2012/08/01 by V. Hambaryan, В. Ф. Сулейманов, V. Suleimanov +3
Physics and Astronomy · #Absorption (acoustics) #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Galaxy #Gamma-ray bursts and supernovae #Magnetic field #Neutron #Neutron star #Nuclear physics #Optics #Phase (matter) #Physics #Pulsars and Gravitational Waves Research #Redshift #Spectroscopy #astro-ph.HE #astro-ph.SR
paper · pdf · doi:10.1017/s1743921312024258
Proceedings of IAUS 291 "Neutron Stars and Pulsars: Challenges and Opportunities after 80 years", J. van Leeuwen (ed.); 3 pages, 3 figures
openalex publication_date 2012/08/01 · arxiv created 2012/11/09 · arxiv updated 2015/06/12 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Abstract A model with a condensed iron surface and partially ionized hydrogen-thin atmosphere allows us to fit simultaneously the observed general spectral shape and the broad absorption feature (observed at 0.3 keV) in different spin phases of the isolated neutron star RBS 1223. We constrain some physical properties of the X-ray emitting areas, i.e. the temperatures (T pole1 ~ 105 eV, T pole2 ~ 99 eV), magnetic field strengths (B pole1 ≈ B pole2 ~ 8.6 × 10 13 G) at the poles, and their distribution parameters (a1 ~ 0.61, a2 ~ 0.29, indicating an absence of strong toroidal magnetic field component). In addition, we are able to place some constraints on the geometry of the emerging X-ray emission and the gravitational redshift (z ~ 0.16 0.03 −0.01 ) of the isolated neutron star RBS 1223.