Skip to main content
×
×
Home

Chandra X-Ray Results on V426 Ophiuchi

  • Lee Homer (a1), Paula Szkody (a1), John C. Raymond (a2), Robert E. Fried (a3), D. W. Hoard (a4), S. L. Hawley (a1), M. Wolfe (a1), J. N. Tramposch (a1) and K. Т. Yirak (a1)...
Abstract

From a 45ks Chandra observation of V42G Oph we have obtained high-resolution X-ray spectra at moderate signal-to-noise, and a, good quality, uninterrupted lightcurve. The spectra are reasonably fit with a cooling flow model, similar to EX Hya and U Gem. Our analysis of the Chandra and additional X-ray/optical lightcurves reveals a persistent modulation at 4.2 hr from 1988 to 2003, likely the white dwarf spin period indicating an intermediate polar nature for V426 Oph.

Resumen

De las observaciones de 45 ks de Chandra de V42G Oph hemos obtenido espectros de rayos X de alta resolución con relación señal-a-ruido moderada, y una curva de luz no interrumpida de buena calidad. Los espectros se adaptan razonablemente a un modelo de flujo de enfriamiento, similar a EX Hya y U Gem. Nuestro análisis de las curvas de luz de Chandra y las adicionales de rayos X/óptico revela una modulación persistente a 4.2 hr desde 1988 hasta 2003, probablemente el período de giro de la enana blanca, indicando una naturaleza polar intermedia, para, V426 Oph.

    • Send article to Kindle

      To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

      Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

      Find out more about the Kindle Personal Document Service.

      Chandra X-Ray Results on V426 Ophiuchi
      Available formats
      ×
      Send article to Dropbox

      To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

      Chandra X-Ray Results on V426 Ophiuchi
      Available formats
      ×
      Send article to Google Drive

      To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

      Chandra X-Ray Results on V426 Ophiuchi
      Available formats
      ×
Copyright
References
Hide All
Hellier, C. et al., MNRAS, 242, 32P
Herbig, G. H. 1960, ApJ, 131, 632
Hessman, F. V. 1988, A&AS, 72, 515
King, A. R. & Wynn, G. A. 1999, MNRAS, 310, 203
Mukai, K. et al. 2003 ApJ, 586, L77
Norton, A. J. et al. 2003 ASP C. Ser., (astro-ph/0301351)
Raymond, J. C. 1979, ApJS, 39, 1
Rosen, S. R. et al. 1994, MNRAS, 269, 913
Scargle, J. D. 1982, ApJ, 263, 835
Stellingwerf, R. F. 1978, ApJ, 224, 953
Szkody, P. 1986, ApJ, 301, L29
Szkody, P., Kii, T., & Osaki, Y. 1990, AJ, 100, 546
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Proceedings of the International Astronomical Union
  • ISSN: -
  • EISSN: 0252-9211
  • URL: /core/journals/proceedings-of-the-international-astronomical-union
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Keywords

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed