A Preliminary Analysis of a New Chandra Observation (ObsID 6148) of Cir X-1

Risultato della ricerca: Chapter

Abstract

We present the preliminary spectral analysis of a 25 ks long Chandra observation of the peculiar source Cir X-1 near the periastron passage. We estimate more precise coordinates of the source compatible with the optical and radio counterpart coordinates. We detect emission lines associated to Mg XII, Si XIII, Si XIV, S XV, S XVI Ar XVII, Ar XVIII, Ca XIX, Ca XX, Fe XXV, Fe XXVI showing a redshift of 470 km s-1. The more intense emission features at 6.6 keV show a double-peaked shape that can be modelled with two or three Gaussian lines.
Lingua originaleEnglish
Titolo della pubblicazione ospiteInternational Conference on Astrophysics of Compact Objects
Pagine248-250
Numero di pagine3
Stato di pubblicazionePublished - 2008

Serie di pubblicazioni

NomeAIP CONFERENCE PROCEEDINGS

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spectrum analysis
estimates

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Plant Science
  • Physics and Astronomy(all)
  • Nature and Landscape Conservation

Cita questo

Robba, N., Di Salvo, T., D'Ai', A., Iaria, R., & Burderi (2008). A Preliminary Analysis of a New Chandra Observation (ObsID 6148) of Cir X-1. In International Conference on Astrophysics of Compact Objects (pagg. 248-250). (AIP CONFERENCE PROCEEDINGS).

A Preliminary Analysis of a New Chandra Observation (ObsID 6148) of Cir X-1. / Robba, Natale; Di Salvo, Tiziana; D'Ai', Antonino; Iaria, Rosario; Burderi.

International Conference on Astrophysics of Compact Objects. 2008. pag. 248-250 (AIP CONFERENCE PROCEEDINGS).

Risultato della ricerca: Chapter

Robba, N, Di Salvo, T, D'Ai', A, Iaria, R & Burderi 2008, A Preliminary Analysis of a New Chandra Observation (ObsID 6148) of Cir X-1. in International Conference on Astrophysics of Compact Objects. AIP CONFERENCE PROCEEDINGS, pagg. 248-250.
Robba N, Di Salvo T, D'Ai' A, Iaria R, Burderi. A Preliminary Analysis of a New Chandra Observation (ObsID 6148) of Cir X-1. In International Conference on Astrophysics of Compact Objects. 2008. pag. 248-250. (AIP CONFERENCE PROCEEDINGS).
Robba, Natale ; Di Salvo, Tiziana ; D'Ai', Antonino ; Iaria, Rosario ; Burderi. / A Preliminary Analysis of a New Chandra Observation (ObsID 6148) of Cir X-1. International Conference on Astrophysics of Compact Objects. 2008. pagg. 248-250 (AIP CONFERENCE PROCEEDINGS).
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abstract = "We present the preliminary spectral analysis of a 25 ks long Chandra observation of the peculiar source Cir X-1 near the periastron passage. We estimate more precise coordinates of the source compatible with the optical and radio counterpart coordinates. We detect emission lines associated to Mg XII, Si XIII, Si XIV, S XV, S XVI Ar XVII, Ar XVIII, Ca XIX, Ca XX, Fe XXV, Fe XXVI showing a redshift of 470 km s-1. The more intense emission features at 6.6 keV show a double-peaked shape that can be modelled with two or three Gaussian lines.",
keywords = "Accretion and accretion disks, Black holes, Distances, Neutron stars, X-ray binaries, radial velocities; spatial distribution of galaxies, redshifts",
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AU - Di Salvo, Tiziana

AU - D'Ai', Antonino

AU - Iaria, Rosario

AU - Burderi, null

PY - 2008

Y1 - 2008

N2 - We present the preliminary spectral analysis of a 25 ks long Chandra observation of the peculiar source Cir X-1 near the periastron passage. We estimate more precise coordinates of the source compatible with the optical and radio counterpart coordinates. We detect emission lines associated to Mg XII, Si XIII, Si XIV, S XV, S XVI Ar XVII, Ar XVIII, Ca XIX, Ca XX, Fe XXV, Fe XXVI showing a redshift of 470 km s-1. The more intense emission features at 6.6 keV show a double-peaked shape that can be modelled with two or three Gaussian lines.

AB - We present the preliminary spectral analysis of a 25 ks long Chandra observation of the peculiar source Cir X-1 near the periastron passage. We estimate more precise coordinates of the source compatible with the optical and radio counterpart coordinates. We detect emission lines associated to Mg XII, Si XIII, Si XIV, S XV, S XVI Ar XVII, Ar XVIII, Ca XIX, Ca XX, Fe XXV, Fe XXVI showing a redshift of 470 km s-1. The more intense emission features at 6.6 keV show a double-peaked shape that can be modelled with two or three Gaussian lines.

KW - Accretion and accretion disks

KW - Black holes

KW - Distances

KW - Neutron stars

KW - X-ray binaries

KW - radial velocities; spatial distribution of galaxies

KW - redshifts

UR - http://hdl.handle.net/10447/46436

UR - http://adsabs.harvard.edu/abs/2008AIPC..968..248I

M3 - Chapter

T3 - AIP CONFERENCE PROCEEDINGS

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EP - 250

BT - International Conference on Astrophysics of Compact Objects

ER -