Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
  Search for Continuous Gravitational Waves from Scorpius X-1 in LIGO O2 Data

Zhang, Y., Papa, M. A., Krishnan, B., & Watts, A. L. (2021). Search for Continuous Gravitational Waves from Scorpius X-1 in LIGO O2 Data. The Astrophysical Journal Letters, 906(2): L14. doi:10.3847/2041-8213/abd256.

Item is

Basisdaten

einblenden: ausblenden:
Genre: Zeitschriftenartikel

Dateien

einblenden: Dateien
ausblenden: Dateien
:
2011.04414.pdf (Preprint), 2MB
Name:
2011.04414.pdf
Beschreibung:
File downloaded from arXiv at 2020-11-26 10:15
OA-Status:
Sichtbarkeit:
Öffentlich
MIME-Typ / Prüfsumme:
application/pdf / [MD5]
Technische Metadaten:
Copyright Datum:
-
Copyright Info:
-
:
Zhang_2021_ApJL_906_L14.pdf (Verlagsversion), 831KB
Name:
Zhang_2021_ApJL_906_L14.pdf
Beschreibung:
Open Access
OA-Status:
Sichtbarkeit:
Öffentlich
MIME-Typ / Prüfsumme:
application/pdf / [MD5]
Technische Metadaten:
Copyright Datum:
-
Copyright Info:
-

Externe Referenzen

einblenden:

Urheber

einblenden:
ausblenden:
 Urheber:
Zhang, Yuanhao1, Autor           
Papa, Maria Alessandra1, Autor           
Krishnan, Badri2, Autor           
Watts , Anna L., Autor
Affiliations:
1Searching for Continuous Gravitational Waves, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_2630691              
2Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              

Inhalt

einblenden:
ausblenden:
Schlagwörter: Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE,General Relativity and Quantum Cosmology, gr-qc
 Zusammenfassung: We present the results of a search in LIGO O2 public data for continuous
gravitational waves from the neutron star in the low-mass X-ray binary Scorpius
X-1. We search for signals with $\approx$ constant frequency in the range
40-180 Hz. Thanks to the efficiency of our search pipeline we can use a long
coherence time and achieve unprecedented sensitivity, significantly improving
on existing results. This is the first search that has been able to probe
gravitational wave amplitudes that could balance the accretion torque at the
neutron star radius. Our search excludes emission at this level between 67.5 Hz
and 131.5 Hz, for an inclination angle $44^\circ \pm 6^\circ$ derived from
radio observations (Fomalont et al. 2001), and assuming that the spin axis is
perpendicular to the orbital plane. If the torque arm is $\approx $ 26 km -- a
conservative estimate of the \alfven\ radius -- our results are more
constraining than the indirect limit across the band. This allows us to exclude
certain mass-radius combinations and to place upper limits on the strength of
the star's magnetic field. We also correct a mistake that appears in the
literature in the equation that gives the gravitational wave amplitude at the
torque balance (Abbott et al. 2017b, 2019a) and we re-interpret the associated
latest LIGO/Virgo results in light of this.

Details

einblenden:
ausblenden:
Sprache(n):
 Datum: 2020-11-092021
 Publikationsstatus: Erschienen
 Seiten: 12 pages, 4 figures
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: arXiv: 2011.04414
DOI: 10.3847/2041-8213/abd256
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: The Astrophysical Journal Letters
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 906 (2) Artikelnummer: L14 Start- / Endseite: - Identifikator: -