The ratio of total to selective absorption in the Carina OB2 association

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Several previous studies in and around the Great Carina nebula (NGC 3372) have strongly indicated an abnormal interstellar extinction law with a high ratio of total to selective absorption R. In the present study, new UBV photometric data and accurate MK spectral-types of stars in the region of the...

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Detalles Bibliográficos
Autores principales: García, Beatriz, Clariá, Juan J., Levato, H.
Formato: Articulo
Lenguaje:Inglés
Publicado: 1988
Materias:
Astronomía
Ciencias Astronómicas
Great Carina nebula
UBV photometric data
MK spectral-types
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/142148
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-142148
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Astronomía
Ciencias Astronómicas
Great Carina nebula
UBV photometric data
MK spectral-types
spellingShingle Astronomía
Ciencias Astronómicas
Great Carina nebula
UBV photometric data
MK spectral-types
García, Beatriz
Clariá, Juan J.
Levato, H.
The ratio of total to selective absorption in the Carina OB2 association
topic_facet Astronomía
Ciencias Astronómicas
Great Carina nebula
UBV photometric data
MK spectral-types
description Several previous studies in and around the Great Carina nebula (NGC 3372) have strongly indicated an abnormal interstellar extinction law with a high ratio of total to selective absorption R. In the present study, new UBV photometric data and accurate MK spectral-types of stars in the region of the Carina OB2 association are used to show that (1) Car OB2 is a genuine stellar association located at a distance of 3.2 kpc, and (2) the interstellar extinction law seems to be normal throughout most of the region. A representative value of R = A; v/E(B − V) = 3.0 is derived for Car OB2 from the variable extinction method.
format Articulo
Articulo
author García, Beatriz
Clariá, Juan J.
Levato, H.
author_facet García, Beatriz
Clariá, Juan J.
Levato, H.
author_sort García, Beatriz
title The ratio of total to selective absorption in the Carina OB2 association
title_short The ratio of total to selective absorption in the Carina OB2 association
title_full The ratio of total to selective absorption in the Carina OB2 association
title_fullStr The ratio of total to selective absorption in the Carina OB2 association
title_full_unstemmed The ratio of total to selective absorption in the Carina OB2 association
title_sort ratio of total to selective absorption in the carina ob2 association
publishDate 1988
url http://sedici.unlp.edu.ar/handle/10915/142148
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