Skip to main content Accessibility help
×
Home

HCO+ emission possibly related with a shielding mechanism that protects water molecules in the young PN K 3-35

  • Y. Gómez (a1), D. Tafoya (a1) (a2), G. Anglada (a3), L. Loinard (a1), J. M. Torrelles (a4), L. F. Miranda (a3), M. Osorio (a3), R. Franco-Hernández (a1) (a2), L. Nyman (a5), J. Nakashima (a6) and S. Deguchi (a7)...

Abstract

Water maser emission has been detected only toward three planetary nebulae (PNe). In particular, in K3-35, the first PN where water vapor maser emission was detected, the components are located in a torus-like structure with a radius of 85 AU and also at the surprisingly large distance of 5000 AU from the star, in the tips of the bipolar lobes. The existence of these water molecules in PNe is puzzling, probably related to some unknown mechanism shielding them against the ionizing radiation. We report the detection of HCO+ (J = 1 − 0) emission toward K 3-35, that not only suggests that dense molecular gas (~105 cm−3) is present in this PN, but also that this kind of PN can enrich their surroundings with organic molecules.

    • 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.

      HCO+ emission possibly related with a shielding mechanism that protects water molecules in the young PN K 3-35
      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.

      HCO+ emission possibly related with a shielding mechanism that protects water molecules in the young PN K 3-35
      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.

      HCO+ emission possibly related with a shielding mechanism that protects water molecules in the young PN K 3-35
      Available formats
      ×

Copyright

References

Hide All
de Gregorio-Monsalvo, I., Gómez, Y., Anglada, G., Cesaroni, R., Miranda, L. F., Gómez, J. F., & Torrelles, J. M. 2004, ApJ 601, 921
Gómez, Y. 2007, Astrophysical masers and their environments, IAU Proceedings 242, 292
Gómez, J. F., Suárez, O., Gómez, Y., Miranda, L. F., Torrelles, J. M., Anglada, G., & Morata, O. 2008, AJ in press.
Miranda, L. F., Gómez, Y., Anglada, G., & Torrelles, J. M. 2001, Nature 414, 284
Tafoya, D., et al. 2007, ApJ 133, 364
Velázquez, P. F., Gómez, Y., Esquivel, A., & Raga, A. C. 2007, MNRAS 382, 1965
MathJax
MathJax is a JavaScript display engine for mathematics. For more information see http://www.mathjax.org.

Keywords

HCO+ emission possibly related with a shielding mechanism that protects water molecules in the young PN K 3-35

  • Y. Gómez (a1), D. Tafoya (a1) (a2), G. Anglada (a3), L. Loinard (a1), J. M. Torrelles (a4), L. F. Miranda (a3), M. Osorio (a3), R. Franco-Hernández (a1) (a2), L. Nyman (a5), J. Nakashima (a6) and S. Deguchi (a7)...

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