Skip to main content Accessibility help
×
Home
Hostname: page-component-cf9d5c678-mpvvr Total loading time: 0.184 Render date: 2021-07-28T21:14:32.879Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": true, "newCiteModal": false, "newCitedByModal": true, "newEcommerce": true, "newUsageEvents": true }

The Abundance of SiC2 in Carbon Star Envelopes

Published online by Cambridge University Press:  04 September 2018

Sarah Massalkhi
Affiliation:
Grupo de Astrofísica Molecular, Instituto de Ciencia de Materiales de Madrid, CSIC C/ Sor Juana Inés de la Cruz 3, 28049 Cantoblanco, Spain
M. Agúndez
Affiliation:
Grupo de Astrofísica Molecular, Instituto de Ciencia de Materiales de Madrid, CSIC C/ Sor Juana Inés de la Cruz 3, 28049 Cantoblanco, Spain
J. Cernicharo
Affiliation:
Grupo de Astrofísica Molecular, Instituto de Ciencia de Materiales de Madrid, CSIC C/ Sor Juana Inés de la Cruz 3, 28049 Cantoblanco, Spain
J. P. Fonfría
Affiliation:
Grupo de Astrofísica Molecular, Instituto de Ciencia de Materiales de Madrid, CSIC C/ Sor Juana Inés de la Cruz 3, 28049 Cantoblanco, Spain
M. Santander-García
Affiliation:
Grupo de Astrofísica Molecular, Instituto de Ciencia de Materiales de Madrid, CSIC C/ Sor Juana Inés de la Cruz 3, 28049 Cantoblanco, Spain
Rights & Permissions[Opens in a new window]

Abstract

Silicon carbide dust grains are ubiquitous in circumstellar envelopes around C-rich AGB stars. However, the main gas-phase precursors leading to the formation of SiC dust have not yet been identified. To date, only three molecules containing an Si–C bond have been identified to have significant abundances in C-rich AGB stars: SiC2, SiC, and Si2C. The ring molecule SiC2 has been observed in a handful of evolved stars, while SiC and Si2C have only been detected in the C-star envelope IRC +10216. We aim to study how widespread and abundant SiC2, SiC, and Si2C are in envelopes around C-rich AGB stars and whether or not these species play an active role as gas-phase precursors of silicon carbide dust in the ejecta of carbon stars.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2018 

References

Agúndez, M., Fonfría, J. P., Cernicharo, J., et al. 2012 A&A, 543, A48Google Scholar
Bachiller, R., Forveille, T., Huggins, P. J., & Cox, P., 1997, A&A, 324, 1123Google Scholar
Bakker, E. J., Lamers, H. J. G. L. M., Waters, L. B. F. M. & Schoenmaker, T., 1995, Ap&SS, 244, 335Google Scholar
Bernath, P. F., Hinkle, K. H. & Keady, J. J., 1989, Science, 244, 562CrossRefGoogle Scholar
Cernicharo, J., Gottlieb, C. A., Guelin, M., Thaddeus, P., & Vrtilek, J. M., 1989, ApJ, 341, L25CrossRefGoogle Scholar
Cernicharo, J., Guélin, M., & Kahane, C., 2000, A&AS, 142, 181Google Scholar
Cernicharo, J., Waters, L. B. F. M., Decin, L., et al., 2010, A&A, 521, L8Google Scholar
Cernicharo, J., McCarthy, M. C., & Gottlieb, C. A., et al., 2015b, ApJ, 806, L3CrossRefGoogle Scholar
Chandra, S. & Kegel, W. H. 2000 A&AS, 142, 113Google Scholar
Danilovich, T., Teyssier, D., Justtanont, K., et al. 2015 A&A, 581, A60Google Scholar
Fonfría, J. P., Cernicharo, J., Richter, M. J. & Lacy, J. H., 2008 ApJ, 673, 445CrossRefGoogle Scholar
Fonfría, J. P., Fernández-López, M., Agúndez, M., et al. 2014 MNRAS, 445, 3289CrossRefGoogle Scholar
Fonfría, J. P., Santander-García, M., Cernicharo, J., & Amado, P. J., 2017 in preparationGoogle Scholar
Groenewegen, M. A. T., Whitelock, P. A., Smith, C. H., & Kerschbaum, F. 1998 MNRAS, 293, 18CrossRefGoogle Scholar
Groenewegen, M. A. T., Sevenster, M., Spoon, H. W. W., & Pérez, I. 2002 A&A, 390, 511Google Scholar
Hinkle, K. H., Keady, J. J. & Bernath, P. F., 1988 Science, 241, 1319CrossRefGoogle Scholar
Lucas, R., Gulin, M., Kahane, C., Audinos, P., & Cernicharo, J., 1995, Ap&SS, 244, 293Google Scholar
Ramstedt, S. & Olofsson, H. 2014 A&A, 566, A145Google Scholar
Massalkhi, S., Agúndez, M., Cernicharo, J., et al. 2017 in preparationGoogle Scholar
Müller, H. S. P., Cernicharo, J., Agúndez, M., et al. 2012 Journal of Molecular Spectroscopy, 271, 50CrossRefGoogle Scholar
Schöier, F. L., Lindqvist, M., & Olofsson, H. 2005 A&A, 436, 633Google Scholar
Schöier, F. L., Olofsson, H., & Lundgren, A. A. 2006 A&A, 454, 247Google Scholar
Schöier, F. L., Ramstedt, S., Olofsson, H., et al. 2013 A&A, 550, A78Google Scholar
Speck, A. K., Corman, A. B., Wakeman, K., Wheeler, C. H., & Thompson, G. 2009 ApJ, 691, 1202CrossRefGoogle Scholar
Tejero, J. & Cernicharo, J. Anuario del Observatorio Astronómico de Madrid para, 1992, 1992Google Scholar
Thaddeus, P., Cummins, S. E., & Linke, R. A., 1984, ApJ, 283, L45CrossRefGoogle Scholar
Velilla Prieto, L., Cernicharo, J., Quintana-Lacaci, G., et al. 2015 ApJ, 805, L13CrossRefGoogle Scholar
Yasuda, Y. & Kozasa, T. 2012 ApJ, 745, 159CrossRefGoogle Scholar
Zhang, Y. & Kwok, S., Dinh-V-Trung, , 2009a, ApJ, 691, 1660CrossRefGoogle Scholar
Zhang, Y., Kwok, S., & Nakashima, J.-i., 2009b, ApJ, 700, 1262CrossRefGoogle Scholar
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.

The Abundance of SiC2 in Carbon Star Envelopes
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.

The Abundance of SiC2 in Carbon Star Envelopes
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.

The Abundance of SiC2 in Carbon Star Envelopes
Available formats
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *