophie Rosu

Cookies are enjoyed best when they are both crispy and soft. I investigate in which proportion the cookies are crispy and soft, and disentangle whether it makes them biscuits, cake…

astro-ph.HE2024★ 2 cited

Hubble Space Telescope images of SN 1987A: Evolution of the ejecta and the equatorial ring from 2009 to 2022

Sophie Rosu, Josefin Larsson, Claes Fransson +9

Supernova (SN) 1987A offers a unique opportunity to study how a spatially resolved SN evolves into a young supernova remnant (SNR). We present and analyze Hubble Space Telescope (H…

astro-ph.SR2024

Underestimation of the tidal force and apsidal motion in close binary systems by the perturbative approach: Comparisons with non-perturbative models

L. Fellay, M. -A. Dupret, S. Rosu

Stellar deformations play a significant role in the dynamical evolution of stars in binary systems, impacting the tidal dissipation and the outcomes of mass transfer processes. The…

astro-ph.SR2023

Using CHIRON Spectroscopy to Test the Hypothesis of a Precessing Orbit for the WN4 star EZ CMa

Krister DG. Barclay, Sophie Rosu, Noel D. Richardson +4

The bright WN4 star EZ CMa exhibits a 3.77 day periodicity in photometry, spectroscopy, and polarimetry but the variations in the measurements are not strictly phase-locked, exhibi…