Search for HI bubbles around WR stars: HD 50896
Based on observations of HI 21 cm line emission we have detected a neutral gas bubble surrounding the WR star HD 50896 and its optical ring nebula S 308. The observations were carried out with the 30 m dish antenna of IAR. We have studied the HI gas distribution in the region 233°≤ l ≤237°, -12°≤ b...
Guardado en:
| Autores principales: | , |
|---|---|
| Formato: | Articulo Comunicacion |
| Lenguaje: | Español |
| Publicado: |
1990
|
| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/143168 |
| Aporte de: |
| id |
I19-R120-10915-143168 |
|---|---|
| record_format |
dspace |
| spelling |
I19-R120-10915-1431682024-10-30T18:43:37Z http://sedici.unlp.edu.ar/handle/10915/143168 Search for HI bubbles around WR stars: HD 50896 Cappa, Cristina Elisabet Niemelä, Virpi Sinikka 1990 2022-10-03T12:45:42Z es Astronomía Galaxia hd 50896 Based on observations of HI 21 cm line emission we have detected a neutral gas bubble surrounding the WR star HD 50896 and its optical ring nebula S 308. The observations were carried out with the 30 m dish antenna of IAR. We have studied the HI gas distribution in the region 233°≤ l ≤237°, -12°≤ b ≤ -9°, within the velocity range (-70, +140) km/s with a resolution of 2 km/s. The HI bubble that we have found has its maximum extension at the velocity of +8 km/s, indicating a kinematical distance of 1 kpc, which is similar to the optical distance of the open cluster CR 121. At this distance, the dimensions of the bubble are 25 x 35 pc. Our neutral gas observation suggest that HD 50896 belongs to Cr 121 and has Mᵥ=-3.3. Asociación Argentina de Astronomía Articulo Comunicacion http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Español |
| topic |
Astronomía Galaxia hd 50896 |
| spellingShingle |
Astronomía Galaxia hd 50896 Cappa, Cristina Elisabet Niemelä, Virpi Sinikka Search for HI bubbles around WR stars: HD 50896 |
| topic_facet |
Astronomía Galaxia hd 50896 |
| description |
Based on observations of HI 21 cm line emission we have detected a neutral gas bubble surrounding the WR star HD 50896 and its optical ring nebula S 308. The observations were carried out with the 30 m dish antenna of IAR. We have studied the HI gas distribution in the region 233°≤ l ≤237°, -12°≤ b ≤ -9°, within the velocity range (-70, +140) km/s with a resolution of 2 km/s. The HI bubble that we have found has its maximum extension at the velocity of +8 km/s, indicating a kinematical distance of 1 kpc, which is similar to the optical distance of the open cluster CR 121. At this distance, the dimensions of the bubble are 25 x 35 pc. Our neutral gas observation suggest that HD 50896 belongs to Cr 121 and has Mᵥ=-3.3. |
| format |
Articulo Comunicacion |
| author |
Cappa, Cristina Elisabet Niemelä, Virpi Sinikka |
| author_facet |
Cappa, Cristina Elisabet Niemelä, Virpi Sinikka |
| author_sort |
Cappa, Cristina Elisabet |
| title |
Search for HI bubbles around WR stars: HD 50896 |
| title_short |
Search for HI bubbles around WR stars: HD 50896 |
| title_full |
Search for HI bubbles around WR stars: HD 50896 |
| title_fullStr |
Search for HI bubbles around WR stars: HD 50896 |
| title_full_unstemmed |
Search for HI bubbles around WR stars: HD 50896 |
| title_sort |
search for hi bubbles around wr stars: hd 50896 |
| publishDate |
1990 |
| url |
http://sedici.unlp.edu.ar/handle/10915/143168 |
| work_keys_str_mv |
AT cappacristinaelisabet searchforhibubblesaroundwrstarshd50896 AT niemelavirpisinikka searchforhibubblesaroundwrstarshd50896 |
| _version_ |
1823259492030087168 |