Abbas Askar
Researcher
I am currently a postdoctoral researcher at Lund Observatory. Broadly, my research is centered on black holes, formation of compact object binaries, gravitational wave sources, and the dynamical evolution of dense stellar systems like globular clusters and nuclear stellar clusters.
Publications
Displaying of publications. Sorted by year, then title.
Astrophysics with the Laser Interferometer Space Antenna
Pau Amaro-Seoane, Abbas Askar, Ross Church, Melvyn B. Davies, Alejandro Vigna-Gómez
(2023) Living Reviews in Relativity, 26
Journal article reviewMOCCA-Survey Database: extra galactic globular clusters – III. The population of black holes in Milky Way and Andromeda-like galaxies
A. Leveque, M. Giersz, Abbas Askar, M. Arca-Sedda, A. Olejak
(2023) Monthly Notices of the Royal Astronomical Society, 520 p.2593-2610
Journal articleMOCCA: dynamics and evolution of single and binary stars of multiple stellar populations in tidally filling and underfilling globular star clusters
Arkadiusz Hypki, Mirek Giersz, Jongsuk Hong, Agostino Leveque, Abbas Askar, et al.
(2022) Monthly Notices of the Royal Astronomical Society, 517 p.4768-4787
Journal articleExploring compact binary populations with the Einstein Telescope
Neha Singh, Tomasz Bulik, Krzysztof Belczynski, Abbas Askar
(2022) Astronomy & Astrophysics, 667
Journal articleInfluence of tidal dissipation on outcomes of binary–single encounters between stars and black holes in stellar clusters
Lucas Hellström, Abbas Askar, Alessandro A. Trani, Mirek Giersz, Ross P. Church, et al.
(2022) Monthly Notices of the Royal Astronomical Society, 517 p.1695-1708
Journal articleMOCCA-survey data base: extra galactic globular clusters – II. Milky Way and Andromeda
A. Leveque, M. Giersz, M Arca-sedda, Abbas Askar
(2022) Monthly Notices of the Royal Astronomical Society, 514 p.5751-5766
Journal articleMOCCA-SURVEY data base II – Properties of intermediate mass black holes escaping from star clusters
Konrad Maliszewski, Mirek Giersz, Dorota Gondek-Rosinska, Abbas Askar, Arkadiusz Hypki
(2022) Monthly Notices of the Royal Astronomical Society, 514 p.5879-5889
Journal articlePreparing the next gravitational million-body simulations: evolution of single and binary stars in nbody6++gpu , mocca , and mcluster
A W H Kamlah, A Leveque, R Spurzem, M Arca sedda, A Askar, et al.
(2022) Monthly Notices of the Royal Astronomical Society, 511 p.4060-4089
Journal articleFormation of supermassive black holes in galactic nuclei – II. Retention and growth of seed intermediate-mass black holes
Abbas Askar, Melvyn B Davies, Ross Church
(2022) Monthly Notices of the Royal Astronomical Society, 511 p.2631-2647
Journal articleUsing binaries in Globular Clusters to catch sight of Intermediate-Mass Black Holes
Francisco I Aros, Anna C Sippel, Alessandra Mastrobuono-battisti, Paolo Bianchini, Abbas Askar, et al.
(2021) Monthly Notices of the Royal Astronomical Society, 508 p.4385-4398
Journal articleFormation of supermassive black holes in galactic nuclei – I. Delivering seed intermediate-mass black holes in massive stellar clusters
Abbas Askar, Melvyn B. Davies, Ross P. Church
(2021) Monthly Notices of the Royal Astronomical Society, 502 p.2682-2700
Journal articlemocca-survey Database I: Binary black hole mergers from globular clusters with intermediate mass black holes
Jongsuk Hong, Abbas Askar, Mirek Giersz, Arkadiusz Hypki, Suk-jin Yoon
(2020) Monthly Notices of the Royal Astronomical Society, 498 p.4287-4294
Journal articleEvolutionary roads leading to low effective spins, high black hole masses, and O1/O2 rates for LIGO/Virgo binary black holes
K. Belczynski, J. Klencki, C. E. Fields, A. Olejak, E. Berti, et al.
(2020) Astronomy and Astrophysics, 636
Journal articleDynamical modelling of globular clusters: challenges for the robust determination of IMBH candidates
Francisco I Aros, Anna C Sippel, Alessandra Mastrobuono-battisti, Abbas Askar, Paolo Bianchini, et al.
(2020) Monthly Notices of the Royal Astronomical Society, 499 p.4646-4665
Journal articleSingle-single gravitational-wave captures in globular clusters : Eccentric deci-Hertz sources observable by DECIGO and Tian-Qin
Johan Samsing, Daniel J. D'Orazio, Kyle Kremer, Carl L. Rodriguez, Abbas Askar
(2020) Physical Review D, 101
Journal articleA stellar census in globular clusters with MUSE: Binaries in NGC 3201
B. Giesers, S. Kamann, S. Dreizler, T.-o. Husser, A. Askar, et al.
(2019) Astronomy & Astrophysics, 632
Journal articleMOCCA Survey Database– i. Dissolution of tidally filling star clusters harbouring black hole subsystems
M Giersz, A Askar, L Wang, A Hypki, A Leveque, et al.
(2019) Monthly Notices of the Royal Astronomical Society, 487 p.2412-2423
Journal articleBlack holes, gravitational waves and fundamental physics: A roadmap
Leor Barack, Abbas Askar, Miguel Zilhão
(2019) Classical and Quantum Gravity, 36
Journal articleFinding black holes with black boxes – using machine learning to identify globular clusters with black hole subsystems
Ammar Askar, Abbas Askar, Mario Pasquato, Mirek Giersz
(2019) Monthly Notices of the Royal Astronomical Society, 485 p.5345-5362
Journal articleMOCCA-SURVEY database I. Accreting white dwarf binary systems in globular clusters - IV. Cataclysmic variables - properties of bright and faint populations
Diogo Belloni, Mirek Giersz, Liliana E. Rivera Sandoval, Abbas Askar, Paweł Ciecielag
(2019) Monthly Notices of the Royal Astronomical Society, 483 p.315-331
Journal articleAre most Cataclysmic Variables in Globular Clusters dynamically formed
Diogo Belloni, Mirek Giersz, Liliana E.Rivera Sandoval, Abbas Askar, Pawel Ciecielag
(2019) Proceedings of the International Astronomical Union, 14 p.404-407
Journal articleBEANS-distributed data analysis for numerical simulations
Arkadiusz Hypki, Mirek Giersz, Abbas Askar, Diogo Belloni, Agostino Leveque
(2019) Proceedings of the International Astronomical Union, 14 p.460-463
Journal articleStellar-mass Black Holes in Globular Clusters : Dynamical consequences and observational signatures
Abbas Askar, Mirek Giersz, Manuel Arca Sedda, Ammar Askar, Mario Pasquato, et al.
(2019) Proceedings of the International Astronomical Union, 14 p.395-399
Journal articleMOCCA-SURVEY Database I : Dissolution of tidally filling star clusters harboring black hole subsystem
Mirek Giersz, Abbas Askar, Long Wang, Arkadiusz Hypki, Agostino Leveque, et al.
(2019) Proceedings of the International Astronomical Union, 14 p.438-441
Journal articleThe ecology of the galactic centre : Nuclear stellar clusters and supermassive black holes
Melvyn B. Davies, Abbas Askar, Ross P. Church
(2019) Proceedings of the International Astronomical Union, 14 p.80-83
Journal articleMOCCA-SURVEY Database I: Assessing GW kick retention fractions for BH-BH mergers in globular clusters
Jakub Morawski, M Giersz, A Askar, K Belczynski
(2018) Monthly Notices of the Royal Astronomical Society, 481 p.2168-2179
Journal articleMOCCA-Survey Database I. Unravelling black hole subsystems in globular clusters
Manuel Arca Sedda, Abbas Askar, Mirek Giersz
(2018) Monthly Notices of the Royal Astronomical Society, 479 p.4652-4664
Journal articleThe origin of the first neutron star textendash neutron star merger
K. Belczynski, A. Askar, M. Arca-Sedda, M. Chruslinska, M. Donnari, et al.
(2018) Astronomy & Astrophysics, 615 p.91-91
Journal articleMOCCA-Survey Database I: Galactic globular clusters harbouring a black hole subsystem
Abbas Askar, Manuel Arca Sedda, Mirek Giersz
(2018) Monthly Notices of the Royal Astronomical Society, 478 p.1844-1854
Journal articleMOCCA-SURVEY Database. I. Eccentric Black Hole Mergers during Binary-Single Interactions in Globular Clusters
Johan Samsing, Abbas Askar, Mirek Giersz
(2018) The Astrophysical Journal, 855 p.124-124
Journal articleCOCOA Code for Creating Mock Observations of Star Cluster Models
Abbas Askar, Mirek Giersz, Wojciech Pych, Emanuele Dalessandro
(2018) Monthly Notices of the Royal Astronomical Society
Journal articleBinary black hole mergers from globular clusters : The impact of globular cluster properties
Jongsuk Hong, Enrico Vesperini, Abbas Askar, Mirek Giersz, Magdalena Szkudlarek, et al.
(2018) Monthly Notices of the Royal Astronomical Society, 480 p.5645-5656
Journal articleOn the initial binary population for star cluster simulations
Diogo Belloni, Abbas Askar, Mirek Giersz, Pavel Kroupa, Helio J. Rocha-Pinto
(2017) Monthly Notices of the Royal Astronomical Society, 471 p.2812-2828
Journal articleThe dynamical origin of multiple populations in intermediate-age clusters in the Magellanic Clouds
Jongsuk Hong, Richard de Grijs, Abbas Askar, Peter Berczik, Chengyuan Li, et al.
(2017) Monthly Notices of the Royal Astronomical Society, 472 p.67-77
Journal articleMOCCA-SURVEY database I. Accreting white dwarf binary systems in globular clusters - III. Cataclysmic variables - implications of model assumptions
D. Belloni, M. Zorotovic, Matthias R. Schreiber, Nathan W. C. Leigh, M. Giersz, et al.
(2017) Monthly Notices of the Royal Astronomical Society, 468 p.2429-2446
Journal articleProspects for detection of intermediate-mass black holes in globular clusters using integrated-light spectroscopy
R. de Vita, M. Trenti, P. Bianchini, A. Askar, M. Giersz, et al.
(2017) Monthly Notices of the Royal Astronomical Society, 467 p.4057-4066
Journal articleMOCCA-SURVEY Database I: Is NGC 6535 a dark star cluster harbouring an IMBH?
Abbas Askar, Paolo Bianchini, Ruggero de Vita, Mirek Giersz, Arkadiusz Hypki, et al.
(2016) Monthly Notices of the Royal Astronomical Society, 464 p.3090-3100
Journal articleMOCCA-SURVEY database I. Accreting white dwarf binary systems in globular clusters II. Cataclysmic variables - progenitors and population at birth
Diogo Belloni, Mirek Giersz, Helio J. Rocha-Pinto, Nathan W. C. Leigh, Abbas Askar
(2016) Monthly Notices of the Royal Astronomical Society, 464 p.4077-4095
Journal articleMOCCA-SURVEY Database - I. Coalescing binary black holes originating from globular clusters
Abbas Askar, Magdalena Szkudlarek, Dorota Gondek-Rosiska, Mirek Giersz, Tomasz Bulik
(2016) Monthly Notices of the Royal Astronomical Society: Letters, 464 p.36-40
Journal articleMOCCA-SURVEY database I. Accreting white dwarf binary systems in globular clusters I. Cataclysmic variables textendash present-day population
Diogo Belloni, Mirek Giersz, Abbas Askar, Nathan Leigh, Arkadiusz Hypki
(2016) Monthly Notices of the Royal Astronomical Society, 462 p.2950-2969
Journal articleThe dragon simulations: globular cluster evolution with a million stars
Long Wang, Rainer Spurzem, Sverre Aarseth, Mirek Giersz, Abbas Askar, et al.
(2016) Monthly Notices of the Royal Astronomical Society, 458 p.1450-1465
Journal articleMOCCA code for star cluster simulation: comparison with optical observations using COCOA
A. Askar, M. Giersz, W. Pych, A. Olech, A. Hypki
(2016) IAU Symposium, 312 p.262-263
Conference paperCataclysmic variables in globular clusters . First results on the analysis of the MOCCA simulations database
D. Belloni, M. Giersz, A. Askar, A. Hypki
(2016) Memorie della Societa Astronomica Italiana - Journal of the Italian Astronomical Society, 87 p.551-551
Journal articleFormation mechanisms of IMBH in globular clusters
M. Giersz, N. Leigh, A. Hypki, A. Askar, N. Lützgendorf
(2016) Memorie della Societa Astronomica Italiana - Journal of the Italian Astronomical Society, 87 p.555-558
Journal articleMOCCA code for star cluster simulations - IV. A new scenario for intermediate mass black hole formation in globular clusters
Mirek Giersz, Nathan Leigh, Arkadiusz Hypki, Nora Lützgendorf, Abbas Askar
(2015) Monthly Notices of the Royal Astronomical Society, 454 p.3150-3165
Journal articleMonte Carlo modeling of globular star clusters: many primordial binaries and IMBH formation
Mirek Giersz, Nathan Leigh, Michael Marks, Arkadiusz Hypki, Abbas Askar
(2014) Proceedings of the International Astronomical Union, 10 p.213-222
Journal article