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  1. Article: Dynamical boson stars.

    Liebling, Steven L / Palenzuela, Carlos

    Living reviews in relativity

    2017  Volume 20, Issue 1, Page(s) 5

    Abstract: The idea of stable, localized bundles of energy has strong appeal as a model for particles. In the 1950s, John Wheeler envisioned such bundles as smooth configurations of electromagnetic energy that he ... ...

    Abstract The idea of stable, localized bundles of energy has strong appeal as a model for particles. In the 1950s, John Wheeler envisioned such bundles as smooth configurations of electromagnetic energy that he called
    Language English
    Publishing date 2017-11-13
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 1416143-6
    ISSN 1433-8351
    ISSN 1433-8351
    DOI 10.1007/s41114-017-0007-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Dynamical Boson Stars.

    Liebling, Steven L / Palenzuela, Carlos

    Living reviews in relativity

    2012  Volume 15, Issue 1, Page(s) 6

    Abstract: The idea of stable, localized bundles of energy has strong appeal as a model for particles. In the 1950s, John Wheeler envisioned such bundles as smooth configurations of electromagnetic energy that he ... ...

    Abstract The idea of stable, localized bundles of energy has strong appeal as a model for particles. In the 1950s, John Wheeler envisioned such bundles as smooth configurations of electromagnetic energy that he called
    Language English
    Publishing date 2012-05-08
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 1416143-6
    ISSN 1433-8351
    ISSN 1433-8351
    DOI 10.12942/lrr-2012-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Dynamical Boson Stars

    Steven L. Liebling / Carlos Palenzuela

    Living Reviews in Relativity, Vol 15, p

    2012  Volume 6

    Abstract: The idea of stable, localized bundles of energy has strong appeal as a model for particles. In the 1950s, John Wheeler envisioned such bundles as smooth configurations of electromagnetic energy that he called geons, but none were found. Instead, particle- ...

    Abstract The idea of stable, localized bundles of energy has strong appeal as a model for particles. In the 1950s, John Wheeler envisioned such bundles as smooth configurations of electromagnetic energy that he called geons, but none were found. Instead, particle-like solutions were found in the late 1960s with the addition of a scalar field, and these were given the name boson stars. Since then, boson stars find use in a wide variety of models as sources of dark matter, as black hole mimickers, in simple models of binary systems, and as a tool in finding black holes in higher dimensions with only a single Killing vector. We discuss important varieties of boson stars, their dynamic properties, and some of their uses, concentrating on recent efforts.
    Keywords Numerical relativity ; Boson stars ; Physics ; QC1-999 ; Science ; Q ; DOAJ:Physics (General) ; DOAJ:Physics and Astronomy
    Language English
    Publishing date 2012-05-01T00:00:00Z
    Publisher Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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  4. Article ; Online: Balasubramanian et al. Reply.

    Balasubramanian, Venkat / Buchel, Alex / Green, Stephen R / Lehner, Luis / Liebling, Steven L

    Physical review letters

    2015  Volume 115, Issue 4, Page(s) 49102

    Language English
    Publishing date 2015-07-24
    Publishing country United States
    Document type Comment ; Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.115.049102
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  5. Article ; Online: Dual jets from binary black holes.

    Palenzuela, Carlos / Lehner, Luis / Liebling, Steven L

    Science (New York, N.Y.)

    2010  Volume 329, Issue 5994, Page(s) 927–930

    Abstract: The coalescence of supermassive black holes--a natural outcome when galaxies merge--should produce gravitational waves and would likely be associated with energetic electromagnetic events. We have studied the coalescence of such binary black holes within ...

    Abstract The coalescence of supermassive black holes--a natural outcome when galaxies merge--should produce gravitational waves and would likely be associated with energetic electromagnetic events. We have studied the coalescence of such binary black holes within an external magnetic field produced by the expected circumbinary disk surrounding them. Solving the Einstein equations to describe black holes interacting with surrounding plasma, we present numerical evidence for possible jets driven by these systems. Extending the process described by Blandford and Znajek for a single, spinning black hole, the picture that emerges suggests that the electromagnetic field extracts energy from the orbiting black holes, which ultimately merge and settle into the standard Blandford-Znajek scenario. Emissions along these jets could potentially be observable at large distances.
    Language English
    Publishing date 2010-08-20
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 128410-1
    ISSN 1095-9203 ; 0036-8075
    ISSN (online) 1095-9203
    ISSN 0036-8075
    DOI 10.1126/science.1191766
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

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  6. Article ; Online: Holographic thermalization, stability of anti-de sitter space, and the Fermi-Pasta-Ulam paradox.

    Balasubramanian, Venkat / Buchel, Alex / Green, Stephen R / Lehner, Luis / Liebling, Steven L

    Physical review letters

    2014  Volume 113, Issue 7, Page(s) 71601

    Abstract: For a real massless scalar field in general relativity with a negative cosmological constant, we uncover a large class of spherically symmetric initial conditions that are close to anti-de Sitter space (AdS) but whose numerical evolution does not result ... ...

    Abstract For a real massless scalar field in general relativity with a negative cosmological constant, we uncover a large class of spherically symmetric initial conditions that are close to anti-de Sitter space (AdS) but whose numerical evolution does not result in black hole formation. According to the AdS/conformal field theory (CFT) dictionary, these bulk solutions are dual to states of a strongly interacting boundary CFT that fail to thermalize at late times. Furthermore, as these states are not stationary, they define dynamical CFT configurations that do not equilibrate. We develop a two-time-scale perturbative formalism that captures both direct and inverse cascades of energy and agrees with our fully nonlinear evolutions in the appropriate regime. We also show that this formalism admits a large class of quasiperiodic solutions. Finally, we demonstrate a striking parallel between the dynamics of AdS and the classic Fermi-Pasta-Ulam-Tsingou problem.
    Language English
    Publishing date 2014-08-15
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.113.071601
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Electromagnetic and gravitational outputs from binary-neutron-star coalescence.

    Palenzuela, Carlos / Lehner, Luis / Ponce, Marcelo / Liebling, Steven L / Anderson, Matthew / Neilsen, David / Motl, Patrick

    Physical review letters

    2013  Volume 111, Issue 6, Page(s) 61105

    Abstract: The late stage of an inspiraling neutron-star binary gives rise to strong gravitational wave emission due to its highly dynamic, strong gravity. Moreover, interactions between the stellar magnetospheres can produce considerable electromagnetic radiation. ...

    Abstract The late stage of an inspiraling neutron-star binary gives rise to strong gravitational wave emission due to its highly dynamic, strong gravity. Moreover, interactions between the stellar magnetospheres can produce considerable electromagnetic radiation. We study this scenario using fully general relativistic, resistive magnetohydrodynamic simulations. We show that these interactions extract kinetic energy from the system, dissipate heat, and power radiative Poynting flux, as well as develop current sheets. Our results indicate that this power can (i) outshine pulsars in binaries, (ii) display a distinctive angular- and time-dependent pattern, and (iii) radiate within large opening angles. These properties suggest that some binary neutron-star mergers are ideal candidates for multimessenger astronomy.
    Language English
    Publishing date 2013-08-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.111.061105
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  8. Article: Dual Jets from Binary Black Holes

    Palenzuela, Carlos / Lehner, Luis / Liebling, Steven L

    Science. 2010 Aug. 20, v. 329, no. 5994

    2010  

    Abstract: The coalescence of supermassive black holes--a natural outcome when galaxies merge--should produce gravitational waves and would likely be associated with energetic electromagnetic events. We have studied the coalescence of such binary black holes within ...

    Abstract The coalescence of supermassive black holes--a natural outcome when galaxies merge--should produce gravitational waves and would likely be associated with energetic electromagnetic events. We have studied the coalescence of such binary black holes within an external magnetic field produced by the expected circumbinary disk surrounding them. Solving the Einstein equations to describe black holes interacting with surrounding plasma, we present numerical evidence for possible jets driven by these systems. Extending the process described by Blandford and Znajek for a single, spinning black hole, the picture that emerges suggests that the electromagnetic field extracts energy from the orbiting black holes, which ultimately merge and settle into the standard Blandford-Znajek scenario. Emissions along these jets could potentially be observable at large distances.
    Keywords electromagnetic field ; emissions ; energy ; equations ; magnetic fields ; models
    Language English
    Dates of publication 2010-0820
    Size p. 927-930.
    Publishing place American Association for the Advancement of Science
    Document type Article
    ZDB-ID 128410-1
    ISSN 1095-9203 ; 0036-8075
    ISSN (online) 1095-9203
    ISSN 0036-8075
    DOI 10.1126/science.1191766
    Database NAL-Catalogue (AGRICOLA)

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  9. Article: Binary black holes' effects on electromagnetic fields.

    Palenzuela, Carlos / Anderson, Matthew / Lehner, Luis / Liebling, Steven L / Neilsen, David

    Physical review letters

    2009  Volume 103, Issue 8, Page(s) 81101

    Abstract: In addition to producing gravitational waves, the dynamics of a binary black hole system could induce emission of electromagnetic radiation by affecting the behavior of plasmas and electromagnetic fields in their vicinity. We here study how the ... ...

    Abstract In addition to producing gravitational waves, the dynamics of a binary black hole system could induce emission of electromagnetic radiation by affecting the behavior of plasmas and electromagnetic fields in their vicinity. We here study how the electromagnetic fields are affected by a pair of orbiting black holes through the merger. In particular, we show how the binary's dynamics induce a variability in possible electromagnetically induced emissions as well as a possible enhancement of electromagnetic fields during the late-merge and merger epochs. These time dependent features will likely leave their imprint in processes generating detectable emissions and can be exploited in the detection of electromagnetic counterparts of gravitational waves.
    Language English
    Publishing date 2009-08-21
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.103.081101
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  10. Article: Bioprospecting the Bibleome: Adding Evidence to Support the Inflammatory Basis of Cancer.

    Elkin, Peter L / Frankel, Andrew / Liebow-Liebling, Ester H / Elkin, Jared R / Tuttle, Mark S / Brown, Steven H

    Metabolomics : open access

    2013  Volume 2, Issue 112

    Abstract: Background cancer significance and question: BioProspecting is a novel approach that enabled our team to mine genetic marker related data from the New England Journal of Medicine (NEJM) utilizing Systematized Nomenclature of Medicine-Clinical Terms ( ... ...

    Abstract Background cancer significance and question: BioProspecting is a novel approach that enabled our team to mine genetic marker related data from the New England Journal of Medicine (NEJM) utilizing Systematized Nomenclature of Medicine-Clinical Terms (SNOMED CT) and the Human Gene Ontology (HUGO). Genes associated with disorders using the Multi-threaded Clinical Vocabulary Server (MCVS) Natural Language Processing (NLP) engine, whose output was represented as an ontology-network incorporating the semantic encodings of the literature. Metabolic functions were used to identify potentially novel relationships between (genes or proteins) and (diseases or drugs). In an effort to identify genes important to transformation of normal tissue into a malignancy, we went on to identify the genes linked to multiple cancers and then mapped those genes to metabolic and signaling pathways.
    Findings: Ten Genes were related to 30 or more cancers, 72 genes were related to 20 or more cancers and 191 genes were related to 10 or more cancers. The three pathways most often associated with the top 200 novel cancer markers were the Acute Phase Response Signaling, the Glucocorticoid Receptor Signaling and the Hepatic Fibrosis/Hepatic Stellate Cell Activation pathway.
    Meaning and implications of the advance: This association highlights the role of inflammation in the induction and perhaps transformation of mortal cells into cancers.
    Major findings: BioProspecting can speed our identification and understanding of synergies between articles in the biomedical literature. In this case we found considerable synergy between the Oncology literature and the Sepsis literature. By mapping these associations to known metabolic, regulatory and signaling pathways we were able to identify further evidence for the inflammatory basis of cancer.
    Language English
    Publishing date 2013-10-31
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2715973-5
    ISSN 2153-0769
    ISSN 2153-0769
    DOI 10.4172/2153-0769.1000112
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