141 citations · 435 across the 23 of their papers we have counts for
23 papers
Planetary Nebula NGC 2818: Revealing its complex 3D morphology
Sophia Derlopa, Stavros Akras, Philippe Amram +3
We carry out an advanced morpho-kinematic analysis of the Planetary Nebula (PN) NGC 2818, whose complex morphology is described by a basic bipolar component, filamentary structures…
On the origin of mixed morphology supernova remnants: Linking their properties to the evolution of a red supergiant progenitor star
Alexandros Chiotellis, Emmanouil Zapartas, Dominique M. -A. Meyer
Mixed-morphology supernova remnants (MMSNRs) are characterized by a shell-like morphology in the radio and centrally-peaked thermal emission in the X-ray band. The nature of this p…
Two shell- and wing-shaped supernova remnants. Investigating the molecular environments around VRO 42.05.01 and G 350.0-2.0
Maria Arias, Ping Zhou, Alexandros Chiotellis +6
Supernova remnants (SNRs) are profoundly affected by their ambient medium. We present carbon monoxide (CO) observations around two mixed morphology SNRs, VRO 42.05.01 and G 350.0-2…
Simulated non-thermal emission from SNR G1.9+0.3
Marco A. Villagran, D. O. Gómez, P. F. Velázquez +7
Supernova remnants are the nebular leftover of defunct stellar environments, resulting from the interaction between a supernova blastwave and the circumstellar medium shaped by the…
Detection of optical emission from the supernova remnant G7.7-3.7
V. Domček, J. V. Hernández Santisteban, A. Chiotellis +6
We present the first optical study of the supernova remnant (SNR) G7.7-3.7, with the aim of determining its evolutionary phase since it has been suggested to be the remnant of SN 3…
Planetary nebulae hosting accreting white dwarfs: A possible solution for the mysterious cut-off of Planetary Nebula Luminosity Function?
D. Souropanis, A. Chiotellis, P. Boumis +2
Many binary companions to the central stars of planetary nebulae (PNe) are found to be inflated, perhaps indicating that accretion onto the central star might occur during the PN p…
The sculpting of rectangular and jet-like morphologies in supernova remnants by anisotropic equatorially-confined progenitor stellar winds
P. F. Velazquez, D. M. -A. Meyer, A. Chiotellis +5
Thermonuclear and core-collapse supernova remnants (SNRs) are the nebular leftovers of defunct stars. Their morphology and emission properties provide insights into the evolutionar…
Discovery of an optical cocoon tail behind the runaway HD 185806
Z. T. Spetsieri, P. Boumis, A. Chiotellis +6
Studies on the circumstellar structures around evolved stars provide vital information on the evolution of the parent star and the properties of the local interstellar medium. In t…
Rectangular core-collapse supernova remnants: application to Puppis A
D. M. -A. Meyer, P. F. Velazquez, O. Petruk +9
Core-collapse supernova remnants are the gaseous nebulae of galactic interstellar media (ISM) formed after the explosive death of massive stars. Their morphology and emission prope…
Linking the properties of accreting white dwarfs with the ionization state of their ambient medium
D. Souropanis, A. Chiotellis, P. Boumis +5
Steadily accreting white dwarfs (WDs) are efficient sources of ionization and thus, are able to create extended ionized nebulae in their vicinity. These nebulae represent ideal too…
Spectroscopic Analysis Tool for intEgraL fieLd unIt daTacubEs (satellite): Case studies of NGC 7009 and NGC 6778 with MUSE
S. Akras, H. Monteiro, J. R. Walsh +11
Integral field spectroscopy (IFS) provides a unique capability to spectroscopically study extended sources over a 2D field of view, but it also requires new techniques and tools. I…
Deep optical study of the mixed-morphology supernova remnant G 132.7+1.3 (HB3)
P. Boumis, A. Chiotellis, V. Fragkou +8
We present optical ccd images of the large supernova remnant (SNR) G132.71.3 (HB3) covering its full extent for the first time, in the emission lines of H[N II], [S II] and…
"Ears" formation in Supernova Remnants: Overhearing an interaction history with bipolar circumstellar structures
A. Chiotellis, P. Boumis, Z. T. Spetsieri
A characteristic feature that is frequently met in nearby supernova remnants (SNRs) is the existence of two antisymmetric, local protrusions that are projected as two "ears" in the…
First 3D Morpho-Kinematic model of Supernova Remnants. The case of VRO 42.05.01 (G 166.0+4.3)
Sophia Derlopa, Panos Boumis, Alexandros Chiotellis +2
We present the first three dimensional (3D) Morpho-Kinematic (MK) model of a supernova remnant (SNR), using as a case study the Galactic SNR VRO 42.05.01. We employed the astrophys…
The Interaction of Type Ia Supernovae with Planetary Nebulae: the Case of Kepler's Supernova Remnant
A. Chiotellis, P. Boumis, Z. T. Spetsieri
One of the key methods for determining the unknown nature of Type Ia supernovae (SNe Ia) is the search for traces of interaction between the SN ejecta and the circumstellar structu…
VRO 42.05.01: A supernova remnant resulted by a supersonic, mass losing progenitor star
A. Chiotellis, P. Boumis, S. Derlopa +1
We present a model for the Galactic supernova remnant (SNR) VRO 42.05.01, suggesting that its intriguing morphology can be explained by a progenitor model of a supersonically movin…
The first 3D Morpho-kinematical model of a Supernova Remnant: The case of VRO 42.05.01 (G 166.0+4.3)
Sophia Derlopa, Panos Boumis, Alexandros Chiotellis +2
We present the preliminary results of the first 3-dimensional (3D) Morpho-Kinematical (MK) model of a supernova remnant (SNR), using as a study case the Galactic SNR VRO 42.05.01 (…
Modeling the cometary structure of the planetary nebula HFG1 based on the evolution of its binary central star V664 Cas
A. Chiotellis, P. Boumis, N. Nanouris +2
HFG1 is the first well observed planetary nebula (PN) which reveals a cometary-like structure. Its main morphological features consist of a bow shaped shell, which surrounds the ce…
The many sides of RCW 86: a type Ia supernova remnant evolving in its progenitor's wind bubble
Sjors Broersen, Alexandros Chiotellis, Jacco Vink +1
We present the results of a detailed investigation of the Galactic supernova remnant RCW 86 using the XMM-Newton X-ray telescope. RCW 86 is the probable remnant of SN 185 A.D, a su…
Early X-ray emission from Type Ia supernovae originating from symbiotic progenitors or recurrent novae
Georgios Dimitriadis, Alexandros Chiotellis, Jacco Vink
One of the key observables for determining the progenitor nature of Type Ia supernovae is provided by their immediate circumstellar medium, which according to several models should…
Modeling the interaction of thermonuclear supernova remnants with circumstellar structures: The case of Tycho's supernova remnant
A. Chiotellis, D. Kosenko, K. M. Schure +2
The well-established Type Ia remnant of Tycho's supernova (SN 1572) reveals discrepant ambient medium density estimates based on either the measured dynamics or on the X-ray emissi…
Progenitor's signatures in Type Ia supernova remnants
A. Chiotellis, D. Kosenko, K. M. Schure +1
The remnants of Type Ia supernovae can provide important clues about their progenitor-histories. We discuss two well-observed supernova remnants (SNRs) that are believed to result…
The imprint of a symbiotic binary progenitor on the properties of Kepler's supernova remnant
A. Chiotellis, K. M. Schure, Jacco Vink
We present a model for the Type Ia supernova remnant (SNR) of SN 1604, also known as Kepler's SNR. We find that its main features can be explained by a progenitor model of a symbio…