GALACTIC CENTER MINISPIRAL: INTERACTION MODES OF NEUTRON STARS - Kölner UniversitätsPublikationsServer

Zajacek, Michal ORCID: 0000-0001-6450-1187, Karas, Vladimir ORCID: 0000-0002-5760-0459 and Kunneriath, Devaky (2015). GALACTIC CENTER MINISPIRAL: INTERACTION MODES OF NEUTRON STARS. Acta Polytech., 55 (3). S. 203 - 215. PRAGUE 6: CZECH TECHNICAL UNIV PRAGUE. ISSN 1805-2363

Full text not available from this repository.

DOI:10.14311/AP.2015.55.0203

Abstract

Streams of gas and dust in the inner parsec of the Galactic center form a distinct feature known as the Minispiral, which has been studied in radio waveband as well as in the infrared wavebands. A large fraction of the Minispiral gas is ionized by radiation of OB stars present in the Nuclear Star Cluster (NSC). Based on the inferred mass in the innermost parsec (similar to 10(6) solar masses), over similar to 10(3)-10(4) neutron stars should move in the sphere of gravitational influence of the SMBH. We estimate that a fraction of them propagate through the denser, ionized medium concentrated mainly along the three arms of the Minispiral. Based on the properties of the gaseous medium, we discuss different interaction regimes of magnetised neutron stars passing through this region. Moreover, we sketch expected observational effects of these regimes. The simulation results may be applied to other galactic nuclei hosting NSC, where the expected distribution of the interaction regimes is different across different galaxy types.

Item Type:

Journal Article

Creators:

Creators	Email	ORCID	ORCID Put Code
Zajacek, Michal	UNSPECIFIED	orcid.org/0000-0001-6450-1187	UNSPECIFIED
Karas, Vladimir	UNSPECIFIED	orcid.org/0000-0002-5760-0459	UNSPECIFIED
Kunneriath, Devaky	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED