2007/08/31 by A. K. H. Kong, Albert K. H. Kong, J. M. Mïller +15 · 2 citations
Physics and Astronomy · #Absorption (acoustics) #Absorption spectroscopy #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Black-body radiation #Galaxy #Gamma-ray bursts and supernovae #Gravitational redshift #Gravitational wave #Neutron star #Optics #Physics #Pulsars and Gravitational Waves Research #Radiation #Redshift #Reflection (computer programming) #Spectral line #Surface gravity #astro-ph
paper · pdf · doi:10.1086/524137
4 pages, 4 figures; accepted for publication in ApJL
arxiv created 2007/10/11 · openalex publication_date 2007/10/17 · arxiv updated 2009/12/01 · openalex created_date 2020/11/23 · openalex updated_date 2026/08/05
During a 200 ks observation with the XMM-Newton Reflection Grating Spectrometer, we detected 16 type I X-ray bursts from GS 1826-24. We combined the burst spectra in an attempt to measure the gravitational redshifts from the surface of the neutron star. We divided the composite GS 1826-24 burst spectrum into three groups based on the blackbody temperature during the bursts. The spectra do not show any obvious discrete absorption lines. We compare our observations with those of EXO 0748-676.