Deutsch
 
Benutzerhandbuch Datenschutzhinweis Impressum Kontakt
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
  Targeting supermassive black hole binaries and gravitational wave sources for the pulsar timing array

Rosado, P. A., & Sesana, A. (2014). Targeting supermassive black hole binaries and gravitational wave sources for the pulsar timing array. Monthly Notices of the Royal Astronomical Society, 439(4), 3986-4010. doi:10.1093/mnras/stu254.

Item is

Basisdaten

einblenden: ausblenden:
Datensatz-Permalink: http://hdl.handle.net/11858/00-001M-0000-001A-233E-C Versions-Permalink: http://hdl.handle.net/11858/00-001M-0000-001A-2340-4
Genre: Zeitschriftenartikel

Dateien

einblenden: Dateien
ausblenden: Dateien
:
1311.0883.pdf (Preprint), 6MB
Name:
1311.0883.pdf
Beschreibung:
File downloaded from arXiv at 2014-08-06 11:22
Sichtbarkeit:
Öffentlich
MIME-Typ / Prüfsumme:
application/pdf / [MD5]
Technische Metadaten:
Copyright Datum:
-
Copyright Info:
-
:
3986.full.pdf (beliebiger Volltext), 4MB
Name:
3986.full.pdf
Beschreibung:
-
Sichtbarkeit:
Öffentlich
MIME-Typ / Prüfsumme:
application/pdf / [MD5]
Technische Metadaten:
Copyright Datum:
-
Copyright Info:
-
Lizenz:
-

Externe Referenzen

einblenden:

Urheber

einblenden:
ausblenden:
 Urheber:
Rosado, Pablo A.1, Autor              
Sesana, Alberto2, Autor              
Affiliations:
1Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              
2Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24013              

Inhalt

einblenden:
ausblenden:
Schlagwörter: Astrophysics, Cosmology and Extragalactic Astrophysics, astro-ph.CO,General Relativity and Quantum Cosmology, gr-qc
 Zusammenfassung: This paper presents a technique to search for supermassive black hole binaries (MBHBs) in the Sloan Digital Sky Survey (SDSS). The search is based on the peculiar properties of merging galaxies that are found in a mock galaxy catalog from the Millennium Simulation. MBHBs are expected to be the main gravitational wave (GW) sources for pulsar timing arrays (PTAs); however, it is still unclear if the observed GW signal will be produced by a few single MBHBs, or if it will have the properties of a stochastic background. The goal of this work is to produce a map of the sky in which each galaxy is assigned a probability of having suffered a recent merger, and of hosting a MBHB that could be detected by PTAs. This constitutes a step forward in the understanding of the expected PTA signal: the skymap can be used to investigate the clustering properties of PTA sources and the spatial distribution of the observable GW signal power; moreover, galaxies with the highest probabilities could be used as inputs in targeted searches for individual GW sources. We also investigate the distribution of neighboring galaxies around galaxies hosting MBHBs, finding that the most likely detectable PTA sources are located in dense galaxy environments. Different techniques are used in the search, including Bayesian and Machine Learning algorithms, with consistent outputs. Our method generates a list of galaxies classified as MBHB hosts, that can be combined with other searches to effectively reduce the number of misclassifications. The spectral coverage of the SDSS reaches less than a fifth of the sky, and the catalog becomes severely incomplete at large redshifts; however, this technique can be applied in the future to larger catalogs to obtain complete, observationally-based information of the expected GW signal detectable by PTAs.

Details

einblenden:
ausblenden:
Sprache(n):
 Datum: 2013-11-042014-03-052014
 Publikationsstatus: Im Druck publiziert
 Seiten: 25 pages, 29 figures
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: arXiv: 1311.0883
DOI: 10.1093/mnras/stu254
URI: http://arxiv.org/abs/1311.0883
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: Monthly Notices of the Royal Astronomical Society
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Oxford : Blackwell Science
Seiten: - Band / Heft: 439 (4) Artikelnummer: - Start- / Endseite: 3986 - 4010 Identifikator: ISSN: 1365-8711
CoNE: /journals/resource/1000000000024150