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Reynolds, S.P.; Borkowski, K.J.; Hwang, U.N.A.; Harrus, I.; Petre, R.; Dubner, G. "A new young galactic supernova remnant containing a compact object: G15.9+0.2" (2006) Astrophysical Journal. 652(1 II):L45-L48
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Abstract:

We identify the radio-emitting shell-type supernova remnant G15.9+0.2 as a relatively young remnant containing an X-ray point source that may be its associated neutron star. The integrated spectrum of the remnant shell obtained from our 30 ks exploratory Chandra observation shows very strong lines that require elevated element abundances from ejecta, in particular of sulfur. A plane-shock model fit gives a temperature kT = 0.9 (0.8,1.0) keV, an ionization timescale net = 6 (4, 9) × 1010 cm-3 s, and a sulfur abundance of 2.1 (1.7, 2.7) times solar (90% confidence limits). Two-component models with one solar and one enriched component are also plausible, but they are not well constrained by the data. Various estimates give a remnant age of order 103 yr, which would make G15.9+0.2 among the dozen or so youngest remnants in the Galaxy. The sparse point-source spectrum is consistent with either a steep Γ ∼ 4 power law or a kT ∼ 0.4 keV blackbody. The spectrum is absorbed by a H column density NH ∼ 4 × 1022 cm-2 similar to that required for the remnant shell. The implied 2-9.5 keV source luminosity is about 1033 ergs s-1 for an assumed distance of 8.5 kpc consistent with the high absorption column. We suggest that the point source is either a rotation-powered pulsar or a compact central object. © 2006. The American Astronomical Society. All rights reserved.

Registro:

Documento: Artículo
Título:A new young galactic supernova remnant containing a compact object: G15.9+0.2
Autor:Reynolds, S.P.; Borkowski, K.J.; Hwang, U.N.A.; Harrus, I.; Petre, R.; Dubner, G.
Filiación:Department of Physics, North Carolina State University, Raleigh, NC 27695-8202, United States
NASA Goddard Space Flight Center, Code 660, Greenbelt, MD 20771, United States
Instituto de Astronomía y Física Del Espacio (IAFE), Casilla de Correos 67, Sucursal 28, 1428 Buenos Aires, Argentina
Palabras clave:Stars: neutron; Supernova remnants; X-rays: general; X-rays: ISM
Año:2006
Volumen:652
Número:1 II
Página de inicio:L45
Página de fin:L48
DOI: http://dx.doi.org/10.1086/510066
Título revista:Astrophysical Journal
Título revista abreviado:Astrophys. J.
ISSN:0004637X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v652_n1II_pL45_Reynolds

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Citas:

---------- APA ----------
Reynolds, S.P., Borkowski, K.J., Hwang, U.N.A., Harrus, I., Petre, R. & Dubner, G. (2006) . A new young galactic supernova remnant containing a compact object: G15.9+0.2. Astrophysical Journal, 652(1 II), L45-L48.
http://dx.doi.org/10.1086/510066
---------- CHICAGO ----------
Reynolds, S.P., Borkowski, K.J., Hwang, U.N.A., Harrus, I., Petre, R., Dubner, G. "A new young galactic supernova remnant containing a compact object: G15.9+0.2" . Astrophysical Journal 652, no. 1 II (2006) : L45-L48.
http://dx.doi.org/10.1086/510066
---------- MLA ----------
Reynolds, S.P., Borkowski, K.J., Hwang, U.N.A., Harrus, I., Petre, R., Dubner, G. "A new young galactic supernova remnant containing a compact object: G15.9+0.2" . Astrophysical Journal, vol. 652, no. 1 II, 2006, pp. L45-L48.
http://dx.doi.org/10.1086/510066
---------- VANCOUVER ----------
Reynolds, S.P., Borkowski, K.J., Hwang, U.N.A., Harrus, I., Petre, R., Dubner, G. A new young galactic supernova remnant containing a compact object: G15.9+0.2. Astrophys. J. 2006;652(1 II):L45-L48.
http://dx.doi.org/10.1086/510066