On 2010 October 13, the X-ray astronomical satellite Rossi XTE, during the observation of the newly discovered accretion powered X-ray pulsar IGR J17480-2446, detected a lunar occultation of the source. From knowledge of the lunar topography and Earth, Moon, and spacecraft ephemerides at the epoch of the event, we determined the source position with an accuracy of 40 mas (1σ c.l.), which is interesting, given the very poor imaging capabilities of RXTE (~1°). For the first time, using a non-imaging X-ray observatory, the position of an X-ray source with a subarcsecond accuracy is derived, demonstrating the neat capabilities of a technique that can be fruitfully applied to current and future X-ray missions.

Riggio, A., Burderi, L., Di Salvo, T., Papitto, A., Egron, E., Belloni, T., et al. (2012). Subarcsecond Location of IGR J17480-2446 with Rossi XTE. THE ASTROPHYSICAL JOURNAL LETTERS, 754(1), L11-L14 [10.1088/2041-8205/754/1/L11].

Subarcsecond Location of IGR J17480-2446 with Rossi XTE

DI SALVO, Tiziana;IARIA, Rosario;
2012-01-01

Abstract

On 2010 October 13, the X-ray astronomical satellite Rossi XTE, during the observation of the newly discovered accretion powered X-ray pulsar IGR J17480-2446, detected a lunar occultation of the source. From knowledge of the lunar topography and Earth, Moon, and spacecraft ephemerides at the epoch of the event, we determined the source position with an accuracy of 40 mas (1σ c.l.), which is interesting, given the very poor imaging capabilities of RXTE (~1°). For the first time, using a non-imaging X-ray observatory, the position of an X-ray source with a subarcsecond accuracy is derived, demonstrating the neat capabilities of a technique that can be fruitfully applied to current and future X-ray missions.
Settore FIS/05 - Astronomia E Astrofisica
http://adsabs.harvard.edu/abs/2012ApJ...754L..11R
Riggio, A., Burderi, L., Di Salvo, T., Papitto, A., Egron, E., Belloni, T., et al. (2012). Subarcsecond Location of IGR J17480-2446 with Rossi XTE. THE ASTROPHYSICAL JOURNAL LETTERS, 754(1), L11-L14 [10.1088/2041-8205/754/1/L11].
File in questo prodotto:
File Dimensione Formato  
Riggio_2012_ApJL_754_L11.pdf

accesso aperto

Descrizione: Versione dell'editore
Dimensione 742.3 kB
Formato Adobe PDF
742.3 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/64380
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 3
  • ???jsp.display-item.citation.isi??? 3
social impact