Skip to main content Accessibility help

We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.

Close cookie message
×
Home
  • Home
Hostname: page-component-78dcdb465f-mrc2z Total loading time: 20.223 Render date: 2021-04-15T09:29:12.333Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": false, "newCiteModal": false, "newCitedByModal": true }
EnglishFrançais
Symposium - International Astronomical Union Symposium - International Astronomical Union

Article contents

Lithium-Rich K Giants with Infrared Excesses: Fundamental Parameters and CNO Abundances

Published online by Cambridge University Press:  25 May 2016

Natalia A. Drake ,
Ramiro de la Reza  and
Licio da Silva
Natalia A. Drake
Affiliation:
1Observatório Nacional/MCT, R. José Cristino, 77 CEP: 20921-400, Rio de Janeiro, Brazil 2Astronomical Institute of St. Petersburg University, St. Petersburg, 198904 Russia
Ramiro de la Reza
Affiliation:
1Observatório Nacional/MCT, R. José Cristino, 77 CEP: 20921-400, Rio de Janeiro, Brazil
Licio da Silva
Affiliation:
1Observatório Nacional/MCT, R. José Cristino, 77 CEP: 20921-400, Rio de Janeiro, Brazil
Save pdf (0.26 megabytes)Save pdf (0.26 mb)

Extract

We present the results of an analysis of seven faint K giants with strong Li lines, recently discovered during the Picodos Dias urvey, from high-resolution and high signal-to-noise-ratio spectra. The fundamental parameters of these stars, such as effective temperature, surface gravity, metallicity and microturbulence, were determined. We also obtained LTE abundances of Li and CNO elements and measured the 12C/13C ratios by spectral synthesis using the lines of Li I (λ6104Â and λ6708 Â), C2, CN, and [O I]. The studied Li K stars are found to be red giant branch stars with masses around 1M ⊙.

Type
6. Stellar Knowledge to and from Light Elements
Information
Symposium - International Astronomical Union , Volume 198: The Light Elements and their Evolution , 2000 , pp. 502 - 503
Copyright
Copyright © Astronomical Society of the Pacific 2000 

References

Bell, R.A., Eriksson, K., Gustafsson, B., & Nordlund, Å. 1976, A&AS, 23, 37 Google Scholar
de la Reza, R., Drake, N.A., da Silva, L. 1996, ApJ, 456, L115 CrossRefGoogle Scholar
de la Reza, R., Drake, N.A., da Silva, L., Torres, C.A.O., & Martin, E.L. 1997, ApJ, 482, L77 CrossRefGoogle Scholar
Drake, N.A. 1998, , Google Scholar
Kurucz, R.L. 1993, ATLAS9, Smithsonian Astroph. Obs. CD-ROM no. 13 Google Scholar
Sackmann, I.-J., & Boothroyd, A.I. 1999, ApJ, 510, 217 CrossRefGoogle Scholar

Full text views

Full text views reflects PDF downloads, PDFs sent to Google Drive, Dropbox and Kindle and HTML full text views.

Total number of HTML views: 0
Total number of PDF views: 46 *
View data table for this chart

* Views captured on Cambridge Core between September 2016 - 15th April 2021. This data will be updated every 24 hours.

You have Access

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.

Lithium-Rich K Giants with Infrared Excesses: Fundamental Parameters and CNO Abundances
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.

Lithium-Rich K Giants with Infrared Excesses: Fundamental Parameters and CNO Abundances
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.

Lithium-Rich K Giants with Infrared Excesses: Fundamental Parameters and CNO Abundances
Available formats
×
×

Reply to: Submit a response

Your details

Conflicting interests

Do you have any conflicting interests? *