Microlensing neutron stars

Schwarz D, Seidel D (2002)
Astronomy and Astrophysics 388(2): 483-491.

Download
Es wurde kein Volltext hochgeladen. Nur Publikationsnachweis!
Zeitschriftenaufsatz | Veröffentlicht | Englisch
Autor
Abstract / Bemerkung
We investigate the chances that neutron stars act as the lens in a gravitational microlensing event towards the galactic bulge or a spiral arm. The observation of neutron stars by means of gravitational microlensing would allow the estimation of neutron star masses independently of the property of being a pulsar in a binary system. We estimate the contribution of neutron stars to the optical depth and the lensing rate based on two different models of pulsar distribution in the galaxy. Since only a small fraction of all neutron stars are pulsars, it is unlikely to find a pulsar that acts as a microlens by chance. A position comparison of known radio pulsars with observed microlensing candidates towards the galactic bulge and spiral arms shows no candidate pairs, which is consistent with the theoretical expectation. To improve the probability of microlensing a pulsar, we suggest a search for gravitational microlensing events of known nearby high proper motion pulsars. The pulsar PSR J1932+1059 is a good candidate for an astrometric detection of gravitational lensing.
Erscheinungsjahr
Zeitschriftentitel
Astronomy and Astrophysics
Band
388
Zeitschriftennummer
2
Seite
483-491
ISSN
eISSN
PUB-ID

Zitieren

Schwarz D, Seidel D. Microlensing neutron stars. Astronomy and Astrophysics. 2002;388(2):483-491.
Schwarz, D., & Seidel, D. (2002). Microlensing neutron stars. Astronomy and Astrophysics, 388(2), 483-491. doi:10.1051/0004-6361:20020530
Schwarz, D., and Seidel, D. (2002). Microlensing neutron stars. Astronomy and Astrophysics 388, 483-491.
Schwarz, D., & Seidel, D., 2002. Microlensing neutron stars. Astronomy and Astrophysics, 388(2), p 483-491.
D. Schwarz and D. Seidel, “Microlensing neutron stars”, Astronomy and Astrophysics, vol. 388, 2002, pp. 483-491.
Schwarz, D., Seidel, D.: Microlensing neutron stars. Astronomy and Astrophysics. 388, 483-491 (2002).
Schwarz, Dominik, and Seidel, D. “Microlensing neutron stars”. Astronomy and Astrophysics 388.2 (2002): 483-491.

Export

Markieren/ Markierung löschen
Markierte Publikationen

Open Data PUB

Web of Science

Dieser Datensatz im Web of Science®

Quellen

arXiv: astro-ph/0204053

Suchen in

Google Scholar