76 citations · 187 across the 8 of their papers we have counts for
8 papers
Kinematics, structure and abundances of supernova remnant 0540-69.3
P. Lundqvist, N. Lundqvist, Yu. A. Shibanov
The structure, elemental abundances, physical conditions of the LMC supernova remnant (SNR) 0540-69.3 and its surroundings were investigated using [O III] imaging and spectroscopy.…
Atacama Compact Array Observations of the Pulsar-Wind Nebula of SNR 0540-69.3
P. Lundqvist, N. Lundqvist, C. Vlahakis +6
We present observations of the pulsar-wind nebula (PWN) region ofSNR 0540-69.3. The observations were made with the Atacama Compact Array (ACA) in Bands 4 and 6. We also add radio…
No trace of a single-degenerate companion in late spectra of SNe 2011fe and 2014J
P. Lundqvist, A. Nyholm, F. Taddia +9
Left-over, ablated material from a possible non-degenerate companion can reveal itself after about one year in spectra of Type Ia SNe (SNe Ia). We have searched for such material i…
Properties of the three-dimensional structure in the central region of the supernova remnant SNR 0540-69.3
C. Sandin, P. Lundqvist, N. Lundqvist +3
We present and discuss new visual wavelength-range observations of the inner regions of the supernova remnant SNR 0540-69.3 that is located in the Large Magellanic Cloud (LMC). The…
Spectral evolution and polarization of variable structures in the pulsar wind nebula of PSR B0540-69.3
N. Lundqvist, P. Lundqvist, C. -I. Björnsson +4
We present high spatial resolution optical imaging and polarization observations of the PSR B0540-69.3 and its highly dynamical pulsar wind nebula (PWN) performed with HST, and com…
Optical identification of the 3C 58 pulsar wind nebula
Yuri Shibanov, Natalia Lundqvist, Peter Lundqvist +2
We have performed a deep optical imaging of 3C 58 SNR with the NOT in the B and V bands to detect the optical counterpart of the associated pulsar J0295+6449 and its torus-like win…
High resolution spectroscopy of the line emission from the inner circumstellar ring of SN 1987A and its hot spots
Per Groeningsson, Claes Fransson, Peter Lundqvist +8
We discuss high resolution VLT/UVES observations (FWHM ~ 6 km/s) from October 2002 (day ~5700 past explosion) of the shock interaction of SN 1987A and its circumstellar ring. A neb…
Coronal emission from the shocked circumstellar ring of SN 1987A
Per Groeningsson, Claes Fransson, Peter Lundqvist +5
High resolution spectra with UVES/VLT of SN 1987A from December 2000 until November 2005 show a number of high ionization lines from gas with velocities of roughly 350 km/s, emergi…