Skip to main content Accessibility help
×
Home
Hostname: page-component-559fc8cf4f-x5fd4 Total loading time: 0.371 Render date: 2021-03-04T07:28:00.521Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": false, "newCiteModal": false, "newCitedByModal": true }

The Existence of Moving Groups and the Disk Heating Problem

Published online by Cambridge University Press:  25 May 2016

B. Chen
Affiliation:
Departament d'Astronomia i Meteorologia, Av. Diagonal 647, E-08028 Barcelona, Spain
F. Figueras
Affiliation:
Departament d'Astronomia i Meteorologia, Av. Diagonal 647, E-08028 Barcelona, Spain
J. Torra
Affiliation:
Departament d'Astronomia i Meteorologia, Av. Diagonal 647, E-08028 Barcelona, Spain
R. Asiain
Affiliation:
Departament d'Astronomia i Meteorologia, Av. Diagonal 647, E-08028 Barcelona, Spain
C. Jordi
Affiliation:
Departament d'Astronomia i Meteorologia, Av. Diagonal 647, E-08028 Barcelona, Spain

Abstract

A powerful moving group-finding algorithm has been developed and applied to a large sample of B, A and F main sequence stars from the Hipparcos Input Catalogue. Four moving groups near the Sun (Pleiades, Sirius, IC2391 and Hyades) have been identified without assuming any a priori knowledge of the properties of moving groups. This is the most convincing objective evidence for their existence. After the members of the moving groups are removed from the sample, we investigate the disk heating problem. The results show that the velocity dispersion of the local disk stars increases with age, roughly as ≃ ∞ τ1/5.

Type
Chapter 6: How are we to Understand the Large Scale Structure of the ISM?
Copyright
Copyright © Kluwer 1996 

References

Asiaín, R. (1993), Degree in Physics. Universitat de Barcelona.Google Scholar
Figueras, F., Torra, J., Jordi, C. (1991), A&AS 87, pp.Google Scholar
Lacey, C. (1991), in Dynamics of Disc Galaxies , Sundelius, B. (Ed.), 257 Google Scholar
Strömgren, B. (1987), in The Galaxy , Gilmore, G. and Carswell, R. (Eds.), Reidel, 229 Google 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: 59 *
View data table for this chart

* Views captured on Cambridge Core between September 2016 - 4th March 2021. This data will be updated every 24 hours.

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 Existence of Moving Groups and the Disk Heating Problem
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 Existence of Moving Groups and the Disk Heating Problem
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 Existence of Moving Groups and the Disk Heating Problem
Available formats
×
×

Reply to: Submit a response


Your details


Conflicting interests

Do you have any conflicting interests? *