The interstellar medium local to HD 10125
Based on an H I line and 408- and 1420-MHz radio continuum survey carried out at the Dominion Radio Astrophysical Observatory (DRAO), the environment of the O star HD 10125 has been studied. In addition, complementary radio continuum images, as well as infrared data of the same region have been anal...
Autores principales: | , , , , |
---|---|
Formato: | Articulo |
Lenguaje: | Inglés |
Publicado: |
2003
|
Materias: | |
Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/83491 |
Aporte de: |
id |
I19-R120-10915-83491 |
---|---|
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 H II regions Infrared: ISM ISM: bubbles Stars: individual: HD 10125 |
spellingShingle |
Ciencias Astronómicas H II regions Infrared: ISM ISM: bubbles Stars: individual: HD 10125 Cichowolski, Silvina Arnal, Edmundo Marcelo Cappa, Cristina Elisabet Pineault, Serge St-Louis, N. The interstellar medium local to HD 10125 |
topic_facet |
Ciencias Astronómicas H II regions Infrared: ISM ISM: bubbles Stars: individual: HD 10125 |
description |
Based on an H I line and 408- and 1420-MHz radio continuum survey carried out at the Dominion Radio Astrophysical Observatory (DRAO), the environment of the O star HD 10125 has been studied. In addition, complementary radio continuum images, as well as infrared data of the same region have been analysed. An arc-like structure is found in all the radio continuum data. From the 21 -cm line data, an H I minimum is found in the velocity range ‒27 to ‒32kms<SUP>-1</SUP>. Although HD 10125 is not at the centre of the H I cavity, its eccentric position is consistent with the observed stellar proper motion. The H I cavity and the continuum arc-like structure show an excellent morphological correlation. The radio continuum emission has a spectral index (S<SUB>v</SUB> ∼ v<SUP>α</SUP>) α = 0.0 ± 0.1, which establishes the thermal nature of the arc-like feature. The dust temperature obtained from the infrared data is higher in the area where the continuum emission is present. A distance of 3 kpc is derived for the star, the H I cavity and the radio continuum structure. We conclude that all the features we have found are physically related to each other. The O star has enough energetic photons to both ionize the surrounding gas and heat up the dust and, through its powerful wind, also sweep up the H I and H II gas. |
format |
Articulo Articulo |
author |
Cichowolski, Silvina Arnal, Edmundo Marcelo Cappa, Cristina Elisabet Pineault, Serge St-Louis, N. |
author_facet |
Cichowolski, Silvina Arnal, Edmundo Marcelo Cappa, Cristina Elisabet Pineault, Serge St-Louis, N. |
author_sort |
Cichowolski, Silvina |
title |
The interstellar medium local to HD 10125 |
title_short |
The interstellar medium local to HD 10125 |
title_full |
The interstellar medium local to HD 10125 |
title_fullStr |
The interstellar medium local to HD 10125 |
title_full_unstemmed |
The interstellar medium local to HD 10125 |
title_sort |
interstellar medium local to hd 10125 |
publishDate |
2003 |
url |
http://sedici.unlp.edu.ar/handle/10915/83491 |
work_keys_str_mv |
AT cichowolskisilvina theinterstellarmediumlocaltohd10125 AT arnaledmundomarcelo theinterstellarmediumlocaltohd10125 AT cappacristinaelisabet theinterstellarmediumlocaltohd10125 AT pineaultserge theinterstellarmediumlocaltohd10125 AT stlouisn theinterstellarmediumlocaltohd10125 AT cichowolskisilvina interstellarmediumlocaltohd10125 AT arnaledmundomarcelo interstellarmediumlocaltohd10125 AT cappacristinaelisabet interstellarmediumlocaltohd10125 AT pineaultserge interstellarmediumlocaltohd10125 AT stlouisn interstellarmediumlocaltohd10125 |
bdutipo_str |
Repositorios |
_version_ |
1764820488669888513 |