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GalNUC SIGNED

Astrophysical Dynamics and Statistical Physics of Galactic Nuclei

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EC-Contrib. €

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Project "GalNUC" data sheet

The following table provides information about the project.

Coordinator
EOTVOS LORAND TUDOMANYEGYETEM 

Organization address
address: EGYETEM TER 1-3
city: BUDAPEST
postcode: 1053
website: www.elte.hu

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Hungary [HU]
 Project website http://sns.ias.edu/
 Total cost 1˙511˙436 €
 EC max contribution 1˙511˙436 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2014-STG
 Funding Scheme ERC-STG
 Starting year 2015
 Duration (year-month-day) from 2015-08-01   to  2020-07-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    EOTVOS LORAND TUDOMANYEGYETEM HU (BUDAPEST) coordinator 1˙511˙436.00

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 Project objective

We address some of the major unsolved questions of galactic nuclei using methods of condensed matter physics. Galactic nuclei host a central supermassive black hole, a dense population of stars and compact objects, and in many cases a bright gaseous disk feeding the supermassive black hole. The observed stellar distribution exhibits both spherical and counterrotating disk-like structures. Existing theoretical models cannot convincingly explain the origin of the stellar disks. Is there also a “dark cusp” or “dark disk” of stellar mass black holes? Are there intermediate mass black holes in the Galactic center? We examine the statistical physics of galactic nuclei and their long term dynamical evolution. A star orbiting a supermassive black hole on an eccentric precessing orbit covers an axisymmetric annulus. The long-term gravitational interaction between such annuli is similar to the Coulomb interaction between axisymmetric molecules constituting a liquid crystal. We apply standard methods of condensed matter physics to examine these astrophysical systems. The observed disk and spherical structures represent isotropic-nematic phase transitions. We derive the phase space distribution and time-evolution of different stellar components including a population of black holes. Further, we investigate the interaction of a stellar cluster with a gaseous disk, if present. This leads to the formation of gaps, warps, and spiral waves in the disk, the redistribution of stellar objects, and possibly the formation of intermediate mass black holes. We explore the implications for electromagnetic and gravitational wave observatories. Dark disks of black holes could provide the most frequent source of gravitational waves for LIGO and VIRGO. These detectors will open a new window on the Universe; the proposed project will open a new field in gravitational wave astrophysics to interpret the sources. We also explore implications for electromagnetic observations.

 Publications

year authors and title journal last update
List of publications.
2019 Y. Yang, I. Bartos, V. Gayathri, K. E. S. Ford, Z. Haiman, S. Klimenko, B. Kocsis, S. Márka, Z. Márka, B. McKernan, R. O’Shaughnessy
Hierarchical Black Hole Mergers in Active Galactic Nuclei
published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.123.181101
Physical Review Letters 123/18 2020-04-01
2019 Giacomo Fragione, Nathan W C Leigh, Rosalba Perna, Bence Kocsis
Tidal disruption events on to stellar black holes in triples
published pages: 727-737, ISSN: 0035-8711, DOI: 10.1093/mnras/stz2213
Monthly Notices of the Royal Astronomical Society 489/1 2020-04-01
2019 Ákos Szölgyén, Yohai Meiron, Bence Kocsis
Anisotropic Mass Segregation in Rotating Globular Clusters
published pages: 123, ISSN: 1538-4357, DOI: 10.3847/1538-4357/ab50bb
The Astrophysical Journal 887/2 2020-04-01
2019 Giacomo Fragione, Bence Kocsis
Black hole mergers from quadruples
published pages: 4781-4789, ISSN: 0035-8711, DOI: 10.1093/mnras/stz1175
Monthly Notices of the Royal Astronomical Society 486/4 2020-04-01
2019 László Gondán, Bence Kocsis
Measurement Accuracy of Inspiraling Eccentric Neutron Star and Black Hole Binaries Using Gravitational Waves
published pages: 178, ISSN: 1538-4357, DOI: 10.3847/1538-4357/aaf893
The Astrophysical Journal 871/2 2020-04-01
2019 Kohei Hattori, Naoteru Gouda, Hiromichi Tagawa, Nobuyuki Sakai, Taihei Yano, Junichi Baba, Jun Kumamoto
Metallicity dependence of the Hercules stream in Gaia/RAVE data – explanation by non-closed orbits
published pages: 4540-4562, ISSN: 0035-8711, DOI: 10.1093/mnras/stz266
Monthly Notices of the Royal Astronomical Society 484/4 2020-04-01
2019 Y. Yang, I. Bartos, Z. Haiman, B. Kocsis, Z. Márka, N. C. Stone, S. Márka
AGN Disks Harden the Mass Distribution of Stellar-mass Binary Black Hole Mergers
published pages: 122, ISSN: 1538-4357, DOI: 10.3847/1538-4357/ab16e3
The Astrophysical Journal 876/2 2020-04-01
2018 Giacomo Fragione, Bence Kocsis
Black Hole Mergers from an Evolving Population of Globular Clusters
published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.121.161103
Physical Review Letters 121/16 2020-04-01
2019 Bao-Minh Hoang, Smadar Naoz, Bence Kocsis, Will M. Farr, Jessica McIver
Detecting Supermassive Black Hole–induced Binary Eccentricity Oscillations with LISA
published pages: L31, ISSN: 2041-8213, DOI: 10.3847/2041-8213/ab14f7
The Astrophysical Journal 875/2 2020-04-01
2019 K Rainer Corley, Imre Bartos, Leo P Singer, Andrew R Williamson, Zoltán Haiman, Bence Kocsis, Samaya Nissanke, Zsuzsa Márka, Szabolcs Márka
Localization of binary black hole mergers with known inclination
published pages: 4459-4463, ISSN: 0035-8711, DOI: 10.1093/mnras/stz2072
Monthly Notices of the Royal Astronomical Society 488/3 2020-04-01
2019 Alexander Rasskazov, Giacomo Fragione, Nathan W. C. Leigh, Hiromichi Tagawa, Alberto Sesana, Adrian Price-Whelan, Elena Maria Rossi
Hypervelocity Stars from a Supermassive Black Hole–Intermediate-mass Black Hole Binary
published pages: 17, ISSN: 1538-4357, DOI: 10.3847/1538-4357/ab1c5d
The Astrophysical Journal 878/1 2020-04-01
2018 Giacomo Fragione, Nathan W. C. Leigh, Idan Ginsburg, Bence Kocsis
Tidal Disruption Events and Gravitational Waves from Intermediate-mass Black Holes in Evolving Globular Clusters across Space and Time
published pages: 119, ISSN: 1538-4357, DOI: 10.3847/1538-4357/aae486
The Astrophysical Journal 867/2 2020-04-01
2019 Yohai Meiron, Bence Kocsis
Resonant Relaxation in Globular Clusters
published pages: 138, ISSN: 1538-4357, DOI: 10.3847/1538-4357/ab1b32
The Astrophysical Journal 878/2 2020-04-01
2017 Imre Bartos, Bence Kocsis, Zoltán Haiman, Szabolcs Márka
Rapid and Bright Stellar-mass Binary Black Hole Mergers in Active Galactic Nuclei
published pages: 165, ISSN: 1538-4357, DOI: 10.3847/1538-4357/835/2/165
The Astrophysical Journal 835/2 2019-09-17
2017 Yohai Meiron, Bence Kocsis, Abraham Loeb
DETECTING TRIPLE SYSTEMS WITH GRAVITATIONAL WAVE OBSERVATIONS
published pages: 200, ISSN: 1538-4357, DOI: 10.3847/1538-4357/834/2/200
The Astrophysical Journal 834/2 2019-09-17
2018 László Gondán, Bence Kocsis, Péter Raffai, Zsolt Frei
Accuracy of Estimating Highly Eccentric Binary Black Hole Parameters with Gravitational-wave Detections
published pages: 34, ISSN: 1538-4357, DOI: 10.3847/1538-4357/aaad0e
The Astrophysical Journal 855/1 2019-09-17
2018 Bao-Minh Hoang, Smadar Naoz, Bence Kocsis, Frederic A. Rasio, Fani Dosopoulou
Black Hole Mergers in Galactic Nuclei Induced by the Eccentric Kozai–Lidov Effect
published pages: 140, ISSN: 1538-4357, DOI: 10.3847/1538-4357/aaafce
The Astrophysical Journal 856/2 2019-09-17
2016 Yonadav Barry Ginat, Yohai Meiron, Noam Soker
The influence of mergers and ram-pressure stripping on black hole–bulge correlations
published pages: 3533-3541, ISSN: 0035-8711, DOI: 10.1093/mnras/stw1566
Monthly Notices of the Royal Astronomical Society 461/4 2019-09-17
2016 Ryan M. O’Leary, Yohai Meiron, Bence Kocsis
DYNAMICAL FORMATION SIGNATURES OF BLACK HOLE BINARIES IN THE FIRST DETECTED MERGERS BY LIGO
published pages: L12, ISSN: 2041-8213, DOI: 10.3847/2041-8205/824/1/L12
The Astrophysical Journal 824/1 2019-09-17
2018 Alberto Sesana, Zoltán Haiman, Bence Kocsis, Luke Zoltan Kelley
Testing the Binary Hypothesis: Pulsar Timing Constraints on Supermassive Black Hole Binary Candidates
published pages: 42, ISSN: 1538-4357, DOI: 10.3847/1538-4357/aaad0f
The Astrophysical Journal 856/1 2019-09-17
2018 Giacomo Fragione, Idan Ginsburg, Bence Kocsis
Gravitational Waves and Intermediate-mass Black Hole Retention in Globular Clusters
published pages: 92, ISSN: 1538-4357, DOI: 10.3847/1538-4357/aab368
The Astrophysical Journal 856/2 2019-09-17
2018 Bence Kocsis, Teruaki Suyama, Takahiro Tanaka, Shuichiro Yokoyama
Hidden Universality in the Merger Rate Distribution in the Primordial Black Hole Scenario
published pages: 41, ISSN: 1538-4357, DOI: 10.3847/1538-4357/aaa7f4
The Astrophysical Journal 854/1 2019-09-17
2016 Kennedy, Gareth F.; Meiron, Yohai; Shukirgaliyev, Bekdaulet; Panamarev, Taras; Berczik, Peter; Just, Andreas; Spurzem, Rainer
Star-disc interaction in galactic nuclei: orbits and rates of accreted stars
published pages: 240-255, ISSN: 0035-8711, DOI: 10.5281/zenodo.437518
Monthly Notices of the Royal Astronomical Society 460/1 2019-09-17
2018 Yohai Meiron, Bence Kocsis
Diffusion and Mixing in Globular Clusters
published pages: 87, ISSN: 1538-4357, DOI: 10.3847/1538-4357/aaadac
The Astrophysical Journal 855/2 2019-09-17
2018 Ádám Takács, Bence Kocsis
Isotropic–Nematic Phase Transitions in Gravitational Systems. II. Higher Order Multipoles
published pages: 113, ISSN: 1538-4357, DOI: 10.3847/1538-4357/aab268
The Astrophysical Journal 856/2 2019-09-17
2016 Stephan, Alexander P.; Naoz, Smadar; Ghez, Andrea M.; Witzel, Gunther; Sitarski, Breann N.; Do, Tuan; Kocsis, Bence
Merging binaries in the Galactic Center: the eccentric Kozai–Lidov mechanism with stellar evolution
published pages: 3494-3504, ISSN: 0035-8711, DOI: 10.5281/zenodo.437526
Monthly Notices of the Royal Astronomical Society 460/4 2019-09-17
2017 Zacharias Roupas, Bence Kocsis, Scott Tremaine
Isotropic–Nematic Phase Transitions in Gravitational Systems
published pages: 90, ISSN: 1538-4357, DOI: 10.3847/1538-4357/aa7141
The Astrophysical Journal 842/2 2019-09-17
2015 Timothy D. Brandt, Bence Kocsis
DISRUPTED GLOBULAR CLUSTERS CAN EXPLAIN THE GALACTIC CENTER GAMMA-RAY EXCESS
published pages: 15, ISSN: 1538-4357, DOI: 10.1088/0004-637X/812/1/15
The Astrophysical Journal 812/1 2019-09-17
2018 Hiromichi Tagawa, Takayuki R. Saitoh, Bence Kocsis
Compact Object Mergers Driven by Gas Fallback
published pages: 261101, ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.120.261101
Physical Review Letters 120/26 2019-09-17
2018 Taras Panamarev, Bekdaulet Shukirgaliyev, Yohai Meiron, Peter Berczik, Andreas Just, Rainer Spurzem, Chingis Omarov, Emmanuil Vilkoviskij
Star–disc interaction in galactic nuclei: formation of a central stellar disc
published pages: 4224-4233, ISSN: 0035-8711, DOI: 10.1093/mnras/sty459
Monthly Notices of the Royal Astronomical Society 476/3 2019-09-17
2018 Manuel Arca-Sedda, Bence Kocsis, Timothy D Brandt
Gamma-ray and X-ray emission from the Galactic centre: hints on the nuclear star cluster formation history
published pages: 900-916, ISSN: 0035-8711, DOI: 10.1093/mnras/sty1454
Monthly Notices of the Royal Astronomical Society 479/1 2019-09-17
2018 Hiromichi Tagawa, Masayuki Umemura
Merger of Multiple Accreting Black Holes Concordant with Gravitational-wave Events
published pages: 47, ISSN: 1538-4357, DOI: 10.3847/1538-4357/aab0a4
The Astrophysical Journal 856/1 2019-09-17
2018 Ákos Szölgyén, Bence Kocsis
Black Hole Disks in Galactic Nuclei
published pages: 101101, ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.121.101101
Physical Review Letters 121/10 2019-09-17
2018 László Gondán, Bence Kocsis, Péter Raffai, Zsolt Frei
Eccentric Black Hole Gravitational-wave Capture Sources in Galactic Nuclei: Distribution of Binary Parameters
published pages: 5, ISSN: 1538-4357, DOI: 10.3847/1538-4357/aabfee
The Astrophysical Journal 860/1 2019-09-17

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