A search for interstellar bubbles surrounding massive stars in Perseus OB1

We have examined the interstellar medium in the vicinity of massive stars belonging to the Per OB1 association based on neutral hydrogen 21 cm observations obtained with the 100 m radio telescope at Effelsberg (HPBW = 8′.4) and complementary data from the Leiden-Dwingeloo H I Survey (HPBW = 36′). Th...

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Detalles Bibliográficos
Autores principales: Cappa, Cristina Elisabet, Herbstmeier, Uwe
Formato: Articulo
Lenguaje:Inglés
Publicado: 2000
Materias:
Ciencias Astronómicas
ISM: bubbles
ISM: individual (Perseus OB1)
Stars: early-type
Stars: individual
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83551
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-83551
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
ISM: bubbles
ISM: individual (Perseus OB1)
Stars: early-type
Stars: individual
spellingShingle Ciencias Astronómicas
ISM: bubbles
ISM: individual (Perseus OB1)
Stars: early-type
Stars: individual
Cappa, Cristina Elisabet
Herbstmeier, Uwe
A search for interstellar bubbles surrounding massive stars in Perseus OB1
topic_facet Ciencias Astronómicas
ISM: bubbles
ISM: individual (Perseus OB1)
Stars: early-type
Stars: individual
description We have examined the interstellar medium in the vicinity of massive stars belonging to the Per OB1 association based on neutral hydrogen 21 cm observations obtained with the 100 m radio telescope at Effelsberg (HPBW = 8′.4) and complementary data from the Leiden-Dwingeloo H I Survey (HPBW = 36′). The higher angular resolution H I observations allowed us to discover probable wind-blown bubbles related to four massive stars in the association, namely, HD 14442 [O5n(f)p], HD 14947 [O5If+], HD 13022 [O9.5II-III((n))], and HD 13338 [O9.5V], while the detection of a wind-blown bubble associated with HD 16691 [O5If+] is less conclusive. A clear H I shell coincident in position with two B1III stars (HD 15233 and Hilt 311) was also detected. Some of these features also have infrared and/or molecular counterparts. The energetics of the structures related to each massive star is analyzed. The new H I interstellar bubbles appear to be similar to the ones found surrounding Wolf-Rayet stars and other Of stars. The large-scale maps obtained using the lower angular resolution H I data show that most of the early-type stars belonging to Per OB1 are placed in a region of low H I emission. The association could have blown a H I shell of about 350 × 550 pc in size. This large H I shell has an infrared counterpart.
format Articulo
Articulo
author Cappa, Cristina Elisabet
Herbstmeier, Uwe
author_facet Cappa, Cristina Elisabet
Herbstmeier, Uwe
author_sort Cappa, Cristina Elisabet
title A search for interstellar bubbles surrounding massive stars in Perseus OB1
title_short A search for interstellar bubbles surrounding massive stars in Perseus OB1
title_full A search for interstellar bubbles surrounding massive stars in Perseus OB1
title_fullStr A search for interstellar bubbles surrounding massive stars in Perseus OB1
title_full_unstemmed A search for interstellar bubbles surrounding massive stars in Perseus OB1
title_sort search for interstellar bubbles surrounding massive stars in perseus ob1
publishDate 2000
url http://sedici.unlp.edu.ar/handle/10915/83551
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