Giorgos Leloudas

Giorgos Leloudas

Senior Researcher

DTU SPACE
National Space Institute

Astrophysics and Atmospheric Physics

Technical University of Denmark

Elektrovej

Building 327, room 220

2800 Kgs. Lyngby

Ph.
Fax +45 45 25 95 75
E-mail giorgos@space.dtu.dk
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2020
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An outflow powers the optical rise of the nearby, fast-evolving tidal disruption event AT2019qiz

Nicholl, M ; Wevers, T ; Oates, S R ; Alexander, K D ; Leloudas, G ; Onori, F ; Jerkstrand, A ; Gomez, S ; Campana, S ; Arcavi, I ; Charalampopoulos, P ; Gromadzki, M ; Ihanec, N ; Jonker, P G ; Lawrence, A ; Mandel, I ; Schulze, S ; Short, P ; Burke, J ; McCully, C ; Hiramatsu, D ; Howell, D A ; Pellegrino, C ; Abbot, H ; Anderson, J P ; Berger, E ; Blanchard, P K ; Cannizzaro, G ; Chen, T-W ; Dennefeld, M ; Galbany, L ; González-Gaitán, S ; Hosseinzadeh, G ; Inserra, C ; Irani, I ; Kuin, P ; Müller-Bravo, T ; Pineda, J ; Ross, N P ; Roy, R ; Smartt, S J ; Smith, K W ; Tucker, B ; Wyrzykowski, Ł ; Young, D R
in: Monthly Notices of the Royal Astronomical Society, vol: 499, issue: 1, pages: 482-504

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2020     |    DOI: https://doi.org/10.1093/mnras/staa2824

 

Late-phase Spectropolarimetric Observations of Superluminous Supernova SN 2017egm to Probe the Geometry of the Inner Ejecta

Saito, Sei ; Tanaka, Masaomi ; Moriya, Takashi J. ; Bulla, Mattia ; Leloudas, Giorgos ; Inserra, Cosimo ; Lee, Chien Hsiu ; Kawabata, Koji S. ; Mazzali, Paolo
in: Astrophysical Journal, vol: 894, issue: 2

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2020     |    DOI: https://doi.org/10.3847/1538-4357/ab873b

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Polarimetry of the superluminous transient ASASSN-15lh

Maund, J. R. ; Leloudas, G. ; Malesani, D. B. ; Patat, F ; Sollerman, J. ; Postigo, A. de Ugarte
in: Monthly Notices of the Royal Astronomical Society

Type: Journal article (Peer reviewed)

Status: Accepted/In press     |    Year: 2020     |    DOI: https://doi.org/10.1093/mnras/staa2517

 

The Lowest of the Low: Discovery of SN 2019gsc and the Nature of Faint Iax Supernovae

Srivastav, Shubham ; Smartt, Stephen J. ; Leloudas, Giorgos ; Huber, Mark E. ; Chambers, Ken ; Malesani, Daniele B. ; Hjorth, Jens ; Gillanders, James H. ; Schultz, A. ; Sim, Stuart A. ; Auchettl, Katie ; Fynbo, Johan P. U. ; Gall, Christa ; McBrien, Owen R. ; Rest, Armin ; Smith, Ken W. ; Wojtak, Radoslaw ; Young, David R.
in: Astrophysical Journal Letters, vol: 892, issue: 2

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2020     |    DOI: https://doi.org/10.3847/2041-8213/ab76d5

 

The rise and fall of an extraordinary Ca-rich transient - The discovery of ATLAS19dqr/SN 2019bkc

Prentice, S. J. ; Maguire, K. ; Flörs, A. ; Taubenberger, S. ; Inserra, C. ; Frohmaier, C. ; Chen, T. W. ; Anderson, J. P. ; Ashall, C. ; Clark, P. ; Fraser, M. ; Galbany, L. ; Gal-Yam, A. ; Gromadzki, M. ; Gutiérrez, C. P. ; James, P. A. ; Jonker, P. G. ; Kankare, E. ; Leloudas, G. ; Magee, M. R. ; Mazzali, P. A. ; Nicholl, M. ; Pursiainen, M. ; Skillen, K. ; Smartt, S. J. ; Smith, K. W. ; Vogl, C. ; Young, D. R.
in: Astronomy & Astrophysics, vol: 635

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2020     |    DOI: https://doi.org/10.1051/0004-6361/201936515

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The Tidal Disruption Event AT 2018hyz I: Double-peaked emission lines and a flat Balmer decrement

Short, P. ; Nicholl, M. ; Lawrence, A. ; Gomez, S. ; Arcavi, I. ; Wevers, T. ; Leloudas, G. ; Schulze, S. ; Anderson, J. P. ; Berger, E. ; Blanchard, P. K. ; Burke, J. ; Charalampopoulos, P. ; Chornock, R. ; Galbany, L. ; Gromadzki, M. ; Herzog, L. J. ; Hiramatsu, D. ; Horne, Keith ; Hosseinzadeh, G. ; Howell, D. Andrew ; Ihanec, N. ; Inserra, C. ; Kankare, E. ; Maguire, K. ; McCully, C. ; Müller Bravo, T. E. ; Onori, F. ; Sollerman, J. ; Young, D. R.
in: Monthly Notices of the Royal Astronomical Society

Type: Journal article (Peer reviewed)

Status: Submitted     |    Year: 2020

 

Type IIn supernova light-curve properties measured from an untargeted survey samplE

Nyholm, A. ; Sollerman, J. ; Tartaglia, L. ; Taddia, F. ; Fremling, C. ; Blagorodnova, N. ; Filippenko, A. ; Gal-Yam, A. ; Howell, D. A. ; Karamehmetoglu, E. ; Kulkarni, S. R. ; Laher, R. ; Leloudas, G. ; Masci, F. ; Kasliwal, M. M. ; Mora, K. ; Moriya, T. J. ; Ofek, E. O. ; Papadogiannakis, S. ; Quimby, R. ; Rebbapragada, U. ; Schulze, S.
in: Astronomy and Astrophysics, vol: 637

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2020     |    DOI: https://doi.org/10.1051/0004-6361/201936097

2019
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Evidence for rapid disc formation and reprocessing in the X-ray bright tidal disruption event candidate AT 2018fyk

Wevers, T. ; Pasham, D. R. ; van Velzen, S. ; Leloudas, G. ; Schulze, S. ; Miller-Jones, J. C. A. ; Jonker, P. G. ; Gromadzki, M. ; Kankare, E. ; Hodgkin, S. T. ; Wyrzykowski, Ł. ; Kostrzewa-Rutkowska, Z. ; Moran, S. ; Berton, M. ; Maguire, K ; Onori, F. ; Mattila, S. ; Nicholl, M
in: Monthly Notices of the Royal Astronomical Society, vol: 488, issue: 4, pages: 4816-4830

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2019     |    DOI: https://doi.org/10.1093/mnras/stz1976

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Identification of strontium in the merger of two neutron stars

Watson, Darach ; Hansen, Camilla J. ; Selsing, Jonatan ; Koch, Andreas ; Malesani, Daniele Bjørn ; Andersen, Anja C. ; Fynbo, Johan P. U. ; Arcones, Almudena ; Bauswein, Andreas ; Covino, Stefano ; Grado, Aniello ; Heintz, Kasper E. ; Hunt, Leslie ; Kouveliotou, Chryssa ; Leloudas, Giorgos ; Levan, Andrew ; Mazzali, Paolo ; Pian, Elena
in: Nature, vol: 574, pages: 497–500

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2019     |    DOI: https://doi.org/10.1038/s41586-019-1676-3

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Signatures of a jet cocoon in early spectra of a supernova associated with a γ-ray burst

Izzo, L. ; de Ugarte Postigo, A. ; Maeda, K. ; Thöne, C. C. ; Kann, D. A. ; Della Valle, M. ; Sagues Carracedo, A. ; Michałowski, M. J. ; Schady, P. ; Schmidl, S. ; Selsing, J. ; Starling, R. L. C. ; Suzuki, A. ; Bensch, K. ; Bolmer, J. ; Campana, S. ; Cano, Z. ; Covino, S. ; Fynbo, J. P.U. ; Hartmann, D. H. ; Heintz, K. E. ; Hjorth, J. ; Japelj, J. ; Kamiński, K. ; Kaper, L. ; Kouveliotou, C. ; Krużyński, M. ; Kwiatkowski, T. ; Leloudas, G. ; Levan, A. J. ; Malesani, D. B. ; Michałowski, T. ; Piranomonte, S. ; Pugliese, G. ; Rossi, A. ; Sánchez-Ramírez, R. ; Schulze, S. ; Steeghs, D. ; Tanvir, N. R. ; Ulaczyk, K. ; Vergani, S. D. ; Wiersema, K.
in: Nature, vol: 565, issue: 7739, pages: 324-327

Type: Letter (Peer reviewed)

Status: Published     |    Year: 2019     |    DOI: https://doi.org/10.1038/s41586-018-0826-3