About: Stellar birthline     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:WikicatHertzsprung–RussellClassifications, within Data Space : dbpedia.org associated with source document(s)
QRcode icon
http://dbpedia.org/describe/?url=http%3A%2F%2Fdbpedia.org%2Fresource%2FStellar_birthline

The stellar birthline is a predicted line on the Hertzsprung–Russell diagram that relates the effective temperature and luminosity of pre-main-sequence stars at the start of their contraction. Prior to this point, the objects are accreting protostars, and are so deeply embedded in the cloud of dust and gas from which they are forming that they radiate only in far infrared and millimeter wavelengths. Once stellar winds disperse this cloud, the star becomes visible as a pre-main-sequence object. The set of locations on the Hertzsprung–Russell diagram where these newly visible stars reside is called the birthline, and is found above the main sequence.

AttributesValues
rdf:type
rdfs:label
  • Ligne de naissance stellaire
  • Birthline stellare
  • Stellar birthline
  • 恆星誕生線
rdfs:comment
  • La Birthline stellare (o linea di nascita stellare è una linea prevista nel Diagramma Hertzsprung-Russell che correla colore e luminosità delle protostelle alla fine della loro fase iniziale di accrescimento.
  • 恆星誕生線是在赫羅圖上預測成為原恆星時,最初的質量-半徑線。在這個階段之前的原恆星仍被深埋在氣體和塵土的雲氣內,因此僅是輻射出紅外線的區域。當演化作用成稀薄的包層時,恆星成為可以看見的前主序帶天體,才能在赫羅圖上佔有一席之地。那些恆星初現位置的集合就稱為恆星誕生線。 它完全都在主序帶的右側。 這個名詞是在1983年由史蒂芬W. 史塔勒首先提出並介紹的。 恆星誕生線的位置與恆星結構、吸積率、和幾何形狀有關。這意味著,恆星誕生線的位置不能明確的界定,因此在上下文的關聯上,我們甚至可以稱之為恆星誕生帶。
  • La ligne de naissance stellaire est une ligne théoriquement prédite sur le diagramme de Hertzsprung–Russell qui met en relation la température effective et la luminosité d'étoiles de la pré-séquence principale au début de leur contraction. Les étoiles de la pré-séquence principale deviennent optiquement visibles après la ligne de naissance stellaire.
  • The stellar birthline is a predicted line on the Hertzsprung–Russell diagram that relates the effective temperature and luminosity of pre-main-sequence stars at the start of their contraction. Prior to this point, the objects are accreting protostars, and are so deeply embedded in the cloud of dust and gas from which they are forming that they radiate only in far infrared and millimeter wavelengths. Once stellar winds disperse this cloud, the star becomes visible as a pre-main-sequence object. The set of locations on the Hertzsprung–Russell diagram where these newly visible stars reside is called the birthline, and is found above the main sequence.
sameAs
foaf:depiction
  • External Image
dct:subject
Wikipage page ID
Wikipage revision ID
Link from a Wikipage to another Wikipage
Link from a Wikipage to an external page
dbp:wikiPageUsesTemplate
gold:hypernym
prov:wasDerivedFrom
page length (characters) of wiki page
has abstract
  • La Birthline stellare (o linea di nascita stellare è una linea prevista nel Diagramma Hertzsprung-Russell che correla colore e luminosità delle protostelle alla fine della loro fase iniziale di accrescimento.
  • La ligne de naissance stellaire est une ligne théoriquement prédite sur le diagramme de Hertzsprung–Russell qui met en relation la température effective et la luminosité d'étoiles de la pré-séquence principale au début de leur contraction. Les étoiles de la pré-séquence principale deviennent optiquement visibles après la ligne de naissance stellaire. Avant ce moment, les objets sont des proto-étoiles en cours d'accrétion et ils sont si profondément enfoncés dans le nuage de poussière interstellaire qu'il n'émettent que dans les longueurs d'onde infrarouges et millimétriques. Une fois le nuage dispersé par les vents stellaires, l'étoile devient visible telle une étoile de la pré-séquence principale. L'ensemble des emplacements sur le diagramme de Hertzsprung–Russell où se trouvent ces étoiles nouvellement visibles est appelé la ligne de naissance, et se trouve au-dessus de la séquence principale. La position de la ligne de naissance dépend du taux d'accrétion sur l'étoile et de la géométrie de cette accrétion, autrement dit, si elle a lieu via un disque d'accrétion. Ceci implique que la ligne de naissance n'est pas une courbe infiniment étroite, mais possède plutôt une épaisseur finie dans le diagramme de Hertzsprung-Russell.
  • The stellar birthline is a predicted line on the Hertzsprung–Russell diagram that relates the effective temperature and luminosity of pre-main-sequence stars at the start of their contraction. Prior to this point, the objects are accreting protostars, and are so deeply embedded in the cloud of dust and gas from which they are forming that they radiate only in far infrared and millimeter wavelengths. Once stellar winds disperse this cloud, the star becomes visible as a pre-main-sequence object. The set of locations on the Hertzsprung–Russell diagram where these newly visible stars reside is called the birthline, and is found above the main sequence. The location of the stellar birthline depends in detail on the accretion rate onto the star and geometry of this accretion, i.e. whether or not it is occurring through an accretion disk. This means that the birthline is not an infinitely thin curve, but has a finite thickness in the Hertzsprung-Russell diagram.
  • 恆星誕生線是在赫羅圖上預測成為原恆星時,最初的質量-半徑線。在這個階段之前的原恆星仍被深埋在氣體和塵土的雲氣內,因此僅是輻射出紅外線的區域。當演化作用成稀薄的包層時,恆星成為可以看見的前主序帶天體,才能在赫羅圖上佔有一席之地。那些恆星初現位置的集合就稱為恆星誕生線。 它完全都在主序帶的右側。 這個名詞是在1983年由史蒂芬W. 史塔勒首先提出並介紹的。 恆星誕生線的位置與恆星結構、吸積率、和幾何形狀有關。這意味著,恆星誕生線的位置不能明確的界定,因此在上下文的關聯上,我們甚至可以稱之為恆星誕生帶。
foaf:isPrimaryTopicOf
is Link from a Wikipage to another Wikipage of
is foaf:primaryTopic of
Faceted Search & Find service v1.17_git93 as of Oct 15 2021


Alternative Linked Data Documents: iSPARQL | ODE     Content Formats:   [cxml] [csv]     RDF   [text] [turtle] [ld+json] [rdf+json] [rdf+xml]     ODATA   [atom+xml] [odata+json]     Microdata   [microdata+json] [html]    About   
This material is Open Knowledge   W3C Semantic Web Technology [RDF Data] Valid XHTML + RDFa
OpenLink Virtuoso version 08.03.3322 as of Oct 25 2021, on Linux (x86_64-generic-linux-glibc25), Single-Server Edition (62 GB total memory, 45 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2021 OpenLink Software