Pismis 24-1: The stellar upper mass limit preserved

Is there a stellar upper mass limit? Recent statistical work seems to indicate that there is and that it is in the vicinity of 150 M⊙. In this paper we use HST and ground-based data to investigate the brightest members of the cluster Pismis 24, one of which (Pismis 24-1) was previously inferred to h...

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Detalles Bibliográficos
Autores principales: Maíz Apellániz, Jesús, Walborn, Nolan Revere, Morrell, Nidia Irene, Niemelä, Virpi Sinikka, Nelan, E. P.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2007
Materias:
Ciencias Astronómicas
Binaries: close
Stars: early-type
Stars: Fundamental parameters
Stars: individual (Pismis 24-17, Pismis 24-1NW, Pismis 24-1SE)
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83142
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-83142
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Binaries: close
Stars: early-type
Stars: Fundamental parameters
Stars: individual (Pismis 24-17, Pismis 24-1NW, Pismis 24-1SE)
spellingShingle Ciencias Astronómicas
Binaries: close
Stars: early-type
Stars: Fundamental parameters
Stars: individual (Pismis 24-17, Pismis 24-1NW, Pismis 24-1SE)
Maíz Apellániz, Jesús
Walborn, Nolan Revere
Morrell, Nidia Irene
Niemelä, Virpi Sinikka
Nelan, E. P.
Pismis 24-1: The stellar upper mass limit preserved
topic_facet Ciencias Astronómicas
Binaries: close
Stars: early-type
Stars: Fundamental parameters
Stars: individual (Pismis 24-17, Pismis 24-1NW, Pismis 24-1SE)
description Is there a stellar upper mass limit? Recent statistical work seems to indicate that there is and that it is in the vicinity of 150 M⊙. In this paper we use HST and ground-based data to investigate the brightest members of the cluster Pismis 24, one of which (Pismis 24-1) was previously inferred to have a mass greater than 200 M⊙, in apparent disagreement with that limit. We determine that Pismis 24-1 is composed of at least three objects, the resolved Pismis 24-1SW and the unresolved spectroscopic binary Pismis 24-1NE. The evolutionary zero-age masses of Pismis 24-1SW, the unresolved system Pismis 24-1NE, and the nearby star Pismis 24-17 are all ≈100 Mȯ, very large but under the stellar upper mass limit.
format Articulo
Articulo
author Maíz Apellániz, Jesús
Walborn, Nolan Revere
Morrell, Nidia Irene
Niemelä, Virpi Sinikka
Nelan, E. P.
author_facet Maíz Apellániz, Jesús
Walborn, Nolan Revere
Morrell, Nidia Irene
Niemelä, Virpi Sinikka
Nelan, E. P.
author_sort Maíz Apellániz, Jesús
title Pismis 24-1: The stellar upper mass limit preserved
title_short Pismis 24-1: The stellar upper mass limit preserved
title_full Pismis 24-1: The stellar upper mass limit preserved
title_fullStr Pismis 24-1: The stellar upper mass limit preserved
title_full_unstemmed Pismis 24-1: The stellar upper mass limit preserved
title_sort pismis 24-1: the stellar upper mass limit preserved
publishDate 2007
url http://sedici.unlp.edu.ar/handle/10915/83142
work_keys_str_mv AT maizapellanizjesus pismis241thestellaruppermasslimitpreserved
AT walbornnolanrevere pismis241thestellaruppermasslimitpreserved
AT morrellnidiairene pismis241thestellaruppermasslimitpreserved
AT niemelavirpisinikka pismis241thestellaruppermasslimitpreserved
AT nelanep pismis241thestellaruppermasslimitpreserved
bdutipo_str Repositorios
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