Research

[4] George Pappas, 2012 MNRAS, 422, 2581-2589, What can QPOs tell us about the structure of the corresponding compact objects?, (arXiv:1201.6071 [astro-ph.HE]),

[5] G Pappas and T A Apostolatos, 2012 Phys. Rev. Lett. 108, 231104 , "Revising the multipole moments of numerical spacetimes, and its consequences", (arXiv:1201.6067 [gr-qc]).

[6] G Pappas and T A Apostolatos, 2013 MNRAS, 429, 3007-–3024, "An all-purpose metric for the exterior of any kind of rotating neutron star", arXiv:1209.6148 [gr-qc], Additional material can be found at this URL.

[7] G Pappas and T A Apostolatos, NEB 15 conference proceedings (was supposed to appear in J. Phys.: Conf. Ser.), "Multipole Moments of numerical spacetimes", arXiv:1211.6299 [gr-qc] (there is an obvious typo in eq. 4).

[8] T. A. Apostolatos, G. Pappas, and K. Chatziioannou, NEB 15 conference proceedings (J.Phys.Conf.Ser. 453 (2013) 012001), "A Newtonian problem as an insightful tool for the behavior of gravitational-wave sources".

[9] G Pappas and TA Apostolatos, 2014 Phys. Rev. Lett. 112, 121101, "Effectively Universal Behavior of Rotating Neutron Stars in General Relativity Makes Them Even Simpler than Their Newtonian Counterparts", (arXiv:1311.5508 [gr-qc]). Editor's Suggestion. 

[10] Kent Yagi, Koutarou Kyutoku, George Pappas, Nicolas Yunes, and Theocharis A. Apostolatos, 2014 Phys. Rev. D 89, 124013, "Effective no-hair relations for neutron stars and quark stars: Relativistic results", (arXiv:1403.6243 [gr-qc]).

[11] Kent Yagi, Leo C. Stein, George Pappas, Nicolas Yunes, and Theocharis A. Apostolatos, 2014 Phys. Rev. D 90, 063010, "Why I-Love-Q: Explaining why universality emerges in compact objects", (arXiv:1406.7587 [gr-qc]).

[12] G Pappas and T P Sotiriou, 2015 Phys. Rev. D 91, 044011, "Multipole moments in scalar-tensor theory of gravity" (arXiv:1412.3494 [gr-qc]).

[13] Kostas Glampedakis, George Pappas, Hector O. Silva, Emanuele Berti, 2015 Phys. Rev. D 92, 024056, "Post-Tolman-Oppenheimer-Volkoff formalism for relativistic stars", (arXiv:1504.02455 [gr-qc]).

[14] George Pappas, Thomas P. Sotiriou, "Geodesic properties in terms of multipole moments in scalar-tensor theories of gravity", 2015 MNRAS 453, 2862-2876 (arXiv:1505.02882 [gr-qc]).

[15] George Pappas, "Unified description of astrophysical properties of neutron stars independent of the equation of state", 2015 MNRAS 454, 4066-4084 (arXiv:1506.07225 [astro-ph.HE]).

[16] David Tsang and George Pappas, "Self-Trapping of Diskoseismic Corrugation Modes in Neutron Star Spacetimes", 2016 ApJ, 818, L11 (arXiv:1511.01948 [astro-ph.HE]).

[17] Kostas Glampedakis, George Pappas, Hector O. Silva, Emanuele Berti, 2016 Phys. Rev. D 94, 044030, "Astrophysical applications of the post-Tolman-Oppenheimer-Volkoff formalism" (arXiv:1606.05106 [gr-qc]). Editor's Suggestion. 

[18] George Pappas, 2017 MNRAS, 466, 4381-4394, "An accurate metric for the spacetime around rotating neutron stars" (arXiv:1610.05370 [gr-qc]).

[19] Kostas Glampedakis, George Pappas, Hector O. Silva, Emanuele Berti, 2017 Phys. Rev. D 96, 064054, "Post-Kerr black hole spectroscopy" (arXiv:1706.07658 [gr-qc]).

[20] Daniela D. Doneva, George Pappas, "Universal Relations and Alternative Gravity Theories", arXiv:1709.08046 [gr-qc]. Chapter 13 of the book "The Physics and Astrophysics of Neutron Stars", Editors: Rezzolla, L., Pizzochero, P., Jones, D.I., Rea, N., Vidaña, I., Springer (2018), NewCompStar COST Action 1304.

[21] Kostas Glampedakis, George Pappas, 2018 Phys. Rev. D 97, 041502(R), "How well can ultracompact bodies imitate black hole ringdowns?" (arXiv:1710.02136 [gr-qc]).

[22] George Pappas, Kostas Glampedakis, "On the connection of spacetime separability and spherical photon orbits", arXiv:1806.04091 [gr-qc].

[23] Kostas Glampedakis, George Pappas, 2019 Phys. Rev. D 99, 124041, "The modification of photon trapping orbits as a diagnostic of non-Kerr spacetimes", (arXiv:1806.09333 [gr-qc]).

[24] George Pappas, Daniela D. Doneva, Thomas P. Sotiriou, Stoytcho S. Yazadjiev, Kostas D. Kokkotas, 2019 Phys. Rev. D 99, 104014, "Multipole moments and universal relations for scalarized neutron stars" (arXiv:1812.01117 [gr-qc]).

[25] Hajime Sotani, Hector O. Silva, George Pappas, 2019 Phys. Rev. D 100, 043006, "Finite size effects of slowly-rotating neutron stars light curves", (arXiv:1905.07668 [astro-ph]).

[26] Andrea Maselli, George Pappas, Paolo Pani, Leonardo Gualtieri, Sara Motta, Valeria Ferrari, Luigi Stella, 2020 ApJ, 899, 139, "Can we constrain the neutron-star equation of state from QPO observations?", (arXiv:1905.05616 [astro-ph]).

[27] Hector O. Silva, George Pappas, Nicolás Yunes and Kent Yagi, 2021 Phys. Rev. D 103, 063038, "The surface of rapidly-rotating neutron stars: implications to neutron star parameter estimation", (arXiv:2008.05565 [astro-ph]).

[28] Kostas Glampedakis, and George Pappas, 2021 Phys.Rev.D 104, L081503, "Can supermassive black hole shadows test the Kerr metric?", (arXiv:2102.13573 [gr-qc]).

[29] Paraskevi Nousi, Styliani-Christina Fragkouli, Nikolaos Passalis, Panagiotis Iosif, Theocharis Apostolatos, George Pappas, Nikolaos Stergioulas, Anastasios Tefas, 2022 Neurocomputing 491, 67–77, "Autoencoder-driven Spiral Representation Learning for Gravitational Wave Surrogate Modelling", (arXiv:2107.04312 [cs.LG]).

[30] Konstantinos Kostaros, and George Pappas, 2022 Class. Quantum Grav. 39 134001, Focus Issue on the Impact of EHT Observations for General Relativity, "Chaotic photon orbits and shadows of a non-Kerr object described by the Hartle-Thorne spacetime", (arXiv:2111.09367 [gr-qc]).

[31] Motta, S.E., Belloni, T., Stella, L., Pappas, G., Casares, J., A., Muñoz-Darias, T., Torres, M.A.P., Yanes-Rizo, I.V., 2022 MNRAS, 517, 1469-1475,  "Black hole mass and spin measurements through the Relativistic Precession Model: XTE J1859+226", (arXiv:2209.10376 [astro-ph.HE]).

[32] Kostas Glampedakis, and George Pappas, 2023 Phys.Rev.D 107, 064001, "Is a black hole shadow a reliable test of the no-hair theorem?", (2302.06140 [gr-qc]).

[33] Grigorios Papigkiotis, and George Pappas, 2023 Phys.Rev.D 107, 103050, "Universal Relations for rapidly rotating neutron stars using supervised machine-learning techniques", (2303.04273 [gr-qc]).

[34] Konstantinos Kostaros, Padelis Papadopoulos, George Pappas, 2024 Phys.Rev.D 110, 024001, "Fractal signatures of non-Kerr spacetimes in the shadow of light-ring bifurcations", (2405.09653 [gr-qc]).

[35] George Pappas, Ippocratis D Saltas, Laurent Eyer, 2025 Phys.Rev.D 112, 063011, "Modelling Gaia photometry signals of dark halos" ( 2503.23868 [astro-ph.CO]).

[36] Konstantinos Kostaros, George Pappas, Padelis Papadopoulos, Wing-Fai Thi, "An Einstein ring fingerprint around SMBHs illuminated by BLR spectral lines",  arXiv: 2509.08690 [gr-qc]. 

[37] Konstantinos Kostaros, Padelis Papadopoulos, Wing-Fai Thi, George Pappas, "SMBH shadows: gravity fingerprints revealed by spectral line background radiation",  arXiv: 2509.08728 [gr-qc]. 

Other work and talks:

The undergrad, masters, and PhD theses presented here are all in Greek. The talks presented are in English and are related to my research work. The work presented in this section that is published in conference proceedings is not refereed.  

• • Προπτυχιακή Διπλωματική εργασία (Bachelor thesis):

  • Σχετικιστική βαρυτική κατάρρευση σφαιρικά συμμετρικών αστέρων,

  • Pothitakis, G.; Preka-Papadema, P.; Petropoulos, B.; Pappas, G.; Polygiannakis, J., "Study on the occurrence rate of Ha solar flares in order to detect the possible existence of North-South and East-West asymmetries during the time interval 1994-2000", 5th Hellenic Astronomical Conference, held 20-22 September, 2001 in Crete, Greece. Online at http://www.astro.auth.gr/elaset/helasmtg/2001/proceedings.htm, p.38.1 (.ps),

  • Polygiannakis, J., Preka-Papadema, P., Petropoulos, B., Pothitakis, G., Moussas, X., Pappas, G., Hillaris, A., "Ephemeral periodicities in the solar activity", In: SOLMAG 2002. Proceedings of the Magnetic Coupling of the Solar Atmosphere Euroconference and IAU Colloquium 188, 11 - 15 June 2002, Santorini, Greece. Ed. H. Sawaya-Lacoste. ESA SP-505. Noordwijk, Netherlands: ESA Publications Division, ISBN 92-9092-815-8, 2002, p. 537 - 540,

  • Μεταπτυχιακή Διπλωματική εργασία (Master thesis):

  • Μέθοδοι παραγωγής λύσεων των εξισώσεων πεδίου του Einstein (Methods for generating solutions of the Einstein field equations),

  • Talk given at the Theoretical Astrophysics Section in Tuebingen during a visit in November 2010. The topic of the talk was:

  • The spacetime exterior to rotating neutron stars and the possibility of constraining the equation of state from QPOs,

  • Talk given at the conference, NEB 15 - Recent Developments in Gravity, titled: "Revising the Multipole Moments of numerical spacetimes".

  • Παρουσίαση στα πλαίσια της ολοκλήρωσης της διδακτορικής διατριβής με τίτλο, "Εφαρμογές στη γενική θεωρία της σχετικότητας: ο χώρος γύρω από συμπαγή αντικείμενα".

  • (Τυπογραφικά: σελ. 4/47 $$M_4=\left( a^4 - (3a^2 -2ab + b^2)k + k^2 -\frac{1}{7}kM^2\right) M $$,

• • σελ. 8/47 $$ \rho^2 \equiv (g_{t\phi})^2-g_{tt}g_{\phi\phi} $$.)

• Διδακτορική Διατριβή (PhD thesis):

  • Σύνδεσμος προς την Ψηφιακή βιβλιοθήκη "Γκρίζας Βιβλιογραφίας" για την εργασία (και σύνδεσμος προς το Εθνικό Αρχείο Διδακτορικών Διατριβών),

  • Τίτλος: Εφαρμογές στη γενική θεωρία της Σχετικότητας: ο χώρος γύρω από συμπαγή αστροφυσικά αντικείμενα.

  • Title: Applications of the theory of General Relativity: the space-time around compact objects. (in Greek)

• • Εξίσωση (1.2.46) σελ. 28, η έκφραση πρέπει να είναι

• • Παράρτημα Ζ: Σελ. 146 η εξίσωση (Ζ'.0.9) θα έπρεπε να είναι: $$ -g_{\rho\rho}\left(\frac{d\rho}{d\tau}\right)^2 -g_{zz}\left(\frac{dz}{d\tau}\right)^2=1-\frac{\tilde{E}^2g_{\phi\phi}+2\tilde{E}\tilde{L} g_{t\phi}+\tilde{L}^2 g_{tt}}{(g_{t\phi})^2-g_{tt}g_{\phi\phi}}=V_{eff}.$$

• Talk given at the SFB/TR7 meeting with title: "Revising the Multipole Moments of numerical spacetimes".

• A general talk given for the Theoretical Astrophysics and Computational Physics Seminar with title: "Some topics on compact objects and the spacetime around them".

  • Equation (15) should read: $$ -g_{\rho\rho}\left(\frac{d\rho}{d\tau}\right)^2 -g_{zz}\left(\frac{dz}{d\tau}\right)^2= 1-\frac{\tilde{E}^2g_{\phi\phi}+2\tilde{E}\tilde{L} g_{t\phi}+\tilde{L}^2 g_{tt}}{(g_{t\phi})^2-g_{tt}g_{\phi\phi}}=V_{eff}.$$

• Talk given at the Theoretical Astrophysics Section in Tuebingen, in July 2014. The same talk was also given in August for the NESTAR video seminar titled: "Universal behaviour of neutron star multipole moments (I-Love-Q relations)".

• Talk given at the conference, NEB 16 - Recent Developments in Gravity (Mykonos 2014), titled: "Why I-Love-Q?".

• Invited colloquium talk at the Physics and Astronomy department at the University of Mississippi (November 2014), titled: "Neutron Stars: Global Properties and Properties of Orbits Around Them".

• Invited talk for the Gravity seminar at STAG Research Centre, University of Southampton, UK, December 11th 2014. Talk title: "Doing astrophysics around neutron stars: Their global properties and the properties of orbits around them".

• Media attention (August 2015 Issue of PhysicsWorld) regarding our work on "I-Love-Q" and the three-hair relations for neutron stars. 

• Brief presentation of some of my work at the relativity group meeting at TAPIR in Caltech, during my visit (November 2015). 

• Our recent paper on "Astrophysical applications of the post-Tolman-Oppenheimer-Volkoff formalism" has been highlighted as a Physical Review D  Editor's Suggestion 

• Talk given at the conference NEB-17 - Recent Developments in Gravity (Mykonos 2016, September 19-22), titled: "The spacetime around compact objects and astrophysical observables" 

• A talk, where I presented my work on the properties of neutron star spacetimes, in the context of the CENTRA weekly seminar (27/10/2016). The talk title was: "The spacetime around neutron stars and astrophysical observables". 

• I was also invited to give a talk, similar to the previous talk at CENTRA, at the Gr@v group seminar at the University of Aveiro (30/11/2016). 

• At the end of February 2017 (2/27/17-3/2/17), E. Berti organised a workshop at OleMiss on Strong Gravity and Binary Dynamics with Gravitational Wave Observations, where I was invited to participate in the "Tests of the Kerr nature of black holes and new physics" discussion panel with colleagues L. Stein, R. Brito, C. Herdeiro, and K. Yagi.

• On the 25th of March 2017 CENTRA had it's second meeting at Reitoria da Universidade de Lisboa, where all CENTRA members briefly presented their work.

• On May 29 2017, I gave a seminar at the University of Lisboa, Campo Grande, at Instituto de Astrofísica e Ciências do Espaço (IA), on the topic of the spacetime around neutron stars. This talk was a small variation on the theme of neutron star spacetimes and properties.  

• eXtreme Matter meets eXtreme Gravity workshop at the Montana State University, held from the 17th to the 19th of August, 2017 in Bozeman, Montana.

• On October 23 2017, I gave a seminar at CEICO, in Prague, Czech Republic, with the title, "Neutron stars as matter and gravity laboratories". 

• I was invited to give a talk at the workshop, Modern Aspects of Gravity and Cosmology, that took place between 8-9 November 2017 at LPT, Orsay, France. The title of the talk was, "Neutron stars as gravity laboratories".

• COST GWverse Conference, Malta 22-25 January 2018, University of Malta, Valletta Campus.

• On the 2nd of February 2018, I was invited to give a talk at DAMTP in Cambridge on, "Neutron Stars as gravity laboratories", in the context of DAMTP Friday GR Seminar.

• Neutron stars in Lisbon workshop, 12-13 April 2018, Lisbon, Portugal. I was invited to lead the first day round table discussion on multimessenger astrophysics from BNS mergers (and GW170817 specifically).

• Numerical Relativity beyond General Relativity workshop, 03-09 June 2018, Benasque, Spain. Talk title: "Stationary solutions in theories beyond GR".

• First Congress of Greek Mathematicians, (FCGM-2018), June 25 - 30, 2018, Athens, Greece. 

• NEB 18 - RECENT DEVELOPMENTS IN GRAVITY AND RELATIVITY, 20-23 September 2018, Rhodes. Talk title: "Testing the Kerr hypothesis with QNMs and ringdowns".

• On October 11th, 2018, during my visit to NAOJ (NAOJ Visiting Fellow), I gave a talk on "Testing the Kerr hypothesis with QNMs and ringdowns", for the Division of Theoretical Astronomy. 

• November 12-14, 2018, Fundamental Physics with LISA workshop at the GGI in Florence, Italy.

• 16-18 January, 2019, Tests of Gravity workshop of the gwverse COST action, in Athens, Greece. Co-organised with Thomas Sotiriou, Harris Apostolatos, and Leo Stein. This workshop is part of the Gravity Data Group initiation of the EU COST action "Gravitational Waves, black holes, and fundamental physics". The overarching goal of the initiative is to collect and comprehensively present all constraints on gravitation.

• 21-24 January, 2019, annual gwverse COST action meeting, in Athens, Greece. Gravitational Waves, Black Holes and Fundamental Physics.

• 22-26 April, 2019, annual PHAROS meeting, in Barcelona, Spain.  

• May 29 2019, Public talk at the Observatory at AUTh on the 100-year anniversary of the 1919 solar eclipse and the measurement of the relativistic deflection of light by the Sun. Talk title: “Tests of General Relativity and the 1919 eclipse expedition."

• June 26 to July 7, 2019, STSM mission for the GWVerse COST action to the University of Mississippi in Oxford MS, USA, to work with prof. Leo Stein on the GDG project. During my visit I gave a talk on, "Testing the Kerr hypothesis" (01/07/2019). 

• 16-27 September 2019, 10th Aegean Summer School in Syros Island, Greece. Talk title: Testing the Kerr hypothesis.

• 13-15 November 2019, Neutron Stars in the GW era in Tuebingen, Germany. Talk title: Testing GR with neutron stars.

• 4-7 December 2019, Multimessengers, compact objects, and fundamental physics in Prague, Czech Republic. Talk title: Neutron stars as gravity laboratories

==Covid-19 break==

• June 4, 2021, Cosmoseminar,  LPT Orsay, France. Talk Title: "Using photon rings and spheres to distinguish between KErr and non-Kerr spacetimes".

• November 10, 2021, FORTH Institute of Astrophysics Colloquium. Talk title: "Using light-rings and photon-spheres to tell apart Kerr from non-Kerr spacetimes".

• Physics Department at AUTh, March 26th 2022, Thessaloniki, Greece. Invited talk at the workshop organised by the PATH student initiative. Talk Title: “The shadow of a Black Hole“

• July 27 2022, 4th Summer School of Hel.A.S., July 25-27 2022 , Athens, Greece. Invited speaker. Lecture Title: “The central supermassive Black Hole of the Milky Way“

• April 29 2023, Student organised workshop on physics. Lecture Title: "About Relativity".

• May 7, 2024, Cosmology and Astrophysics in the Gravitational Wave Astronomy Era Conference, 6-10 May 2024. Central Library of Aristotle University, Thessaloniki, Greece. Invited speaker. Talk title: “Fractal shadows from non-Kerr compact objects”.

• June 17, 2025, Black Holes, Neutron Stars, and Gravitational Waves @ Black Sea Conference, 16-20 June 2025, Varna, Bulgaria. Invited speaker. Talk title: "Measuring the shadows of Kerr and non-Kerr compact objects".

All of my papers from ADS.

My Gravity papers from ADS.

Talks in Greek:

The talks presented here are in Greek and were mostly given at the University of Athens, Greece, in the context of the Astro Fridays Meetings. Therefore these talks are more general in nature and not necessarily related to my research.  

• • Εργασία στα πλαίσια του μεταπτυχιακού μαθήματος "Δομή και εξέλιξη των Αστέρων": Παλλόμενοι μεταβλητοί αστέρες και ακτινικές ταλαντώσεις,

  • Παρουσίαση στα πλαίσια των συναντήσεων της Ομάδας Θεωρητικής Αστροφυσικής: Ακουστικό ανάλογο Μελανών Οπών,

    • Βιβλιογραφία:

    • Experimental Black-Hole Evaporation? (PRL, 46, 1351)

    • Sonic analogue of black holes and the effects of high frequencies on black hole evaporation (Phys. Rev. D, 51, 2827)

    • Acoustic black holes: horizons, ergospheres and Hawking radiation (gr-qc/9712010)

    • Trans-Planckian redshifts and the substance of the space-time river (hep-th/0001085)

    • Causal structure of acoustic spacetimes (gr-qc/0408022)

    • Vortex analogue for the equatorial geometry of the Kerr black hole (gr-qc/0409014)

    • The river model of black holes (gr-qc/0411060)

    • The disinformation problem of black holes (gr-qc/0504037, gr-qc/0504038)

    • Scientific American: An ECHO of Black Holes [PHYSICS]

  • Παρουσίαση στα πλαίσια των συναντήσεων της Ομάδας Θεωρητικής Αστροφυσικής: "Κύκνος Χ-1: Η πρώτη Μαύρη Τρύπα, μέτρηση της μάζας και της παραμέτρου περιστροφής του".

    • arXiv:1106.3688v2 [astro-ph.HE], arXiv:1106.3689v2 [astro-ph.HE], arXiv:1106.3690v2 [astro-ph.HE]

    • (αρχείο pdf)(αρχείο .pps)(σελίδα της παρουσίασης (internet explorer))

    • **Διόρθωση στις διαφάνειες στη σελ. 15 στη σχέση για το φάσμα του δίσκου:

    • $$F_{\nu}=\frac{4\pi h \nu^3}{c^2}\int_{\rho_{in}}^{\infty}\frac{\rho d\rho}{e^{h\nu/kT(\rho)}-1}\left(\frac{1}{D}\right)^2\cos i$$

• • Παρουσίαση στα πλαίσια των συναντήσεων της Ομάδας Θεωρητικής αστροφυσικής:

    • "Νετρίνα", (Γιώργος Παύλου, .pdf)

    • "Τρέχουν τα νετρίνα πιο γρίγορα από το φως;;;, (Γιώργος Παππάς, .pps)

      • NEUTRINO MASS, MIXING, AND OSCILLATIONS

      • arXiv:1109.4897v2, v1 [hep-ex], "Measurement of the neutrino velocity with the OPERA detector in the CNGS beam",

      • arXiv.org Search Results: OPERA.

      • ---Update (23/02/2012): CERN issues statement about OPERA neutrino result - Physics Today News Picks

      • ---Update (16/3/2012): ICARUS experiment at Gran Sasso laboratory reports measurement of neutrino time of flight consistent with the speed of light

• • • • CERN Press release

      • UPDATE 8 June 2012

      • Neutrinos sent from CERN to Gran Sasso respect the cosmic speed limit

      • At the 25th International Conference on Neutrino Physics and Astrophysics in Kyoto today, CERN Research Director Sergio Bertolucci presented results on the time of flight of neutrinos from CERN to the INFN Gran Sasso Laboratory on behalf of four experiments situated at Gran Sasso. The four, Borexino, ICARUS, LVD and OPERA all measure a neutrino time of flight consistent with the speed of light. This is at odds with a measurement that the OPERA collaboration put up for scrutiny last September, indicating that the original OPERA measurement can be attributed to a faulty element of the experiment’s fibre optic timing system.

        • “Although this result isn’t as exciting as some would have liked,” said Bertolucci, “it is what we all expected deep down. The story captured the public imagination, and has given people the opportunity to see the scientific method in action – an unexpected result was put up for scrutiny, thoroughly investigated and resolved in part thanks to collaboration between normally competing experiments. That’s how science moves forward.”

• • • • OPERA: What Went Wrong.

• • Διάλεξη με θέμα την εξέλιξη των αστέρων μεγάλης μάζας. Η διάλεξη πραγματοποιήθηκε στο τμήμα Φυσικής του πανεπιστημίου Πατρών στις 2 Μάη 2017 και απευθυνόταν σε προπτυχιακούς φοιτητές.  

• Διάλεξη στους φοιτητές του Φυσικού του ΑΠΘ με θέμα "Μια ματιά στη θεωρία της Γενικής Σχετικότητας", με στόχο την εισαγωγή στις βασικές ιδέες της θεωρίας (8/4/2019). 

• Διάλεξη σε ημερίδα που οργάνωσαν οι φοιτητές του Φυσικού του ΑΠΘ με θέμα "Περί Σχετικότητας", με στόχο την εισαγωγή στις βασικές ιδέες της θεωρίας (29/4/2023).

Teaching:

These are the courses I am currently teaching or have taught in the past. 

(ΜΥΠ736) Αστροφυσική για το Μεταπτυχιακό Υπολογιστικής Φυσικής του Τμήματος Φυσικής του ΑΠΘ (Astrophysics).

(ΓΘΕ203) Μηχανική των Ρευστών για το προπτυχιακό του Τμήματος Φυσικής του ΑΠΘ (Fluid Mechanics).

(ΑΑΕ201) Αστροφυσική για το προπτυχιακό του Τμήματος Φυσικής του ΑΠΘ (Astrophysics)

(SPE-C5) Σπουδές στη Γενική Σχετικότητα για το Μεταπτυχιακό Υποατομικής Φυσικής του τμήματος Φυσικής του ΑΠΘ (General Relativity).

(ΓΘΕ211) Εισαγωγή στη Φυσική των Ιονισμένων Αερίων για το προπτυχιακό του Τμήματος Φυσικής του ΑΠΘ (Plasma Physics).

(ΑΑΥ201) Αστρονομία και Αστροφυσική, για το προπτυχιακό του τμήματος Φυσικής του ΑΠΘ (Introduction to Astronomy and Astrophysics)

Theses Supervision:

• Undergrad:
  1. Chaotic photon orbits and fractal Shadows in the Hartle-Thorne spacetime, Κώσταρος Κωνσταντίνος (2021)
  2. Hydrodynamic analogues of black holes, Μαγγαλούδη Γλυκερία (2021)

• Postgrad:
  1. Generic Orbits around rotating Black Holes and non-Kerr compact objects with Gravitational Wave applications for LISA, Σουβαϊτζής Λάζαρος (2021)
  2. Exploring universal relations for rapidly rotating neutron stars using machine learning techniques, Παπιγκιώτης Γρηγόριος (2022)

Trivia:

• • My record on the Mathematics Genealogy Project and the record of my supervisor, Theocharis A. Apostolatos  

• My MathSciNet profile page

  • My record on the Astronomy Genealogy Project (AstroGen)